type: adr141a ashida numerical oc/ ef protection relay

Type: ADR141A

ADR241A (Communicable)ASHIDA Numerical OC/ EF Protection Relay

Ref.: ADR141A/ADR241A_DOIssue: 03 22.12.15

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ASHIDA ELECTRONICS PVT LTD. ASHIDA HOUSE, Plot No. A-308, Road No. 21, Wagle Industrial Estate,Thane (W)-400 604. INDIA. E-mail: [email protected] Web: www.ashidaelectronics.com आिशदा

Features:

• 4 Element (3 Phase + EF) over current IDMT

with instant trip.

• Back - lit LCD display for settings.

• Display of Load current in terms of primary.

• Selection of Curve: Seven selectable curves

Normal Inverse1 (C1), Normal Inverse2 (C2),

Very Inverse (C3), Extremely Inverse (C4),

Extremely Inverse (C4A) EE Equivalent, Long

Time Inverse (C5) & Definite Time (C6).

• Separate curve selection for phase and EF.

• Design using DSP technology.

• Latching of fault current up to last 5 faults with

time stamping.

• Password protection for setting.

• Site selectable CT secondary

• Relay can be made either IDMT or Define time

• Programmable operating time in instantaneous

element

• Cold Load pickup for prolong inrush

current.

• In Build Breaker Fail & Trip Circuit

Supervision Function

• Programmable Annunciation Contact

• USB (at front) and RS422/RS485 (at rear)

Communication Port for remote SCADA

(only for ADR241A i.e. communicable

Relay).

General: The ADR241A is member of Ashida Numerical

Relay family (Aditya Series) design to meet

demand of low and medium switchgear control.

The ADR241A is a 3 OC and 1 EF relay with

Instantaneous high set and programmable output

to simplify feeder protection wiring. The ADR241A

continuously monitors all phases and earth current,

through CT connections. The high-speed micro-

controller samples this current through a 12-bit

A/D converter. The micro-controller performs

powerful Numerical Algorithms to find out RMS

of current signal, and then this value is use for

protection and metering function. All measurement

Ref.:ADR141A/ ADR241A _DOIssue: 03 22.12.2015

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Type: ADR141A


is tuned to fundamental frequency. Each input

current is also displayed on 16 x 2 LCD display for

metering.

The Relay is having main three functions 1)

Protection 2) Self-Supervision 3) Measurement

1. Protection Functions: The ADR241A give maximum benefit/cost ratio.

The ADR241A give all the advantage of numerical

relay at affordable cost. Following is summery of

different protection functions provided by relay.

ANSI IEC Protection Functions 50 I >> Instantaneous Over current

Protection (OC-Inst.) 50N IE>> Instantaneous Earth Fault

Protection (EF-Inst.) 50,51 I>t, Ip Time Over current Protection

(Phase) (OC-IDMT.) 50N, 51N

IE>t, IEP

Time Over current Protection (Earth) (EF-IDMT.)

1.1 Over current / EF protection: The relay has 4 sensing element 3 OC and 1

EF. The tripping current can be set from 5% to

250% for phase and 5% to 250% for Earth fault

in steps of 1% by Keys provided on front panel.

The unit has got selection of IDMT characteristic

of international IEC standard Very inverse /

Extremely Inverse / Long Inverse and Standard

inverse (both 3.0 sec and 1.3sec at 10 times).

The Time Multiplier Setting (TMS) for the IDMT

delay multiplication is from x0.01 to x1.5 which

can be adjusted in steps of x0.005. Separate

operating curve can be programmed for phase

and EF.

The each stage thresholds for phase (earth) over

current can be selected with an Inverse Definite

Minimum Time (IDMT) characteristic. The Time

Delay is calculated with a mathematical formula

Curve Type

Description a b

C1 Standard Inverse_1 0.14 0.02 C2 Standard Inverse_2 0.06 0.02 C3 Very Inverse 13.5 1 C4 Extremely inverse 80 2 C5 Long Time Inverse 120 1 C6 Define Time - -


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Type: ADR141A


The instantaneous tripping function is having range

of 50% - 3000% for phase and 50% - 3000% for

EF and can be set in steps of 1%.

The high speeds CPU continuously monitor the all

four current inputs and compare with IDMT as well

as instantaneous setting. If anyone current is

above instantaneous setting the relay provides

immediate trip command bypassing IDMT delay. If

is input current is less than instantaneous setting

but more than IDMT setting, CPU calculate IDMT

delay as per selected IDMT characteristic multiply

it with TMS setting and provide trip command if

fault is persist even after this time delay.

