shinsung distribution eqpts

Your Source for Power Distribution Protection & Automation Equipment

Shinsung Industrial Electric Co., Ltd 1

About Shinsung Shinsung has been leading the industry in Korea with innovative products and has set new trends in the industry. Shinsung has its own designs and full capacities to manufacture equipment for electric power distribution systems, a variety of models of fault interrupting and switchgears, providing dependable electrical power distribution worldwide. The products of Shinsung are overhead line reclosers, overhead and pad mounted load break switches, pad mounted ring main circuit breakers, pole mounted sectionalizers, automatic load transfer switches, microprocessor based relays, and RTU based switchgear controls. In addition to the finished products, Shinsung also develops and manufactures most parts and components to assure best quality of products. Sole utility company in Korea, KEPCO (Korea Electric Power Corporation), has been purchasing Shinsung products for last 13 years;

Pole Mounted Load Break Switches Pole Mounted Auto Circuit Reclosers Pad Mounted Load Break Switches Ring Main Circuit Breakers Fuse Cut Out Switch

Shinsung developed and supplied more than 2,500 units of Load Break Switches (“RL 27”) internationally through Nulec Industries Pty., Ltd (Schneider Electric Group), Australia from 1994 to 2002. Shinsung also has been supplying this LBS through Lucy Switchgear (“RAPIER GX 15, 27, 38”), UK since 2001. All those have been installed in major 50 electric power companies worldwide, including Australia, China, Vietnam, Indonesia, Brazil, Taiwan, Thailand, Iran etc.

▲ Head Office & Manufacturing Facility

Cheonan-City, Chungchongnam-Do, Korea


How to Contact Shinsung Head Office & Manufacturing Facility : 190-4 Soohyang-Ri, Sunghwan-Eup, Cheonan-Si, Chungchongnam-Do,

Korea Tel: + 82-41-582-5029 Fax: +82-41-582-8752 [email protected] www.ssiec.co.kr Digital R&D Center 1003 Factoryworld BLDG, 332-2 Wonchun-Dong, Paldal-Gu, Suwon-City, Gyeonggi-Do, Korea Tel: +82-31-214-8732~3 +82-31-213-6647 8∼ Fax: +82-31-211-3584 Main Products in Line

SF6 Gas Load Break Switch up to 38kV (Pole & Pad) SF6 Gas Insulated Vacuum Recloser for 15kV, 25.8kV Ring Main Circuit Breaker (RMCB ) for 15kV, 25.8kV Sectionalizer for 15kV and 25.8kV(LBS & CB) Air Insulated Load Break Switch for indoor use Fuse Cutout for 11kV, 25.8kV (Drop out Type) Automatic Load Transfer Switch SF6 Gas Insulated Automatic Sectionalizing Switch

Quality Management Quality assurance and quality control are of the utmost importance to Shinsung. All our equipment has been designed in accordance with the latest Korean Industrial Standards (KS), IEC and ANSI/IEEE. Shinsung gained ISO 9001 certification in 1995. From the start of manufacturing to final inspection, product quality is strictly monitored to ensure that the most stringent requirements of ISO 9001(2000) are met. Reliability and durability are engineered into every Shinsung product. Rigorous inspection procedures ensure high quality manufacturing and high performance in each application. All of Shinsung's operations include recognized quality procedures and use feedback mechanisms that identify potential problems. Shinsung designs and manufactures equipment for power distribution automation systems used by electric utilities and industrial markets. Overhead line reclosers, overhead and pad mounted load break switches, pad mounted ring main circuit breakers, pole mounted sectionalizers, automatic load transfer switches, fuse cutouts, air insulated load break switches for indoor use, microprocessor based relays, and RTU based switchgear controls are main product line of Shinsung. Shinsung has been pioneering the introduction of new technology in the field of power distribution equipment and systems. Shinsung manufactures a variety of models of fault interrupting and switching products, providing dependable electrical power distribution to millions of people worldwide.

▲SPGAS 15kV Load Break Switch in China


Timelines

Since its founding, Shinsung has pioneered the development of new technologies and trends in the power distribution automation industry of Korea.

1994: Founded "Shinsung Industrial Electric Co., Ltd.", power distribution equipment manufacturing facility, and R&D Center in Suwon city, Korea

1995: Developed 25.8kV 600A Gas Insulated Pole mounted Load Break Switch, and started to supply Pole mounted Load Break Switches internationally through Nulec Industries Pty., Ltd (Schneider Electric Group), Australia.

1997: Developed 25.8kV 600A Gas Insulated Pad Mounted Load Break Switch for feeder automation and microprocessor control for Distribution Automation Systems.

1998: Developed 25.8kV SF6 Gas Insulated Sectionalizer for SCADA.

1999: Developed 25.8kV 630A SF6 Gas Insulated Vacuum Interrupting Recloser for SCADA. Supplied 25.8kV 630 A 12.5 kA Gas Insulated Vacuum Interrupting Ring Main Circuit Breaker for SCADA to KEPCO. 2000: Developed 25.8kV 630 A 12.5 kA Gas Insulated Vacuum Interrupting Ring Main Circuit Breaker for SCADA. 2001: Developed 25.8kV 600 A Gas Insulated Pad Mounted Load Break Switch for SCADA. Started to supply Reclosers and Pole Mounted Load Break Switches (“RAPIER GX 15, 27, 38”) through Lucy Switchgear, UK. 2002: Developed 12kV 630A 20kA Gas Insulated Vacuum Interrupting Ring Main Circuit Breaker for SCADA. 2004 : Contracted Technical License Agreement with Chung-Hsin (CHEM), in Taiwan and Thai Maxwell in Thailand.

2006 : -. Developed Automatic Sectionalizing Circuit Breaker -. Developed Automatic Sectionalizing LBS(Load Break Switch) 2007 : Developed GIS (Gas Insulated Substation) for 24kV system.

▲ RL27 supplied to Nulec Industries


SMRC Series Vacuum Recloser

SMRC is a 3 phase, SF6 gas insulation, vacuum interruption auto circuit recloser designed for pole mounted or substation applications.

SMRC series recloser has been fully certified in accordance with ANSI C37.60 (1981) to meet and exceed customer specifications. All Integrated Design for SCADA system

CT's, voltage sensors, Built-in Internal Potential Transformer are integrated inside the tank. With Internal PT, customers can reduce the costs for separate PT installation, connection cable,

protection fuse cutout, installation mounting frame etc. Robustness and Long Service Life

SF6 gas as an insulating medium and vacuum interrupter as an interrupting medium eliminates the necessity for periodical maintenance for oil.

Stainless steel tank case is TIG welded and double sealed by EPDM rubber, so the tank keeps good gas and water resistant for its service life.

The leakage rate of the SF6 gas from the tank is less than 1.0 × 10-6 cc/sec, 0.2% per year Protection PCB inside the Auxiliary Box provides automatic protection for CT’s from its secondary

side opening and also protection for the control circuit from the surge voltage generated at the voltage sensors.

Robust mechanical construction of SMRC recloser can endure 10,000 times mechanical operations.

Operation Mechanism

Low Voltage Closing Solenoid and Dual Latch Mechanism enables opening time less than 25 ms, clearing time less than 2.7 cycles, mechanical trip free, anti-pumping characteristics, emergency close/open and dead line operability.

Since Dual Latch Mechanism eliminates the problem from the residual flux of closing solenoid, the mechanism realizes fast clearing time (below 0.045 sec or 2.7 cycle)

Pole Mounted Auto Circuit Recloser


Manual Open-lockout Lever at the reclosing body provides a secured open-lock state, and Manual Closing Shaft provides manual closing when the line is deenergized.

Reliable Insulation and Interruption

SF6 gas is non-flammable, odorless, color-less, non-toxic and very stable insulation medium by nature. SF 6 gas quality used in SMCB meets the requirement of IEC60376.

