12kv Hot Sale High-Voltage Vacuum Circuit Breaker

Model NO.: VS1(VYF1)-12


Operation: Electric Type


Arc-extinguishing Medium: Vacuum


Poles Number: 3


Function: Overcurrent Protection


Opertion Model: Electrically or Manually


Origin: Jiangyin Yunfeng, China




Breaking Capacity: High Voltage Circuit Breakers


Speed: High-Speed Circuit Breaker


Installation: Fixed


Type: Circuit Breaker


Certification: ISO9001-2000, CE


Trademark: YF


Product Overview

VS1(VYF1-12)series indoor AC HV Vacuum Circuit Breaker is applied in 50 Hz network with the rated voltage of 12kV and it is the product developed and manufactured by our company through bringing in ABB's technology and in combination with domestic industrial development conditions and manufacturing capacity. The overall structure of such product is the form of integrative installation of switch body and operation mechanism. The composite Insulation structure is used for the product. It has no pollution, no explosive hazards and high insulation level. It can be used at the site such as mining and industrial enterprises, power generation plants and substations, etc. for controlling and protecting the equipment. It is particulary applicable for the industry required for frequent operation, such as electric arc steel-making of matallurgy.

The integrated design of modularized spring operation mechanism and circuit breaker body can be used for the operation mechanism of the series product. It not only can be used as the fixed installation unit, but also can compose the handcart unit for using. It not only can be operated electrically, but also can be operated manually.









Model Specification





Main Techincal Parameters

Serial No.	Item	Unit	Numerical Value
1	Rated voltage	kV	12
2	Rated frequency	Hz	50
3	Rated current	A	630,·1250	630,1250,1600,2000,2500,3150	1250,1600,2000,2500,3150
4	Rated short-circuit breaking current	kA	25	31.5	40
5	Rated short-circuit making current	kA	63	80	100
6	Rated short-time withstand current(thernal stability current/duration	kA/s	25/4	31.5/4	40/4
7	Rated peak withstand current(thernal stability current)	kA	63	80	100
8	Rated short-time breaking current and breaking times	time	50
9	Rated 1 min power-frequency wuthstand voltage(effective value)	kV	42
10	Rated lightning impluse withstand voltage(peak)	kV	75
11	Rated breaking current of single/back-to-back capacitor bank	A	630/400(40kA is 800/400)
12	Rated making inrush current of capacitor bank	kA	12.5(frequency no larger than 1000Hz)
13	Rated operation sequence		Opening-0.3s-closing, opening-180s-closing,opening
14	Clearance betweent open contacts	mm	11±1
15	Overtravel(compression length of contact spring)	mm	3.2±0.5
16	Contact closing bounce time	ms	≤2
17	Three-phase opening and closing asynchronization	ms	≤2
18	Average opening speed	m/s	0.9-1.2
19	Average closing speed	m/s	0.5-0.8
20	Opening time(rated voltage)	ms	20-50
21	Closing time(rated voltage)	ms	35-70
22	Allowable gross thickness of wear of dynamic, static contact	mm	3
23	Main conductive circuit resistance	μΩ	≤50(630A)	≤45(1250A)	≤35(over 1600AC)
24	Mechanical life	time	20000
25	Rated current breaking times(electrical endurance)	time	20000
26	Operating voltage of control unit	V	≌220/110
27	Circuit breaker weight	kg	Fixed Type	130(1600-2000A)	150(2500-3150A)
			Handcart Type	155(1600-2000A)	175(2500-3150A)

Contact us if you need more details on Vacuum Circuit Breaker. We are ready to answer your questions on packaging, logistics, certification or any Other aspects about Vacuum Arc Extinction Principle、Protecting Load Current. If these products fail to match your need, please contact us and we would like to provide relevant information.

Product Categories : 12kV Indoor HV Load Switch