All the settings are password protected to prevent

unauthorised change.

1.2 Extra Alarm Contact: Any Protection panel required extra contacts for

provide visual ALARM and ANNUNCIATION

indication for operator. Also some status contacts

for SCADA or remote indications. Usually separate

electromechanical relay used for contact

multiplication of protection relay contacts. This

added extra wiring and extra hardware. The

ADR241A provide separate programmable ALARM

contact for such application. Maximum 4 nos. of

extra contacts can be provided. These contacts

can be programmed as follows:

ANN. TYPE 1

ANN. TYPE 2

ANN. TYPE 3

ANN. TYPE 4

RELAY 1 OC1 OC HF HF COM. ALARM

RELAY 2 OC2 OC IDMT IDMT PROTH.

RELAY 3 OC3 EF HF PHASE PHASE

RELAY 4 EF EF IDMT EF EF

2. Supervision Function:

2.1 Self-supervision:

The continuously keeping track on its internal

hardware and the movement it detect any failure of

any component, it give message on LCD display,

This feature is very useful to give pre information

to avoid any mall - operation. In such situation it

uses some default setting and remains in

protection mode.

3. Measurement Function: In normal condition this display shows all settings.

Via keyboard the display can be program to show

the actual current flowing through the relay. If

current excesses set value the relay gives trip


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Type: ADR141A


command. The type of fault is displayed on LCD

display. During the fault condition the relay

measure the fault current and store in non-volatile memory. The fault current can be read via keyboard on LCD display Last 5 fault values along with tripping counter can be view via key-board. All settings are save in electrically

erasable read only memory and remain.

4. Breaker Fail Function (BF or LBB) Normally after tripping current should be come

Zero within 100 – 200ms time depend upon type of

fault and breaker mechanism. After Fault Relay

start one internal timer (settable from 0.05s to 0.8

s) If fault is not cleared during this time then relay

declare as Breaker fail (LBB function)

5. Cold Load Pickup Relay also equipped with cold load pick feature.

During switching of load relay sense closing of CB

by auxiliary contact of CB (through dedicated

Status input marked as CB NO). Once CB closing

is detected relay automatically switch settings to

cold load setting (which independently adjustable)

for pre define time (adjustable). After this cold load

time relay switch back to original setting

automatically and avoid wrong operation of relay.

6. Trip circuit Supervision & Status:- The ADR241A is having 2 separate digital opto-

coupler status input which can be used to

continuously monitor continuity of trip-circuit. The

general scheme is as shown in fig.

Relay monitor Trip coil continuity through CB NO

during close condition and through CB NC during

Trip condition. If any discontinuity observed it

generate Alarm signal. One changeover contact is

provided for ALRAM and will operates when S3

and S4 both active and both inactive. i.e CB NO as

well as CB NC are both close or open.

Along with this two general purpose Status inputs

S1 and S2 are given for SCADA application

1

6 2

B+

B-

TC

CB NO

CB NC

Fig. Trip Circuit Logic

1

6 2

To Relay CPU

To Relay CPU

TCCOM

S4

S3

1

6 2

B+

B-

TC

CB NO

CB NC

1

6 2

To Relay CPU

To Relay CPU1

6 2

B+


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Type: ADR141A


7. Ordering Information:

The relay is available with nos. of different option. The option is specified by model no. It is user responsibility to specify correct model no. while ordering.

While Order ing Specify the fol lowing Information for ADR241A Relay

Ordering information:

ADR241A - AM - XXX - XX - XX - XX - XX - XX - XX

Available Models:

• ADR141A – AM–110–01–04–28–03–00–00 (Draw out cabinet)

• ADR241A – AM–110–01–04–28–03–00–02 . (Draw out cabinet)

XX = Auxiliary Supply. 28 24 - 230 VAC/DC (± 20%)

XX = CT. 03 1/5 Amp.

XX = Communication Protocol

00 Not Applicable 02 IEC60870-5-103

XXX = Sub Type 110 3OC + EF + HF Relay

OC:5 - 250 % in steps of 1%, OC HF:50 – 3000 % in steps of 50%, OC TMS: X0.01 – X1.5 in steps of X0.005 EF :5 - 250 % in steps of 1%, EF HF:50 – 3000 % In steps of 50% , EF TMS: X0.01 – X1.5 In steps of X0.005 Contacts: 2NO For trip, 4 NO for Ann., 1NO for BF, 1C/O for TCS. Status: 2 nos. Dedicated for TCS and 2 Nos. for Spare. With Cold Load function.