With the industry proven vacuum interrupter and SF6 gas insulation medium, every interruption and insulation ratings of the recloser are guaranteed at atmospheric gas pressure.

SMRC-15-S0 recloser tested at 20kA and SMRC-26-S0 tested at 12.5kA with using vacuum interrrpter.

Safety Devices

SMRC recloser has been designed based on the concept of insulation coordination: external flash-over < internal flash-over < puncture at atmospheric gas pressure

In the event of an internal insulation failure, Safety Bursting Membrane which is located opposite to the manual operating handle ruptures (at 4-6 kgf/cm2 G) to release over-pressure gas to the safe direction. This eliminates the risk from explosion.

Since SMRC recloser is using SF 6 gas instead of oil, a major fire hazard from the internal insulation failure is eliminated, so SMRC recloser can be located close to more sensitive outdoor locations.

Low Pressure Sensor detects minimum gas pressure (0.1 kgf/cm2G) and gives dry contact to control to raise an alarm and/or lockout the electrical operation.

SMRC is totally dead-tank design for the safety of maintenance persons. Electrical Characteristics

Description SMRC-15 SMRC -26

Rated Maximum Voltage 15.5 kV 27 kV

Rated Continuous Current 630 A 630 A

Power Frequency Withstand Voltage ( dry-1min / wet -10sec)

50 kV / 45kV 60 kV / 50kV

Lightening Impulse Withstand Voltage (BIL)

125 kV 150 kV

Rated Fault Making Capacity (peak)

52 kAp 32.5 kAp

Rated Short Circuit Interrupting Current 20 kA 12.5 kA

Mechanical/Electrical Operations 10,000 times 10,000 times

Weight without Mounting Frame 235 Kg 265 Kg


SEL Recloser Control

SEL-351R relay has RTU function and is matched with SMRC series vacuum recloser. Main Recloser Function U.S. and IEC curves, user-programmable curves, and all traditional recloser curves included for maximum recloser control flexibility and coordination. Many functions are integrated as a standard in the SEL relay.

38 Cooper curves 5 US curves 5 IEC curves 4 user defined curves Complex curve Constant time adder Vertical multiplier Minimum response High current trip, lockout Reclose block Cold load pick up Sequence coordination SEF (Sensitive Earth Fault)

Advanced Control Function

Directional over current elements: setting change or blocking against forward and reverse for protection

Negative sequence protection Synchronism checking Fault locator Over/under frequency protection Demand/ Min and Max/ Energy metering Six (6) selectable setting groups ideal for loop scheme application. Sequential events record up to 512 lines Fault events report up to 28 times as 15 cycles, 14 times as 30 cycle Load profiling Breaker wear monitor Operation counter Gas pressure Battery monitor Hot line tag against unexpected local and remote operation Three (3) stage security for setting change Local and remote operation availability at remote setting RS 232 and RS 485 port DNP version 3.00 level 2 Relay-to-relay logic communications Emergency Operation: While control relay is not working, you can close/open the recloser with

Emergency Operation Button in the control. MET Tester Compatibility: Interconnecting control cable is compatible with Cooper control cable, so

the MET tester can be used. Dead Line Closing Module (option): Consisting of Battery, DC/DC converter and Capacitor, this

module can make close operation of recloser in the deenergized line.


R6 Recloser Control Overview R6 is automatic circuit recloser control and feeder remote terminal unit (RTU) for distribution automation application.

Main functions of R6 are 3-phase and ground protection, auto-reclosing and RTU functions for remote operations of recloser. R6 is a fully digitalized and microprocessor-based control devices, so the customers can utilize this control for the powerful function of existing recloser and distribution automation demand at present and in the future.

Function

Main Recloser Function Dual Timing : fast, delay Number of operation to lockout : 1~ 5 Programmable min. pickup : phase, ground, SEF Programmable Reclosing interval Time Current Curve : 36 conventional curves, 5 US curves, 5 IEC curves, 4 user defined curves Complex curve

- Constant time adder - Vertical multiplier - Minimum response

High current trip, lockout Cold load pick up Sequence coordination SEF (Sensitive Earth Fault)

Additional Control Function

Negative sequence Demand/ Min and Max/ Energy metering Six (6) selectable setting groups ideal for loop scheme application. Sequential events record Fault events report Fault wave form report Load profiling Breaker wear monitor Operation counter Gas pressure monitor Battery monitor Hot line tag against unexpected local and remote operation Three (3) stage security for setting change Local and remote operation RS 232 and RS 485 port DNP version 3.00 level 2 for monitoring/ MODBUS for setting, analysis, control, maintenance

and PC communication Emergency Operation: Without relay, you can close/open the recloser electrically with

Emergency Operation Button in the control. MET Tester Compatibility: Since the main control cable of SMRC & R6 has the same pin

number as Cooper recloser, Cooper conventional control cable and MET tester can be used at SMRC recloser and R6 control.

Dead Line Operation (option): Consisting of Battery, DC/DC converter and Capacitor, it achieves dead line operability that is necessary for reconfiguration of the power line during the line outages.


VIT R6 Recloser Control Overview

The VIT Recloser control is designed and developed specially for loop system protection but it also can improve the radial protection. It has many advanced features compared with conventional current controlled recloser and as powerful self-restoration system it is best matched with VIT LBS. When the VIT Recloser is used with VIT LBS, it can identify and isolate the faulted section without limitation of sectionalizing points, and can restore the service by itself without any communication-assisted computer system. It can be used at radial system, loop system and also radial-loop mixed system. There are loop system using 3 or 5 reclosers, but the limitation are limited sectionalizing points, limited setting group change and forced fault making when the fault is at the adjacent section of normally open recloser. Main Features of VIT Recloser control Conventional recloser functions

- Directional phase ground fault protection - Fast, delay curve combination - Sequence coordination - Cold load pick up - Directional SEF protection - Directional negative sequence current protection - Sympathetic trip restraint feature - Event reports - Measurements - Load profile - CB wear monitoring function - DNP3.0 Additional functions - Source side fault lockout feature - Reduced trip shots to lockout when the fault is at load side - Normal open recloser lockout feature when the fault is at adjacent section

(No forced fault making) - Automatic setting group change from normal to reduced load - Maintain the normal setting group of source side recloser during increased load condition

through load encroachment logic. - Sympathetic trip restraint feature during source side faults. - Adaptive protection and measurements according to the power direction: VIT recloser control use the directional element and the polarity is automatically changed according to the power direction.

Hybrid Feeder Automation System using VIT Recloser

Even in communication-assisted feeder automation system, the CB-Recloser coordination scheme can reduce the outage area during temporary and permanent fault. So the large section is protected first by conventional CB-recloser scheme and the small section can be isolated through the FTU of the load break switch. After deciding and isolating the faulted section, it send close command to the normal open switch to restore the service. Automatic setting group change During loop operation the recloser of the unfaulted feeder (source side recloser) should supply more current and the recloser of faulted feeder (load side recloser) may supply reduced current. If the correct setting group can not change automatically, then the computer system has to change the source side, load side recloser settings before sending close command to the normal open switch. The VIT recloser control uses the load encroachment logics for source side recloser and changes the setting group of load side recloser according to the power direction. The load encroachment logics qualify not only current amplitude, but also the power factor, so even the load current exceeds the pickup level, still it can supply the power but if there is actual fault, it trips and protects the distribution line. From the normal load pickup current (1st level) to the increased load pickup current (2nd level) the load encroachment logic qualifies the fault and after increased load pickup current, the fault current amplitude qualifies the fault.


