Feature

An Outdoor Power Distribution Equipment with Rated Voltage Of 12kv and Three-Phase Ac 50hz.

Mainly Used in Rural Power Network, Railway, Mine, Port and Other Power Distribution Systems, Especially for Outdoor Overhead Lines, Breaking and Closing Load Current, Overload Current and Short-Circuit Current in Power System

Switch and Protect The Power Grid

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Product Introduction

Product description

Zw10-12 outdoor high voltage vacuum circuit breaker (hereinafter referred to as circuit breaker) is an outdoor power distribution equipment with rated voltage of 12kV and three-phase AC 50Hz. It is mainly used in rural power network, railway, mine, port and other power distribution systems, especially for outdoor overhead lines, breaking and closing load current, overload current and short-circuit current in power system. Switch and protect the power grid.

USE ENVIRONMENT

1. Ambient air temperature: upper limit + 40 ºC, lower limit - 15 ºC;

2. Altitude: ≤ 2000m (if the altitude needs to be increased, the rated insulation level shall be increased accordingly)

3. Amplitude: the seismic intensity shall not exceed 8 degrees;

4. The daily average value of air relative humidity shall not be greater than 95%, and the monthly average value shall not be greater than 90%;

5. Places without fire, explosion hazard, serious pollution, chemical corrosion and violent vibration.

MAIN THCHENICAL PARAMETERS

Number	Item	Unit	parameters
1	Rated voltage	kV	12
2	Rated current	A	630/1250
3	Rated frequency	Hz	50
4	Rated short-circuit breaking curent	kA	12.5/25
5	Rated peak withstand current(peak)	kA	31.5/50
6	Rated short-time withstand current(4s)	kA	12.5/25
7	Rated short-circuit making current(peak)	kA	31.5/50
8	Rated short-circuit breaking curent breaking times	Times	30
9	Mechanical life	Times	10000
10	Power frequency withstand voltage(1min)	kV	42
11	Lightning impluse withstand voltage(peak)	kV	75
12	Power frequency withstand voltage of secondary circuit(1min)	kV	2
13	Net weight	Kg	150