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Henan Senyuan Electric Co., Ltd.Free·1YRS
ZW8-12 Outdoor High Voltage Vacuum Circuit Breaker Series
NegotiableUpdate on October 14
- Model
- Nature of the Manufacturer
- Other
- Product Category
- Medium Voltage Switch Element
- Place of Origin
- City, Province
Overview
ZW8-12 Outdoor High Voltage Vacuum Circuit Breaker Series
Product Details
Product Introduction
ZW8-12 outdoor high voltage vacuum circuit breaker series are three-phase AC outdoor equipment with the rated voltage of 12kV and the rated frequency of 50Hz. They are mainly used to open and close load current, over current and short-circuit current in 12kV system of rural and urban grid as well as other similar places.
Product Features
Environment Temperature: +40℃~ — 25℃
Altitude: not higher than 1000m
Relative Air Temperature: daily average not higher than 95% and monthly average not higher than 90%
Wind Pressure: not higher than 700Pa
Seismic intensity not higher than 8
Installed in places that are free from fire, explosion, severe pollution, chemical corrosion and drastic vibration.
Technical Parameters
Name | Unit | Parameter | |||
Rated Voltage | kV | 12 | |||
Rated Frequency | Hz | 50 | |||
Rated Current | A | 630 | |||
Rated Short-circuit Breaking Current | kA | 6.3 | 12.5 | 20 | |
Rated Short-circuit Making Current (Peak Value) | 16 | 31.5 | 50 | ||
Rated Peak Withstａnd Current (Peak Value) | 16 | 31.5 | 50 | ||
Rated Short-time Withstａnd Current | 6.3 | 12.5 | 20 | ||
Rated Insulation Level | Power Frequency Withstａnd Voltage (Dry Type) | kV | 42 | ||
Lightning Impulse Withstａnd Voltage (Peak Value) | 75 | ||||
Rated Short-circuit Breaking Current Breaking Times | Time | 30 | |||
Mechanical Life | 10000 | ||||
Rated Operative Sequence | 分-0.3 s-合分-180s-合分 | ||||
Rated Making Voltage of the Operation Mechanism | V | DC/AC： 110, 220 | |||
Rated Breaking Voltage of the Operation Mechanism | DC/AC： 110，220 | ||||
Clearance between Contactors | mm | 11±1 | |||
Over-travel (Compression Length of the Contactor Spring) | mm | 3.1±0.3 | |||
Three-phase Breaking and Making Asynchrony | ms | ≤2 | |||
Making Bounce Time of Contact | ≤2 | ||||
Average Breaking Speed | m / s | 1.2±0.3 | |||
Average Making Speed | 0.6±0.2 | ||||
Breaking Time | under the highest operation voltage | ms | ≤50 | ||
under the lowest operation voltage | ≤60 | ||||
Making Time | ≤100 | ||||
Resistance of Main Circuits of Different Phases | υ Ω | ≤200 | |||
Allowable Accumulated Thickness of Abrasion of Active and Static Contactors | mm | 3 | |||
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