Fuji Electric DC High-speed Vacuum Circuit Breaker
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.
energy-saving featuresLow loss and low energy operation help to save energy. The dry capacitors used are incombustible and eco-friendly.
IM体育官网APPlarge 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.
IM体育官网APPhigh operating reliabilityHigh operating reliability is achieved through redundant configuration of critical components, high noise-resistant design, as well as clarification of periodic replacement parts.
Internal structure of device
|Device name||DC high speed vacuum circuit breaker|
|Applicable 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)|
|Circuit breaker body type||HX5001X- Mf-DA( : 20, 30, 40)||HX10001X- Mf-DA( : 20, 30, 40)|
|Rated voltage||DC 1500 V||DC 750 V||DC 1500 V||DC 750 V|
|Rated voltage||4000 V or less||2500 V or less||4000 V or less||2500 V or less|
|Rated 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 less|
|Operating duty cycle||O - 10 sec - CO|
|Rated short-time withstand current||1 sec, 75 kA|
|Current 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 kA|
|Final selection rate||50% (Configurable to use or exclude)|
|Closing operation method||Electric-spring method, 1.7 A, 2 sec|
|Contact opening method||Electromagnetic repulsion drive system|
|Commutation method||Capacitor commutation method|
|Arc suppression method||Energy absorption method using zinc oxide elements|
|Mechanical opening and closing||10,000 times|
|Short-circuit current interruption||100 times|
|Main circuit||5500 V AC, 1 min; lightning impulse 20 kV|
|Control circuit||1500 V AC, 1 min; lightning impulse 4.5 kV|
|Insulation distance||Air gap 30 mm, Creepage distance 50 mm or more|
|Rated operation and control voltage||DC 100 V, DC 110 V|
|Rated auxiliary power voltage||Single-phase 210 V AC|
|Contact configuration||3a+3b (External use)|
|Switching capacity||5 A (DC 100 V, DC 110 V)|
IM体育官网APP*: bi-directional overcurrent detection type can also be manufactured.
circuit breaker main body