ZW32-40.5 Outdoor High-voltage Vacuum Circuit Breaker

ZW32-40.5 Outdoor High-voltage Vacuum Circuit Breaker

The ZW32-40.5 outdoor high-voltage vacuum circuit breaker adopts a uniquely designed integrated sealed pole and a highly reliable operating mechanism. This device is mainly used in medium-voltage overhead power networks for opening and closing load current, overload current, and short-circuit current.

Detail

Overview

Execution Standard

1. GB1984-2003 "High-Voltage Alternating Current Circuit Breakers"

2. GB/T11022-1999 "Common Technical Requirements for High-Voltage Switchgear and Controlgear Standards"

3. IEC62271-100 "High-Voltage Alternating Current Circuit Breakers"

Main Technical Parameters

No.	Item	Unit	Data
01	Rated Voltage	kV	40.5
02	Rated Current	A	630/1250
03	Rated Frequency	Hz	50 or 60
04	1min Power Frequency Withstand Voltage (Wet/Dry) Between Phases, to Ground/Gap	kV	80/95/95
05	Lightning Impulse Withstand Voltage (Peak) Between Phases, to Ground/Gap	kV	185
06	Rated Short-Circuit Breaking Current	kA	25/31.5
07	Rated Short-Circuit Making Current (Peak)	kA	63/80
08	Rated Peak Withstand Current	kA	63/80
09	4s Short-Time Withstand Current	kA	25/31.5
10	Rated Operating Sequence		O-0.1s-CO-3s-CO-6s-CO-6s-CO-60s-Restore
11	Rated Short-Circuit Current Breaking Times	Times	30
12	Mechanical Life	Times	10000
13	Mechanism Control Voltage	V	AC/DC220
14	1min Power Frequency Withstand Voltage for Secondary Circuit	kV	2
15	Contact Gap	mm	16±1
16	Contact Overtravel	mm	4±0.5
17	Opening Speed	m/s	1.4-1.8
18	Closing Speed	m/s	0.4-0.8
19	Contact Closing Bounce Time	ms	≤5
20	Phase Center Distance	mm	460±2
21	Three-Phase Opening/Closing Asynchrony	ms	≤2
22	Three-Phase Conductor Circuit Resistance	μΩ	<80
23	Closing Time	ms	≤100
24	Opening Time	ms	≤50
25	Weight	Kg	270