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 apparatus

Info

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
Application number
JP4282579A
Other languages
Japanese (ja)
Inventor
Fumio Oki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP4282579A priority Critical patent/JPS55135913A/en
Publication of JPS55135913A publication Critical patent/JPS55135913A/en
Pending legal-status Critical Current

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
JP4282579A 1979-04-09 1979-04-09 Operation control device of cooling motor fan of electrical machinery and apparatus Pending JPS55135913A (en)

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)

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