JPS6221732U - - Google Patents
Info
- Publication number
- JPS6221732U JPS6221732U JP11222785U JP11222785U JPS6221732U JP S6221732 U JPS6221732 U JP S6221732U JP 11222785 U JP11222785 U JP 11222785U JP 11222785 U JP11222785 U JP 11222785U JP S6221732 U JPS6221732 U JP S6221732U
- Authority
- JP
- Japan
- Prior art keywords
- motor
- comparison circuit
- current
- detects
- detection signal
- 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.)
- Granted
Links
- 238000001514 detection method Methods 0.000 claims 2
- 101001005711 Homo sapiens MARVEL domain-containing protein 2 Proteins 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
Landscapes
- Protection Of Generators And Motors (AREA)
Description
図面は本考案の一実施例を示すブロツク図であ
る。
１……３相インダクシヨンモータ、２……主回
路、３……変流器、４……制御ユニツト、４１…
…比較器、４２……タイマ、ＴＲＩＣ……双方向
制御整流素子。
The drawing is a block diagram showing one embodiment of the present invention. DESCRIPTION OF SYMBOLS 1...Three-phase induction motor, 2...Main circuit, 3...Current transformer, 4...Control unit, 41...
...Comparator, 42...Timer, TRIC...Bidirectional control rectifier.
Claims (1)
された電動機電流と設定値とを比較し、過電流状
態を検出する比較回路と、この比較回路から出力
される過電流検出信号のうち一定時間以下の信号
を抑圧するタイマ回路と、上記比較回路から一定
時間以上出力された過電流検出信号に基づいて電
動機に対する入力電流を遮断する制御整流素子と
を備えた電動機の過負荷保護装置。 A current transformer that detects the current flowing through the motor, a comparison circuit that compares the detected motor current with a set value and detects an overcurrent condition, and a fixed time out of the overcurrent detection signal output from this comparison circuit. An overload protection device for a motor, comprising: a timer circuit that suppresses the following signals; and a control rectifier that cuts off input current to the motor based on an overcurrent detection signal output from the comparison circuit for a certain period of time or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985112227U JPH0742199Y2 (en) | 1985-07-22 | 1985-07-22 | Electric motor overload protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985112227U JPH0742199Y2 (en) | 1985-07-22 | 1985-07-22 | Electric motor overload protection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6221732U true JPS6221732U (en) | 1987-02-09 |
| JPH0742199Y2 JPH0742199Y2 (en) | 1995-09-27 |
Family
ID=30992901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985112227U Expired - Lifetime JPH0742199Y2 (en) | 1985-07-22 | 1985-07-22 | Electric motor overload protection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0742199Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014093932A (en) * | 2012-10-31 | 2014-05-19 | Fuji Hensokuki Co Ltd | Geared motor with overload protection device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5225929A (en) * | 1975-08-22 | 1977-02-26 | Hitachi Ltd | Injection carbureter |
| JPS53112734U (en) * | 1977-02-16 | 1978-09-08 |
-
1985
- 1985-07-22 JP JP1985112227U patent/JPH0742199Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5225929A (en) * | 1975-08-22 | 1977-02-26 | Hitachi Ltd | Injection carbureter |
| JPS53112734U (en) * | 1977-02-16 | 1978-09-08 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014093932A (en) * | 2012-10-31 | 2014-05-19 | Fuji Hensokuki Co Ltd | Geared motor with overload protection device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0742199Y2 (en) | 1995-09-27 |