EARTH PROTECTION DEVICE SENSITIVE TO ARC CURRENTS, TRIP DEVICE AND CIRCUIT BREAKER COMPRISING SUCH A DEVICE

EARTH PROTECTION DEVICE SENSITIVE TO ARC CURRENTS, TRIP DEVICE AND CIRCUIT BREAKER COMPRISING SUCH A DEVICE

The earth protection device comprises an input to receive a first signal (IG1) representative of an earth fault current, first signal processing means (5), and means (6) for processing protection functions connected to the first signal processing means. The device comprises second signal processing...

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Hauptverfasser: SUPTITZ, ERIC, BLANCHARD, PIERRE
Format: Patent
Sprache:eng ; fre
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 SUPTITZ, ERIC
BLANCHARD, PIERRE
description The earth protection device comprises an input to receive a first signal (IG1) representative of an earth fault current, first signal processing means (5), and means (6) for processing protection functions connected to the first signal processing means. The device comprises second signal processing means (12) to process the first signal (IG1) connected between said input and the first signal processing means (5), said second signal processing means supplying to the first signal processing means a second signal (IG2) representative of an earth fault current having on decrease a gradient lower than a preset gradient limiting value (L). The device can be integrated in electronic trip devices or circuit breakers.
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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 EARTH PROTECTION DEVICE SENSITIVE TO ARC CURRENTS, TRIP DEVICE AND CIRCUIT BREAKER COMPRISING SUCH A DEVICE
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