SWITCHGEAR FOR DISTRIBUTING ELECTRIC POWER

PROBLEM TO BE SOLVED: To provide a switchgear for distributing electric power capable of protecting from ground fault across the entire load side, that includes a circuit breaker for widened protection range, and of improving the reliability. SOLUTION: A circuit breaker 11, a current transformer 12...

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Bibliographic Details
Main Authors KAWAMURA YASUHIRO, MASUHARA HIDEKI, SHIBATA EKIZO
Format Patent
LanguageEnglish
Published 23.03.2006
Subjects
BOARDS, SUBSTATIONS, OR SWITCHING ARRANGEMENTS FOR THE SUPPLYOR DISTRIBUTION OF ELECTRIC POWER
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
GENERATION
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Summary:PROBLEM TO BE SOLVED: To provide a switchgear for distributing electric power capable of protecting from ground fault across the entire load side, that includes a circuit breaker for widened protection range, and of improving the reliability. SOLUTION: A circuit breaker 11, a current transformer 12 and a zero-phase-sequence current transformer 10 are arranged in series, to constitute units which are mounted on a truck 14 and stored in a reception/distribution board 1. A distribution opening/closing unit 9 can be connected/disconnected to/from a power-supply side conductor 20 and load-side conductors 33 and 34. The zero-phase-sequence current transformer 10 is arranged on the power supply side of the circuit breaker 11. COPYRIGHT: (C)2006,JPO&NCIPI
Bibliography:Application Number: JP20050012501