Fuji Electric DC High-speed Vacuum Circuit Breaker
Fuji Electric DC High-speed Vacuum Circuit Breaker
Device features
Substation maintenance can be greatly streamlined
With arcless circuit interruption, dramatic reductions in maintenance can be planned, and other maintenance-saving equipment and maintenance cycles can be synchronized.Energy-saving features
Low loss and low energy operation help to save energy. The dry capacitors used are incombustible and eco-friendly.Large current interruption performance
The high breaking capacity and faster opening time of the vacuum valve have achieved a 100 kA circuit interruption.Total area interruption performance
From large to small current, all current can be reliably interrupted. Large load current can also be securely turned on.High operating reliability
High 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 specifications
| Item | Description | ||||
|---|---|---|---|---|---|
| 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" |
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| Structure | Indoor-use (outdoor-use) cubicle type switchgear (JEM1425-CW) (draw-out type, main circuit with shutter) | ||||
| Protection class | IP2X | ||||
| Circuit breaker body type | HX5001X- Mf-DA( : 20, 30, 40) | HX10001X- Mf-DA( : 20, 30, 40) | |||
| Device type | VDC215-P | VDC208-P | VDC215-T | VDC208-T | |
| 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 | |||
| Rated current | 2000A/3000A/4000A | ||||
| 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) | ||||
| Operation methods | 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 | ||||
| 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 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 | ||||
| Auxiliary 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.
Circuit breaker main body
