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Description
Please contact us for more information: power@mec.com.cn
The circuit breaker, with rated voltage 72.5-245 kV and breaking current up to 50 kA, satisfies the highest demands. It is based on latest developments in dielectric dimensioning and arc physics research.
For circuit breakers with one breaking element per pole, both modes of operation are possible. For three-pole operation, the circuit breaker poles
and the operating mechanism are linked together with pull rods. On every pole there is an individual opening spring controlled by the pull rod. There is however one exception. In the three-pole operation case there is only one opening spring controlling all three poles and it is mounted on the pole furthest away from the operating mechanism.
Each circuit breaker pole constitutes a sealed SF6 filled unit, which includes the breaking unit, the hollow post insulator and the mechanism housing.
The three poles of the circuit breaker can be mounted on individual pole supports or in the case of the circuit breaker on a common support frame (pole beam).
The operational reliability and the service life of an SF6 circuit breaker is very much dependent on the ability to ensure sealing of the SF6 gas volume and to neutralize the effects of moisture and decomposition products in the gas.
Technical Parameters:
Projects:
Liaoning MEC Group Co., Ltd. is an integrated group company located in the coastal city of Dalian, China. The government owned company was established in 1978 and became a share holding company in 1994. Our group company engages in the business of industrial manufacturing, international trade, logistics, real estate and we also invest in various fields as shareholders of many corporations.
We have over 1,500 employees worldwide. Our average annual turnovers are more than RMB 2,200 millions and the annual volume of import and export amounts to more than USD 250 millions.
As one of the first class power equipment suppliers in China, our product line covers transformer, switchgear, mobile substation, circuit breaker, lightning arrester and other substation & transmission line equipment. Our products have been supplied to many companies all over the world which enjoy high reputations from our customers with high quality and excellent service.
Our Advantages:
Quality Assurance
--From the very beginning, MEC ensures quality in every step to achieve the best quality.
Experience Sharing
--With more than 30 years’ experience in power industry, MEC brings you an optimized solution.
Global Service
--Wherever you are, MEC global network will support and provide you with value.
Quick Response
--In response to your needs without delay, MEC knows the value of your time.
