JPS573599A - Change-over method for cycle of variable-speed motor by inverter - Google Patents

Change-over method for cycle of variable-speed motor by inverter

Info

Publication number
JPS573599A
JPS573599A JP7546680A JP7546680A JPS573599A JP S573599 A JPS573599 A JP S573599A JP 7546680 A JP7546680 A JP 7546680A JP 7546680 A JP7546680 A JP 7546680A JP S573599 A JPS573599 A JP S573599A
Authority
JP
Japan
Prior art keywords
dust
running state
power source
change
motors
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
JP7546680A
Other languages
Japanese (ja)
Inventor
Masao Funaki
Masaru Watanabe
Kenichi Kato
Toshihiro Sawa
Hiroshi Nakamura
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.)
Yaskawa Electric Corp
JFE Engineering Corp
Original Assignee
NKK Corp
Nippon Kokan Ltd
Yaskawa Electric Manufacturing 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 NKK Corp, Nippon Kokan Ltd, Yaskawa Electric Manufacturing Co Ltd filed Critical NKK Corp
Priority to JP7546680A priority Critical patent/JPS573599A/en
Publication of JPS573599A publication Critical patent/JPS573599A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P5/00—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors
    • H02P5/74—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors controlling two or more ac dynamo-electric motors

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Multiple Motors (AREA)

Abstract

PURPOSE:To prevent temporary drops in motor speeds, by a method wherein when a plurality of motors are to be changed over from a high-speed running state on a commercial power source to a low-speed running state on an inverter power source, said change-over is effected with time intervals. CONSTITUTION:A dust-collecting equipment comprises a plurality of motors 1a and 1b, blowers 2a and 2b, for example, driven by the respective motors, dust collectors 3a and 3b, for example, and dust-collecting dampers 4a, 4b.... When the motors 1a and 1b are to be changed over from the high-speed running state on a commercial power source to the low-speed running state on an inverter power source through a free running state according to the dust-rising characteristics, said change-over is effected with time intervals as shown in the figures A and B. Thereby, it is made possible to prevent temporary drops in the motor speeds due to the lag of the control system and a large drop in the dust-collecting capacity resulting therefrom.
JP7546680A 1980-06-06 1980-06-06 Change-over method for cycle of variable-speed motor by inverter Pending JPS573599A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7546680A JPS573599A (en) 1980-06-06 1980-06-06 Change-over method for cycle of variable-speed motor by inverter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7546680A JPS573599A (en) 1980-06-06 1980-06-06 Change-over method for cycle of variable-speed motor by inverter

Publications (1)

Publication Number Publication Date
JPS573599A true JPS573599A (en) 1982-01-09

Family

ID=13577104

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7546680A Pending JPS573599A (en) 1980-06-06 1980-06-06 Change-over method for cycle of variable-speed motor by inverter

Country Status (1)

Country Link
JP (1) JPS573599A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62133594U (en) * 1986-02-15 1987-08-22

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5343444U (en) * 1977-08-31 1978-04-14

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5343444U (en) * 1977-08-31 1978-04-14

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62133594U (en) * 1986-02-15 1987-08-22

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