JPS55135913A - Operation control device of cooling motor fan of electrical machinery and apparatus - Google Patents
Operation control device of cooling motor fan of electrical machinery and apparatusInfo
- Publication number
- JPS55135913A JPS55135913A JP4282579A JP4282579A JPS55135913A JP S55135913 A JPS55135913 A JP S55135913A JP 4282579 A JP4282579 A JP 4282579A JP 4282579 A JP4282579 A JP 4282579A JP S55135913 A JPS55135913 A JP S55135913A
- Authority
- JP
- Japan
- Prior art keywords
- operated
- motor fan
- temperature
- air duct
- subsequently
- 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
- Control Of Temperature (AREA)
Abstract
PURPOSE: To make it possible to let a motor fan have a long life and to let a motor fan group operate economically, by controlling the number of motor fans to be operated, depending upon the exothermic degree of the electrical machinery and apparatus.
CONSTITUTION: The changeover switch 21 is aligned with the temperature control side, and the operation sequence selector 22 is connected, for instance, with 123. When the fixed opening contact 20 is closed in this state, the generator starts its operation. And when the temperature in the air duct has risen and reached the setting temperature, the temperature detector A is operated and subsequently the motor fan group 31 is operated. When the temperature in the air duct has further risen and exceeded the next setting temperature, the temperature detector B is operated and subsequently the motor fan group 41 is operated. When the temperature in the air duct has risen up still more, the temperature detector C is operated and subsequently the motor fan group 51 is operated. When the selector 22 is changed to 231, the motor fan groups are operated in order of 41, 51 and 31 as the detectors are operated in order of AWC. On the other hand, when the selector 22 is changed to 312, the motor fan groups are operated in order of 51, 31 and 41 as the temperature in the air duct rises up.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4282579A JPS55135913A (en) | 1979-04-09 | 1979-04-09 | Operation control device of cooling motor fan of electrical machinery and apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4282579A JPS55135913A (en) | 1979-04-09 | 1979-04-09 | Operation control device of cooling motor fan of electrical machinery and apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55135913A true JPS55135913A (en) | 1980-10-23 |
Family
ID=12646726
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4282579A Pending JPS55135913A (en) | 1979-04-09 | 1979-04-09 | Operation control device of cooling motor fan of electrical machinery and apparatus |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55135913A (en) |
-
1979
- 1979-04-09 JP JP4282579A patent/JPS55135913A/en active Pending
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