JPS60156830U - Abnormality detection circuit for single-phase induction motor - Google Patents
Abnormality detection circuit for single-phase induction motorInfo
- Publication number
- JPS60156830U JPS60156830U JP4336384U JP4336384U JPS60156830U JP S60156830 U JPS60156830 U JP S60156830U JP 4336384 U JP4336384 U JP 4336384U JP 4336384 U JP4336384 U JP 4336384U JP S60156830 U JPS60156830 U JP S60156830U
- Authority
- JP
- Japan
- Prior art keywords
- induction motor
- phase
- phase induction
- abnormality detection
- detection circuit
- 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
- Protection Of Generators And Motors (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来の単相誘導電動機の異常保護装置を示す斜
視図、第２図は同じ〈従来の単相誘導電動機の異常保護
回路を示す図、第３図は従来の単相誘導電動機に異常が
生−じた場合の動作特性を示す図、第４図は本考案に係
る単相誘導電動機の異常検出回路の一実施例を示す図、
第５図は単相誘導電動機の主巻線と補助巻線に流れる各
電流の位相関係を示す図、第６図は本考案に係る単相誘
導電動機の異常検出回路において、電動機の運転始動時
の異常検出動作を説明する図である。
図中４は主巻線、５は補助巻線、１１．１２は検出器、
１７は位相比較回路、１８は制御回路、１９は位相デー
タ記憶回路である。Figure 1 is a perspective view showing an abnormality protection device for a conventional single-phase induction motor. FIG. 4 is a diagram showing an embodiment of the abnormality detection circuit for a single-phase induction motor according to the present invention.
Fig. 5 is a diagram showing the phase relationship of each current flowing through the main winding and auxiliary winding of a single-phase induction motor, and Fig. 6 is a diagram showing the phase relationship of each current flowing through the main winding and auxiliary winding of a single-phase induction motor. It is a figure explaining abnormality detection operation of. In the figure, 4 is the main winding, 5 is the auxiliary winding, 11.12 is the detector,
17 is a phase comparison circuit, 18 is a control circuit, and 19 is a phase data storage circuit.
Claims (1)
と補助巻線に夫々流れる電流を検出する検出器と、その
雨検出器で検出された主巻線と補助巻線に流れる電流の
位相差を比較する位相比較回路と、その位相比較回路か
らの位相差と予め記憶された位相差とを比較して異常の
有無を検出する共にその検出信号で上記単相誘導電動機
の駆動停止を行う制御回路とを備えたことを特徴とする
単相誘導電動機の異常検出回路。A detector detects the current flowing through the main winding and the auxiliary winding in a single-phase induction motor, and the rain detector detects the current flowing through the main winding and the auxiliary winding. A phase comparator circuit that compares the phase difference of the current, and a phase difference from the phase comparator circuit is compared with a pre-stored phase difference to detect the presence or absence of an abnormality, and the detection signal is used to drive the single-phase induction motor. An abnormality detection circuit for a single-phase induction motor, comprising a control circuit for stopping the motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4336384U JPS60156830U (en) | 1984-03-28 | 1984-03-28 | Abnormality detection circuit for single-phase induction motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4336384U JPS60156830U (en) | 1984-03-28 | 1984-03-28 | Abnormality detection circuit for single-phase induction motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60156830U true JPS60156830U (en) | 1985-10-18 |
Family
ID=30554962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4336384U Pending JPS60156830U (en) | 1984-03-28 | 1984-03-28 | Abnormality detection circuit for single-phase induction motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60156830U (en) |
-
1984
- 1984-03-28 JP JP4336384U patent/JPS60156830U/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS60156830U (en) | Abnormality detection circuit for single-phase induction motor | |
| JPS60185078U (en) | Pump dry running prevention device | |
| JPS6114838U (en) | Power converter failure detection device | |
| JPS6011696U (en) | rotating electric machine | |
| JPS6099683U (en) | Power window automatic stop device | |
| JPS59142771U (en) | Thyristor failure detection device | |
| JPS59183141U (en) | Field winding burnout prevention circuit | |
| JPS593769U (en) | Brushless motor safety device | |
| JPS5856595U (en) | GTO inverter control circuit | |
| JPS59175184U (en) | Inverter current detection device | |
| JPS59180233U (en) | Endless tape recorder capstan motor lock protection circuit | |
| JPS5972841U (en) | Current detection relay | |
| JPS59189473U (en) | Failure detection device for rotating rectifier in brushless synchronous machine | |
| JPS5928269U (en) | motor protection device | |
| JPS59189472U (en) | Failure detection device for rotary rectifier in brushless synchronous machine | |
| JPS59138390U (en) | Power transistor overcurrent prevention circuit | |
| JPS58183034U (en) | Unbalanced current detection device for three-phase AC load | |
| JPS5859387U (en) | Inverter protection device | |
| JPS59125737U (en) | Tape end detection circuit for tape recorder | |
| JPH0330797U (en) | ||
| JPS5972845U (en) | Coil failure detection device | |
| JPS5883975U (en) | Brush powder adhesion detection device for wound induction motors | |
| JPS60190189U (en) | Elevator safety device | |
| JPS5937900U (en) | Inverter | |
| JPS6090643U (en) | Regenerative power detection device |