Overview
ZW7-40.5 outdoor high-voltage vacuum circuit breaker is used for outdoor high-voltage electrical equipment with AC 50HZ and 40.5KV voltage. Attached spring actuating structure or electromagnetic actuating structure, can be remote control electric opening and closing, can also be in situ manual energy storage, manual opening and closing.
Design performance in line with GB1984-89 “AC high-voltage circuit breaker” national standards. And meet the requirements of IEC-56 “AC High Voltage Circuit Breaker” International Electrotechnical Commission standard.
ZW7-40.5 series outdoor high-voltage vacuum circuit breaker is mainly used for the control and protection of outdoor 35KV power transmission and transformation system, and can also be applied to the normal operation and short-circuit protection of urban and rural power grids and industrial and mining enterprises.
The overall structure of the product is a pillar-type porcelain vase; the upper vase is equipped with a vacuum arc extinguishing chamber, and the lower vase is a pillar porcelain vase. It is suitable for frequent operation. And has the advantages of good sealing, anti-aging, high pressure resistance, non-combustion, non-explosion, long service life, easy installation and maintenance.
Product Features
- Adopting vacuum arc extinguishing, strong breaking capacity, long electric life, mechanical life 10000 times;
- Simple structure, maintenance-free, long non-overhaul cycle;Good insulation performance, strong anti-fouling ability;
- Can be equipped with spring or electromagnetic actuating mechanism, reliable mechanical performance, frequent operation, no fire and explosion hidden danger;
- Built-in current transformer metering accuracy up to 0.2S level, current ratio 50/5-1600/5 optional compound ratio;
- Built-in condensation controller can keep the circuit breaker operating reliably under certain temperature and humidity.
- With insurance remote control ≤ 200mm or less.
