JPS62175295U - - Google Patents
Info
- Publication number
- JPS62175295U JPS62175295U JP6328986U JP6328986U JPS62175295U JP S62175295 U JPS62175295 U JP S62175295U JP 6328986 U JP6328986 U JP 6328986U JP 6328986 U JP6328986 U JP 6328986U JP S62175295 U JPS62175295 U JP S62175295U
- Authority
- JP
- Japan
- Prior art keywords
- power factor
- circuit
- blade angle
- detection device
- abnormality detection
- 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
- 230000005856 abnormality Effects 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 238000001514 detection method Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Control Of Positive-Displacement Air Blowers (AREA)
Description
図面は本考案の一実施例を示す異常検出装置の
構成図である。
１３…制御用計算機、１４…力率演算回路、１
５…ポテンシヨンメータ、１６…Ｒ―Ｉ変換器、
１７…力率換算回路、１８…力率比較回路。
The drawing is a configuration diagram of an abnormality detection device showing an embodiment of the present invention. 13...Control computer, 14...Power factor calculation circuit, 1
5... Potentiometer, 16... R-I converter,
17... Power factor conversion circuit, 18... Power factor comparison circuit.
Claims (1)
より力率を演算する第１の力率演算回路と、羽根
角検出値より力率に換算する第２の力率換算回路
と、これら第１及び第２の力率演算回路の力率差
が予め設定した値以上で継続されたかを判断する
比較判断回路とを具備してなる翼角制御回路の異
常検出装置。 a first power factor calculation circuit that calculates the power factor from the circuit voltage and circuit current of the variable blade fan operation circuit; a second power factor conversion circuit that converts the detected blade angle value into a power factor; An abnormality detection device for a blade angle control circuit, comprising: a comparison judgment circuit for judging whether a power factor difference between two power factor calculation circuits continues to be equal to or greater than a preset value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6328986U JPS62175295U (en) | 1986-04-28 | 1986-04-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6328986U JPS62175295U (en) | 1986-04-28 | 1986-04-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62175295U true JPS62175295U (en) | 1987-11-07 |
Family
ID=30898373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6328986U Pending JPS62175295U (en) | 1986-04-28 | 1986-04-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62175295U (en) |
-
1986
- 1986-04-28 JP JP6328986U patent/JPS62175295U/ja active Pending