JPS61166494U - - Google Patents
Info
- Publication number
- JPS61166494U JPS61166494U JP4930585U JP4930585U JPS61166494U JP S61166494 U JPS61166494 U JP S61166494U JP 4930585 U JP4930585 U JP 4930585U JP 4930585 U JP4930585 U JP 4930585U JP S61166494 U JPS61166494 U JP S61166494U
- Authority
- JP
- Japan
- Prior art keywords
- resistance element
- linear resistance
- display device
- parallel
- lightning 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.)
- Granted
Links
- 239000003990 capacitor Substances 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 4
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
Landscapes
- Thermistors And Varistors (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Description
第１図はこの考案の一実施例による避雷器動作
表示装置を示す回路図、第２図は第１図の避雷器
動作表示装置の動作を説明する電流・電圧特性図
、第３図および第４図はそれぞれこの考案の異な
る実施例を示す避雷器動作表示装置の回路図、第
５図は従来の避雷器動作表示装置を示す回路図で
ある。
１は避雷器、４は電流計、７はカウンタ、８，
８Ａ，８Ｂは漏れ電流計測部、９はサージ動作計
数部、１０，１０Ａ，１０Ｂは避雷器動作表示装
置、１２は接続端子、１３はリード線、Ｒ１〜Ｒ
３は非直線抵抗素子、Ｃ，Ｃ１はコンデンサであ
る。なお、図中、同一符号は同一又は相当部分を
示す。
FIG. 1 is a circuit diagram showing a lightning arrester operation display device according to an embodiment of this invention, FIG. 2 is a current/voltage characteristic diagram explaining the operation of the lightning arrester operation display device of FIG. 1, and FIGS. 3 and 4 5 is a circuit diagram of a lightning arrester operation display device showing different embodiments of this invention, and FIG. 5 is a circuit diagram showing a conventional lightning arrester operation display device. 1 is a lightning arrester, 4 is an ammeter, 7 is a counter, 8,
8A and 8B are leakage current measurement units, 9 is a surge operation counter, 10, 10A, and 10B are lightning arrester operation display devices, 12 is a connection terminal, 13 is a lead wire, R 1 to R
3 is a non-linear resistance element, and C and C 1 are capacitors. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.
Claims (1)
れ電流計測部に直列接続され、コンデンサおよび
カウンタの並列接続を有するサージ動作計数部と
からなり、避雷器と接地との間に接続された避雷
器動作表示装置において、前記電流計に並列接続
された第１の非直線抵抗素子と、前記漏れ電流計
測部とサージ動作計数部との直列接続に対し並列
に接続された第２の非直線抵抗素子とを備え、前
記第１の非直線抵抗素子の制限電圧が、前記第２
の非直線抵抗素子の制限電圧より低く設定された
事を特徴とする避雷器動作表示装置。 (2) 電流計に、第３の非直線抵抗素子またはコ
ンデンサを並列接続したことを特徴とする実用新
案登録請求の範囲第１項記載の避雷器動作表示装
置。 (3) 電流計が接続端子およびこの接続端子に接
続された平行なリード線を介して接続されたこと
を特徴とする実用新案登録請求の範囲第１項記載
の避雷器動作表示装置。[Claims for Utility Model Registration] (1) Consisting of a leakage current measuring section having an ammeter, a surge operation counting section connected in series to the leakage current measuring section and having a parallel connection of a capacitor and a counter, and connected to a surge arrester and grounding. A lightning arrester operation display device connected between a first non-linear resistance element connected in parallel to the ammeter, and a first non-linear resistance element connected in parallel to the series connection of the leakage current measuring section and the surge operation counting section. a second non-linear resistance element, the limiting voltage of the first non-linear resistance element being equal to the second non-linear resistance element;
A lightning arrester operation display device characterized in that the voltage is set lower than the limiting voltage of a non-linear resistance element. (2) The lightning arrester operation display device according to claim 1, which is characterized in that a third non-linear resistance element or a capacitor is connected in parallel to the ammeter. (3) The lightning arrester operation display device according to claim 1, wherein the ammeter is connected via a connecting terminal and parallel lead wires connected to the connecting terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4930585U JPH0331025Y2 (en) | 1985-04-04 | 1985-04-04 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4930585U JPH0331025Y2 (en) | 1985-04-04 | 1985-04-04 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61166494U true JPS61166494U (en) | 1986-10-15 |
| JPH0331025Y2 JPH0331025Y2 (en) | 1991-07-01 |
Family
ID=30566377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4930585U Expired JPH0331025Y2 (en) | 1985-04-04 | 1985-04-04 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0331025Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012138305A (en) * | 2010-12-27 | 2012-07-19 | Toshiba Corp | Discharge frequency meter |
-
1985
- 1985-04-04 JP JP4930585U patent/JPH0331025Y2/ja not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012138305A (en) * | 2010-12-27 | 2012-07-19 | Toshiba Corp | Discharge frequency meter |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0331025Y2 (en) | 1991-07-01 |
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