JPS5856539U - Constant monitoring circuit - Google Patents
Constant monitoring circuitInfo
- Publication number
- JPS5856539U JPS5856539U JP15029681U JP15029681U JPS5856539U JP S5856539 U JPS5856539 U JP S5856539U JP 15029681 U JP15029681 U JP 15029681U JP 15029681 U JP15029681 U JP 15029681U JP S5856539 U JPS5856539 U JP S5856539U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- constant monitoring
- monitoring circuit
- undervoltage relay
- monitored
- 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
- Emergency Protection Circuit Devices (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は電圧変成器の２次回路に対する不足電圧継電器
の接続状態を示す回路構成図、第２図は従来の↑定電圧
継電器の常時監視回路の構成の一例を示す構成図、第３
図お゛よび第４図は本考案のｍ−実施例の構成を示す回
路構成図である。
１・１・・・電圧変成器の２次回路、１３・・・不足電
圧継電器、１３３□〜１３〜・・・不足電圧継電器の接
点、１４・・・常時監視不良検出用タイマ、１５・・・
全停検出用タイマ、１５ｂ・・・全停検出用タイマの接
点、１６ｂ□〜１６ｂ４・・・点検用接点。Fig. 1 is a circuit configuration diagram showing the connection state of an undervoltage relay to the secondary circuit of a voltage transformer, Fig. 2 is a configuration diagram showing an example of the configuration of a conventional constant voltage relay monitoring circuit, and Fig. 3
2 and 4 are circuit configuration diagrams showing the configuration of the m-embodiment of the present invention. 1.1... Secondary circuit of voltage transformer, 13... Undervoltage relay, 133□~13~... Contact of undervoltage relay, 14... Timer for constant monitoring failure detection, 15...・
Total stop detection timer, 15b...Contact of the total stop detection timer, 16b□ to 16b4...Contact for inspection.
Claims (1)
電圧継電器の点検時に前記監視対象回路と不足電圧継電
器との間を開路する点検用接点へを備え、前記不足電圧
継電器により前記対象回路の常時監視を行ない且つこの
常時監視による不良出力を全停検出条件にて阻止する常
時監視回路において、点検用接点動作時に前記全停検出
条件による不良出力の阻止を解除する回路を設けたこと
を特徴とする常時監視回路。an undervoltage relay connected to a circuit to be monitored; and an inspection contact that opens between the circuit to be monitored and the undervoltage relay when inspecting the undervoltage relay; In the constant monitoring circuit that performs monitoring and blocks defective outputs caused by this constant monitoring under a total failure detection condition, a circuit is provided that releases the blocking of defective outputs due to the total failure detection condition when the inspection contact is operated. A constant monitoring circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15029681U JPS5856539U (en) | 1981-10-09 | 1981-10-09 | Constant monitoring circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15029681U JPS5856539U (en) | 1981-10-09 | 1981-10-09 | Constant monitoring circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5856539U true JPS5856539U (en) | 1983-04-16 |
Family
ID=29943028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15029681U Pending JPS5856539U (en) | 1981-10-09 | 1981-10-09 | Constant monitoring circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5856539U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0928033A (en) * | 1995-07-10 | 1997-01-28 | Fuji Electric Co Ltd | Bus protective device |
| JP2018190907A (en) * | 2017-05-11 | 2018-11-29 | 東京電力ホールディングス株式会社 | Contact failure detector of magnetic contactor |
-
1981
- 1981-10-09 JP JP15029681U patent/JPS5856539U/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0928033A (en) * | 1995-07-10 | 1997-01-28 | Fuji Electric Co Ltd | Bus protective device |
| JP2018190907A (en) * | 2017-05-11 | 2018-11-29 | 東京電力ホールディングス株式会社 | Contact failure detector of magnetic contactor |
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