12kV Outdoor Permanent Magnetic Vacuum Circuit Breaker
ZW32Y-12/630-20/25 type outdoor permanent magnetic H.V. vacuum on pillar dry circuit breaker (hereinafter referred to as circuit breaker), is the control and protection equipment used in rated voltage 12KV, 50HZ AC three phase high voltage distribution grid. Mainly used for load current, overload current and short-circuit current breaking, closing in the power lines. Applied to substation and industrial and mining enterprises in power system used for protection and control purposes. In accordance with “GB1984 AC high voltage circuit breaker”, “GB1985 high voltage AC disconnectors and earthing switches”, DL/T402, DL/T403 requirements.
Ambient temperature: upper limit +40℃, lower limit -30℃;
Wind pressure: not more than 700Pa (corresponding to the wind speed 34m/s);
Earthquake intensity: do not exceed 8 degree;
Pollution grade: III class;
Maximum daily temperature variety less than 25℃.
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