Title:
CONTROLLER OF SWITCHGEAR
Document Type and Number:
Japanese Patent JPS6348117
Kind Code:
A
Abstract:
The invention relates to an arrangement for influencing, particularly blocking, a switching apparatus, preferably a remotely controlled switching apparatus, in dependence on mains condition data by means of feeding in an external voltage and a subsequent evaluating circuit with setpoint and actual-value comparison. For the purpose of feeding in the external voltage, an impulse generator for generating test pulses and an evaluating circuit is provided here which determines the peak value of the instantaneous electric power converted in the motor. This allows short circuits, inter-turn shorts and interruptions in the feedline to be detected reliably and rapidly in a motor.
Inventors:
GERUHARUTO TORENKURAA
RAINHARUTO MAIYAA
KURUTO GOOTO
RAINHARUTO MAIYAA
KURUTO GOOTO
Application Number:
JP19362787A
Publication Date:
February 29, 1988
Filing Date:
July 31, 1987
Export Citation:
Assignee:
SIEMENS AG
International Classes:
G01R31/06; G01R31/34; H02H3/00; G01R31/02; H02H11/00; (IPC1-7): G01R31/02; H02H3/00; H02H7/08
Domestic Patent References:
| JPS5952410B2 | 1984-12-19 | |||
| JPS54147441A | 1979-11-17 | |||
| JPS60228971A | 1985-11-14 |
Foreign References:
| EP0149046A2 | 1985-07-24 |
Attorney, Agent or Firm:
Tomimura Kiyoshi
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