JPS5449550A - Current transformer protecting device - Google Patents
Current transformer protecting deviceInfo
- Publication number
- JPS5449550A JPS5449550A JP11625877A JP11625877A JPS5449550A JP S5449550 A JPS5449550 A JP S5449550A JP 11625877 A JP11625877 A JP 11625877A JP 11625877 A JP11625877 A JP 11625877A JP S5449550 A JPS5449550 A JP S5449550A
- Authority
- JP
- Japan
- Prior art keywords
- current transformer
- electrode
- terminals
- protecting device
- metal wire
- 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
Abstract
PURPOSE: To provide the subject device wherein a discharge gap is used as a protecting device, whereby any abnormal voltage caused by the opening trouble of a secondary circuit of the current transformer is suppressed and simultaneously the secondary circuit of the current transformer is short-circuited accurately protect the current transformer.
CONSTITUTION: The fitting terminals 30 and 31 of the protecting device are connected to the secondry terminals 4 and 5 of the current transformer. By opening the secondary circuit an abnormal voltage is generated between the terminals 4 and 5. This voltage is discharged in the discharge gap formed by a movable electrode 13 and a fixed electrode 14. By the discharge energy generated upon this occasion the temperature of a solder 22 joining the electrode 13 and a metal wire 15 to the movable electrode 13 is increased to release the fixture of the metal wire 15. For this reason, a coil spring 16 which has accumulated energy by the tension of the metal wire 15 tends to be restored to its original position. Hence, the electrode 13 is moved toward the electrode 14, and both electrodes are brought into contact with each other to short-circuit the terminals 4 and 5 by the protecting device
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11625877A JPS5449550A (en) | 1977-09-27 | 1977-09-27 | Current transformer protecting device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11625877A JPS5449550A (en) | 1977-09-27 | 1977-09-27 | Current transformer protecting device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5449550A true JPS5449550A (en) | 1979-04-18 |
Family
ID=14682644
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11625877A Pending JPS5449550A (en) | 1977-09-27 | 1977-09-27 | Current transformer protecting device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5449550A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5706161A (en) * | 1993-09-29 | 1998-01-06 | Adam; Russell William | Open circuit protection device |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4913153B1 (en) * | 1970-09-16 | 1974-03-29 |
-
1977
- 1977-09-27 JP JP11625877A patent/JPS5449550A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4913153B1 (en) * | 1970-09-16 | 1974-03-29 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5706161A (en) * | 1993-09-29 | 1998-01-06 | Adam; Russell William | Open circuit protection device |
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