Self Restoration System using VIT Recloser and VIT LBS

The self restoration system can achieve the same or better result than the communication assisted hybrid feeder automation system in the aspect of speed, reliability, expandability, cost, etc. The large section is protected by substation circuit breaker and distribution line recloser and if the fault is permanent after one or two trip of CB, recloser, the VIT LBS open simultaneously and close one by one to identify and to isolate the fault. It can isolate the faulted and can restore the service by itself without communication. The additional functions of VIT recloser are designed to achieve the best performance of the self restoration system matched with VIT LBS but even without the VIT LBS it solve the problem of conventional loop system using recloser likes forced fault making and lockout, non automatic setting group change, difficulty of directional protection during reverse power flow etc.

Operation Mode

Normal Recloser Mode - In normal recloser mode, the operation is exactly the same with conventional recloser. - If the load side of recloser just has sectionalizers, the recloser should operate according to

normal recloser mode. Functions

- Directional phase, ground over current protection - Directional SEF protection - Directional negative sequence current protection - Sympathetic trip restraint feature - Event reports - Measurements - Load profile - CB wear monitoring function - DNP3.0

Radial Line Mode - Basic functions are the same with normal recloser mode - If the recloser is coordinated with 2 or 3 sectionalizers, then the radial line mode is not

necessary - If the down stream of recloser use more than 2 or 3 sectionalizers, the VIT LBS is

recommended - The radial line mode will be best matched with VIT LBS self restoration scheme - Unlike conventional recloser, if the adjacent load side of recloser is a faulted section, then

the recloser goes to lockout with one reduced trips. Loop Line Mode

- Basic functions are the same with normal recloser mode - Source side fault lockout feature - Load side fault lockout feature with reduced number of trips - Loss of voltage lockout feature - Normal open (Tie) recloser adjacent fault lockout feature - Tie recloser close function during one side voltage lost - Automatic setting group change from normal setting group to load side setting group and

vice versa according to power direction - The normal setting group can supply more current without tripping, without scarifying the

sensitivity during loop operation. The load encroachment logics current amplitude and also power factor together. So even the current increased more than min pick up current during loop operation, the control will not start the trip timer until the power factor is out of load zone.


ASCB (Automatic Sectionalizing Circuit Breaker) Overview

ASCB (Automatic Sectionalizing Circuit Breaker) is specially designed and developed to protect the distribution line from the outage caused by customer fault and also to protect the customer facility itself. The ASCB has extremely fast fault clearing characteristics, so it can clear the fault even before the fast operation of recloser and the result is “customer originated fault can not penetrate into the distribution line.”

Many utility company use the recloser to protect the distribution line from temporally fault through the fast operating sequence and in case of permanent fault, the back up circuit breaker, recloser, down stream fuse are coordinated during delay operating sequence of the recloser. If the fault is initiated at the distribution line itself, the fast and delay operating sequence has a meaning, but in case of the fault was initiated at the customer side, even the one fast operation of recloser will not be acceptable, because the operation of recloser results in wide area outage. To coordinate with the recloser fast operation, the circuit breaker of the customer side should be faster than recloser fast operation and it should not mistrip because of inrush current during the reclosing sequence of the back up protection device and also because of system unbalance voltage, delayed recovery voltage during source side fault (sympathetic trip restraint). The minimum clearing time of ASCB is within 3cycles and the response time of recloser fast operation should be longer than 3cycles + 1cycle (the off delay response of cosine filter) and the response delay of the recloser can be modified through minimum response delay time of the recloser. The ASCB has integrated current and voltage sensors and can coordinate with the recloser fast curve, but still can survive during inrush current and sympathetic trip conditions.

The ASCB has many advantages compared with conventional circuit breaker coordination. -. It can clear the fault before the fast operation of recloser -. It can survive during inrush current and sympathetic trip conditions. -. Reduced size (integrated current voltage sensors) -. Reduced cost -. Under voltage protection -. Over voltage protection -. SEF with directional elements (Io, Vo Io protection) -. Loss of phase protection.

Protection Functions OCR Fast curve Standard IEC Curve OCGR Fast curve

Standard IEC Curve Negative sequence current protection SEF Ungrounded system Io protection 100mA~20A

Others Io 100mA ~20A MTA 0~359

TAW 0~±180 Under voltage protection Over voltage protection Loss of phase protection Inrush restraint feature

Phase Block 1~5 sec Ground Block 1~5 sec (This feature is activated when it did not sense the fault current before the fault

is cleared by back up protective device and the reset time be finished after successful restoration.)

Sympathetic trip restraint feature This feature is activated when the fault was initiated at the source side. It use under

voltage with no overcurrent logics to distinguish the fault between source side and load side. Stored energy tripping (one count trip) during manual close sequence after maintenance

work. If the ASCB was locked out and close manually after maintenance works the phase, ground pickup are desensitized and the stored energy tripping function are enabled temporally.

If the back up device open during manual closing sequence, the ASCB open and lockout.


Ratings

Nominal System Voltage 15kV 24kV

Continuous Current 630A 630A

Max. Interrupting Current 20kA 12.5kA, 16kA

Short Time Current (3sec) 20kA 12.5kA, 16kA

Min. Clearing Time < 3cycles < 3cycles

BIL 150kV

Power Frequency Withstand Voltage 60kV


SPGAS series is 3 phase, SF6 gas insulated load break switch (LBS) for overhead lines operating at a voltage up to 38kV. It meets the demand for oil-less and maintenance free operation with SF6 gas, related parts and devices installed inside its hermetically sealed stainless steel tank. The SPGAS load break switch can be manually and electrically operated to suit your power line requirements. The SPGAS series load break switch has been fully certified in accordance with IEC 60694 (1996), IEC 60265-1 (1998) to meet and exceed customer specifications. All-in-one Design for SCADA system

CT's, Voltage Sensors, Built-In Internal Potential Transformer are all fitted in SPGAS switching tank. These make SPGAS Switch to be easily applicable to DAS or SCADA System without any extra costs.

Robustness and Long Life

SF 6 gas as an insulating and interrupting medium eliminates the necessity for periodical oil maintenance.

Compact operation mechanism assembly is located inside the sealed tank case. Therefore, the mechanism assembly is protected from corrosion and every environmental attack.

Stainless steel Tank Case with more than 3 mm thickness is designed for its maximum robustness and minimum welding line tominimize corrosion.

The robust ‘tulip’ type contact made of copper-tungsten tips ensures long contact life. TIG welding process on stainless steel tank and double sealing technique with EPDM rubber shows

0.2% gas leakage rate per year and sealed for life time. SPGAS Switch has simple and robust mechanical construction that it experienced 5,000 times

mechanical operation test and 10,000 times operations are guaranteed. Quick Close/Open, Operator-independent Mechanism

The simple toggle action spring mechanism shows operator-independent quick close, quick open

Pole Mounted Switch SPGAS Series Load Break Switch/ Sectionalizer


operation (below 0.7 sec operation time when electrical operation). Driving motor is coupled with manual operating handle through one way rotating bearing, therefore,

manual operation is always available even though driving motor gets out of order. Reliable Insulation and Interruption Capacity

Experienced and mastery arcing chamber design including pure puffer principle makes the arcing time just half a cycle. Due to this, decomposition of SF 6 gas by the arc is negligible and the insulation capacity of SF6 gas doesn’t decrease during all service life.

All insulation and interrupting ratings of the switch are guaranteed at atmospheric gas pressure (0.0 kgf/cm2G).

The heavy duty tulip type contacts made of copper-tungsten arc resistance material ensures 5 times making current test and 400 times load current switching test.

Safety Devices

In the event of an internal arc fault, Safety Bursting Membrane on the rear side of the SPGAS Switch ruptures to release over-pressure gas. This eliminates the risk of explosion.

