Title:
ELECTRONIC CIRCUIT BREAKER
Document Type and Number:
WIPO Patent Application WO/2015/075815
Kind Code:
A1
Abstract:
In this electronic circuit breaker, a first changeover switch (5), the opening/closing timing of which is controlled by a control signal from a microcomputer (6), is connected in series between the following: a current transformer (1) that detects the current flowing through a main circuit; and a rectification circuit (2) that rectifies the secondary output from said current transformer (1). A signal outputted by the current transformer (1) and a test signal outputted from a test-signal output circuit (11) are inputted to the rectification circuit (2) in an alternating manner, providing this electronic circuit breaker with self-diagnostic functionality in which operation tests can be performed automatically and at regular intervals without interrupting the supply of power to a load.
Inventors:
TAKIGAWA YUSUKE (JP)
NOMURA TOSHIMITSU (JP)
NOMURA TOSHIMITSU (JP)
Application Number:
PCT/JP2013/081531
Publication Date:
May 28, 2015
Filing Date:
November 22, 2013
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
G01R31/327; G01R31/333
Foreign References:
| JP2010284057A | 2010-12-16 | |||
| JP2010277769A | 2010-12-09 | |||
| JP2007220382A | 2007-08-30 | |||
| JPH09166634A | 1997-06-24 | |||
| JP2000261951A | 2000-09-22 |
Other References:
See also references of EP 3073281A4
Attorney, Agent or Firm:
OIWA Masuo et al. (JP)
Masuo Oiwa (JP)
Masuo Oiwa (JP)
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