Elevator control system

Details Elevator control system Elevator control system

1975-08-06

1978-05-02

Schaefer, Robert K.

Elevator, industrial lift truck, or stationary lift for vehicle

Stationary lift for roadway vehicle or required component...

Having specific drive means for support

318250, H02K 2728

Patent

active

040869830

ABSTRACT:
A direct current motor for an elevator car includes an armature and an interpole winding or a series field winding serially connected to the armature and controlled by a static Ward-Leonard device. A filter includes the interpole or series field winding and a series combination of a capacitor, a resistor, a reactor and a fuse with or without a series reactor.

REFERENCES:
patent: 1966077 (1934-07-01), Nyman

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