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Hvd32 12Kv 630A Vcb

(1.0)
Supplier From China
Sep-04-19

Vacuum Circuit Breaker VCB HVD32 12KV 630A VCB from Hubei JUCRO Electric
1.General

HVD32 12KV This vacuum circuit breaker VCB is three-phase AC 50Hz, rated voltage 12 kV outdoor high voltage switch equipment. It is mainly used to opening(closing) load current, overload current and short-circuit current. It is suitable to protect or control the city or village electrical power distribution system.

Price and Minimum Quantity

Price: $1434
MOQ: Not Specified
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HVD32 ZW32 This vacuum circuit breaker VCB is three-phase AC 50Hz, rated voltage 12 kV outdoor high voltage switch equipment. It is mainly used to opening(closing) load current, overload current and short-circuit current. It is suitable to protect or control the city or village electrical power distribution system.
2 . Main technical parameter
Rated voltage: 12 kv
1 minute rated power frequency withstand voltage: Phase to Phase, to Ground 42 kv / Fracture 48 kv
Rated current: 630A / 1250A
Rated short circuit breaking current: 12.5KA, 16KA, 20KA / 25KA
Rated short-circuit current (peak): 31.5KA, 40KA, 50KA / 63KA
Rated peak withstand current: 31.5KA, 40KA, 50KA / 63KA
4s rated short time withstand current: 12.5KA, 16KA, 20KA / 25KA
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The vacuum contactor is mainly used in the power system with AC 50Hz and rated voltage 7.2kV, for making or breaking circuit and to make electromagnetic starter with suitable protective device and F-C switchgear.

2. Working condition:
1) Altitude should not be over 1,000m;
2) Ambient temperature: -5~40°C;
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Rated voltage: 7.2 kv
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Rated current: 630A
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Over travel: 2±0.2 mm
Pressure: >85N
Main circuit power frequency withstand voltage: 32000 v
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Working condition:
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Over travel: 2±0.2 mm
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The interrupter adoption porcelain and ceramics makes to insulate the outer shell. Contact is WCCu metal alloy material advanced technique of adoption Including bulk small. Breaking the abiliting strong the life span is long, maintenanle is simple ,no explosion dangerous, no contaminate and the noise is low . The pack vacuum contactor can operate the ebery kind of electric appliances equipments, and fuse match f-c cabinet

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Rated breaking current: 5.04KA
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Rated short-time withstand current: 6.3KA
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Mechanical requiements of vacuum circuit breaker
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Rated current: 1250A
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Rated lightning impulse withstand voltage: 85 KV
Rated short circuit breaking current: 31.5KA
Rated short circuit making current(peak value): 80KA
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Rated short time withstand current: 31.5KA
Rated withstand current(peak value): 80KA
Rated duration of short circuit: 4 s
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Force required to hold contacts opening at full stroke: 190±50 N
Circuit resistance at lowest rated contacts force: =20µO
Storage life: 20 years
Limiting abrasion of contacts: 3 mm

Mechanical requiements of vacuum circuit breaker
Clearance between opening contacts: 11±1 mm
Average opening speed(Contacts closing position~75% contacts opening distance): 1.1±0.2 m/s
Average closing speed(30% contacts opening distance~contacts closing position): 0.6±0.2 m/s
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Contacts bouncing duration at closing operation: =2 ms
Contacts re-bouncing clearance at opening operation: =2 mm
Synchronism of three phases: =1 ms
* It Needs additional insultating protection.
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Rated current: 1600A
Rated power frequency withstand voltage: 42 KV
Rated lightning impulse withstand voltage: 75 KV
Rated short circuit breaking current: 31.5KA
Rated short circuit making current(peak value): 80KA
Breaking operations under rated short circuit breaking current: 30 times
Rated short time withstand current: 31.5KA
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Rated duration of short circuit: 4 s
Mechanical life: 20,000 times
Closing force due to bellows and atmosphere: 120±50 N
Force required to hold contacts opening at full stroke: 190±50 N
Circuit resistance at lowest rated contacts force: =20µO
Storage life: 20 years
Limiting abrasion of contacts: 3 mm

Mechanical requiements of vacuum circuit breaker
Clearance between opening contacts: 11±1 mm
Average opening speed(Contacts closing position~75% contacts opening distance): 1.1±0.2 m/s
Average closing speed(30% contacts opening distance~contacts closing position): 0.6±0.2 m/s
Rated contacts pressure: 3150±200 N
Contacts bouncing duration at closing operation: =2 ms
Contacts re-bouncing clearance at opening operation: =2 mm
Synchronism of three phases: =1 ms
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