ZW□-40.5 Outdoor Sealed Permanent Magnet Circuit Breaker

ZW□--40.5M outdoor high-voltage permanent magnetic vacuum circuit breaker adopts a specially designed integrated solid-sealed column and a highly reliable operating mechanism. This device is mainly used in medium-voltage overhead line power grids to disconnect and connect load current, overload current, and short-circuit current.

Price：

￥0.00
Category：

Outdoor High Voltage Vacuum Circuit Breaker
Browse number：

25
Release time：

2024-09-21 23:25:25
Quantity： - +
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Detailed Description

Overview

ZW□--40.5M outdoor high-voltage permanent magnetic vacuum circuit breaker adopts a designed integrated solid-sealed column and a highly reliable operating mechanism. The device is mainly used in medium-voltage overhead line power grids to disconnect and connect load current, overload current, and short-circuit current.

High reliability

Maintenance-free throughout the life cycle

High mechanical and electrical life

The whole machine is small in size, light in weight, and easy to install

Normal use conditions

Ambient air temperature: -30℃～+60℃;

Altitude: not more than 3000 meters;

Wind speed not more than 34m/s;

Vibration or earthquake from outside the switchgear and control equipment is negligible;

Pollution level: Level IV;

Storage temperature -40℃～+85℃.

Technical Parameters

NO.	Items	Unit	Date
1	rated voltage	kV	40.5
2	Rated current	A	1250/1600
3	Rated frequency	Hz	50 or 60
4	Power frequency withstand voltage for 1 minute (wet) (dry) Interphase, ground/fracture	kV	80 95/95
5	Lightning impulse withstand current (peak value) Interphase, ground/fracture	kV	185
6	Rated short circuit breaking current	kA	25/31.5
7	Rated short-circuit closing current (peak)	kA	63/80
8	Rated peak withstand current	kA	63/80
9	4S short-time withstand current	kA	25/31.5
10	Rated operating cycle		O－0.1s－CO－3s－CO-6sCO-60s Recovery
11	Rated short-circuit current breaking times	次	30
12	mechanical life	次	100000
13	Institutional control voltage	V	AC/DC220
14	Secondary circuit 1-minute power frequency withstand voltage	KV	2

Main mechanical parameters of circuit breaker

NO.	Parameter	Unit	Date
1	clearance between open contacts	mm	16±1
2	Contact overtravel	mm	4±0.5
3	opening speed	m/s	1.4-1.8
4	closing speed	m/s	0.4-0.8
5	Contact closing bounce time	ms	≤5
6	Center distance between phases	mm	600±2
7	Three phase opening and closing asynchrony	ms	≤2
8	Resistance of each phase conductive circuit	μΩ	＜80
9	close time	ms	25～45
10	Opening time	ms	20～45
11	weight	Kg	450