FIELD: electrical equipment.
SUBSTANCE: invention relates to the electrical equipment. Electric machine (2) includes rotor (4) of electric machine (2) containing braking element (16) and unlocking device (14). At that, torque limit coupling (12) is made with possibility to be opened by means of braking element (16) unblocking. Brake element (16) is released from rotor (4) after unlocking. Unlocking device comprises a band, which in case of failure attenuates the brake element disconnecting from the rotor and providing the braking moment, which is perceived by the coupling of the limiting moment disconnecting the faulty electric machine.
EFFECT: improved operational safety.
12 cl, 7 dwg
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