DC CIRCUIT BREAKER PROVIDED WITH AN OVERCURRENT ELECTRONIC TRIP UNIT AND METHOD FOR CONTROLLING A DC CIRCUIT BREAKER

DC CIRCUIT BREAKER PROVIDED WITH AN OVERCURRENT ELECTRONIC TRIP UNIT AND METHOD FOR CONTROLLING A DC CIRCUIT BREAKER

Disclosed is a DC circuit breaker 14 including at least one contact 16 configured to be coupled between a source of DC power and a DC load and a method of controlling the closed and open state of the contact 16. The DC circuit breaker 14 includes a thermomagnetic trip circuit 18 and an electronic tr...

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Hauptverfasser: BERGER, Maxime, LAVERTU, Carl
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
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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creator BERGER, Maxime
LAVERTU, Carl
description Disclosed is a DC circuit breaker 14 including at least one contact 16 configured to be coupled between a source of DC power and a DC load and a method of controlling the closed and open state of the contact 16. The DC circuit breaker 14 includes a thermomagnetic trip circuit 18 and an electronic trip circuit 32. The electronic trip circuit 32 is responsive to a sensed level of DC current flowing in the contact 16 in a closed state for accumulating an indication of the total time the DC current is sensed. The accumulated indication of the total time the DC current is sensed is compared to a predetermined value or level and, in response to the accumulated indication exceeding the predetermined value or level, the contact 16 is caused to switch from a closed state to an open state.
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The DC circuit breaker 14 includes a thermomagnetic trip circuit 18 and an electronic trip circuit 32. The electronic trip circuit 32 is responsive to a sensed level of DC current flowing in the contact 16 in a closed state for accumulating an indication of the total time the DC current is sensed. 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subjects BASIC ELECTRIC ELEMENTS
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRIC SWITCHES
ELECTRICITY
EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
EMERGENCY PROTECTIVE DEVICES
GENERATION
RELAYS
SELECTORS
title DC CIRCUIT BREAKER PROVIDED WITH AN OVERCURRENT ELECTRONIC TRIP UNIT AND METHOD FOR CONTROLLING A DC CIRCUIT BREAKER
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