Since SPGAS switch is not oil-filled, a major fire hazard is eliminated. In addition, two additional safety devices are available in the SPGAS switch. Firstly, Manual Lockout provides mechanical and electrical lockout when it is pulled down to the lock position using a hook stick. Secondly, Low Pressure Interlock or Low Pressure Sensor locks the operating mechanism or gives signal to the controller if the gas pressure in the tank drops below a pre-set value.

SPGAS switch has passed Internal Arcing Test with 20 kA for 0.1 sec in accordance with IEC 62271-200 and Insulation Coordination Test in accordance with IEC 60071-1.

Electrical Characteristics

Description SPG-15-6 SPGAS-26 SPGAS-36

Rated Maximum Voltage 15 kV 25.8 kV 38

Rated Continuous Current 630A 630A 630A

Rated Impulse Withstand Voltage (BIL) 125 kV 150 kV 195 kV

Rated Short Time Withstand Current (rms) 20 kA (4sec) 25 kA (1sec) 12.5 kA (1sec)

Electrical Operations 400 times 400 times 400 times

Mechanical Operations 10,000 times

10,000 times

10,000 times

Weight without Mounting Frame 180 Kg 200 Kg 250 Kg


L3 Control L3 Control has local control circuit (and board) and analog singnal AC inputs to RTU and space for RTU and modem installation in the future. (This control is not including RTU from the below photo) Features

Control cubicle is fabricated from stainless steel of not less than 2 mm in thickness and suitable for mounting on a pole through a steel channel fixed to the back of the cabinet. It has the characteristics for good thermal insulation, ventilation, and installed with a clamp type grounding terminal connector and padlock etc.

Electric surge protection and impedance-matching circuit board is constructed and tested to meet the latest applicable standards of IEC 60255 and ANSI/IEEE C37.90.1.

Lead acid battery provides DC power to the local control circuit board in case of an AC power loss. The battery has sufficient capacity to sustain more than 24 hours of operation without AC power supply, and has a minimum lifetime of 3 years. The battery is automatically disconnected from the control circuit when the battery voltage falls below a preset value, in order to prevent deep battery discharging.

Auxiliary power cable and control cable have outdoor-rate connectors at each end The control cables are shielded from electromagnetic interference (EMI) and radio frequency interference. Power Supply

Rectified DC 24V power from 220Vac or 120 Vac and the battery supply the control power. 24Vdc power is connected in a parallel with the battery and the other part of the control circuit.

Battery charger has 2 modes: one is a rapid charging mode with higher current and the other is a trickle charging mode with lower current.

Battery: lead acid battery 18 Ah and 24 VDC input toward the control circuit Local Control Circuit

3 current and 6 voltage signal is interfaced with RTU through impedance matching board. Check button for the battery voltage on load condition, and battery charger. Local/remote control selection switch. Local close/open button. Separate Open (green) and Close (red) status LED LAMP. Low gas pressure status LED LAMP.

RTU (Option) The RTU is developed to communicate with center control, to measure the electrical quantity, and to get the fault information. It uses the DSP for calculation and Micro-processor for other tasks. It can measure the V, I, VA, W, VAR and power factor, detect the fault current, and memorize the wave form for further analyzation. Please refer to the chapter, “RTU ” in this document.

RTU


LD Control Unit The LD Switch Control is just for electrical operation at sight. This control has no analog signal input and impedance matching board and it connot be connected to RTU. This small-sized control consists of control cubicle, battery and battery charger, local control panel, receptacles for control and auxiliary power cables, and the control and auxiliary power supply cable. Features

The Control cubicle is fabricated from stainless steel of not less than 2 mm in thickness and suitable for mounting on a pole through a steel channel fixed to the back of the cabinet. It has good thermal insulation, ventilation, and is installed with a lifting lug and pad lock etc.

The Local Control Panel incorporates a lamp tester, close/open button, power on/off switch, fuse holder, close/open lock, battery testing switch and lamp, battery monitoring terminals.

Battery provides DC power to the local control circuit board whether or not AC power source fails. The batteries have sufficient capacity to sustain more than 24 hours of operation without AC power supply, and has a minimum lifetime of 3 years.

The Auxiliary Power Cable and Control Cable has outdoor-rate connectors at each end. The control cables are shielded from electromagnetic interference (EMI) and radio frequency interference. Power Supply

AC power source of 220Vac (or 120 Vac, 50VA) will charge the battery, and the DC power 24 Vdc is connected with a battery charger and battery.

The Integrated Current Transformer (Option) is also available for supplying AC power to the control unit.

The Battery charger has 2 modes: one is a rapid charging mode with higher current and the other is a trickle charging mode with lower current.

The Battery is lead acid with 3.2 Ah and 24 VDC input toward the control circuit


S5 Sectionalizer Control S5 Sectionalizer Control is microprocessor control without RTU. It has functions of phase, ground, SEF current detection, 4 shot counting, Inrush Current Restraint, One Shot to Lockout, Gas Pressure and Battery Monitoring, Fault Event Record, Sequential Event Report. Front Panel Construction LCD Display: 4 Line x 20 Characters LCD Operation Button: 6 Operation Buttons Status LED’s: CONTROL ENABLED, HANDLE LOCK, GAS LOW, AC POWER, BATTERY OK Fault Indication LED’s: A-PHASE, B-PHASE, C-PHASE, GROUND, SEF Test Button: Battery Test Button, Reset/Lamp Test Button Operation Button and Status LED’s: Close Button and Status, Open Button and Status Others: Wake-up Button, RS-232 Communication Port, NFB, Protection Fuse Measurement and Status

Current: Ia, Ib, Ic, Ig Input currents (A primary) Status: Shot Count, Close/Open Status, Operation Counts Digital Input Status: Switch Close/Open, Gas Normal/Abnormal, Handle Lock/Unlock, AC Power On/Off, Battery Good/Fail

Digital Output (0/1) Status: Close, Open, Battery Test Event Report

Fault Event : Ia, Ib, Ic, Ig, Time and Date, Latest 20 events Sequential Event: Relay On, Setting Change, Local Open, Local Close, Switch Open, Open Fail, Switch Close, Close Fail, Gas Low, Gas Normal, Handle Lock, Handle Unlock, AC Power On, AC Power Off, Battery Fail, Cable Connected, Cable Disconnected, Abnormal : Set Value, Abnormal : Checksum, Abnormal : [Voltage Value], Normal : [Voltage Value] , Latest 200 events

Setting Ranges The Settings of S5 can be made through LCD Buttons in the control or through personal computer.

Minimum Pickup Phase: 10-640A/1A steps Minimum Pickup Ground: OFF, 3.5-320A, /0.1A Minimum Pickup SEF:OFF, 1.5-3.5A /0.1A Shot Count: 1-4/ 1 Count Reset Time: 1-60000 cycle / 1 cycle Inrush Restraint - Multiple Phase: 1-10, Block / 1 - Time Phase: 1-60 cycle / 1 cycle - Multiple Ground: Block - Time Ground: 1-600 cycle / 1cycle

One Shot To Lockout: Enable, Disable One Shot To Lockout Reset Time: 1-60000 cycle / 1 cycle Time Setting: Year/Month/Date, Hour:Min:Sec

General Specification

Power Source Inputs: AC 220V standard, and other values (110, 240 Vac) also available Frequency: 50/60Hz Battery:

Output Voltage: DC 24V


Capacity: 7Ah at +25°C Block Overcharge: 29V Block Over discharge: 22V Battery and Charger Check Circuit: Yes Run Time: over 24 hrs (or more time as option) without AC power Switch Control: over 100 times (or more times as option) without AC power Recharging Time: within 48 hrs after full discharge Life Time: 3 years (varies according to ambient temperature)

S5 Relay Power Supply : DC 24V Power and Control Cable Interface

Power Cable and Receptacles: 3 pins Control Cable and Receptacles: 37 pins

Environmental Condition Ambient Operation Temperature: -25 °C ~ 70°C

* LCD contrast impairs for temperature below 0°C (- 20°C as option)

