Title:
【発明の名称】故障したブリッジ電力整流器の検出及び分離回路並びにそれを用いた電気システム
Document Type and Number:
Japanese Patent JPH10513034
Kind Code:
A
Abstract:
A protection circuit for a bridge rectifier having a plurality of ac inputs coupled to a plurality of line voltages, and a dc output, comprises monitoring circuits coupled to the line voltages for monitoring the line voltages and generating sequential line-to-line voltage signals, conduction circuits coupled to the monitoring circuits for conducting that portion of each of the sequential line-to-line voltage signals having a given polarity, the conducting circuits generating sequential half wave voltage signals having a given polarity magnitude, and discriminating circuits coupled to the conducting circuits for discriminating a faulted rectifier by monitoring the given polarity magnitude of each of the sequential half wave voltage signals. The discriminating circuits generate a protection signal in response to one of the magnitudes of the sequential half wave voltages signals being less than a threshold.
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Inventors:
Kramer, Kenneth See
Baker, Roy Sydney
Baker, Roy Sydney
Application Number:
JP51386396A
Publication Date:
December 08, 1998
Filing Date:
December 15, 1994
Export Citation:
Assignee:
Sandstrand Corporation
International Classes:
H02H3/10; H02H3/14; H02H3/16; H02H3/20; H02H3/24; H02H3/347; H02H7/122; H02H7/125; H02H3/08; (IPC1-7): H02H3/08; H02H3/10; H02H3/14; H02H3/16; H02H3/20; H02H3/24; H02H3/347; H02H7/122; H02H7/125
Attorney, Agent or Firm:
Soga Doteru (6 people outside)