ZW43 12KV AC power system line protection switch

ZW43-12 outdoor high-voltage vacuum circuit breaker is an outdoor high-voltage switchgear with three-phase AC 50Hz and rated voltage of 12KV. The switch is mainly used as a substation 10KV outgoing switch and a 10KV three-phase AC power system as a line protection switch for dividing and combining load current, breaking overload current and short-circuit current.

Description

ZW43 12KV 630A three-phase AC power system line protection switch

overview about outdoor high voltage vacuum circuit breaker

Power system line protection switch. ZW43-12 outdoor high-voltage vacuum circuit breaker is an outdoor high-voltage switchgear with three-phase AC 50Hz and rated voltage of 12KV. The switch is mainly used as a substation 10KV outgoing switch and a 10KV three-phase AC power system as a line protection switch for dividing and combining load current, breaking overload current and short-circuit current.

The circuit breaker conforms to technical standards such as GB1984-2003 (high voltage AC circuit breaker), DL/T402-2007 (high voltage AC circuit breaker ordering technical conditions) and DL/T403-2000 (12KV-40.5 high voltage vacuum circuit breaker ordering technical conditions).

Product Structural features :

Three-phase pillar type fully enclosed structure with high sealing performance:

1. The breaking performance is stable and reliable, there is no danger of burning and explosion, maintenance-free, small size, light weight and long service life.

2. It has strong moisture-proof and anti-condensation properties, especially suitable for use in cold or humid areas.

3. Imported materials have good insulation performance, high temperature resistance, UV resistance and aging resistance.

Efficient and reliable miniaturized spring operating mechanism:

1. The power of the energy storage motor is small, the energy consumption of opening and closing is low, the mechanism transmission adopts the direct transmission mode, the number of parts is small, and the reliability is high.

2. The operating mechanism is placed in a sealed box, which can effectively prevent corrosion and improve the reliability of the mechanism.

Convenient and flexible control and free combination performance:

1. Manual opening or electric opening and closing and remote control operation can be used.

2. It can be matched with intelligent controller to realize power distribution automation, or combined with recloser controller to form automatic recloser and sectionalizer.

3. Two-phase or three-phase current transformers can be installed for over-current or short-circuit protection.

4. It can provide the current acquisition signal for the intelligent controller, and can install the current transformer for metering according to the user’s requirements.

5. The three-phase linkage isolating switch can be taken out, with the anti-mistake interlocking device, and the arrester pillar insulator can be connected, which is convenient for maintenance.

 use environment for this power system line protection switch

Ambient temperature:-10ºC-+40ºC
Relative humidity:The average humidity of a day should be no more than 95%. The average humidity of a month should be no more than 90%.
Earthquake intensity: not exceed 8 degrees.
Saturated vapor pressure the average pressure of a day should be no more than 2.2kPa; the average pressure of a month should be no more
Than1.8Kpa;
The height above sea level:≤1000 m (Except special requirements)
It should be installed in the places without fire, explosion, serious filth, and chemical erosion and violent vibration.

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