Description

The ZW20A-12 outdoor pole-mounted high-voltage vacuum circuit breaker is an outdoor high-voltage switchgear with a rated voltage of 12KV and a three-phase AC 50HZ. It is mainly used to break and close the load current, overload current and short-circuit current of the power system. It is suitable for protection and control in substations, industrial and mining enterprises, and urban and rural distribution networks. It is especially suitable for places with frequent operations and urban automated distribution networks. This product is matched with the controller to meet the requirements of the distribution automation system and can reliably and effectively complete the traditional recloser function. It adopts a mature box-type sealing structure and is filled with SF6 gas inside. It has good sealing performance and is not affected by the external environment. It is a maintenance-free product. Its spring operating mechanism adopts a direct-acting chain main drive and a multi-stage tripping system, which has high action reliability and is a good product of the circuit breaker.

Product Feature

1. Ideal equipment for the transformation of urban and rural power grids: it can be matched with the control to realize remote control, telemetry, remote signaling and rocking, realizing the “four remote” functions.
2. Flexible and convenient operation: This product has electric energy storage, electric opening and closing, and also has manual energy storage, manual opening and closing, and can operate at short or long distances with excellent breaking performance.
3. Excellent breaking performance: breaking short-circuit current 25KA up to 30 times.
4. Low operating power and high reliability: The newly designed operating mechanism of the small electric spring mechanism (about 30W) is reduced to the lowest level.
5. Flexible installation method: pole-mounted or seat-mounted installation can be used
6. Reliable sealing performance: SF6 pressure is zero gauge pressure, and using mature sealing structure technology, the sealing performance is reliable and not easy to leak.
7. Unique way of incoming and outgoing wires: silicone rubber tube is used to ensure sufficient insulation distance between terminals and excellent external insulation properties.
8. Safe to use: An explosion-proof device is installed on the top of the box. Even if there is an internal failure of the device, no high-temperature gas or splash will leak out.