12KV Outdoor Vacuum Circuit breaker (1)Suit for three-phase A.C50Hz (2)Rated voltage:12KV (3)Rated current:630A
General description:
ZW8-32 Outdoor Vacuum circuit breaker is three-phase A.C 50HZ outdoor high voltage distribution equipment with 12kv rated voltage and below, which can be used for opening and closing loading current, overloading current and short-circuit current. If it is connected with computer remote control system and data wireless transmission terminal etc., the remote opeing and closing function can be achieved. This is the optimum unoil equipment for remarking the town and country’s electric net.
Application and feature:
It is equipped with CT23 type spring energy-stored operating mechanism. Energy-stored, opening and closing can be achieved by motor or by manual.
Applying ambient conditions:
Ambient temperature should be -40~+40.
The height above sea level should be no higher than 1000m.
Wind pressure should be on more than 700Pa.
It is equivalent to wind speed of 34m/s.
The air filthy should be with in III degree.
Frequently violent vibration should be forbidden.
Construction of ZW8 Vacuum circuit breaker
Integral construction with three-phase in one box
Vacuum circuit breaker
Spring operating mechanism
Insulating system
Conduction loop
Box cover/enclosure
Hermetic parts
Technical data
specification | unit | Data |
Rated voltage | KV | 12 |
Rated current | A | 630 |
Rated power-frequency withstand voltage(dry test/ wet test) | KA | 42/34 |
Rated short time withstand current | KA | <20 |
Rated withstand current(peak) | KA | <50 |
Rated short-circuit breaking current | KA | <20 |
Rated short-circuit closing current | KA | <50 |
Rated lighting impulse withstand voltage | KA | 75 |
Rated duration of short circuit | S | 4 |
Rated making operation of short circuit breaker | CYCLES | 30 |
Other technical data | ||
Rated voltage of store energy motor | V | DC220,110 AC220,110 |
Power of energy-stored motor | W | 200 |
Power of opening and closing coil | V | ~200,~100,~220 |
Current of closing coil | A | |
Current of opening coil | A | 0.5, 0.99,0.51 |
Current of overloading release | A | 5 |
ZW8-12 Series Outdoor Vacuum Circuit Breaker
