DEVICE FOR PROTECTION AGAINST INFLUENCE OF ASYNCHRONOUS MOTOR REVERCE ENERGETIC FLOW TO A POINT OF SHORT-CIRCUIT IN A POWER CABLE

摘要

A device for protection against influence of reverse energetic flow of an asynchronous motor to a point of short-circuit in a power cable comprises a connection circuit for a phase winding of motor stator into a three-phase circuit, wherein in series to every phase winding a normally closed contact of executive switching apparatus is connected; to input of which a respondent member output is connected. The said member is in series connected between asynchronous motor metal housing and diode cathode, anode is connected to stabilizer anode. The device comprises three resistors which are connected to input stator terminals of first, second and third phases. Second terminals are connected to one another and connected to cathode of a stabilitron.