Humidity: 5 ~ 95 % RH Control Cubicle

Dimension: H500 x W350 x D225 (mm) Weight: 23kg Material: Stainless Steel

Test Standards Dielectric Strength: IEC 60255-5 Impulse: IEC 60255-5 1 MHz Burst: IEC 60255-22-1 Electrostatic Discharge: IEC 60255-22-2 Radiated Radio Frequency: IEC 60255-22-3, IEEE C37.90.2 Fast Transient: IEC 60255-22-4 Surge Withstand: IEEE C37.90.1 (1989) Vibration: IEC 60255-21-1 Shock & Bump: IEC 60255-21-2 KSC 0220: Low Temperature Test KSC 0221: High Temperature Test


VIT L6 LBS Control Oerview

The VITL6 VIT LBS CONTROL uses the voltage, current, time elements to achieve feeder automation without communication. It reserves the advantage but overcome the disadvantage of conventional current controlled scheme, voltage-time controlled scheme. The results are - Fast fault isolation, restoration the service without

communication. - Reduced number of switch operation. - Unlimited number of switch can be coordinated. - There is no series coordination problem even in loop

network. - It can be used in radial, loop and radial, loop mixed

network. - Using fault point locator, it can identify the faulted section without communication.

Operation

The VITL6 have 4 operating modes to achieve best coordination. Radial sectionalizer mode

The radial sectionalizer mode is the best choice at the end of the radial line. The operation of radial sectionalizer mode is exactly the same with current, counts controlled sectionalizer. Max. three sectionalizer can be used according to the numbers of operation to lockout of the backup protective device. If the backup device is circuit breaker, one or two counts sectionalizer can be used and if the backup device is recloser, one, two, three counts sectionalizer can be coordinated. But if it is necessary to sectionalize more points, the remaining switches other than one or two sectionalizers, should be set to radial normal close mode. Radial sectionalizer mode has the same features with current, counts controlled sectionalizer. - Directional phase, ground min. pick up. - Counts one, two, three. - Counts reset timed from load current condition. - Inrush restraint feature.

This feature is activated when the control experience normal current before current cessation to avoid miscounting because of the inrush current during reclosing process of back up device.If this feature is activated, the min. pickup raised to the preset multiply during preset restraint time.

- Sympathetic count restraint feature. This feature is activated when the fault is at source side based on under voltage, no fault current logics. This feature desensitize the pickup level during preprogrammed time interval.

- Count restraint feature using voltage element. - One count to open feature during manual closing.

Radial normal close mode

This operating mode is selected to expand the number of switches in radial line. The important features are - fault current counting : phase ground - Counting reset from load current condition. - Close timer. - Load side lockout timer. - Counts block timer. Unlike conventional V-T controlled scheme, only the switch experienced the fault will be open after counts, so the restoration is much fast and can give the chance for backup device to clear the temporary fault. Also the number of switch operation is reduced more than 50% of V-T scheme through fault current tripping and counts block function.

Loop normal close mode

If this operating mode is selected, it has more functions than radial normal close mode.


- Loss of voltage lockout feature. - Loss of voltage, fault current counting. - Counting reset from load current coordination. - Close timer - Load side lockout timer. - Source side lockout timer. - Counts block timer. If there is a fault in loop network, the source and load side is isolated already before the normal open switch close, so it can avoid unnecessary outage during normal close switch close.

Loop normal open mode. This operating mode has the same function with loop normal close mode, but has more function. - Normal open source side lockout feature. - Normal open close timer. - Two setting group according to the power direction. S1 -> S2, S2 -> S1 - Automatic mode change from normal open mode to normal close mode when it is closed. - Automatic mode change from normal close mode to normal open mode and lockout when it is

open by manually. This lockout state will be reset automatically when there is both side voltage.


ASLBS

Overview

ASLBS is specially designed and developed to protect the distribution from the outage caused by customer fault and also to protect the customer facility itself. Many utilities use the recloser more and more at the middle of distribution line and the customer install the fuse or circuit breaker, then it is relatively difficult to coordinate between substation circuit breaker, recloser and customer protection device. In case the fault is temporally and initiated at the distribution line itself, the fast operation sequence of recloser is useful to remove the temporally fault, but if the fault is initiated at the customer side, the best way is to isolate the fault by the customer protection device itself before the operation of recloser or at the minimum after one fast operation of recloser The ASLBS combined with back up fuse, operate similar with fused switch but have more functions such as sectionalizer, over load protection, earth fault protection up to the interrupting current, over voltage protection, loss of phase protection etc.

If the overload protection function is disabled, then it operates as the same with conventional sectionalizer, so it can be used not only for customer protection but also for distribution line protection.

Protection Functions

Sectionalizer The ASLBS has the same functions of the sectionalizer, so it can best coordinate with back up recloser

Count 1,2,3 Count reset time: Timed from successful restoration Phase pick up Ground pick up SEF pick up with directional element Inrush restraint feature Phase Block 1~5 sec Ground Block 1~5 sec Automatic one count to open during manual closing Sympathetic trip restraint Prevent the mis-tripping due to the system unbalance voltage and

or delayed recovery voltage during source side fault.

Over load protection, ground fault protection, direction SEF protection The ASLBS has the functions of OCR, OCGR and directional SEF up to the interrupting capability (locking

current). If the fault current exceed the locking current, then the tripping actions is inhibited and after the fault current is reduced below locking current, the ASLBS trips and lockout. If the fault current is high and the fault is cleared by the back up recloser or circuit breaker, then the ASLBS works as sectionalizer. To prevent the customer fault to penetrate into the distribution line, the count will be set to one count and in this case if the fault is below the operating level of back up device, the ASLBS clears the fault by itself, but if the fault current is over the operating level of back up device, the fault will be isolated after one fault count before the 1st reclosing of back up device. This OCR, OCGR, SEF protection functions can be enabled or disabled, and if it is enabled these functions are always activated regardless of the counts of sectionalizer functions. In case of ungrounded system, the customer side ground fault can be detected just through the amplitude of zero phase current if the load side capacitance is small, but if the ASLBS is installed at the line and the load side capacitance is enough, the ground fault should be justified through zero phase voltage, zero phase current and the phase angle between zero phase voltage and current.

Phase curve Standard IEC Inverse curve Ground curve Standard IEC inverse curve SEF Io 100mA ~ 20A No ~ % MTA 0~359 TAW 0~±180 Sympathetic trip restraint Prevent the mis-operation due to system unbalance voltage and or delayed recovery voltage

during source side fault multiply 2~5x During 15~60sec

Over voltage protection If the source side is protected by single phase protection device, the ASLBS can experience over voltage, because of Feroresonance phenomena, and in this case the over voltage protection functions can protect the system and facilities from the over voltage.

Under voltage protection

Loss of phase protection If the source side distribution line loss one or two phase voltage, the loss of phase protection can protect 3

phase load (likes 3 phase motor) from damage. This function can be enabled or disabled.


SMCB Series Ring Main Circuit Breaker

SMCB Ring Main Circuit Breaker is pad mounted fully deadfront switchgear for up to 25.8kV, 630A underground system, combining puffer load break switches and vacuum fault interrupters. This SMCB series switchgear incorporates grounding switches in every ways to provide added safety and faster operation. Every bushing in this switchgear is installed with one set of CT and voltage sensors, so all electrical values of a connected distribution system can be measured. And, combined with SCADA-ready control based on SEL-551 relay or SEL-501-2 relay and RTU, this switchgear can be remotely operated from a system control center. SMCB series Ring Main Circuit Breakera have been fully certified in accordance with IEC 60265-1, ANSI C37.60 (1981) and ANSI/IEEE C37.71 (1984) to meet and exceed customer specifications. All-in-one Design for SCADA system

CT's, voltage sensors fitted on bushings, Auxiliary PT (Power Transformer), RTU are all integrated in SMCB. These enable SMCB to be easily applicable to DAS or SCADA System without any extra costs.

