JPH0411477U - - Google Patents
Info
- Publication number
- JPH0411477U JPH0411477U JP5291590U JP5291590U JPH0411477U JP H0411477 U JPH0411477 U JP H0411477U JP 5291590 U JP5291590 U JP 5291590U JP 5291590 U JP5291590 U JP 5291590U JP H0411477 U JPH0411477 U JP H0411477U
- Authority
- JP
- Japan
- Prior art keywords
- phase
- open
- detection circuit
- photocoupler
- alternating current
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001514 detection method Methods 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
Landscapes
- Emergency Protection Circuit Devices (AREA)
- Measurement Of Current Or Voltage (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5291590U JPH0411477U (de) | 1990-05-21 | 1990-05-21 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5291590U JPH0411477U (de) | 1990-05-21 | 1990-05-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0411477U true JPH0411477U (de) | 1992-01-30 |
Family
ID=31573635
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5291590U Pending JPH0411477U (de) | 1990-05-21 | 1990-05-21 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0411477U (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001235504A (ja) * | 2000-02-23 | 2001-08-31 | Kawamura Electric Inc | 漏電・欠相判別測定器 |
JP2011135752A (ja) * | 2009-12-25 | 2011-07-07 | Japan Aviation Electronics Industry Ltd | 欠相検出回路および欠相検出方法 |
-
1990
- 1990-05-21 JP JP5291590U patent/JPH0411477U/ja active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001235504A (ja) * | 2000-02-23 | 2001-08-31 | Kawamura Electric Inc | 漏電・欠相判別測定器 |
JP4548753B2 (ja) * | 2000-02-23 | 2010-09-22 | 河村電器産業株式会社 | 漏電・欠相判別測定器 |
JP2011135752A (ja) * | 2009-12-25 | 2011-07-07 | Japan Aviation Electronics Industry Ltd | 欠相検出回路および欠相検出方法 |