XX = Cabinet Size 01 CSA (138

x138mm )

XX = Cabinet Type 04 Draw out

XX = PT. 00 Not Applicable

D e f i n i t i o n o f M o d e l N o f o r A D R 2 4 1 A R e l a y

A M X X X – X X – X X – X X – X X – X X - X X


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Type: ADR141A


Technical Specifications:

General specifications Sr. No. Specification Particulars

I. Current Input : Suitable for 1 Amp / 5 Amp site selectable. II. Aux. Supply : 24 – 230 V AC/DC (± 20%).

III. VA burden on CTs : Less than 0.2 VA. IV. VA burden on Aux. : Less than 10 Watts V. Pick up : Within 1.1 times of set value

VI. Reset Value : 95% to 90% of pick up. VII. Operating Time : 5 selectable IDMT curve C1 to C5 and define time C6

: Instantaneous Time < 50ms on 2 times current of setting. VIII. Output Contact : 2 NO Trip duty contact for Alarm and Trip, 4 NO Trip Duty contacts

(Programmable) for Annunciation, 1 NO for Breaker Failure, 1 C/O for Trip Circuit Supervision

IX. Contact Rating : Continuous: 5A : Make & carry for 0.5 sec : 30A : Make carry for 3 sec : 15A

X. Opto isolated input : 2Nos. Dedicated for TCS and 2nos. general Rated for 230Vac XI. Continuous carrying capacity : 2 x of rated for CT.

XII. Thermal With stand for CT : 40 x of rated CT for 3.0 sec. XIII. Operating temperature range : -10 ºC to +65 ºC XIV. Relative Humidity : Humidity (RH) 95% maximum XV. Storage temperature range : -20 ºC to +80 ºC.

Relay Settings XVI. Setting Range

: Password 000 – 099 in steps of 001

: New Password 000 – 099 in steps of 001

: Unit ID 001 – 255 in steps of 001

: USB Parity None / Even / Odd

: IP> 005 – 250 % in steps of 1%

: IP TMS X0.010 – 1.500 in steps of x0.005

: IP>> 0050 – 3000 % in steps of 1%

: IE> 005 – 250 % in steps of 1%

: IE TMS X0.010 – 1.500 in steps of x0.005

: IE>> 0050 – 3000 % in steps of 1%

: IP> Curve C1 – C6

: IE> Curve C1 – C6

: IP> C6 Time 00.0 – 99.9s in steps of 0.1s

: IE> C6 Time 00.0 – 99.9s in steps of 0.1s

: IP>> Delay 00.00 – 10.00s in steps of 0.01s

आिशदा

Type: ADR141A


Ref.:ADR141A/ ADR241A_DOIssue: 03 22.12.2015

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ASHIDA ELECTRONICS PVT LTD. ASHIDA HOUSE, Plot No. A-308, Road No. 21, Wagle Industrial Estate,Thane (W)-400 604. INDIA. E-mail: [email protected] Web: www.ashidaelectronics.com

: IE>> Delay 00.00 – 10.00s in steps of 0.01s

: BF Delay 050 – 800ms in steps of 50ms

: CT Secondary 1A / 5A

: CT Primary 0010 – 5000A in steps of 1A

: Test Block Yes / No

: Trip Circuit Yes / No

: Ann. Type 1 – 4 in steps of 1

: Ann. Contacts SR / HR

: Trip Contacts SR / HR

: BF Contacts SR / HR

: Com. Port RS232 / RS485

: Ser. Parity None / Even / Odd

: Baud Rate 2400 – 19200

Cold Load Settings XVII. : Password 000 – 099 in steps of 001

: Cold Load Enable / Disable : Cold Load Timer 0.01 – 10 sec in steps of 0.1s

: CL IP> 005 – 250 % in steps of 1%

: CL IP TMS X0.010 – 1.500 in steps of x0.005

: CL IP>> 0050 – 3000 % in steps of 1%

: CL IE> 005 – 250 % in steps of 1%

: CL IE TMS X0.010 – 1.500 in steps of x0.005

: CL IE>> 0050 – 3000 % in steps of 1%

: CL IP> Curve C1 – C6

: CL IE> Curve C1 – C6

: CL IP> C6 Time 00.0 – 99.9s in steps of 0.1s

: CL IE> C6 Time 00.0 – 99.9s in steps of 0.1s

: CL IP>> Delay 00.00 – 10.00s in steps of 0.01s

: CL IE>> Delay 00.00 – 10.00s in steps of 0.01s

Operational Indicators (Flags) ON / Error : Green LED indicates Relay OK

: Red LED indicates Problem in relay Hardware. PKP / HF : Green LED indicates relay Pickup.