Integrated Auxiliary PT achieves a self-power supply system for the control circuit. With this,

customers can reduce the costs for a separate PT installation work, connection cable, protection fuse, installation accessories etc. It integrates a short-circuit protection system and power fuse in itself.

Robustness and Long Service Life

Using SF 6 gas as an insulating medium, it eliminates the necessity for periodical oil maintenance. Stainless steel Tank is TIG welded and the other sealing points (bushings, operating shafts, gas

filling valve) are sealed by EPDM rubber, so the Tank keeps good gas and water sealing characteristics for its service life.

Ring Main Circuit Breaker


The leakage rate of the SF6 gas from the Tank is less than 4.0 × 10-6 cc/sec, 0.012% per year , sealed for life time.

To maintain the insulating capacity of SF6 gas during the service life, there is a moisture absorber bag inside the tank.

Energy stored spring charge mechanism (for CB) and quick close quick open spring toggle mechanism (for Switch) are located inside the mechanism case on the switching tank. Therefore, the mechanism parts are protected from every physical and environmental attack.

Control Unit (by its switches and input part) provides automatic protection for CT’s from its second side opening and also for control circuit from the surge voltage generated at the voltage sensors.

Stainless steel Tank made of SUS 304 with 3-5 mm thickness is designed for its maximum robustness and minimum welding line.

The Tank is designed for its maximum robustness. Therefore, even at a bursting pressure of the safety membrane (1.5 kgf/cm 2 G), the switching operation is not disturbed, and the Tank and bushings are not damaged up to that pressure. Its minimum welding line on stainless steel Tank minimizes its corrosion.

Time-, industry-proven vacuum interrupter ensures safe and lifetime interruption for CB. Switch part and CB part experienced 5,000 times mechanical operations, and 10,000 times

mechanical operations are guaranteed for both CB and Switch parts. Operating Mechanism

The operation mechanism of SMCB is comprised of energy stored spring charge mechanism for CB, spring toggle action mechanism for load-break switch and three phase group-operating principle for both.

Manual close/open of CB part is carried out by two operation parts, spring charging part and close/open button on the mechanism case. Electrical operation is performed by spring charging motor and close/open button on the control panel.

Manual close/open of Switch is carried out by an operating shaft. Electrical operation is performed by driving motor and close/open button on the control panel.

Earthing Circuit close/open of CB and Switch is manually carried out by an operating shaft. Energy stored spring charge mechanism has about 25 ms opening time, 2.7 cycles clearing time,

mechanical trip free and anti-pumping characteristics. Spring toggle mechanism shows operator-independent quick close quick open (700 ms)

closing/opening operation. Since any manual operating mechanism of CB and Switch is independent of each electrical

operating mechanism, manual operation is always guaranteed, even when driving motor or any part of electrical operation module is out of order.


SF 6 gas is non-flammable, odorless, color-less, non-toxic and very stable insulation medium by nature. SF 6 gas quality used in SMCB meets the requirement of IEC60376.

In case of CB part, SF 6 gas provides electrical insulation only, but load and fault interruption takes place inside the sealed vacuum interrupter. In case of Load Break Switch part, insulation and interruption media are SF 6 gas.

Arcing chamber using pure puffer principle makes the arcing time just half a cycle. Thus the decomposed SF 6 gas quantity by the arc is negligible and the insulation of SF6 gas doesn’t decrease during its service life.

All the electrical characteristics are guaranteed at atmospheric gas pressure. The industry proven vacuum interrupter of CB part experienced 58 times fault making and

interrupting duty cycles at 20 kA with 15kV class SMCB and 12.5 kA with 25.8kV class SMCB. The heavy duty tulip type contacts of Switch part are made of copper-tungsten arc resistance

material. The contacts experienced 5 making current operations and 100 load current switching operations. However, since the contacts are common with pole top Switch, we can guarantee for 400 times load current switching operations, citing the test reports of SPGAS pole top Switch.

Epoxy Bushing has voltage screen to give analog signal input to RTU. Safety Devices

In the event of an internal insulation failure, Safety Bursting Membrane at the bottom side of the Tank ruptures (at 1.5 kgf/cm2 G) and release over-pressure gas in the safe direction. This eliminates the risk of the Tank explosion.

Since SMCB is using SF 6 gas instead of oil, a major fire hazard from the internal insulation failure is eliminated and SMCB can be located close to more sensitive outdoor locations.


Mechanical Interlock between Main Switch and Earthing Switch Low Pressure Sensor detects minimum gas pressure (0.1 kgf/cm2G) and gives dry contact to

control unit. Gas Pressure Gauge monitors the gas pressure at front side. A padlock of Manual Operating Shaft Hole is provided to its lid in order to secure safety for

maintenance persons. Microprocessor Based Control

Micro-processor controlled relays, SEL-551 or SEL-501-2 can not only protect the distribution line but also measure (SEL-551 only) and memorize fault current wave form date.

SEL-551 relay is programmable from local or remote, so easy optimal coordination with upstream and downstream devices are available.


Description SMCB-16 SMCB-26

Maximum System Voltage 15 Kv 25.8 kV


Electrical Operating Time of CB (Close/Open) Electrical Operating Time of LBS (Close/Open)

60/25 ms

700 ms

60/25 ms

700 ms

Minimum Clearing Time of CB 2.7 cycle 2.7 cycle

Short Time Withstand Current ( rms) 20 kA (4 sec) 12.5 kA (1sec)

Breaking Capacity of CB 20 kA 12.5kA

Insulation Level

Lightning Impulse Withstand Voltage 95 kV BIL 125 kV BIL

Weight without Outer Enclosure 670 Kg (2CB 2SW)


C3 Control for Ring Main Circuit Breaker

C3 Control with SEL-551 relay or SEL-501-2 relay is connected with SMCB series Ring Main Circuit Breaker. It can communicate with SCADA or DAS via RTU and modem Features

Control cubicle mounted and fixed on the top of the circuit breaker is fabricated from stainless steel of not less than 2 mm thickness.

SEL-551 is overcurrent and reclosing relay, and can control one CB. It performs phase, ground, and negative-sequence overcurrent protection; multiple-shot reclosing relay with sequence coordination with 10 TCC's (Time-Current Curves) including 5 IEC curves and 5 US curves.

SEL-501-2 is a dual overcurrent relay without reclosing relay, and can control two(2) CB. It performs phase, ground, and negative-sequence overcurrent protection with 8 TCC's (Time-Current Curves) including 4 IEC curves and 4 US curves.

SEL-551 or SEL-501-2 protective relay is programmable from local or remote position, so optimal coordination with upstream and downstream devices are possible.

For more information about SEL-551 relay, click below link. http://www.selinc.com/sel-551.htm For more information about SEL-501-2 relay, click below link. http://www.selinc.com/sel-

501.htm Electric surge protection and impedance-matching control circuit board is constructed and

tested to meet the latest applicable standards of IEC 60255 and ANSI/IEEE C37.90.1. Lead acid battery provides DC power to the local control circuit board in case of an AC power

source loss. The battery has sufficient capacity to sustain more than 24 hours of operation without AC power, and has a minimum lifetime of 3 years. The battery is automatically disconnected from the control circuit when the battery voltage falls below a preset value in order to prevent deep battery discharging.

Power Supply

Rectified DC 24V power from 220Vac or 120 Vac and the battery supply the control power.. Battery charger has 2 modes: one is a rapid charging mode with higher current and the other is a

trickle charging mode with lower current. Battery: lead acid battery 35 Ah and 24 VDC input toward control circuit.

