
Overview:
ZW32-12 outdoor vacuum circuit breaker (hereinafter referred to as circuit breaker) is an outdoor power distribution equipment with a rated voltage of 12kV and three-phase AC 50Hz. It is mainly used to break and close the load current, overload current and short-circuit current in the power system. It is suitable for protection and control in substations and industrial and mining enterprises’ power distribution systems, as well as places where rural power grids are frequently operated. This circuit breaker has the characteristics of small size, light weight, anti-condensation, maintenance-free, etc., and can adapt to relatively harsh climatic conditions and dirty environments.
Main Technical Parameters:
Project | Parameter |
Rated voltage | 12kv |
Rated freqencey | 50Hz |
Rated current | 630A |
Rated short-circuit breaking current | 20kA |
Rated peak withstand current (peak) | 50kA |
Rated short-time withstand current | 20kA |
Rated short-circuit making current (peak value) | 50kA |
Mechanical life | 10000 Times |
Rated current breaking times | 30 Times |
Power frequency withstand voltage (1min): (wet) (dry) phase-to-phase, to ground/break | 42kv / 48kv |
Lightning impulse withstand voltage (peak value) phase-to-phase, to ground/break | 75kv / 85kv |
Secondary circuit 1min power frequency withstand voltage | 2kv |
Standards:
◆ GB1984 “AC high-voltage circuit breakers”;
◆ GB11022 “Common technical requirements for high-voltage switchgear and control equipment standards”;
◆ GB311.1-6 “Insulation coordination of high-voltage power transmission and transformation equipment”;
◆ GB763 “Heating of AC high-voltage electrical appliances during long-term operation”;
◆ GB2706 “Dynamic and thermal stability test methods for AC high-voltage electrical appliances”;
◆ GB3309 “Mechanical tests for high-voltage switchgear at room temperature”;
◆ DL/T593 “Common ordering technical conditions for high-voltage switchgear”.
If you didn’t know which switchgear system that used to your present project, it’s time to speak to our Industry Experts-Kimball. We’re glad to answer any questions you may have!
”From planning to delivery, it has been a smooth and gratifying transaction. The Dongshenyuan Electric team is quickly responsive, and the quality of DSY Switchgear are top-grade! In the end, they deliver as promised, and more. We look forward to a long-term partnership with them.”
Manufacturer Of Switchgear For Power Distribution and Electricity Generation System In China for 20 years
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