: Red LED indicates relay operated at HF. OC Fault / EF Fault

: Green LED indicates the relay tripped by OC, Hand Reset (HR) Type : Red LED indicates the relay tripped by EF, Hand Reset (HR) Type

TRIP / BF : Green LED Indicates that Trip pulse is being executed. SR type when TRIP contact selected as SR and HR type when TRIP contact selected as HR. When BYPASS P.B. is pressed, actual trip is not executed.

: Red LED indicates BF operated. SR type when BF contact selected as SR and HR type when BF contact selected as HR.

आिशदा

Type: ADR141A



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Drawing References I. : For Cabinet Type - CSA-150 (DO) –MAC01926

: For Electrical Connection - APR06828 : For Electrical Connection - APR06829

Mechanical Specifications I. Net Weight : Approx. 2.5 Kg.

II. Enclosure Protection : EN 60529:2000 For Front : IP52 For Rear : IP20

Conformance to Standards:

Sr. No. Specification Particulars I. High Voltage Test

: IEC 60255-5. : At 2.5kV 50Hz between all terminal connected together and Earth for

1 minutes II. Impulse Voltage Test

: IEC60255-5. : Test voltage: 5KV (peak) 1.2 / 50us, : Energy : 0.5 J, : Polarity : + ve and – Ve : Nos. of impulses : 3 positive and 3 negative impulse : Duration between Impulses : 5 sec.

III. High Frequency test : IEC 60255-22-1, : Frequency : 1MHz Damped Oscillatory : Longitudinal : 5 KV (peak) : Duration: sec duration 2 sec. Between input current Terminal

IV. Electro static Discharge : IEC 60255-22-2 Class III and IEC 61000-4-2 class III. : Contact discharge : 6kV, : Air discharge: 8KV : Polarity: both +ve and –Ve polarities.

V. Fast transient interference/bursts

: IEC 60255-22-4 and IEC 61000-4-4, class III : Amplitude 2Kv, pulse shape 5/50ns. : Burst duration = 15ms. : Repetition rate 300ms;

: Both polarities; Ri = 50Ω; duration 1 min. VI. Vibration Test : IEC 60255-21-1 class 1

: Frequency Range = 10Hz – 150Hz , : Acceleration. = 1gn (9.8 m/s2) : Sweep rate 1 octave/min; 20 cycle in 3 orthogonal axis.

VII. Shock Test : IEC 60255-21-2 class 1 : Acceleration. = 15gn (15 x 9.8 m/s2)

आिशदा

Type: ADR141A



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: Half sine pulse width 11ms Number of shocks per axis 3 per direction.

VIII. Serge Immunity Test : IEC 60255-22-5 / BS EN 61000-4-5 : 1995 : Differential Mode = 2kV : Common Mode = 4kV : 1.2/50uS , 5 surges of each polarity

IX. Conducted Emission Test : BS EN 55011 : 1998 : Frequency 0.15MHz – 30MHz

X. Radiated Emission Test : BS EN 55011 : 1998 : Frequency 30MHz – 1GHz

XI. Power Frequency Magnetic Test

: BS EN 61000-4-8 : 1994. : Freq. 50 Hz, Field 100 A/m for 1 min. 1000 A/m for 3 sec.,

XII. Conducted Disturbance induced by Radio Frequency field

: IEC 60255-22-6 / BS EN 61000-4-6: 1996. : Freq. 150kHz – 80MHz, Amplitude 10 V, Modulation 80% AM @ 1KHz

XIII. Radiated Electromagnetic Field Disturbance Test

: IEC 60255-22-3 / BS EN 61000-4-3 : 1995 : Freq. 80 MHz–1000 MHz, Amplitude 10V/m, Modulation 80% AM @ 1KHz

• Datasheet Change Log for ADR241A_DO

Issue No. Date Description /Changes 01 10.01.2014 First Prototype specification 02 20.11.2015 Compliance to Standard modified 03 22.12.2015 Electrical Connection Drawings Modified

type: adr141a ashida numerical oc/ ef protection relay

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