FIELD: power industry.
SUBSTANCE: drive has the asynchronous machine (210), operated as the asynchronous motor/generator to control the gate. The machine (210) has the brake (230) with release the brake device. The method contains the following steps in which the emergency closing situation is detected and/or indicated, the brake (230) is released by the release the brake device in the event, when the insufficient power is indicated. The machine (210) is activated by the gravity force of the hydraulic gate shield or the roller gate. The machine (210) is operated automatically, at that the rotating field is formed. The machine (210) is operated in the generating island operating mode, in which the rotating field is generated automatically.
EFFECT: creation of the method and device to control the hydraulic gate or the roller gate drive, which during the emergency shutdown provides the gate shield release passively.
24 cl, 4 dwg
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