Transformation of the Electrical Transmission System of the Mine Main Shaft Elevator
The transmission system of the 50 row main shaft hoist in the third mining area of Jinchuan Group Co.,Ltd.adopts the medium voltage AC-DC-AC variable frequency drive control method.The main drive frequency converter uses ABB's ACS6000 medium voltage AC-DC-AC frequency converter,matched with a 4500KW low-speed direct connected AC synchronous motor.The original transmission system only has one set of frequency converters.Through renovation,redundant control of the main transmission device and supporting equipment of the main shaft hoist has been achieved,improving the system's guarantee capability.
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