ZW8-12 Outdoor High Voltage AC Vacuum Circuit Breaker

Three-phase AC 50Hz outdoor high-voltage switchgear. It consists of operating, conductive circuit, insulation system, seal and shell, and the overall structure is three-phase common box type. It is used in 10kV rural and urban power systems to separate and connect load current, overload current, short-circuit current and other similar places.

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￥0.00
Category：

Outdoor High Voltage Vacuum Circuit Breaker
Browse number：

22
Release time：

2024-09-21 16:32:40
Quantity： - +
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Detailed Description

Overview

Three-phase AC 50Hz outdoor High-voltage Switchgear. It consists of an operating and conductive circuit, an insulation system, a seal and a housing, and the overall structure is a three-phase common box type. It is used in 10kV rural and urban power systems to separate and connect load currents, overload currents, short-circuit currents and other similar places.

Implementation standards

GB1984-2003 "High-voltage AC Circuit breakers"

GB/T11022-1999 "Common technical requirements for high-voltage switchgear and control equipment standards"

IEC62271-100 "High-voltage AC circuit breakers"

Model meaning

Normal use conditions

◆Ambient temperature: -40℃ ~+40℃;

◆Altitude: ≤ 3000m (if the altitude increases, the rated insulation level will increase accordingly);

◆The surrounding air can be polluted by dust, smoke, corrosive gas, steam or salt mist, and the pollution level is IV;

◆The wind speed does not exceed 34m/s (equivalent to 700Pa on the surface of the cylinder);

◆Vibration or ground movement from outside the switchgear and control equipment can be ignored;

◆Use conditions.

If you need to use it under normal use conditions different from those specified above, please consult with us.

Technical Parameters

NO.	Items			Unit	Data
01	Rated voltage			kV	12
02	Rated current			A	630
03	Power frequency dry withstand voltage (1min)				42
04	Lightning impulse withstand voltage (peak value)			kV	75
05	Rated short-circuit breaking current			kA	16 20 25
06	Rated short-circuit closing current				40 50 63
07	Rated peak withstand current			kA	40 50 63
08	4s short-time withstand current				16 20 25
09	Rated operating sequence				O -0.3s-CO-180s-CO
10	Rated short-circuit current breaking times			times	30 10000
11	mechanical life
	Rated voltage of energy storage motor
12	Rated operating voltage Equipped with a dedicated spring operating mechanism		Opening coil Closing coil	v	DC 或AC 220
13	Rated current of overcurrent release device			A	5
14	Allowable wear thickness of dynamic and static contacts			mm	3
15	Contact opening distance			mm	11±1
16	Overtravel (compression length of contact spring)			mm	3
17	Three pole asynchronous closing and opening			ms	≤2
18	Contact closing bounce time			ms	≤2
19	Average opening speed			m/s	1.0± 0.2
20	Average closing speed			m/s	0.7 ±0.15
21	Opening time	Under the highest operating voltage		s	0.015-0.05
		At the lowest operating voltage		s	0.03-0.06
22	Combined time			s	0.025-0.05
23	Main circuit resistance			μΩ	120 (with G ≤ 200)