Apparatus and method for ground fault monitoring

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United States of America

PATENT NO 12158508
APP PUB NO 20240219479A1
SERIAL NO

18148506

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Abstract

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An apparatus for ground fault monitoring comprises a voltage bus, a high resistance midpoint grounding (HRMG) current limiting circuit, and a ground fault sense circuit. The voltage bus comprises a first and second voltage bus lines. The HRMG current limiting circuit comprises first and HRMG resistors. The HRMG current limiting circuit also comprises a positive sense resistor coupled across the base and emitter terminals of a first transistor and a negative sense resistor coupled across the base and emitter terminals of a second transistor. The ground fault sense circuit is configured to generate a ground fault signal indicative of a ground fault condition existing between the voltage bus and a common ground node.

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Patent Owner(s)

Patent OwnerAddress
ASTEC INTERNATIONAL LIMITEDKWUN TONG KOWLOON

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Begino,, III John Faustino Boqueo Pasig, PH 9 19
Neri, Nathaniel Franco Taguig, PH 11 10

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