JPS63157673U - - Google Patents
Info
- Publication number
- JPS63157673U JPS63157673U JP5093587U JP5093587U JPS63157673U JP S63157673 U JPS63157673 U JP S63157673U JP 5093587 U JP5093587 U JP 5093587U JP 5093587 U JP5093587 U JP 5093587U JP S63157673 U JPS63157673 U JP S63157673U
- Authority
- JP
- Japan
- Prior art keywords
- contact
- relay
- energized
- capacitor
- under test
- 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
- 239000003990 capacitor Substances 0.000 claims description 4
- 230000002265 prevention Effects 0.000 claims description 2
- 238000001514 detection method Methods 0.000 claims 6
- 230000007547 defect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 1
Landscapes
- Measurement Of Resistance Or Impedance (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Description
第１図は本考案の一実施例を示す回路図、第２
図は本考案の他の実施例を示す回路図である。
１……接点抵抗自動検測器、Ｃ……コンデンサ
、Ｄ……逆流防止用ダイオード、Ｒ０，Ｒ１，Ｒ
２……抵抗、Ｘ１０……接触不良検出用継電器の
コイル、Ｘ２０……接点閉路検出用継電器のコイ
ル、Ｘ３０……動作表示用継電器のコイル、Ｙ１
，Ｙ２，Ｙ３……被検測接点。
Figure 1 is a circuit diagram showing one embodiment of the present invention, Figure 2 is a circuit diagram showing an embodiment of the present invention.
The figure is a circuit diagram showing another embodiment of the present invention. 1... Contact resistance automatic tester, C... Capacitor, D... Backflow prevention diode, R 0 , R 1 , R
2 ... Resistance ,
, Y 2 , Y 3 ...Test measurement contacts.
Claims (1)
触不良を検出するものにおいて、 直流電源の正負極母線間に直列接続された被検
測接点および継電器と、 前記継電器に並列接続され、被検測接点の閉成
時に付勢される接点閉路検出用継電器と、 前記直流電源の正負極母線間に接続され、接点
閉路検出用継電器の消勢時に充電されるコンデン
サと、 前記コンデンサに並列接続され、接点閉路検出
用継電器の付勢時にコンデンサの充電電荷が放電
される抵抗分圧回路と、 前記抵抗分圧回路の中点と前記被検測接点およ
び継電器の共通接続点とを結ぶ電路に介挿された
接触不良検出用継電器と、 前記被検測接点および継電器の共通接続点から
接触不良検出用継電器へ流入する電流を阻止する
逆流防止用ダイオードと、 前記接触不良検出用継電器の付勢時に付勢され
る動作表示用継電器とを備えたことを特徴とする
接点抵抗自動検測器。[Scope of Claim for Utility Model Registration] In a device for detecting contact failures such as contacts of relays and auxiliary contacts of circuit breakers, the contact to be tested and the relay connected in series between the positive and negative electrode bus bars of a DC power source, A contact closure detection relay that is connected in parallel to the relay and is energized when the contact under test is closed; and a capacitor that is connected between the positive and negative bus bars of the DC power supply and is charged when the contact closure detection relay is deenergized. and a resistor voltage divider circuit connected in parallel to the capacitor, in which the charge in the capacitor is discharged when the relay for contact closure detection is energized, and a common point between the midpoint of the resistor voltage divider circuit and the contact under test and the relay. a contact failure detection relay inserted in an electrical path connecting the connection point; a backflow prevention diode that blocks current flowing from a common connection point of the contact under test and the relay to the contact failure detection relay; and the contact An automatic contact resistance tester comprising an operation display relay that is energized when a defect detection relay is energized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5093587U JPS63157673U (en) | 1987-04-03 | 1987-04-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5093587U JPS63157673U (en) | 1987-04-03 | 1987-04-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63157673U true JPS63157673U (en) | 1988-10-17 |
Family
ID=30874747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5093587U Pending JPS63157673U (en) | 1987-04-03 | 1987-04-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63157673U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102510439A (en) * | 2011-11-21 | 2012-06-20 | 四川虹微技术有限公司 | Self-adaptive compensation device for leakage current of current clamping circuit |
-
1987
- 1987-04-03 JP JP5093587U patent/JPS63157673U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102510439A (en) * | 2011-11-21 | 2012-06-20 | 四川虹微技术有限公司 | Self-adaptive compensation device for leakage current of current clamping circuit |
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