JPH0386735U - - Google Patents
Info
- Publication number
- JPH0386735U JPH0386735U JP14599689U JP14599689U JPH0386735U JP H0386735 U JPH0386735 U JP H0386735U JP 14599689 U JP14599689 U JP 14599689U JP 14599689 U JP14599689 U JP 14599689U JP H0386735 U JPH0386735 U JP H0386735U
- Authority
- JP
- Japan
- Prior art keywords
- current transformer
- secondary side
- overcurrent relay
- circuit
- overcurrent
- 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)
Description
第１図は本考案の一実施例を示す過電流保護回
路の回路図、第２図は従来の過電流保護回路の回
路図である。
１……被保護回路、２……変流器、３，４……
過電流リレー回路、Ｓ……切替接触器、５，６，
７……計器、８……インピーダンス、Ｓ……切替
接触器。
FIG. 1 is a circuit diagram of an overcurrent protection circuit showing an embodiment of the present invention, and FIG. 2 is a circuit diagram of a conventional overcurrent protection circuit. 1...Protected circuit, 2...Current transformer, 3, 4...
Overcurrent relay circuit, S... switching contactor, 5, 6,
7...Meter, 8...Impedance, S...Switching contactor.
Claims (1)
器の二次側に設けられた過電流リレー回路とから
成る過電流保護回路において、 前記変流器の二次側に接続された過電流リレー
回路や各種計器類の総合負担値を変流器の定格負
担値に可及的に一致させるために、変流器の二次
側に負担調整用のインピーダンスを挿入し、この
イピーダンスは、過電流リレーが動作したとに、
変流器と引外しコイルとの間に接続されないよう
に、過電流リレー回路の切替接触器を介して引外
しコイルと並列に設けたことを特徴とする過電流
保護回路。[Claims for Utility Model Registration] In an overcurrent protection circuit consisting of a current transformer attached to a protected circuit and an overcurrent relay circuit provided on the secondary side of the current transformer, In order to make the overall load value of the overcurrent relay circuit and various instruments connected to the secondary side match the rated load value of the current transformer as much as possible, an impedance is installed on the secondary side of the current transformer for load adjustment. and this impedance is equal to when the overcurrent relay operates,
An overcurrent protection circuit characterized in that the overcurrent relay circuit is provided in parallel with the tripping coil via a switching contactor so as not to be connected between the current transformer and the tripping coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14599689U JPH0386735U (en) | 1989-12-19 | 1989-12-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14599689U JPH0386735U (en) | 1989-12-19 | 1989-12-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0386735U true JPH0386735U (en) | 1991-09-03 |
Family
ID=31692610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14599689U Pending JPH0386735U (en) | 1989-12-19 | 1989-12-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0386735U (en) |
-
1989
- 1989-12-19 JP JP14599689U patent/JPH0386735U/ja active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH02108236U (en) | ||
| JPH0454436U (en) | ||
| JPH0410538U (en) | ||
| JPS63157149U (en) | ||
| JPS62191048U (en) | ||
| JPS6241330U (en) | ||
| JPS62145253U (en) | ||
| JPS62182023U (en) | ||
| JPH02146938U (en) | ||
| JPS6198336U (en) | ||
| JPS6181118U (en) | ||
| JPH01146738U (en) | ||
| JPS62107529U (en) | ||
| JPS6238035U (en) | ||
| JPS6096936U (en) | Current transformer secondary open circuit protection device | |
| JPH0237535U (en) | ||
| JPH0425437U (en) | ||
| JPS61153406U (en) | ||
| JPH01166432U (en) | ||
| JPS6168638U (en) | ||
| JPS63149145U (en) | ||
| JPS61153442U (en) | ||
| JPH02108235U (en) | ||
| JPH0321940U (en) | ||
| JPH0444127U (en) |