JPS54109120A - Ac power supply - Google Patents

Ac power supply

Info

Publication number
JPS54109120A
JPS54109120A JP1681578A JP1681578A JPS54109120A JP S54109120 A JPS54109120 A JP S54109120A JP 1681578 A JP1681578 A JP 1681578A JP 1681578 A JP1681578 A JP 1681578A JP S54109120 A JPS54109120 A JP S54109120A
Authority
JP
Japan
Prior art keywords
source
power supply
inertia
motors
spare
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
JP1681578A
Other languages
Japanese (ja)
Inventor
Hideo Ishibashi
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.)
Fuji Electric Co Ltd
Original Assignee
Fuji 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 Fuji Electric Co Ltd filed Critical Fuji Electric Co Ltd
Priority to JP1681578A priority Critical patent/JPS54109120A/en
Publication of JPS54109120A publication Critical patent/JPS54109120A/en
Pending legal-status Critical Current

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  • Control Of Multiple Motors (AREA)

Abstract

PURPOSE: To make a functional and economical power supply by providing one spare source at least to the power supply of a multiplicity of motors which have loads of distinct moments of inertia from each other and by controlling the changing with an electronic switch and a mechanical switch.
CONSTITUTION: The loads 17-57, the moments of inertia of which are distinct from each other, are driven by the motors 16-56 which are supplied power from the variable frequency power source 11-51, the electronic switches 12, 13 are used in the source 11 and the mechanical switches 22-52, 23-53 are used in the other sources, the motors are connected with the spare source 61 through the switching units 14-54 and the synchronization controller 18-58. When the spare source 61 is made wait on synchronizing the motor 16 the moment of inertia of which is the least, the power supply 11, if troubled, can be changed to the spare source at high speed. Also, the other group the moment of inertia of which is greater is changed by the mechanical switch on synchronizing the motor at low speed.
COPYRIGHT: (C)1979,JPO&Japio
JP1681578A 1978-02-16 1978-02-16 Ac power supply Pending JPS54109120A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1681578A JPS54109120A (en) 1978-02-16 1978-02-16 Ac power supply

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1681578A JPS54109120A (en) 1978-02-16 1978-02-16 Ac power supply

Publications (1)

Publication Number Publication Date
JPS54109120A true JPS54109120A (en) 1979-08-27

Family

ID=11926658

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1681578A Pending JPS54109120A (en) 1978-02-16 1978-02-16 Ac power supply

Country Status (1)

Country Link
JP (1) JPS54109120A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0412699A (en) * 1990-04-27 1992-01-17 Kubota Corp Engine generator power supply facility having backup function

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0412699A (en) * 1990-04-27 1992-01-17 Kubota Corp Engine generator power supply facility having backup function

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