Title:
Earth leakage breaker
Document Type and Number:
Japanese Patent JP6105643
Kind Code:
B2
Abstract:
Disclosed is an earth leakage circuit breaker. The earth leakage circuit breaker is capable of determining an earth leakage signal applied thereto with high accuracy, by performing a trip operation by determining noise components included in the earth leakage signal, such as switching noise or harmonics, based on a determination signal generated by tracking the earth leakage signal. The earth leakage circuit breaker is capable of precisely determining whether to perform a trip operation with respect to an earth leakage signal applied thereto. The earth leakage circuit breaker is capable of preventing a malfunction due to a noise signal similar to an earth leakage signal.
Inventors:
Song Jung Kuk
Application Number:
JP2015000647A
Publication Date:
March 29, 2017
Filing Date:
January 06, 2015
Export Citation:
Assignee:
LSIS CO.,LTD.
International Classes:
H01H83/02; G01R31/02; H01H33/59; H02H3/347
Domestic Patent References:
| JP61154422A | ||||
| JP61161921A | ||||
| JP2010244793A | ||||
| JP2004354173A | ||||
| JP2002098728A | ||||
| JP2000102158A | ||||
| JP2004220859A |
Attorney, Agent or Firm:
Atsushi Aoki
Jun Tsuruta
Tomohiro Minamiyama
Akira Kawai
Kenichi Nakamura
Jun Tsuruta
Tomohiro Minamiyama
Akira Kawai
Kenichi Nakamura
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