ZW20-12 Outdoor Vacuum Circuit Breaker with SF6 Gas Insulation
ZW20-12
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.
Quantity
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.
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 |
Outline and installation dimensions
Why Us?
1. Schneider trusted material supplier, you no worry for quality control;
2. STL standard testing lab inside own property factory industrial zone;
2. STL standard testing lab inside own property factory industrial zone;
3. 23 years experience of production Medium voltage circuit breaker material, 17 years for overseas market; you no worry for communication and save time.
