JPS61149252U - - Google Patents
Info
- Publication number
- JPS61149252U JPS61149252U JP3172385U JP3172385U JPS61149252U JP S61149252 U JPS61149252 U JP S61149252U JP 3172385 U JP3172385 U JP 3172385U JP 3172385 U JP3172385 U JP 3172385U JP S61149252 U JPS61149252 U JP S61149252U
- Authority
- JP
- Japan
- Prior art keywords
- protection relay
- circuit
- failure
- event
- relay
- 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
- 238000010586 diagram Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
Landscapes
- Emergency Protection Circuit Devices (AREA)
Description
第１図はこの考案の一実施例による保護リレー
を用いた制御回路図、第２図は従来の保護リレー
を用いた制御回路図を示す。
図において、１は保護リレー、２は保護リレー
主要素接点、３は制御信号、４は制御用リレー、
６ａは故障検出補助リレーａ接点、７は保護リレ
ー条件バイパス許可スイツチである。なお、図中
、同一符号は同一、または相当部分を示す。
FIG. 1 shows a control circuit diagram using a protection relay according to an embodiment of the invention, and FIG. 2 shows a control circuit diagram using a conventional protection relay. In the figure, 1 is a protection relay, 2 is a protection relay main element contact, 3 is a control signal, 4 is a control relay,
6a is a failure detection auxiliary relay contact a, and 7 is a protection relay condition bypass permission switch. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.
Claims (1)
御回路において、保護リレーの故障時に保護リレ
ー条件をバイパスする回路を設け、保護リレーの
故障時にも使用可能としたことを特徴とした保護
リレーの制御回路。 What is claimed is: 1. A control circuit for a protection relay that uses a protection relay to form an interlock, and is characterized in that the circuit is provided with a circuit that bypasses the protection relay condition in the event of a failure of the protection relay, so that the circuit can be used even in the event of a failure of the protection relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3172385U JPS61149252U (en) | 1985-03-06 | 1985-03-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3172385U JPS61149252U (en) | 1985-03-06 | 1985-03-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61149252U true JPS61149252U (en) | 1986-09-13 |
Family
ID=30532582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3172385U Pending JPS61149252U (en) | 1985-03-06 | 1985-03-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61149252U (en) |
-
1985
- 1985-03-06 JP JP3172385U patent/JPS61149252U/ja active Pending