Stand and overflow relay protection tripping operation circuit after disappearing with DC power supply
The utility model belongs to the technical field of the protection circuit, concretely relates to stand and overflow relay protection tripping operation circuit after disappearing with DC power supply, including charging rectifier module, group battery, current relay and current transformer, current...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The utility model belongs to the technical field of the protection circuit, concretely relates to stand and overflow relay protection tripping operation circuit after disappearing with DC power supply, including charging rectifier module, group battery, current relay and current transformer, current transformer and the transmission line of electric wire netting are connected, and the transmissionline that voltage transformer and electric wire netting are passed through to the charging rectifier module is connected, and the charging rectifier module is charged for the group battery, and current transformer can drive current relay's current relay 1, and the interior electric energy of saving of group battery will drive the separating brake coil work of circuit breaker, with circuit breakercurrent relay 2. When voltage transformer, current transformer normal operation, gain the electric energy through voltage transformer and charge the machine to charging in the group battery through the rectification, when the |
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