Title:
SEPARATOR AND OVERVOLTAGE PROTECTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2008/010495
Kind Code:
A1
Abstract:
A separator satisfying the requirements of passing a lighting surge current,
interrupting a follow current, interrupting short circuit, and being of a small
size. An overvoltage protection device combining the separator with an overvoltage
protector is also provided. The separator comprises a current transformer for
detecting the current flowing through each wire, a section for rectifying a current
outputted from the current transformer, a charging section being charged with
a current outputted from the rectifying section, a switch section for bringing
the wire into a disconnected state at the time of driving, and a trigger section
for driving the switch when the charges stored in the charging section are in a
predetermined drive region. The drive region is set to a region providing charges
larger than the charges which can be stored in the charging section by a lighting
surge current. An overvoltage protection device can be constituted by combining
the separator with an overvoltage protector.
Inventors:
KIJIMA HITOSHI (JP)
SHIBAYAMA MASAO (JP)
SHIBAYAMA MASAO (JP)
Application Number:
PCT/JP2007/064111
Publication Date:
January 24, 2008
Filing Date:
July 17, 2007
Export Citation:
Assignee:
NIKKO ELECTRIC MFG CO LTD (JP)
KIJIMA HITOSHI (JP)
SHIBAYAMA MASAO (JP)
KIJIMA HITOSHI (JP)
SHIBAYAMA MASAO (JP)
International Classes:
H02H3/093; H02H3/347
Foreign References:
| JP2000102158A | 2000-04-07 | |||
| JPS6295433U | 1987-06-18 | |||
| JPS57135836U | 1982-08-24 | |||
| JPS63290122A | 1988-11-28 | |||
| JPH04372519A | 1992-12-25 | |||
| JPH0993790A | 1997-04-04 |
Other References:
See also references of EP 2043216A4
HIROKAZU NAKAJIMA, OHMSHA: "Choose and Use Low-Voltage Breakers", article "How to Choose and Use Breakers and Switchgears", pages: 116 - 121
HIROKAZU NAKAJIMA, OHMSHA: "Choose and Use Low-Voltage Breakers", article "How to Choose and Use Breakers and Switchgears", pages: 116 - 121
Attorney, Agent or Firm:
NAKAO, Naoki et al. (Shinjuku NSO Building1-22, Shinjuku 3-chom, Shinjuku-ku Tokyo 22, JP)
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