Electricity: motive power systems – Motor-reversing – Armature or primary circuit control
Patent
1985-12-05
1988-09-27
Shoop, Jr., William M.
Electricity: motive power systems
Motor-reversing
Armature or primary circuit control
318439, 318139, 318345R, 318282, 307122, 307146, H02P 100
Patent
active
047744430
ABSTRACT:
A driving mechanism, preferably provided for a high-voltage isolating switch (T), contains a driving motor (M) which acts upon a moving contact of the switch via a shaft (W) and is provided with a rotor winding (R) and a stator winding (S), connected in series. To control a direction of rotation of the driving motor (M) in dependence on the position of the switch, the driving mechanism also contains a control circuit. In this driving mechanism, it is intended to keep the number of cores of a connecting cable (L) from the driving mechanism housing (K) to a control cabinet (N) as small as possible. This is achieved by means of a control circuit having a rectifier (G) which can be controlled in dependence on the position of the switch and one alternating-current input of which is preceded by either the stator (S) or the rotor winding (R) of the driving motor (M) and the direct-current output of which is connected to the winding (for example rotor winding R) located in series with the preceding winding (for example stator windings S) of the driving motor (M).
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BBC Brown Boveri & Company Ltd.
Ip Paul
Shoop Jr. William M.
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