Local Control Circuit

3 current and 3 voltage signal per one way is interfaced with RTU through impedance matching board.

Check button for the battery voltage on load condition and battery charger Local/remote control selection switch Local close/open button Separate Open (green) and Close (red) status LED LAMP

RTU (option) The RTU is developed to communicate with a center control, to measure the electrical quantity, and to get fault information. It uses the DSP for calculation and micro-processor for other tasks. It can measure the V, I, VA, W, VAR and power factor, detect the fault current, and memorize the wave form for further analyzation. Please refer to the chapter, “RTU ” in this document.


S Series Load Break Switch

SSPGS is SF6 pad mounted switch for automation of underground system. It has mechanically interlocked earthing switches and integrates CT’s and voltage sensors to give analog signal inputs to RTU.

SSPGS Series pad mounted load break switch has been fully certified in accordance with IEC 60265-1 and ANSI/IEEE 37.71 (1984) to meet and exceed customer specifications.

All-in-one Design for SCADA system

CT's, Voltage Sensors, Power Transformer (option) are all fitted at SSPGS. This all-in-one SSPGS RMU is easily applicable to DAS or SCADA System without any extra costs.

Microprocessor Based Control

Combined with CT's and voltage sensors, RTU can measure electrical quantities and fault information.

SF 6 gas as an insulating medium eliminates the necessity for periodical oil maintenance. Stainless steel Tank is TIG welded and the other sealing points (bushings, operating shafts, gas

filling valve) are sealed by EPDM rubber, so the Tank keeps good gas and water sealing characteristics during its service life

Robustness and Long Service Life

The leakage rate of the SF6 gas from the Tank is less than 2.5 × 10-7 cc/sec, 0.0075% per year,sealed for life time.

Gas molecular absorber. Quick close quick open operator independent spring toggle mechanism. CT shorting device. Safety Membrane bursting at 1.5 kgf/cm2G. SSPGS experienced 5,000 times mechanical operation test and 10,000 times mechanical

operations are guaranteed.

Pad Mounted Load Break Switch


Quick Close/Open, Operator-independent Mechanism

The operation mechanism is operator independent spring toggle action mechanism with three phase group-operating principle.

Manual and electircal operation. Electrical closing/opening times are both 70 ms.


SF 6 gas is non-flammable, odorless, color-less, non-toxic and very stable insulation medium by nature. SF 6 gas quality used in SSPGS meets the requirement of IEC60376. Insulation and interruption are all carried out by SF 6 gas.

Arcing chamber using puffer principle makes the arcing time just a half cycle. Thus the decomposed SF 6 gas quantity by the arc is negligible and the insulation capacity of SF6 gas doesn’t decrease during its service life.

All the electrical characteristics are guaranteed at atmospheric gas pressure. The heavy duty tulip type contacts are made of copper-tungsten arc resistance material. The

Switch can endure more than 5 making current operations and 400 load current switching operations.

Safety Devices

Safety Bursting Membrane at the bottom side of the tank ruptures at 1.5 kgf/cm2 G to release excessive pressure gas pressure

Since SSPGS is using SF 6 gas instead of oil, a major fire hazard from the internal insulation failure is eliminated and it can be located close to more sensitive outdoor locations.

Mechanical Interlock between Main Switch and Earthing Switch Low Pressure Sensor detects minimum gas pressure (0.1 kgf/cm2G) and gives dry contact to

control unit Gas Pressure Gauge monitors the gas pressure. Padlock arrangement for unexpected manual operation security. The nominal gas pressure is 0.7 kgf/cm2G. However all the electrical ratings and characteristics are

guaranteed at atmospheric gas pressure.


Description SSPGS-16 SSPGS -26

Maximum System Voltage 15 Kv 25.8 kV


Rated Fault Making Current (peak) 52 kAp 32.5 kAp

Electrical Operating Time (Close/Open) 700 ms each 700 ms each

Number of Mechanical Operations (main) Number of Mechanical Operations(ground)

5,000 times 1,000 times

5,000 times 1,000 times

Short Time Withstand Current ( rms) 20 kA (4 sec) 12.5 kA (1sec)

Lightning Impulse Withstand Voltage 95 kV BIL 125 kV BIL

Power Frequency Withstand Voltage 50 kV 60 kV Insulation Level

DC Voltage Withstand Voltage 53 kV 78 kV


P2 Control for Pad Mounted Load Break Switch

This control has been designed to work with the SSPGS-AUTOMATIC Type pad mounted load break switch. It can communicate with SCADA or DAS via RTU and modem.

Features

The control cubicle mounted and fixed on the top of the pad mounted load break switch is fabricated from stainless steel of not less than 2 mm thickness.

The Electric surge protection and impedance-matching control circuit board is constructed and tested to meet the latest applicable standards of IEC 60255 and ANSI/IEEE C37.90.1.

The Lead acid battery provides DC power to the local control circuit board in case of a AC source power loss. The battery has sufficient capacity to sustain more than 24 hours of operation without AC power, and has a minimum lifetime of 3 years. The battery is automatically disconnected from the control circuit when the battery voltage falls below a preset value, in order to prevent deep battery discharging.

Power Supply

Rectified DC 24V power from 220Vac or 120 Vac and the battery supply the control power. Battery charger has 2 modes: one is rapid charging mode with higher current and the other is trickle

charging mode with lower current. Battery: lead acid battery 35 Ah and 24 VDC input toward control circuit

Local Control Circuit

3 currents and 3 voltage signals per one way is interfaced with RTU through impedance matching board.

Check button for the battery voltage on load condition and battery charger Local/remote control selection switch Local close/open button Separate Open (green) and Close (red) status LED LAMP

RTU (Option) The RTU is developed to communicate with center control, to measure the electrical quantity, and to get the fault information. It uses the DSP for calculation and Micro-processor for other tasks. It can measure the V, I, VA, W, VAR and power factor, detect the fault current, and memorize the wave form for further analyzation. Please refer to the chapter, “RTU ” in this document.


RTU

The RTU for pole top switch (P3) and the RTU for pad mounted switch (U3) are widely used in KEPCO distribution network. The RTU have special fault indicator logics to send the fault information to host computer and the host computer decide the faulted section according to fault, no fault logics The section between the load side fault and the source side no fault should be a fault and it is isolated by the open command from computer. The close command of normally open switch to restore the service is done by manually or automatically. The RTU also has loss of phase logics to protect the distribution line from high impedance ground fault. If there is a high impedance ground fault and so one or tow lose of the voltage, the load side RTU of faulted section sends a loss of phase information to the host computer, then the computer decides the faulted section according to similar logics of fault, no fault logics. The isolation and restoration process is the same as fault current situation. Inputs, Outputs The P3 RTU for pole top switch has 3 current inputs and 6 voltage inputs and controls one switch. The U3 RTU for pad mounted switch has 12 current inputs and 12 voltage inputs and controls four(4) switches simultaneously.

Measurement

Instantaneous Metering

Currents I a,b,c,n input currents

Voltages V a,b,c wye-connected voltage inputs

Mw a,b,c megawatts (wye-connected voltage inputs only) Power

Mvar a,b,c megavars (wye-connected voltage inputs only)

Power factor PF a,b,c power factor; leading or lagging

Demand Metering


MW a,b,c megawatts (wye-connected voltage inputs only) Power

MVARa,b,c megavars (wye-connected voltage inputs only)

Max./Min. Metering


U3 RTU for Pad Mounted Switchgears P3 RTU for Pole Mounted LBS


MW3p three-phase megawatts Power

MVAR3p three-phase megavars

Events Many kinds of events with time tags are useful for analysis of the switch, RTU, communication and power line.

