JPH0226388U - - Google Patents
Info
- Publication number
- JPH0226388U JPH0226388U JP10143888U JP10143888U JPH0226388U JP H0226388 U JPH0226388 U JP H0226388U JP 10143888 U JP10143888 U JP 10143888U JP 10143888 U JP10143888 U JP 10143888U JP H0226388 U JPH0226388 U JP H0226388U
- Authority
- JP
- Japan
- Prior art keywords
- current
- primary side
- starting
- switching element
- electric 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 1
- 238000010586 diagram Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 1
Landscapes
- Motor And Converter Starters (AREA)
Description
第１図及び第２図は本考案にかかる電動機起動
装置の一実施例における説明図であつて、第１図
は電動機起動装置の電気的構成図、第２図は起動
時における一次側電流を示すグラフである。
Ａ……電動機起動装置、１０Ｘ，１０Ｙ，１０
Ｚ……ＳＣＲ、２０Ｘ，２０Ｙ，２０Ｚ……ＣＴ
、３０……マイクロコンピユータ、ａ……三相誘
導電動機。
1 and 2 are explanatory diagrams of one embodiment of the motor starting device according to the present invention, in which FIG. 1 is an electrical configuration diagram of the motor starting device, and FIG. 2 shows the primary side current at the time of starting. This is a graph showing. A...Electric motor starting device, 10X, 10Y, 10
Z...SCR, 20X, 20Y, 20Z...CT
, 30... Microcomputer, a... Three-phase induction motor.
Claims (1)
続するスイツチング素子と、前記一次側電流の大
きさを検出する電流検出器と、前記電動機が起動
する時の一次側電流に関する起動電流パターンが
予め格納されており、前記電流検出器の検出結果
と前記起動電流パターンとを比較し、この比較結
果により前記スイツチング素子を制御する制御部
とを具備していることを特徴とする電動機起動装
置。 A switching element connected to the primary side of the electric motor to intermittent the primary side current, a current detector for detecting the magnitude of the primary side current, and a starting current pattern regarding the primary side current when the electric motor starts up are prepared in advance. A motor starting device comprising: a control section that compares the detection result of the current detector with the starting current pattern and controls the switching element based on the comparison result.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10143888U JPH0226388U (en) | 1988-07-29 | 1988-07-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10143888U JPH0226388U (en) | 1988-07-29 | 1988-07-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0226388U true JPH0226388U (en) | 1990-02-21 |
Family
ID=31330433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10143888U Pending JPH0226388U (en) | 1988-07-29 | 1988-07-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0226388U (en) |
-
1988
- 1988-07-29 JP JP10143888U patent/JPH0226388U/ja active Pending
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