JPH0283471U - - Google Patents
Info
- Publication number
- JPH0283471U JPH0283471U JP16240588U JP16240588U JPH0283471U JP H0283471 U JPH0283471 U JP H0283471U JP 16240588 U JP16240588 U JP 16240588U JP 16240588 U JP16240588 U JP 16240588U JP H0283471 U JPH0283471 U JP H0283471U
- Authority
- JP
- Japan
- Prior art keywords
- disconnection
- detects
- detected
- high resistance
- detection device
- 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
- 238000001514 detection method Methods 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 1
Landscapes
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Description
第１図および第２図は本考案の一実施例を示す
断線検出電流回路図および断線検出判別表示回路
図、第３図および第４図は従来の断線検出装置の
一例を示す回路図である。
１……交流電源、２……切換スイツチ、３〜５
……運転指令用スイツチ、６〜８……現場操作ス
イツチ、９〜１１……保護接点、１２〜１４……
電磁接触器、１５〜１７……電気装置、１８……
電流検出器、１９……半波整流器、２０……抵抗
、２１……断線検出器、２２〜２４……アンド回
路、２５……表示装置、２６……電源、２７〜２
９……ランプ、３ａ〜５ａ……運転指令用スイツ
チ補助接点、１２ａ〜１４ａ……電磁接触器補助
接点、１８ｂ……電流検出器接点。
1 and 2 are a disconnection detection current circuit diagram and a disconnection detection discrimination display circuit diagram showing an embodiment of the present invention, and FIGS. 3 and 4 are circuit diagrams showing an example of a conventional disconnection detection device. . 1... AC power supply, 2... Selector switch, 3 to 5
...Operation command switch, 6-8... Field operation switch, 9-11... Protective contact, 12-14...
Electromagnetic contactor, 15-17...Electrical device, 18...
Current detector, 19... Half-wave rectifier, 20... Resistor, 21... Disconnection detector, 22-24... AND circuit, 25... Display device, 26... Power supply, 27-2
9... Lamp, 3a to 5a... Operation command switch auxiliary contact, 12a to 14a... Magnetic contactor auxiliary contact, 18b... Current detector contact.
Claims (1)
接続された複数の電気装置のそれぞれの断線また
は断路を検出する断線検出装置において、断線検
出時に交流電源と上記複数の電気装置との間に共
通の高抵抗を半波整流器を介して直列接続する切
換スイツチと、断線検出すべき電気装置の運転用
スイツチを閉じたとき上記高抵抗に流れる電流を
検出する電流検出器と、上記運転用スイツチを閉
じたとき高抵抗に電流が流れるか流れないかによ
つて対応する電気装置のそれぞれの断線無し、断
線ありを判別して表示する表示装置を備えたこと
を特徴とする断線検出装置。 In a disconnection detection device that detects a disconnection or disconnection in each of a plurality of electrical devices connected to an AC power source via their respective operation switches, when a disconnection is detected, a common high voltage a changeover switch that connects resistors in series via a half-wave rectifier; a current detector that detects the current flowing through the high resistance when the operating switch of the electrical device to be detected for disconnection is closed; What is claimed is: 1. A disconnection detection device comprising a display device that determines and displays whether a corresponding electrical device has a disconnection or not, depending on whether current flows through a high resistance or not.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16240588U JPH0283471U (en) | 1988-12-16 | 1988-12-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16240588U JPH0283471U (en) | 1988-12-16 | 1988-12-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0283471U true JPH0283471U (en) | 1990-06-28 |
Family
ID=31446201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16240588U Pending JPH0283471U (en) | 1988-12-16 | 1988-12-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0283471U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012133905A (en) * | 2010-12-20 | 2012-07-12 | Calsonic Kansei Corp | Switching device |
-
1988
- 1988-12-16 JP JP16240588U patent/JPH0283471U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012133905A (en) * | 2010-12-20 | 2012-07-12 | Calsonic Kansei Corp | Switching device |
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