Beijng Huadong Electric Co.,Ltd
5 1

High Voltage Vacuum Circuit Breaker

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Beijng Huadong Electric Co.,Ltd
[China]

Address
No. 69 Longzhuashu Nanli, Outside Zuo'An Men ??haoyang District, Beijing Beijing Beijing
Phone
86-10-60595374
Contact name
Luo Mei

Quick Information

  • Model Number : VH4 indoor high voltage vacuum circuit breaker

Description

Detailed Selling Lead Description

Item Name Unit Data
1 Rated Voltage KV 12/24/40.5
2 Rated Frequency HZ 50/60
3 Rated Insulation level Power Frequency Withstand Voltage in 1 Min KV 42/65
Lighting Impulse Withstand Voltage 75125
4 Rated Current A 630
1250
1600
2000
2500 3150
5 Rated Short-Circuit Interrupting Current KA 20 25 31.5 40
6
Rated Short Circuit Closing Current (peak)
KA 50 63 80 100
7 Rated Peak Withstand Current KA 50 63 80 100
8 Rated Short-time Withstand Current(4S) KA 20 25 31.5 40
9 Number or  Openings at Rated Short-Circuit Current Times 50 30
10  Rated Short Circuit Duration  s 4
11 Rated Operating Sequence   O-0.3s-C/O-180s-C/O
12 Mechanical Service Life Times 30000    10000(40KA)
13 Rated Interrupting Current for a Single Capacitor Group A 630
14 Rated Interrupting Current for back-to-back Capacitor Group 400

 

VH4 series vacuum circuit breaker is a kind of indoor switchgear used in electric power system . lt works as protection and control unit for power grid equipment and power equipment in industrial and mining enterprises . lt is a new generation of high quality vacuum circuit breaker developed by Beijing Huadong Senyuan Electric CO.,LTD . specifically for nuclear power projects . Main circuit of the circuit breaker may adopt fixed sealing type arc quenching chamber pole (pole that adopts special technique to envelop vacuum arc quenching chamber and conductive connecting piece using epoxy resin ) made by Siemens ,and may also adopt open type arc quenching chamber pole made by our company .lts mechanism adopts long life and high reliable modular spring operating mechanism made by our company .

 Model VH4-EP circuit breaker is one of our companys Model VH4 series of high voltage vacuum circuit breakers .lts main circuit adopts fixed sealing type vacuum arc quenching chamber imported from German Siemens in original package . Arc quenching chamber and conductive connecting rod etc parts ate cast into pole using epoxy resin by means of special technique , which reduces assembly link , increases mechanical reliability greatly , at the same time , increases external creepage dis tance ,and guarantees the high reliabilities of electric performance in all kinds of harsh environments .

 

 

 

Beijing Huadong Simbo Co., Ltd.

Addr.:No.69 Longzhaoshu Nanli,

ChaoYang Dist., Beijing, China

Tel: +86-10-87694425

Fax: +86-10-87697121

Comtact:Ruomey

 


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