Zw32-12 (G) Outdoor High Voltage Vacuum Circuit Breaker

Short Description:

Product Detail

Product Tags

Overview

ZW32-12 (G) outdoor vacuum circuit breaker (hereinafter referred to as circuit breaker) is an outdoor power distribution equipment with a rated voltage of 12kV and a three-phase AC 50Hz.
It is mainly used for breaking and closing the load current, overload current and short-circuit current in the power system. It is suitable for protection and control in substations and power distribution systems of industrial and mining enterprises, and places where rural power grids operate frequently.
The circuit breaker has the characteristics of small size, light weight, anti-condensation, maintenance-free, etc., and can adapt to harsh climatic conditions and dirty environments.

Normal Use Conditions

◆Ambient temperature: -40℃~+40℃; Altitude: 2000m and below;
◆The surrounding air can be polluted by dust, smoke, corrosive gas, steam or salt mist, and the pollution level is the target level;
◆The wind speed does not exceed 34m/s (equivalent to 700Pa on the cylindrical surface);
◆Special conditions of use: The circuit breaker can be used under normal conditions different from those specified above. Please negotiate with us for special requirements.

The Main Technical Parameters

Serial number	Project	Units	Parameters
1	Rated voltage	KV	12
2	Rated frequency	Hz	50
3	Rated current	A	630
4	Rated short-circuit breaking current	KA	20
5	Rated peak withstand current (peak)	KA	50
6	Rated short-time withstand current	KA	20
7	Rated short-circuit making current (peak value)	KA	50
8	Mechanical life	times	10000
9	Rated short-circuit breaking current breaking times	times	30
10	Power frequency withstand voltage (1min): (wet) (dry) phase-to-phase, to ground/fracture	KV	7/8
11	Lightning impulse withstand voltage (peak value) phase-to-phase, to ground/fracture	KV	75/85
12	Secondary circuit 1min power frequency withstand voltage	KV	2