JPS6412489A - Deterioration diagnostic method for zinc oxide type arrestor - Google Patents
Deterioration diagnostic method for zinc oxide type arrestorInfo
- Publication number
- JPS6412489A JPS6412489A JP16940387A JP16940387A JPS6412489A JP S6412489 A JPS6412489 A JP S6412489A JP 16940387 A JP16940387 A JP 16940387A JP 16940387 A JP16940387 A JP 16940387A JP S6412489 A JPS6412489 A JP S6412489A
- Authority
- JP
- Japan
- Prior art keywords
- phase
- currents
- respective phases
- generator
- arrester
- 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)
Abstract
PURPOSE:To make an arrester on a phase of a deteriorated element specifiable inexpensively and simply by determining a synthetic wave form of only resistance component currents on respective phases in a three-phase arrester and superposing this synthetic wave and a reverse polarity wave so as to specify a phase of the deteriorated arrester. CONSTITUTION:Arresters 21 to 23 are connected with respective phases 11 to 13, and their earth sides are earthed commonly through a current detector 44, and besides a superposed current generator 55 is connected with a secondary side of a voltage transformer 50 connected with the respective phases 11 to 13, with a switch 54 in between. Capacitor component currents included into the currents on the respective phases 11 to 13 are erased to determine a synthetic wave form of only resistance component currents in the detector 44. A conductor 55a on an output side of the generator 55 is also made to penetrate into an iron core of this detector 44. When the switch 54 is closed, respective phase voltages obtained on secondary conductors 51 to 53 of the transformer 50 are fetched in the form of reverse polarities into the generator 55, and consequently currents, which are identical in their wave forms with the current on a deterioration level and reverse in their polarities to the currents on the respective phases, are supplied in phase order to the generator 55. Accordingly the deterioration phase can be specified by the operation of the switch 54.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16940387A JPS6412489A (en) | 1987-07-07 | 1987-07-07 | Deterioration diagnostic method for zinc oxide type arrestor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16940387A JPS6412489A (en) | 1987-07-07 | 1987-07-07 | Deterioration diagnostic method for zinc oxide type arrestor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6412489A true JPS6412489A (en) | 1989-01-17 |
Family
ID=15885955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16940387A Pending JPS6412489A (en) | 1987-07-07 | 1987-07-07 | Deterioration diagnostic method for zinc oxide type arrestor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6412489A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02238378A (en) * | 1989-03-13 | 1990-09-20 | Meidensha Corp | Monitoring device of deterioration of zinc oxide type arrester |
| CN103063940A (en) * | 2012-10-24 | 2013-04-24 | 李永祥 | Zinc oxide nonlinear resistor characteristic equation and equation constant determination method |
| CN103592502A (en) * | 2013-11-28 | 2014-02-19 | 国家电网公司 | MOA resistive current and CT capacitive current joint monitoring system |
-
1987
- 1987-07-07 JP JP16940387A patent/JPS6412489A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02238378A (en) * | 1989-03-13 | 1990-09-20 | Meidensha Corp | Monitoring device of deterioration of zinc oxide type arrester |
| CN103063940A (en) * | 2012-10-24 | 2013-04-24 | 李永祥 | Zinc oxide nonlinear resistor characteristic equation and equation constant determination method |
| CN103592502A (en) * | 2013-11-28 | 2014-02-19 | 国家电网公司 | MOA resistive current and CT capacitive current joint monitoring system |
| CN103592502B (en) * | 2013-11-28 | 2016-09-28 | 国家电网公司 | MOA current in resistance property and CT capacity current combination monitoring system |
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