JPS554522A - Equivalent testing apparatus of fuse and the like - Google Patents
Equivalent testing apparatus of fuse and the likeInfo
- Publication number
- JPS554522A JPS554522A JP7663878A JP7663878A JPS554522A JP S554522 A JPS554522 A JP S554522A JP 7663878 A JP7663878 A JP 7663878A JP 7663878 A JP7663878 A JP 7663878A JP S554522 A JPS554522 A JP S554522A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- fuse
- phase
- current
- rectifying element
- 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
Landscapes
- Testing Electric Properties And Detecting Electric Faults (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
PURPOSE: To reduce the number of rectifying elements and simplify circuit constitution by using a switch having current limiting action at the cutoff.
CONSTITUTION: When a switch 21 is closed at the time t1, short-circuit cureent Ib flows through the rectifying element 24b on the V phase side as the V phase voltage is higher than U puase voltage. Upon reaching of the time tB after this, the W phase voltage also becomes higher than the U phase voltage and short-circuit current Ic flows from the rectifying element 24c of the W phase side as well. And even after the cutoff of a fuse 22, the recovery voltage of crest type waveform is supplied, whereby the testing current and voltage equivalent to the current and voltage applied to the protecting fuse of the rectifying element having caused flashover when a 3-phase fullwave rectifier is packaged may be applied to the test fuse 22.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7663878A JPS554522A (en) | 1978-06-24 | 1978-06-24 | Equivalent testing apparatus of fuse and the like |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7663878A JPS554522A (en) | 1978-06-24 | 1978-06-24 | Equivalent testing apparatus of fuse and the like |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS554522A true JPS554522A (en) | 1980-01-14 |
Family
ID=13610910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7663878A Pending JPS554522A (en) | 1978-06-24 | 1978-06-24 | Equivalent testing apparatus of fuse and the like |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS554522A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5981983A (en) * | 1982-10-31 | 1984-05-11 | Nec Home Electronics Ltd | Magnetic recording and reproducing device |
| JPH0549407B2 (en) * | 1982-05-10 | 1993-07-26 | Daito Seiki | |
| WO2012149835A1 (en) * | 2011-05-04 | 2012-11-08 | 北京荣科恒阳整流技术有限公司 | Method for detecting fuse status of high-current rectifier device |
| WO2016093094A1 (en) * | 2014-12-12 | 2016-06-16 | 株式会社明電舎 | Direct-current interruption device |
-
1978
- 1978-06-24 JP JP7663878A patent/JPS554522A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0549407B2 (en) * | 1982-05-10 | 1993-07-26 | Daito Seiki | |
| JPS5981983A (en) * | 1982-10-31 | 1984-05-11 | Nec Home Electronics Ltd | Magnetic recording and reproducing device |
| JPH0216635B2 (en) * | 1982-10-31 | 1990-04-17 | Nippon Denki Hoomu Erekutoronikusu Kk | |
| WO2012149835A1 (en) * | 2011-05-04 | 2012-11-08 | 北京荣科恒阳整流技术有限公司 | Method for detecting fuse status of high-current rectifier device |
| WO2016093094A1 (en) * | 2014-12-12 | 2016-06-16 | 株式会社明電舎 | Direct-current interruption device |
| JP2016115502A (en) * | 2014-12-12 | 2016-06-23 | 株式会社明電舎 | Dc interruption device |
| CN107004533A (en) * | 2014-12-12 | 2017-08-01 | 株式会社明电舍 | Direct current interrupts equipment |
| US10256622B2 (en) | 2014-12-12 | 2019-04-09 | Meidensha Corporation | Direct-current interruption device |
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