Hengfengyou zw20-12 / 630-25KA outdoor column High Voltage Vacuum
Circuit
Breaker 12KV manual circuit breaker
ZW20A-12 Type of outdoor high voltage vacuum circuit breaker for a
period of 12KV, rated voltage
of the three-phase AC 50HZ outdoor distribution equipment. It
adopts vacuum arcing and SF6 gas
as insulating medium is ZW20-12 column type vacuum circuit breaker
on the modified products.
The product suitable for substation industrial and mining
establishments rural power network and
occasions with frequent operation to protect and control. ZW20A
outdoor AC high voltage vacuum
circuit breaker is mainly used to break and close load current,
over-load current and short-circuit
current in outdoor 36kv three-phase alternating current 50Hz power
system, also suitable for occasion
with frequent operations.
Service conditions:
1. Ambient Temperature: -40℃ ~ +40℃
2. Altitude: ≤2000m
3. Wind speed: ≤34m/s
4. Earthquake intensity: ≤8
5. Relative humidity: daily≤95%, month≤90%
6. Installation site: Not including inflammable, explosive,
chemical corrosion.
| Item | Unit | Numeric | |
| NominalVoltage | KV | 12 | |
| RatedFrequency | HZ | 50 | |
| RatedCurrent | A | 630 | |
| RatedShort-circuitBreakingCurrent | KA | 20 |
| DynamicStabilityratedcurrent | KA | 50 | |
| RMS/Ratedthermalstabilization | KAIS | 20/4 |
| Mechanismlife | Times | 10000 | |
| Ratedshort-circuitclosingbreakingNumber | Times | 30 |
| Ratedoperatingsequence | | 0-0.35-C0-1805-CO 10000 | |
| Ratedbreakingcurrentnumber | Tmes |
| Ratedshort-circuitcloseopencurrent | KA | 50 | | |
| Ratedinsulationlevel | KV | | ShortPower- frequencywithstand | Thunder shocking |
| PE | 42/34 | 75 |
| PP | 42/34 | 75 |
| Fracture | 48/34 | 35 |
| Assist | | |
| SF6ratedpressure(20spendpressure) | MPa | 0.01 | | |
| Ratedshort-circuitclosingbreakingNumber | | 30 | | |
| Ratedshort-circuitcut-offcurrent'sDCcomponent | %dc | 513 | |
Specification:
Snapped vacuum interrupter,air insulated,with electric spring
operating mechanism,allowing
breaking the ability strong,high frequency short-circuit
breaking,no fire and explosion hazards,
easy operation is an excellent,practical,strong product.
The product structure using three-phase common tank type,casing
into the outlet,cabinets dry
air,electric spring mechanism is disposed on the side of the
box,can be used under relatively
harsh environmental conditions.
This product is vacuum interrupter ceramic shell,goblet
longitudinal magnetic field electrode
structure,copper-chromium contact materials,with excellent breaking
and closing short-circuit
current capability.
The product is small,light weight,becautiful apperance.vacuum
interrupter ans insulation support
sleeve design compact,pole qualifying conductive silicone rubber
outer note,can adapt to harsh
weather confitions and dirty environmrnts.
About us
Qingdao Hengfengyou Electrical Engineering Co. , Ltd. is one of the
large-scale electric complete
sets of manufacturers in China, specializing in oil-immersed
transformers, dry-type transformers,
high-voltage Cabinets, low-voltage cabinets and substation
manufacturing specialized electrical
enterprises. The company is located in the beautiful coastal city
of china-qingdao. The company
has a registered capital of 10 million yuan, 20 senior technical
personnel, more than 500 employees,
and a sound sales and service system, annual output value of US $1
billion, the products sell well
at home and abroad.
