JPH0275999U - - Google Patents
Info
- Publication number
- JPH0275999U JPH0275999U JP1988156134U JP15613488U JPH0275999U JP H0275999 U JPH0275999 U JP H0275999U JP 1988156134 U JP1988156134 U JP 1988156134U JP 15613488 U JP15613488 U JP 15613488U JP H0275999 U JPH0275999 U JP H0275999U
- Authority
- JP
- Japan
- Prior art keywords
- speed
- motor
- secondary resistance
- induction motor
- detection means
- 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
- 238000001816 cooling Methods 0.000 claims description 5
- 230000006698 induction Effects 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Control Of Ac Motors In General (AREA)
- Motor Or Generator Cooling System (AREA)
Description
第１図は本考案の一実施例を示す装置構成図、
第２図は実施例における運転特性図である。
１……誘導電動機、２……二次抵抗、４……冷
却フアン、５……駆動用電動機、６……インバー
タ、９……関数発生器。
FIG. 1 is an apparatus configuration diagram showing an embodiment of the present invention;
FIG. 2 is an operating characteristic diagram in the example. DESCRIPTION OF SYMBOLS 1...Induction motor, 2...Secondary resistance, 4...Cooling fan, 5...Drive motor, 6...Inverter, 9...Function generator.
Claims (1)
却フアンで風冷する冷却装置において、前記巻線
形誘導電動機の速度を検出する速度検出手段と、
前記誘導電動機の速度に対する前記二次抵抗の損
失特性に近似させた速度―損失パターンに従つて
前記速度検出手段の検出速度に応じた速度指令を
発生する関数発生器と、この関数発生器の速度指
令に従つた速度で前記冷却フアンの駆動用電動機
を駆動するインバータとを備えたことを特徴とす
る二次抵抗の冷却装置。 A cooling device that air-cools a secondary resistance of a wound induction motor using a motor-driven cooling fan, comprising: speed detection means for detecting the speed of the wound induction motor;
a function generator that generates a speed command according to the speed detected by the speed detection means according to a speed-loss pattern that approximates the loss characteristic of the secondary resistance with respect to the speed of the induction motor; and the speed of the function generator. A secondary resistance cooling device comprising: an inverter that drives a motor for driving the cooling fan at a speed according to a command.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988156134U JPH0275999U (en) | 1988-11-30 | 1988-11-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988156134U JPH0275999U (en) | 1988-11-30 | 1988-11-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0275999U true JPH0275999U (en) | 1990-06-11 |
Family
ID=31434394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988156134U Pending JPH0275999U (en) | 1988-11-30 | 1988-11-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0275999U (en) |
-
1988
- 1988-11-30 JP JP1988156134U patent/JPH0275999U/ja active Pending
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