JPS63137873U - - Google Patents
Info
- Publication number
- JPS63137873U JPS63137873U JP3067187U JP3067187U JPS63137873U JP S63137873 U JPS63137873 U JP S63137873U JP 3067187 U JP3067187 U JP 3067187U JP 3067187 U JP3067187 U JP 3067187U JP S63137873 U JPS63137873 U JP S63137873U
- Authority
- JP
- Japan
- Prior art keywords
- relay
- bypass circuit
- resistor
- trip
- parallel
- 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
- 230000001681 protective effect Effects 0.000 claims 3
- 244000145845 chattering Species 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Description
第１図はこの考案の断線検知装置の一実施例を
示す電気回路図、第２図は従来例を示す電気回路
図。
１……トリツプリレー、２……パレツトスイツ
チ、３１……抵抗、３２……コンパレータ。
FIG. 1 is an electric circuit diagram showing an embodiment of the disconnection detection device of this invention, and FIG. 2 is an electric circuit diagram showing a conventional example. 1...Trip relay, 2...Palette switch, 31...Resistor, 32...Comparator.
Claims (1)
パレツトスイツチを接続してチヤタリングの発生
を防止するようにした保護継電器において、パレ
ツトスイツチと並列にバイパス回路を接続し、バ
イパス回路を含んで直列接続された回路のうち、
バイパス回路、およびトリツプリレーを除いた部
分に通電状態検出手段を接続していることを特徴
とする保護継電器におけるトリツプリレーの断線
検知装置。 ２ 通電状態検知手段が、抵抗と、抵抗の両端に
おける電圧信号を入力とするコンパレータとを有
するものである上記実用新案登録請求の範囲第１
項記載の保護継電器におけるトリツプリレーの断
線検知装置。[Claims for Utility Model Registration] 1. In a protective relay in which a palette switch is connected in series with a triple relay that drives a circuit breaker to prevent the occurrence of chattering, a bypass circuit is connected in parallel with the palette switch, and the bypass circuit is connected in parallel with the palette switch. Of the circuits connected in series including
A disconnection detection device for a trip relay in a protective relay, characterized in that an energization state detection means is connected to a portion other than a bypass circuit and a trip relay. 2. Claim 1 of the above-mentioned utility model registration, wherein the energization state detection means includes a resistor and a comparator that inputs voltage signals at both ends of the resistor.
A disconnection detection device for a trip relay in a protective relay as described in 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3067187U JPS63137873U (en) | 1987-03-03 | 1987-03-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3067187U JPS63137873U (en) | 1987-03-03 | 1987-03-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63137873U true JPS63137873U (en) | 1988-09-12 |
Family
ID=30835697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3067187U Pending JPS63137873U (en) | 1987-03-03 | 1987-03-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63137873U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009303397A (en) * | 2008-06-13 | 2009-12-24 | Mitsubishi Electric Corp | Disconnection detection device of trip operation circuit of switching device |
-
1987
- 1987-03-03 JP JP3067187U patent/JPS63137873U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009303397A (en) * | 2008-06-13 | 2009-12-24 | Mitsubishi Electric Corp | Disconnection detection device of trip operation circuit of switching device |
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