Power - on/off Ext. Power - on/ off Self testing result Change the settings Switch - close/open (remote/local communication port) Lock/unlock Low gas Low battery Line voltage - on/off, source side/load side Fault - pick up/drop out Phase discord One or two loss of line voltage

Fault Indicator The fault information is used for identifying the faulted section. It has special logics to distinguish between the temporary fault and permanent fault.

Inrush Restraint Feature: If the RTU experienced the normal current before current cessation, the inrush restraint feature is activated and then the min pick-up will be multiplied during presetting time interval to restraint mis-fault indication because of inrush current.

Pre-detecting Time (software programmable) :If the over current condition lasts more than this time, it is validated as the start of a potential fault

In Progress: It memorizes the current, voltage, wave form until the over current condition finishes, and it takes the maximum rms fault current.

Final : If the over current condition is finished and the current goes to 0 (the back up protection device clears the fault.) or goes to normal current (the forward protection device clears the fault), then it finalize the former process as one fault events, but the final decision of termporary or permanent fault is still withheld. It waits for the maximum reclosing interval of the back up device, and when the programmed time elapses it finally decides whether the over current was a temporary or permanent fault. Every effective over current condition is recorded as the events and the final temporary or permanent fault information is recorded as fault indicator information. It consists of start time, fault current level, end time, number of over load conditions and temporary or permanent fault information. The fault indicator can check the forward fault or reverse fault to give the correct fault information.

Communication Ports

Port 1: RS-232 for connection with modem via DNP 3.0 level 2 Port 2: RS-232 on the front panel for communication with Personal Computer.


APPLICATION The primary purpose of fuse cutout is to provide protection to the lines of your system and the various apparatus on those lines such as transformer, capacitor banks, etc. Shinsung cutouts provide reliable protection from low level overloads that just melt the fuse link, through intermediate faults and very high faults up through maximum interrupting capacity. RATINGS/SPECIFICATION Shinsung cutouts have maximum design voltage ratings to simplify the confusing ratings of cutouts, there are NO RESTRICTIONS on application to grounded wye, ungrounded wye, or delta systems having maximum operating voltages (line-to-line) equal to or less than the cutout maximum design voltage rating. Interruption tests have been performed at full system line-to-line voltage. In each voltage class, there are continuous current ratings of 100amps. CONSTRUCTION

Efficient Current Transfer Shinsung cutout has all copper current path. All contacts are silver-plated. All Shinsung cutouts are furnished with hooks for use with a portable load break tool. These sturdy galvanized hooks are mounted on the top support.

Top Contact The contact latch is attached to the top copper alloy support to provide a smooth self-aligning action during closing even in severely corrosive environments. The top contact provides a socket type cavity

Fuse Cutout Switch


for latching the fuse holder. The top contact is made of a highly conductive copper strip with silver-plated embossments to resist corrosion. The contacts are held under constant pressure designed to maintain firm contact with the fuse holder contact surface until fault interruption is accomplished.

Hinge The hinge on the Shinsung cutouts employs large pivot areas for the fuse holder’s trunnion and is cast of a copper alloy chosen for its strength and corrosing resistance. The hinge contacts are highly conductive copper alloy stampings and plated to assure low resistance current transfer from the trunnion casting. The parallel current paths are backed up by high strength cantilever springs and are riveted to the hinge castings. Fuse holder can be dropped into place and easily lifted up and out.

Insulators The insulators used on Shinsung cutouts are a sky glazed gray.

Fuse holder The solid cap on the single vent fuse holder is a copper alloy, silver-plated to provide efficient current transfer. An integral ring is provided in the top tube casting for opening closing the fuse holder with conventional disconnect tools from the pole. PRODUCT FEATURES

Fuse tube The one-half inch inside diameter of the Shinsung cutout’s 100 ampere fuse tube increase internal pressure giving superior and reliable expulsion action. During frequently encountered intermediate fault ranges this diameter also permits higher TRV (transient recovery voltage) values to be tolerated. This small bore design eliminates any concern related to high impedance phase –to-phase faults on ungrounded wye and delta system. The inside liner is constructed with arc-quenching bone fiber. The tube is made of fiberglass which permits the smaller bore and provides a higher bursting strength. It is protected from the weather and environment by a special ultra-violet resistant coating. Also Shinsung fuse tube operates with fuse links from all major suppliers.

Cross arm Brackets Shinsung cutouts packaged one per carton included brackets for cross arm mounting. Brackets are galvanized steel for long lasting service.

Higher Interrupting Capacities By using a copper is shortening rod inside the top of the fuse tube, higher interrupting ratings are obtainable. An arc shortening rod is attached to the cap of some fuse tubes and lowers the fuse link within the fuse tube. This permits a much shorter are, resulting in less are energy, less violence during interruption, and higher interruption capacities. It is necessary to use fuse links with removable button-heads when shortening rods are employed.

Terminals Tin-plated bronze parallel groove type terminals are standard on Shinsung cutouts. They can accommodate aluminum or copper conductor sizes from Dia 4.0mm to Dia 60mm


SPECIFICATION

LAYOUT & DIMENSION

Description SSIE-CS-2510 SSIE-CS-1510

Maximum rated voltage 27kV 15kV

Rated voltage 25.8kV 14.4kV

Rated current 100A 100A

Rated interrupting current 10kA Asym. 10kA Asym.

Leakage Distance to ground 11inch 8½ inch

Lightning impulse withstand voltage 125kV 95kV

Weight 9.5KG 7.5KG

① TIN-PATED BRONZE TERMINAL

② SILVER TO SILVER CONTACTS

③ GALVANIZED STEEL HOOKS FOR LOAD BREAK TOOL

④ FUSE HOLDER

⑤ HIGH STRENGTH FIBERGLASS FUSE TUBE

⑥ SILVER TO SILVER CONTACTS WITH COPPER ALLOY

⑦ CAST COPPER ALLOY LOWER TUBE CASTING

⑧ STAINLESS STEEL FUSE LINK EJECTOR AND SPRING INSURES PROPER TOGGLE ACTION

⑨ COPPER CURRENT PATH

⑩ POCELAIN INSULATOR

⑪ COPPER CURRENT PATH

⑫ COPPER ALLOY HINGE


Business Network Headquarters in Korea

Shinsung Industrial Electic Co., Ltd 190-4 Soohyang-ri, Sunghwan-eup, Cheonan-si, Chungcheongnam-do, Republic of Korea

Tel : +82- 41- 582 -5029 Fax: +82-41- 582 - 8752 email: [email protected] http://www.ssiec.co.kr

China Sales Office

Shinsung Industrial Electric Beijing Office F-502-Gate2-1B Atlantic Place, No. 33 Guang Shun Beida Jie, Chaoyang District, Beijing, China

Phone: +86 10 6464 9482 , Fax: +86 10 6472 8998, Email:[email protected]

Sales Representative in United Kingdom Lucy Switchgear Walton Well Road Oxford, OX2 6EE, United Kingdom

Phone: +44 1865 311 411, Fax: +44 1865 310 504, Email: [email protected]

http://www.lucyswitchgear.com

Technical Licensee in Taiwan Chung-Hsin Electric & Machinery Mfg. Corporation, 25,Wen-Te RD., Lo Shan Tsun, Kwei Shan Hsiang, Taoyian Hsien, Taiwan, R. O. C.

Phone: +886 03 3284170, Fax: +886 03 3284155 http://www.chem.com.tw

Technical Licensee in Tailand Thai Maxwell Electric Co., Ltd 32/7 GP 1 Soi Watthiandad, Petchkasem RD., Banmai, Sampran, Nakpmprathom 73110 Thailand

Phone: +662 429 0033 Fax: +662 429 0014 Email: [email protected]

http://www.thaimaxwell.co.th

Information and specifications in this document are subject to change without prior notice.

shinsung distribution eqpts

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