Electric door drive (hereinafter referred to as ED) is a device providing movement of the aperture flaps of a complex of automatic station doors located on the platform of the closed type metro stations or in the station partition of the open type. ED is a complex device including stator and rotor of asynchronous motor of AIR71V8 type, housing, connecting flange, braking system housing, electromagnetic brake, braking force adjustment unit, contact block, electromagnetic brake power supply unit. ED functioning is possible both at direct voltage supply to winding terminals and with application of frequency converter.
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