Inconsistent protection circuit of circuit breaker body three -phase

Inconsistent protection circuit of circuit breaker body three -phase

The utility model provides an inconsistent protection circuit of circuit breaker body three -phase, including actuation circuit, export return circuit and power, actuation circuit connects between power supply polarity, actuation circuit is including the combined floodgate normally open contact grou...

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1. Verfasser: Zhu Yingqin
Format: Patent
Sprache:chi ; eng
Schlagworte:
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
GENERATION
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creator Zhu Yingqin
description The utility model provides an inconsistent protection circuit of circuit breaker body three -phase, including actuation circuit, export return circuit and power, actuation circuit connects between power supply polarity, actuation circuit is including the combined floodgate normally open contact group that establishes ties in proper order, separating brake normally closed contact group and time relay KT, combined floodgate normally open contact group is by three -phase combined floodgate normally open contact QF1A, QF1B, QF1C is parallelly connected to form, separating brake normally closed contact group is by three -phase separating brake normally closed contact QF2A, QF2B, QF2C is parallelly connected to form, the export return circuit including export auxiliary relay ZJ and with the time relay KT's of export auxiliary relay ZJ series connection normally open contact KT1A, connect in parallel at the time relay KT both ends in the export return circuit. The utility model discloses parallelly connected to its
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subjects CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
GENERATION
title Inconsistent protection circuit of circuit breaker body three -phase
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