for electric railway substations fuji electric dc high
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23B1-E-0007
DC 1,500 V,750 V/2,000 to 4,000 A
Fuji Electric DC High-speed Vacuum Circuit Breaker
For Electric Railway Substations
D3039-0965_23B1-E-0007.indd 1 13/06/20 10:14
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Detectioncontrol
Opencommand
Overcurrent
Detectioncontrol
Close command
Detectioncontrol
Detectioncontrol
Detectioncontrol
Fuji Electric’s DC high-speed vacuum circuit breakers promise to improve the reliability and safety, and to reduce life cycle costs of electric railway substations.
■ Substation maintenance can be greatly streamlinedWith arcless circuit interruption, dramatic reductions in maintenance can be planned, and other maintenance-saving equipment and maintenance cycles can be synchronized.
■ Space-saving design reduces construction costs and makes renewals easy
Volume is only 50 % of that required by conventional high-speed air circuit breaker panels (when compared with our company's products).
■ Energy-saving featuresLow loss and low energy operation help to save energy. The dry capacitors used are incombustible and eco-friendly.
■ Large current interruption performanceThe high breaking capacity and faster opening time of the vacuum valve have achieved a 100 kA circuit interruption.
■ Total area interruption performanceFrom large to small current, all current can be reliably interrupted.Large load current can also be securely turned on.
■ High operating reliabilityHigh operating reliability is achieved through redundant configuration of critical components, high noise-resistant design, as well as clarification of periodic replacement parts.
■ Ideal for outdoor installationsThis equipment can significantly reduce the size of substation buildings, and is economical.
■ No on-site overhaulsEach unit can be taken back to the factory to be overhauled on an individual unit basis. This makes our quality perfect.
■ Safe and easy handlingThe live part is not exposed, and is equipped with a protective shutter and secure interlock mechanisms.The easy-to-understand functional unit structure makes to prevent human error during operation and inspections.
(1) Overcurrent detectionWhen overcurrent is detected, an opening command is sent to the main vacuum valve.
Current interruption principle
Basic configuration
Device features
(2) OpeningAfter the main vacuum valve is opened, the main osillation switch is turned on.
(3) Main osillation capacitor discharge
Capacitor discharge current is superimposed on the main circuit current, making the current zero.
(4) Main vacuum valve turns offThe current of the main vacuum valve is turned off, the current is diverted to the main osillation circuit, and the voltage between the electrodes increases.
Implementation benefits
(5) Arc suppression device discharges, completing the circuit interruption
The voltage between the electrodes increases and the suppression device operates to complete the interruption and absorb the circuit energy.
Repulsion drive unit
VCB
Detection control unit
Main osillation control unit
MonitoringTrigger
Trigger
Charge Monitoring
ChargeRSw
HCT
External signal(DC 100 V)Analog output for measurement
DC 100 V
RSw
DC 1500 V MRCMVI
TC
NLR
SOL SOC
MOL MOC
FMS
TSw
SVI
MRC
※※
MRC : Magnetic repulsion coilRSw : Repulsion drive switchMOC : Main osillation capacitorMOL : Main osillation reactorSOC : Sub osillation capacitorSOL : Sub osillation reactor
MVI : Main vacuum interrupterSVI : Sub vacuum interrupterFMS : Fast making switchNLR : Non linear resistorHCT : Hall current transfomerTC : Tripping coilTSw : Tripping switch
Inverter(Regular
use)
DC 100 V
AC 210 V(Back-up)
The Key Points in the Innovation of Railway Substation Equipment are Arcless Circuit Interruption and Protecting the Environment!
