Three Phase Basic Electrical Components Self - Extinguishing Circuit Breaker

Product Description and Application

* Outdoor self-contained power high voltage SF6 circuit breaker is suitable for the electric power system of Ac 50Hz and 252kV, which is the control and protection equipment for the electric power system, as well as for circuit breaker connection.

* The product uses SF6 gas as the arc extinguishing and insulation medium, adopting the self-contained power arc extinguishing double-action-type interrupter structure technique, equipped with new-type spring operating mechanism., with features of strong switching ability, less operating power, and higher reliability, the technical indicators have reached similar products in domestic and international advanced level.

* Single phase SF6 circuit breaker, which is operated by one mechanism for one pole, is changed to three-phase mechanical linkage circuit breaker which is operated by one mechanism. The decrease of mechanism improves the linkage reliability for three-phase SF6 circuit breaker to avoid lack of phase operation.

Key Features:

* Adopting the self-contained power arc extinguishing and double-action-type structure technique;

* This products has less operating power ,high reliability and mechanical endurance up to 6,000 times;

*Dynamic and static contact using copper tungsten arc overall sintered structure, withstand high temperature, under the arc burning in a small, full breaking capacity of more than 20 times;

* Reliable sealing performance: it is guaranteed that the SF6 gas has an annual leakage of far less than 0.5 percent;

* Strict dehumidification process for component parts of the product:the SF6 moisture content is far lower than similar products;

* The circuit breaker has high insulation level and the creepage distance is more than 25mm/kV, 31 mm/kV;

* The valve plate of the arc extinguishing compartment is made of new-type light weight Zinc-base alloy.compared with the traditional materials adopted for similar products,this material has more stable and reliable gas feature and breaking performance.

* The nozzle is made of import PTFe mixed with other micro-components.It has stable breaking performance and strong ablation resistance;

* Electrical units in secondary circuit and SF6 density relay are hign-quality import or joint-venture products;

* The important component parts in the mechanism are forged with quality alloy steel for high strength and abrasion resistant, which can ensure low fault rate under frequent operation of the breaker.

* The hydraulic spring operation mechanism for three phase SF6 circuit breaker is swift. And it has good load property and low noise. Its speed is easy to adjust. Besides it adopts modular construction so that it has high reliability and is easy to maintain.

The main specifications of the breaker

Guangdong Fullde Electrical Technology Co.,Ltd, is the leading manufacturer with more than 11 years experience, which locates in China fashion city – Humen Town, Dongguan city, and near by the High-speed rail station, registered capital of 25 million yuan, a wholly owned subsidiary  of Hunan FULLDE Electric Co., Ltd. the registered capital of 50 million yuan, covers an area of 68 acres.

The company mainly produces the railroad locomotive braking system, the ship intelligent test load system, the power system neutral grouding protection device and the complete system, the ultra-high voltage AC and DC filter system, flexible DC start system, wind power low voltage through the protection system and other new intelligent braking system. These products are widely used in aerospace, wind power, industrial frequency, state grid, railway, shipbuilding, military, new energy vehicles, data centre etc other national strategic emerging industries core areas.

Many famous company still kept the long-team business strategy relationship with Fullde, such as: State grid, CRRC, China mobile, China Unicom, Chinese navy, China Shipbuilding Heavy Industries etc.

Fullde has more than ten years in the field of brake system research and development experience of the project team.

Products mainly exported to Southeast Asia, Africa, North & South America. Fullde has been recognized in the industry as the symbol of high quality providers in China.