ZN63A (VS1) -12 Indoor High Voltage Vacuum Circuit Breaker

The ZN63A (VS1) indoor high-voltage vacuum circuit breaker is a three-phase AC 50Hz indoor high-voltage switchgear with a rated voltage of 7.2-12 kV. It serving as a protection and control unit for power grid equipment and power equipment in industrial and mining enterprises.

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￥0.00
Category：

Indoor High Voltage Vacuum Circuit Breaker
Browse number：

22
Release time：

2024-10-21 23:20:40
Quantity： - +
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Detailed Description

Product Overview

The ZN63A (VS1) indoor high-voltage vacuum circuit breaker is a three-phase AC 50Hz indoor High-voltage Switchgear with a rated voltage of 7.2-12 kV. It serving as a protection and control unit for power grid equipment and power equipment in industrial and mining enterprises.

The circuit breaker complies with the national standards GB1984-89 "AC High Voltage Circuit breakers", JB3855-96 "3.6-40.5kV Indoor AC High Voltage Vacuum Circuit Breakers", DL403-91 "Technical Conditions for 10-35kV Indoor High voltage vacuum circuit breakers" and relevant international IEC standards, and has reliable interlocking function.

Main technical parameters

Item	Unit	Data
rated voltage	kV	12/24/40.5
Rated frequency	Hz	50
Rated 1-minute power frequency withstand voltage (phase to phase, ground to ground, port)	kV	42/65/95
Rated lightning impulse withstand voltage (phase to phase, ground to ground, port)	kV	75/118/125
Rated operating sequence		O-0.3S-CO-180S-CO

Item	Unit	Circuit breaker model
		C-GIS
Rated current	A	630	1250	1250	1600	2000	2500	1250	1600	2000	2500
Rated short circuit breaking current	kA	20/25		31.5				40
Rated short-circuit closing current (peak)	kA	50/63		80				100
Rated continuous short-circuit time	s	4		4				4
Rated short-circuit current breaking times	times	30		30				30
mechanical life	times	10000		10000				10000

Mechanical characteristic parameters of circuit breaker

name	Unit	Data
Contact opening distance	mm	12kV/9±1;24kV/13±1;40.5kV/18±1
Overtravel		3.5±0.5
Three phase opening and closing at different stages	ms	≤2
Bouncing time of closing contact	ms	12kV/ ≤ 2; 24kV/ ≤ 2; 40.5kV/≤3
Contact pressure of closing contact	N	20kA	25kA	31.5kA
		2000±200	2400±200	3100±200
Average opening speed	m/s	12kV/0.9~1.3; 24kV/1.1~1.6;40.5kV/1.8±0.2
Average closing speed		12kV/0.4~0.8; 24kV/0.6~1.0;40.5kV/0.8±0.2