Tripping driving circuit of residual current circuit breaker

The utility model relates to a tripping driving circuit of a residual current circuit breaker, which comprises a first unidirectional silicon controlled thyristor and a second unidirectional silicon controlled thyristor. A control electrode of the first unidirectional silicon controlled thyristor is...

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Bibliographic Details
Main Authors ZHAO JIANNING, ZHU RUWEI, HUANG SHAOMAO
Format Patent
LanguageChinese
English
Published 26.05.2010
Subjects
BASIC ELECTRIC ELEMENTS
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRIC SWITCHES
ELECTRICITY
EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
EMERGENCY PROTECTIVE DEVICES
GENERATION
RELAYS
SELECTORS
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Summary:The utility model relates to a tripping driving circuit of a residual current circuit breaker, which comprises a first unidirectional silicon controlled thyristor and a second unidirectional silicon controlled thyristor. A control electrode of the first unidirectional silicon controlled thyristor is used for being connected with a tripping control signal output end of a central control unit, a positive electrode of the first unidirectional silicon controlled thyristor is used for being connected with a current output end of a tripper coil after being serially connected with a current limiting resistor, a negative electrode of the second unidirectional silicon controlled thyristor is connected with the positive electrode of the first unidirectional silicon controlled thyristor, a positive electrode of the second unidirectional silicon controlled thyristor is used for being connected with the current output end of the tripper coil, and a control electrode of the second unidirectional silicon controlled thyristo
Bibliography:Application Number: CN20092162193U