JPH0380636U - - Google Patents
Info
- Publication number
- JPH0380636U JPH0380636U JP14046389U JP14046389U JPH0380636U JP H0380636 U JPH0380636 U JP H0380636U JP 14046389 U JP14046389 U JP 14046389U JP 14046389 U JP14046389 U JP 14046389U JP H0380636 U JPH0380636 U JP H0380636U
- Authority
- JP
- Japan
- Prior art keywords
- short
- coil
- time rated
- rated coil
- time
- 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
- 238000007796 conventional method Methods 0.000 description 1
Landscapes
- Relay Circuits (AREA)
- Protection Of Static Devices (AREA)
Description
第１図は本考案による短時間定格コイルの保護
回路構成の一実施例を示す回路図、第２図は従来
の短時間定格コイルの保護方法を示す回路図であ
る。
３，１３…位置スイツチ、４，１４…コイル（
短時間定格コイル）、５，１５…タイマ、５Ａ，
１５Ａ…接点駆動部、５Ｂ，１５Ｂ…接点、３０
…電磁接触器、３０Ａ，３０Ｂ…主接点、１００
，１０１…保護回路、Ｐ、Ｎ…操作電源母線。
FIG. 1 is a circuit diagram showing an embodiment of a protection circuit configuration for a short-time rated coil according to the present invention, and FIG. 2 is a circuit diagram showing a conventional method for protecting a short-time rated coil. 3, 13... position switch, 4, 14... coil (
short-time rated coil), 5, 15...timer, 5A,
15A...Contact drive unit, 5B, 15B...Contact, 30
...Magnetic contactor, 30A, 30B...Main contact, 100
, 101...protection circuit, P, N...operation power supply bus.
Claims (1)
開路または閉路動作の終端位置で開路状態となる
位置スイツチを介して操作電源に接続される短時
間定格のコイルを、該短時間定格コイルへの通電
による前記開閉機器主接点の開路または閉路動作
の終端位置で前記位置スイツチが閉路状態を継続
したときに前記短時間定格コイルを焼損から保護
する回路であつて、内蔵している接点を入力信号
入力後所定の時間後に開放させるタイマの接点駆
動部を前記位置スイツチと短時間定格コイルとの
接続線から分岐して前記短時間定格コイルと並列
に接続するとともに該分岐点と短時間定格コイル
との間に前記タイマの接点が直列に挿入されてな
ることを特徴とする短時間定格コイルの保護回路
。 A short-time rated coil that is connected to an operating power source via a position switch that is mechanically interlocked with the main contact of a switching device and becomes open at the end position of the opening or closing operation of the main contact. A circuit that protects the short-time rated coil from burnout when the position switch continues to be closed at the terminal position of the opening or closing operation of the main contact of the switching device by energizing, and the circuit protects the short-time rated coil from burning out. A contact drive section of a timer that opens after a predetermined time after inputting an input signal is branched from the connection line between the position switch and the short-time rated coil and connected in parallel with the short-time rated coil, and is connected to the short-time rated coil at the branch point. A protection circuit for a short-time rated coil, characterized in that a contact of the timer is inserted in series between the coil and the coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14046389U JPH0380636U (en) | 1989-12-04 | 1989-12-04 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14046389U JPH0380636U (en) | 1989-12-04 | 1989-12-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0380636U true JPH0380636U (en) | 1991-08-19 |
Family
ID=31687438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14046389U Pending JPH0380636U (en) | 1989-12-04 | 1989-12-04 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0380636U (en) |
-
1989
- 1989-12-04 JP JP14046389U patent/JPH0380636U/ja active Pending
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