JPS55128167A - Leakage current detector - Google Patents
Leakage current detectorInfo
- Publication number
- JPS55128167A JPS55128167A JP3746079A JP3746079A JPS55128167A JP S55128167 A JPS55128167 A JP S55128167A JP 3746079 A JP3746079 A JP 3746079A JP 3746079 A JP3746079 A JP 3746079A JP S55128167 A JPS55128167 A JP S55128167A
- Authority
- JP
- Japan
- Prior art keywords
- output
- leakage current
- lighting
- wave
- lpf4
- 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.)
- Granted
Links
Landscapes
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
- Thermistors And Varistors (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
PURPOSE: To make possible the identification of the deterioration in the lighting arrestor by allowing the detection of only the leakage current through the resistance component in the lighting arrester during the transmission of power.
CONSTITUTION: The voltage waveform is picked up with a detection resistor 3 in series connected to the ground wire of the lighting arrester 2 and shaped in the form by way of an LPF4. On the other hand, the voltage waveform is picked up divided with the combination of the secondary side wire 12 of a transformer for instrumentation provided on the power transmission line 1 and the electrode 13 and differentiated 17 through an LPF16 to form 19 a rectangular wave with a fixed amplitude. Then, the output of the circuit 5 is detected with an aid of the output of circuit 19 and undergoes a half-wave rectification filter 7 to produce the DC output of the current of the lighting arrestor 2. At the same time, the output of the LPF4 undergoes a half-wave recrification filter 10 to produce the DC output. The both DC output is multipled 8 and the result is given to the meter to indicate the value of the leakage current.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3746079A JPS55128167A (en) | 1979-03-26 | 1979-03-26 | Leakage current detector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3746079A JPS55128167A (en) | 1979-03-26 | 1979-03-26 | Leakage current detector |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55128167A true JPS55128167A (en) | 1980-10-03 |
JPS6148669B2 JPS6148669B2 (en) | 1986-10-25 |
Family
ID=12498128
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3746079A Granted JPS55128167A (en) | 1979-03-26 | 1979-03-26 | Leakage current detector |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55128167A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102435897A (en) * | 2011-09-14 | 2012-05-02 | 浙江省电力试验研究院 | Method for filtering online monitoring data of arrester leakage current based on morphological principle |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102854431B (en) * | 2011-07-01 | 2014-11-19 | 上海思盛信息科技事务所 | Method for online detecting leakage resistive current of lightning arrestor |
-
1979
- 1979-03-26 JP JP3746079A patent/JPS55128167A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102435897A (en) * | 2011-09-14 | 2012-05-02 | 浙江省电力试验研究院 | Method for filtering online monitoring data of arrester leakage current based on morphological principle |
Also Published As
Publication number | Publication date |
---|---|
JPS6148669B2 (en) | 1986-10-25 |
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