Title:
CIRCUIT BREAKER, PROTECTIVE RELAY, CIRCUIT BREAKING METHOD AND CIRCUIT BREAKING PROGRAM
Document Type and Number:
Japanese Patent JP2016039089
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To prevent unnecessary trip due to an in-rush current, without increasing the rated current of a circuit breaker.SOLUTION: A circuit breaker 1 includes an interrupting section 11 for interrupting power supply according to control, and a control section 12 where a first threshold having a reference period of power supplied consisting of a first half period and a second half period and larger than the rated value of a current in the power supplied, and a second threshold larger than the first threshold are determined, and when a value exceeding the second threshold is detected in the first half period, but a value exceeding the first threshold is not detected in the second half period, in the absolute value of current, the interrupting section 11 is controlled not to be interrupted.SELECTED DRAWING: Figure 1
More Like This:
Inventors:
SATO ATSUSHI
MORII NOBUYUKI
MORII NOBUYUKI
Application Number:
JP2014163018A
Publication Date:
March 22, 2016
Filing Date:
August 08, 2014
Export Citation:
Assignee:
NTT FACILITIES INC
International Classes:
H01H83/02; H01H9/54
Domestic Patent References:
| JP2003317598A | 2003-11-07 | |||
| JP2014199718A | 2014-10-23 |
Attorney, Agent or Firm:
Shiga International Patent Office