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Beijing Huadong Electric Co., Ltd.

  Details of Trade Lead
Subject :  Vh7 Series 40.5kv Outdoor Vacuum Circuit Breaker
   Post Date :  21st August 2007
   Expiry date :   20th August 2008
Vh7 Series 40.5kv Outdoor Vacuum Circuit Breaker
 Description

Model VH7 vacuum circuit breaker is outdoor high voltage switchgear for three-phase AC 50Hz electric system with rated voltage of 40.5kV, it features anti-condensation, anti-pollution, anti-aging, outdoor high temperature proof, long service life, stable and reliable operation, maintenance free and frequent operation etc, may provide protection and control for industrial and mining enterprises, power plant and substation, especially suitable for places where frequent operation is required.

Technical Parameters:
1 Rated voltage 40.5kV
2 Rated current 1250, 1600A
3 Rated short-circuit interrupting current 20, 25, 31.5kA
4 Number or Openings at Rated Short-Circuit Current 20times
5 Rated short-circuit closing current 50, 63, 80kA
6 Rated peak withstand current 50, 63, 80kA
7 Rated short-circuit withstand current(4s) 20, 25, 31.5kA
8 Rated lighting impulse withstand voltage 185 (222)kV
9 Rated power frequency withstand voltage in 1 Min 95 (114)kV
10 Rated Operating Sequence 0-0.3s-CO-180s-CO
11 Rated Interrupting Current for a Single Capacitor Group 630A
12 Mechanical Service Life 10000times
13 Rated operating voltage DC220/110 AC220/110V
14 Average opening velocity 2.0+/- 0.3m/s
15 Average closing velocity 0.75 +/-0.20m/s
16 Opening time 40 +/-10ms
17 Closing time 80 +/-20ms
18 Total Weight 680 (910)kg.

Please contact us for more details.

 Contact Information
Contact Person
Ms. Emily Lian
Designation
trader
Address NO.69, LONGZHAOSHU NANLI, CHAOYANG DIST., BEIJING - 100078, CHINA
Phone Number 86-10-87697121/87698689
Mobile +8613521619493
Fax 86-10-87697121
Year Established 1985
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