JPH01111491U - - Google Patents
Info
- Publication number
- JPH01111491U JPH01111491U JP674988U JP674988U JPH01111491U JP H01111491 U JPH01111491 U JP H01111491U JP 674988 U JP674988 U JP 674988U JP 674988 U JP674988 U JP 674988U JP H01111491 U JPH01111491 U JP H01111491U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- set threshold
- level signal
- data
- measured
- 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
- 230000006866 deterioration Effects 0.000 claims description 5
- 238000003745 diagnosis Methods 0.000 claims description 5
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 4
- 239000011787 zinc oxide Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
Landscapes
- Thermistors And Varistors (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Description
第１図は本考案の劣化診断の原理説明用波形図
、第２図は本考案の一実施例ブロツク回路図、第
３図はデータのプリントアウト例図、第４図は他
の実施例の説明図である。
１…避雷器、２…碍管、３…酸化亜鉛素子、４
…電流制限抵抗、５…課電交流電源、６…分流器
、７，７Ａ，７Ｂ…劣化診断装置、８…電流入力
端子、９…絶対値検出回路、１０１，１０２，１
０３，１０４…比較器、１１１，１１２，１１３
，１１４…カウンタ、１２１，１２２，１２３，
１２４…積分器、１３１，１３２，１３３，１３
４…アナログ出力端子、１４１〜１４４…積算器
、１５…クロツクパルス発振器、１６…制御回路
、１７…プリンタ入力切換回路、１８…プリンタ
、１９…プリント用紙。
Fig. 1 is a waveform diagram for explaining the principle of deterioration diagnosis of the present invention, Fig. 2 is a block circuit diagram of one embodiment of the present invention, Fig. 3 is an example of data printout, and Fig. 4 is a diagram of another embodiment. It is an explanatory diagram. 1... Lightning arrester, 2... Insulator tube, 3... Zinc oxide element, 4
...Current limiting resistor, 5...Charging AC power source, 6...Shunt, 7, 7A, 7B...Deterioration diagnosis device, 8...Current input terminal, 9...Absolute value detection circuit, 10 1 , 10 2 , 1
0 3 , 10 4 ... comparator, 11 1 , 11 2 , 11 3
, 11 4 ... counter, 12 1 , 12 2 , 12 3 ,
12 4 ... Integrator, 13 1 , 13 2 , 13 3 , 13
4 ...Analog output terminal, 141 to 144 ...Integrator, 15...Clock pulse oscillator, 16...Control circuit, 17...Printer input switching circuit, 18...Printer, 19...Print paper.
Claims (1)
漏れ電流が、異なる複数の設定敷居値レベルを越
える毎にレベル信号を送出する回路と、この回路
からのレベル信号を設定敷居値レベル毎に一定期
間計数して設定敷居値レベル毎の各レベル信号の
発生頻度を求める回路と、上記レベル信号により
制御されて前記避雷器の漏れ電流を各設定敷居値
レベル毎に積分して電荷量を求めると共に、一定
期間における設定敷居値レベル毎の全積算電荷量
を求める回路とを備え、これらの測定データを予
め測定された避雷器のデータと比較して劣化診断
を行うことを特徴とする酸化亜鉛形避雷器の劣化
診断装置。 A circuit that sends a level signal every time the leakage current of a lightning arrester formed by a non-linear resistance characteristic element exceeds a plurality of different set threshold levels, and a level signal from this circuit is counted for a certain period of time for each set threshold level. a circuit that calculates the frequency of occurrence of each level signal for each set threshold level; and a circuit that calculates the frequency of occurrence of each level signal for each set threshold level; A deterioration diagnosis for a zinc oxide type lightning arrester, characterized in that the deterioration diagnosis is performed by comparing the measured data with the data of the surge arrester measured in advance, and the deterioration diagnosis is performed by comparing the measured data with the data of the surge arrester measured in advance. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP674988U JPH01111491U (en) | 1988-01-22 | 1988-01-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP674988U JPH01111491U (en) | 1988-01-22 | 1988-01-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01111491U true JPH01111491U (en) | 1989-07-27 |
Family
ID=31211179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP674988U Pending JPH01111491U (en) | 1988-01-22 | 1988-01-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01111491U (en) |
-
1988
- 1988-01-22 JP JP674988U patent/JPH01111491U/ja active Pending
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