ZW20-12 Outdoor Vacuum Circuit Breaker with SF6 Gas Insulation
- Altitude:≤3000m
- Ambient air temperature:-30℃~ +40℃
- Wind speed:≤34m/s (Equal to 700Pa over cylindrical surface)
- The ambient air may be dust, smoke, corrosive gas, steam or salt fog contamination
- The violent vibration and no recurrent
- Air pollution degree: III
Technical parameter
| Item | Unit | Data |
| Rated voltage | kV | 12 |
Power frequency withstand voltage (1min) | kV | 42/48 |
Lightning impulse withstand voltage (peak) | kV | 75/85 |
Rated current | A | 630 |
Rated power frequency | Hz | 50/60 |
Rated short circuit breaking current | kA | 20/25 |
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 | 50/63 |
Rated withstand current (peak) | kA | 50/63 |
Rated short-duration withstand current (4s) | kA | 20/25 |
Rated short circuit duration | s | 4 |
Mechanical life | Times | 10000 |
Rated operating voltage and rated auxiliary circuit voltage | V | AC/DC220V |
ZW20-12 Outdoor Vacuum Circuit Breaker with SF6 Gas Insulation
ZW20-12 outdoor vacuum circuit breaker with SF6 gas insulation, is outdoor high voltage switch equipment with rated voltage of 12kV and three phase AC 50Hz. It is mainly used for breaking and closing load current, overload current and short-circuit current of the power system. The circuit breaker is suitable for application as protection and control in transformer stations, industrial and mining enterprise as well as the urban and rural distribution networks, and it is particularly suitable for places with frequent operations and automated distribution networks in urban networks. The product is matched with the controller to meet the requirement of a distribution automation system, and it can be used for reliably and effectively finishing functions of the traditional auto recloser. The circuit breaker adopts mature case type sealing structure, the inside is filled with SF6 Gas, so it has excellent sealing performance so as not to be affected by external environment, and it is a maintenance-free product. The spring operating mechanism adopts straight chain main transmission and a multi-stage tripping system, the reliability of actions is high, and it is an excellent product of on-pole circuit breaker.
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
