Page 14 - YINGMING POWER(HIGH VOLTAGE)

YINGMING POWER

ZW8-12

OUTDOOR HIGH VOLTAGE
VACUUM CIRCUIT BREAKER

Overview
ZW8-12 series vacuum circuit breaker is a high-voltage outdoor switchgear with rated voltage of 12kV and three-phase AC 50Hz. It is mainly used to
break the load current, overload current and short-circuit current of agricultural network, city network and small power system. The overall structure of
the product is a three-phase common box type, and the three-phase vacuum interrupter is placed in a metal box. The SMC insulation material is used
for phase insulation and ground insulation, and the performance is reliable and the insulation strength is high.
ZW8-12G is a combination of ZW8-12 circuit breaker and isolation knife. It is called a combined circuit breaker and can be used as a sectional switch.
The operating mechanism of this series of products is CT23 spring energy storage operating mechanism, which is divided into electric and manual. The
circuit breaker has a closing inrush current control function to meet control and measurement requirements. With electronic control unit, it can realize
“four remote” monitoring.

Model meaning

Z W 8 - 12 G / 630 - □
Rated short-circuit breaking current (kA)
Rated current (A)
With isolation knife
Rated voltage (kV)
Design Number
Outdoor type
Vacuum circuit breaker

Use environment

◆ Ambient temperature: upper limit +40℃ lower limit -30℃ ;
◆ Altitude: ≤ 1000m;
◆ Wind pressure: ≤ 700Pa (equivalent wind speed 34m/s);
◆ Air pollution level: Grade III;
◆ No frequent and severe vibrations.

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