Yueqing Pomanique Electric Co., Ltd.
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  • Contact Person : Mr. Zhou Benjamin
  • Company Name : Yueqing Pomanique Electric Co., Ltd.
  • Tel : 86-577-62732638
  • Fax : 86-577-62732636
  • Address : Zhejiang,Yueqing,F14, Jun Hao Xuan, Liuchuan Mansion, North Liuqing Road, Yueqing, Zhejiang, China
  • Country/Region : China
  • Zip : 325604

145kV Outdoor HV SF6 AC Circuit Breaker

145kV Outdoor HV SF6 AC Circuit Breaker
Product Detailed
Related Categories:Circuit Breakers
1. High breaking capacity. 2. Reliable operation mechanism. 3. Free of maintenance. 4. Certified quality assurance.

LW36A-145 type outdoor HV SF6 AC circuit breaker is developed for 50Hz, 145kV power system, serving as a controlling and protective device for the power circuit. The circuit breaker's arc-extinguishing medium is SF6 gas and it works with the interrupting technology of auto-expansion and CT30 spring operation mechanism. It is featured by high reliability, enhanced mechanical efficiency and high level of energy-saving. The product is manufactured in accordance with the standards of IEC62271-1 and IEC62271-100.

Detailed Specifications of SF6 Circuit Breaker

Rated Voltage

145kV

Rated Power Frequency Withstand Voltage (1min)

275kV

Rated Lighting Impulse Withstand Voltage

650kV

Rated Frequency

50Hz

Rated Current

3150A

First Pole to Clear Factor

1.5

Rated Short-circuit Breaking Current

31.5kA

Rated Short-circuit Making Current

80kA

Rated Short-time Withstand Current

31.5kA

Rated Peak Withstand Current

80kA

Rated Short-circuit Continuous Time

4s

Rated Out-of-synchronism Breaking Current

8kA

Rated Line Charge Breaking Current

31.5A

Rated Operation Sequence

O-0.3s-CO-180s-CO

Opening Time

30±3ms

Closing Time

75±8ms

Close-Open Time

45~60ms

Main Loop Resistance

≤40µΩ

SF6 Gas Annual Leakage Rate

≤0.5%

Mechanical Life

10000 times

Radio Interference Level

≤500µV

Weight of SF6 Gas

10kg

Weight of Circuit Breaker

1800kg

Outer Casing Protection Class

IP4X

Auxiliary Loop Voltage

AC220V/DC220V/DC110V

Motor Voltage

AC220V/DC220V/DC110V

145kV Outdoor HV SF6 AC Circuit Breaker



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