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Eberry Vef -12 12kv Vcb 3 Pole High Voltage Vacuum Circuit Breaker Electrical Circuit Breakers

China Eberry Vef-12 12kv Vcb 3 Pole High Voltage Vacuum Circuit Breaker Electrical Circuit Breakers, Find details about China Vcb, Vacuum Circuit Breaker from Eberry Vef-12 12kv Vcb 3 Pole High Voltage Vacuum Circuit Breaker Electrical Circuit Breakers

Model NO.
VEF-12
Poles Number
3
Type
Circuit Breaker
Function
Conventional Circuit Breaker
Certification
ISO9001-2000
Rated Voltage
12kv
Rated Frequency
50/60Hz
Rated Current
630A-1250A
Phase Distance
210mm
Trademark
Eberry
Transport Package
Plywood Box
Origin
Yueqing, Zhejiang
Model NO.
VEF-12
Poles Number
3
Type
Circuit Breaker
Function
Conventional Circuit Breaker
Certification
ISO9001-2000
Rated Voltage
12kv
Rated Frequency
50/60Hz
Rated Current
630A-1250A
Phase Distance
210mm
Trademark
Eberry
Transport Package
Plywood Box
Origin
Yueqing, Zhejiang
    
Eberry Vef-12 12kv Vcb 3 Pole High Voltage Vacuum Circuit Breaker Electrical Circuit Breakers
Eberry Vef-12 12kv Vcb 3 Pole High Voltage Vacuum Circuit Breaker Electrical Circuit Breakers
Eberry Vef-12 12kv Vcb 3 Pole High Voltage Vacuum Circuit Breaker Electrical Circuit Breakers
Eberry Vef-12 12kv Vcb 3 Pole High Voltage Vacuum Circuit Breaker Electrical Circuit Breakers
Description:
 
1.VEF(R)-12 is small in size and compact in structure.
2.VEF(R)-12 has stable and reliable performance, long electrical life, strong closing and breaking ability, safe and convenient operation and maintenance.
3.VEF(R)-12 vacuum source chamber is assembled in the insulation tube with our unique process, which makes the switch have the advantages of less maintenance, no pollution, no explosion hazard, low noise and high insulation level. It is suitable for frequent operations and other harsh conditions. Working conditions.
4. The self-developed integral modular spring operating mechanism is equipped with a complete five-proof chain function.
5. The unique and novel design of the combined electric appliance makes the three-phase fuses flat on the upper side of the load switch, and the device is reasonably convenient for maintenance.
6. Load switch and its combination can be used with VS1, VD4, ZN63A and other products in KYN44, GZS1, KYN28 and other centrally-disconnected switchgear, providing designers with more optimized options and configurations.
7. The VEF (R)-12 handcart vacuum circuit breaker and its combination can be operated manually or electrically.
8. When the combination of electrical equipment breaks, there is a fuse hitting the operation machine. The shunt release operation is operated in two ways: 1- When the overload current is interrupted, the relay protection action command shunt release tripping vacuum load switch; 2- When the short circuit is blown, the fuse is blown off and then the mechanical trip system completes the opening. The fuse is only used as backup short circuit protection, which greatly reduces the running cost.
9.VEF(R)-12 vacuum load switch-fuse combination electric appliance can most effectively protect the transformer.
 

 

NOItemUnitTechnical Parameters
1Rated voltageKV12
2Rated frequencyHz50
3Rated insulation levelLightning impulse withstand voltageKV75
1min power frequency withstand voltage42
4Load switchRated currentA630
Rated active load breaking currentA630
Rated closed-loop breaking currentA630
Rated current charging breaking currentA10
4s rated short-time withstand currentKA20
Rated peak withstand currentKA50
Rated short circuit closing currentKA50
Rated ground fault breaking currentA5
Rated cable charging and line charging breaking current under ground fault conditionsA17.3
Mechanical life M2
Electrical life E2
5Load switch-fuse combinationFuse maximum rated currentA≤125
Rated transfer currentA3050A
Melting tube trigger switch opening timeMS35
Rated short-circuit breaking currentKA31.5
Rated short circuit closing currentKA80
Fuse impact output energyJ2-5
6Contact switchMM8.5±1
7Contact overtravelMM3±0.5
8Center distance between polesMM210±1
9Allow contact wear thicknessMM3
10Average opening speedM/S1.2±0.2
11Average closing speedM/S0.6±0.2
12Contact closing bounce timeMS≤3
13Three-phase split and close non-intervalMS≤2
14Opening timeMS20~50
15Main loop resistanceμΩLoad switch ≤70
Combination electric appliance ≤350
16Operating mechanism operating characteristics

 		85%~110% rated voltageReliable closing
65%~120% rated voltageReliable closing
≤30% rated voltageNo scoring gate
 

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