ZW8-12 Outdoor Vacuum Circuit Breaker
- Altitude:≤2000m
- Ambient air temperature:-40℃~ +40℃
- Wind speed:≤34m/s (Equal to 700Pa over cylindrical surface)
- Earthquake intensty:8 degree
- Relative humidity: Monthly average≤90%; Daily average≤95%
- Ice thickness:10mm
- Pollution degree: IV
- There will be have dew under the condition of high temperature low down hastily
- Vacuum arc exctinguish.
- Silicon rubber and plastic composite insulation.
- Extension for Disconnection Switch Recloser Control.
Technical parameter
| Item | Unit | Data |
| Rated voltage | kV | 12 |
Power frequency withstand voltage (1min) | kV | 42 |
Lightning impulse withstand voltage (peak) | kV | 75 |
Rated current | A | 630/1000 |
Rated power frequency | Hz | 50/60 |
Rated short circuit breaking current | kA | 12.5/16/20 |
Rated operating sequence | O-0.3s-CO-180s-CO | |
Breaking number for rated short circuit current | Times | 30 |
Rated short circuit making current (peak) | kA | 31.5/40/50 |
Rated withstand current (peak) | kA | 31.5/40/50 |
Rated short-duration withstand current (4s) | kA | 12.5/16/20 |
Rated short circuit duration | s | 4 |
Mechanical life | Times | 10000 |
Rated operating voltage and rated auxiliary circuit voltage | V | AC220V DC220V DC24V |
Rated current of over-current tripper | A | 5 |
Outline and installation dimensions
ZW8-12 Outdoor Vacuum Circuit Breaker
ZW8-12 outdoor AC vacuum circuit breaker is used to make and break load current, overload current and short cicruit protection in 12kV,50Hz/60Hz power system. It is applicable for substations, industry and mining, urban and rural electricity power networks, especially applicable in occasions with frequent operation and automatic power distribution network. It accords with the standards of IEC62271-100 & GB1984 AC high voltage circuit breaker, GB/11022 HV general technical requirement of switch and control apparatus.
SINOAMIGO POWER T&D include below:
VCB & Operation Mechanism: Zhejiang Juli Electric Co.,Ltd
Zhejiang Juli Electric Co.,Ltd. Focus on VCB Operating Mechanism, Vacuum Circuit Breaker, Recloser Controller for VCB, include R&D, manufacturing, marketing and after service, honored as a member of High-Technology corp in China, now employees more than 300 and technician team more than 35%. Started since 2000, with headquarter in Liushi Town, Wenzhou City,China, where were named as the China electricity capital centre; Company pay a lot capacity and time for R&D, cooperate with many famous University intelligence and famous brand enterprises.
Sino Amigo, your China friends; Wherever you go, SINOAMIGO
