High Voltage SF6 Circuit Breaker

Summary of High Voltage SF6 Circuit Breaker:
This product is based on the technology of LW36A/B-72.5/126/145, developed by Xi'an HV Electrical Apparatus Institute and HEAG group. It absorbs experiences and technics in similar product manufacturing and perfected as a new generation of self-evolving SF6 HV circuit breaker. LW36A/B-72.5/126/145 is used to control and protect circuit in 72.5/126/145kV and AC 50/60Hz power system. It is SF6 insulation with CT30 spring operation mechanism.

Technical Specification of High Voltage SF6 Circuit Breaker:

Spring Operating Mechanism of High Voltage SF6 Circuit Breaker:
Diagram A: After circuit breaker is closed, the close and open spring store energy, inside crutch arm and outside crutch arm be ar moment from anti-clockwise, once the opening winding electrified, the lock releases and rotate in anti-clockwise driving by open spring, and inside crutch arm open circuit breaker. The moment is locked up by keeping engine and engine under opening state. (On diagram B) 
Diagram B: When spring mechanism is opening, close spring storage, ratchet wheel axis bear moment from opening spring in anti-clockwise, the moment is locked up by holding engine and opening engine. When opening winding electrified, the cam and ratchet wheel connected with clocking devices re lease. The cam driving by close spring in anti-clockwise, and its moment depresses open spring as to open the circuit breaker. 
Diagram C: As the circuit breaker finished with closing, close spring is releasing, (as that in diagram A) the pawl axis connects with motor by gear. The motor start up instantly and open spring store energy.

Outline Dimension of High Voltage SF6 Circuit Breaker:

Arc Extinguishing Principle of High Voltage SF6 Circuit Breaker:

Ambient Condition of High Voltage SF6 Circuit Breaker:
1. Altitude: 1000m (high-altitude is of particular order);
2. Ambient temperature: -25℃ ~+40℃ (under -25℃ is of particular order);
3. Maximum wind speed: 42.2m/s;
4. Earthquake intensity: 8 degree;
5. Pollution degree: III (25kV/mm), IV (31kV/mm)

Product Feature of High Voltage SF6 Circuit Breaker:
1. Arc-extinguish chamber is of good breaking performance;
2. Long electrical life and high insulating capability;
3. Dependable mechanical and litter maintenance;
4. Low noise pollution;
5. Simple installation and debugging;
6. Dependable air-proof feature;
7. Long mechanical life and long term of maintenance free;
8. Safe and reliable operation.

Certifications:

Cooperation Projects:

Company Pict:

Huayi Electric Co., Ltd. is the core subsidiary of Huayi Elec. Apparatus Group Co., Ltd. In 2007, It became the first ShangHai Stock Exchange (SSE) listed electric company in WenZhou. The company has more than 1,500 employees, of these 30 percent is engineers. It has 7 core subsidiaries and 4 divisions. It focuses on two main industries: wind energy and electric apparatus. Huayi Electric Co., Ltd has created a complete marketing network to cover the business of State Grid Corporation, five power generation Groups, chemical, petroleum, railways, industries and manufacturing. It as well has established perfect worldwide marketing channels and after-sales service system in Europe, Asia, Africa, America, and Oceania.

Main Products List:
1. Wind Turbines 
2. Switchgear Panels
3. High Voltage Components
4. Instrument & Protection Systems
5. Instrument Transformers & Accessories
6. Outdoor Power Transmission & Distribution Systems
Sample & OEM & ODM is OK. 
More information pls kindly visit our website: 
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http://heag.en.china.cn/