ZW7-40.5 Outdoor High-Voltage AC Vacuum Circuit Breaker
ZW7-40.5 Outdoor High-Voltage AC Vacuum Circuit Breaker

ZW7-40.5 Outdoor High-Voltage AC Vacuum Circuit Breaker

1.1 The three-phase AC 50Hz outdoor switchgear is suitable for 35kV power system used in urban network and rural network for making and breaking load current, overcurrent and short-circuit current, and for other similar applications.
1.2 Standard
GB1984 "High-voltage alternating-current circuit-breakers" GB/T 11022 "Common specifications for high-voltage switchgear and controlgear standard" DL/T402 "Technical conditions for ordering the high-voltage AC circuit breaker"

ZW7-40.5 Outdoor High-Voltage AC Vacuum Circuit Breaker





Working environment conditions:

1.1 Ambient air temperature: -40℃~+45℃, and maximum daily temperature difference is 25K;

1.2 Relative humidity: The daily mean is not greater than 95%, and the monthly mean is not greater than 90%;

1.3 Altitude: ≤2,000 meters;

1.4 Wind speed: Not exceed 35m/s (equivalent to wind pressure 700 Pa);

1.5 Pollution degree: 3, 4;

1.6 Icing thickness: 10mm;

1.7 Seismic capacity: Horizontal acceleration: 0.3 g m/s2; vertical acceleration: 0.2 g m/s2;

1.8 Installed in places where there are no fire, explosion, chemical corrosion, and frequent severe vibration.

For any requirements out of the normal working conditions, please contact the manufacturer.

Rated currentA1250, 1600, 2000
Rated frequencyHz50
Rated insulation   level1 minute power frequency   withstand voltageDry testkVPhase to phase, phase to  earth 95 / 185 open contacts 118
Wet test80
Lighting impulse   withstand voltagePhase to phase,   phase to earth / open contacts 215
Rated short-circuit breaking   currentkA202531.5
Rated short-circuit making   current (peak)kA506380
Rated peak withstand currentkA506380
4s thermal stability currentkA202531.5
Rated operation sequence
Closing timekV≤ 60
opening timeA≤ 120
Rated short-circuit breaking   current ON/OFF timesTimes30
Mechanical life
1 minute power frequency   withstand voltage of control circuit and auxiliary circuitV2,000
Rated operating voltage and   auxiliaray voltageAAC/DC220, DC110



Zhejiang Tengen Electric Co., Ltd.

Sulv Industrial Zone, Liushi Town, Yueqing City, Zhejiang Province, China, 325699

+86 21 3119 8727

Copyright ©2024 Zhejiang Tengen Electric Co., Ltd.


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