JPS6226849U - - Google Patents
Info
- Publication number
- JPS6226849U JPS6226849U JP11869185U JP11869185U JPS6226849U JP S6226849 U JPS6226849 U JP S6226849U JP 11869185 U JP11869185 U JP 11869185U JP 11869185 U JP11869185 U JP 11869185U JP S6226849 U JPS6226849 U JP S6226849U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- circuit
- load
- power supply
- motor
- 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 3
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Protection Of Generators And Motors (AREA)
Description
第１図は本考案に係る負荷保護用継電器のブロ
ツク図、第２図は従来の負荷保護用継電器のブロ
ツク図を示す。
３…電動機、４…変流器、８…比較検出回路、
１７…操作電源電圧補償回路、１８…高位基準レ
ベル信号。
FIG. 1 is a block diagram of a load protection relay according to the present invention, and FIG. 2 is a block diagram of a conventional load protection relay. 3...Electric motor, 4...Current transformer, 8...Comparison detection circuit,
17...Operating power supply voltage compensation circuit, 18...High reference level signal.
Claims (1)
流器からの信号と、高位基準レベル信号とを比較
し前記負荷電流の高位レベルを検出する比較検出
回路を有し、比較検出回路の出力があらかじめ設
定されているタイマの動作時間よりも長く出力さ
れていた場合にリレーを駆動させる回路を備えた
負荷保護用継電器において、前記電動機の主回路
の電源電圧を検出し、この電圧変動により前記高
位基準レベル信号を補正する信号を出力する操作
電源電圧補償回路を備えたことを特徴とする負荷
保護用継電器。 It has a current transformer that detects the load current of the motor, and a comparison detection circuit that compares the signal from the current transformer with a high-level reference level signal to detect the high level of the load current, and the output of the comparison detection circuit. In a load protection relay equipped with a circuit that drives a relay when the voltage is output for a longer time than a preset timer operation time, the power supply voltage of the main circuit of the motor is detected, and this voltage fluctuation causes the A load protection relay characterized by comprising an operating power supply voltage compensation circuit that outputs a signal that corrects a high reference level signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11869185U JPS6226849U (en) | 1985-08-01 | 1985-08-01 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11869185U JPS6226849U (en) | 1985-08-01 | 1985-08-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6226849U true JPS6226849U (en) | 1987-02-18 |
Family
ID=31005384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11869185U Pending JPS6226849U (en) | 1985-08-01 | 1985-08-01 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6226849U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54140944A (en) * | 1978-04-26 | 1979-11-01 | Ebara Mfg | Voltative responsive current relay |
-
1985
- 1985-08-01 JP JP11869185U patent/JPS6226849U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54140944A (en) * | 1978-04-26 | 1979-11-01 | Ebara Mfg | Voltative responsive current relay |