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Internal structure of device
Device specifications
Circuit breaker main body
Disconnector
Actuator
Fault detection sensor (∆I)
Main osillation control unit
Lightning arrester
Main bus
Circuit breaker body
MOCZ bus
Operation panel
Repulsion drive unit
Relay unit
Power distribution unit
Detection control unit
NLR700
2300
50
2000
HCT
[Unit: mm]
Item DescriptionDevice name DC high speed vacuum circuit breakerApplicable standards JIS E2501-1 (2010) "Railway applications - Fixed installations - DC
switchgear - Part 1: General"JIS E2501-2 (2010) "Railway applications - Fixed installations - DC switchgear - Part 2: DC circuit-breakers"
Structure Indoor-use (outdoor-use) cubicle type switchgear (JEM1425-CW) (draw-out type, main circuit with shutter)
Protection class IP2XCircuit breaker body type HX5001X- Mf-DA( : 20, 30, 40) HX10001X- Mf-DA( : 20, 30, 40)Device type VDC215-P VDC208-P VDC215-T VDC208-TRated voltage DC 1500 V DC 750 V DC 1500 V DC 750 VMaximum arc voltage 4000 V or less 2500 V or less 4000 V or less 2500 V or lessRated breaking capacity 50 kA (at 3×106 A/s) 100 kA (at 10×106 A/s)Maximum cut-off current 25 kA or less 36 kA or lessRated current 2000A/3000A/4000AOperating duty cycle O - 10 sec - CORated short-time withstand current 1 sec, 75 kACurrent detection method Forward overcurrent detection (built-in reverse current relay function) *Setting current scale 4 kA to 12 kA, 2 kA to 6 kA, 1 kA to 3 kAFinal selection rate 50% (Configurable to use or exclude)Operation methods
Closing operation method
Electric-spring method, 1.7 A, 2 sec
Contact opening metho
Electromagnetic repulsion drive system
Commutation method Capacitor commutation methodArc suppression method
Energy absorption method using zinc oxide elements
Guaranteed number of operations
Mechanical opening and closing
10,000 times
Short-circuit current interruption
100 times
Withstand voltage
Main circuit 5500 V AC, 1 min; lightning impulse 20 kVControl circuit 1500 V AC, 1 min; lightning impulse 4.5 kV
Insulation distance Air gap 30 mm, Creepage distance 50 mm or moreRated operation and control voltage DC 100 V, DC 110 VRated auxiliary power voltage Single-phase 210 V ACAuxiliary switches
Contact configuration 3a+3b (External use)Switching capacity 5 A (DC 100 V, DC 110 V)
*: Bi-directional overcurrent detection type can also be manufactured.
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Gate City Ohsaki, East Tower, 11-2, Osaki 1-chome, Shinagawa-ku, Tokyo 141-0032, JapanPhone : (03)5435-7111
Internet address : http://www.fujielectric.co.jpInformation in this catalog is subject to change without notice.
Printed on recycled paper
2013-6(F2013/F2013)YU-H/CTP3FOLS Printed in Japan
54P1
54F1
HCT
△ICT
HCT
△ICT
HCT
△ICT
HCT
△ICT
HCT
△ICT
54F2 54F3 54F4 54FZ
54P2
Comparison of DC circuit breakers
Comparison of installation space [mm]
Single-line diagram
AccessoriesPlease provide the following information when contacting us.1. Rated voltage V2. Rated current A3. Rated breaking capacity kA4. Maximum current scale kA5. Single-line diagram6. Usage conditions
The following accessories are available.■ Standard accessories • Current scale tester (The test is very easy to perform.) • Cable for current scale testing • Special VCB tool■ Options • VCB draw-out rails or inspection platforms • Indicator for monitoring circuit breaker opening and closing
(Maintenance can be planned by monitoring opening and closing times and pre-loaded spring time.)
Your inquiry form
Vacuum circuit breaker panelRatio (our company's products)
Air circuit breaker panelFootprint Volume 16.8 m2 47.0 m3
9.8 m2 22.5 m3
60 % 50 %
2800
2300 28
00
2000 4900
6000
Air circuit breaker panel
Vacuum circuit breaker panel
54P1 54P2 54F1 54F2 54F3 54F4 54FZ
Item of comparison High-speed vacuum circuit breaker High-speed air circuit breakerApplicable standard JIS E2501-1 (2010) "Railway applications - Fixed installations - DC switchgear - Part 1: General"
JIS E2501-2 (2010) "Railway applications - Fixed installations - DC switchgear - Part 2: DC circuit-breakers"Principle of current interruption The opening of the vacuum interruter diverts the current
to the non linear resistor which generates a counter voltage higher than the power supply voltage to turn off the current.When a large current is interrupted, the only sound generated is the sound of the equipment.
Current is transferred to the arc chute by electromagnetic force where it is interrupted when the arc chute generates a counter voltage that is higher than the power supply voltage.Interruption of large current is accompanied by explosive sounds and flashing.
Short-circuit current interruption time 6 ms (Approx.) 20 ms (Approx.)Maintenance and inspection The inspection cycle can be significantly extend
because there is little mechanical wear. Cleaning is not required because of the enclosed structure.
Frequent inspections and mechanical adjustments are required because the contacts and arc chute are subject to wear.
Inspection cycle (user inspection) 3 years 0.5 yearsSafety The protective structure (with shutter) provides a
high level of safety on par with AC circuit breakers. Discharge operation and confirmation of the capacitor are easy to perform.
The live part is exposed, and arcing requires caution.
Current scale range (upper and lower limit ratio) 3 times 2 times or lessMain circuit loss (at 3000 A) * 1 0.6 kW (Approx.) 1 kW (Approx.)Control power input (DC 100 V) *2 0.3 A (Approx.) 1 A (Approx.)Operating current After closing : Spring-loaded current flows.
After opening : In a few seconds the capacitor charging current flows.
On closing: large electromagnetic operating current flows.
* 1: GTO Circuit breaker is approx. 5 kW. * 2: GTO Circuit breaker is approx. 3 A.
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