High Power Three Phase Resistance System Limit The Short Circuit Rotor Current

Fullde fngr10.5kv-1000a-5.77ω-10s-IP23 Fixed Resistor Generator

Introduction of the crowbar resistor:

Crowbar resistors are three phase resistance banks which are connected to the rotor windings of the DFIG (Doubly-Feed Induction Generator) such as wind power generator.

The crowbar resistors should be high enough to limit the short circuit rotor current and also they should be low enough to avoid too high voltage in the rotor circuit. The crowbar resistor should be designed with low inductance and capable of handling very high currents for short periods.

Power parts with in the Inverter can be damaged as a result of over voltages power supply failures or other faults. Therefore an extensive protection system should be there to reduce the likelihood of damage to the inverter. For this reasons Each Thyristor Control Cabinet (TCC) is provided with a built in protection system called IPS (Inverter Protection System).

Typical Products:

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.