JPS5644400A - Exciting apparatus for synchronous generator - Google Patents

Exciting apparatus for synchronous generator

Info

Publication number
JPS5644400A
JPS5644400A JP11923079A JP11923079A JPS5644400A JP S5644400 A JPS5644400 A JP S5644400A JP 11923079 A JP11923079 A JP 11923079A JP 11923079 A JP11923079 A JP 11923079A JP S5644400 A JPS5644400 A JP S5644400A
Authority
JP
Japan
Prior art keywords
arrestor
preliminary
low voltage
contacts
opened
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
JP11923079A
Other languages
Japanese (ja)
Inventor
Katsuhide Tsuji
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 JP11923079A priority Critical patent/JPS5644400A/en
Publication of JPS5644400A publication Critical patent/JPS5644400A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
    • H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage

Landscapes

  • Control Of Eletrric Generators (AREA)

Abstract

PURPOSE:To enable to accomplish a quick replacement of an arrestor by invariably keeping a low voltage applied to a preliminary arrestor (surge absorber). CONSTITUTION:Normally, contacts 10-1, 10-2 and 10-4 of a switch 10 are closed while a contact 10-3 thereof is opened. An arrestor 8 is connected to the positive side p and the negative side n of an exciting circuit while a low voltage is applied to a preliminary arrestor 8-1 by way of a potential resistors 11 and 12. To change the arrestor 8, the contacts 10-1, 10-2 and 10-4 of the switch 10 are opened while the contact 10-3 is closed to connect the preliminary arrestor 8-1 to the exciting circuit. Such an invariable application of a low voltage to the preliminary arrestor eliminates the need for application of the voltage by a separate power source for the replacement of the arrestor thereby enabling quick change of the arrestor.
JP11923079A 1979-09-19 1979-09-19 Exciting apparatus for synchronous generator Pending JPS5644400A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11923079A JPS5644400A (en) 1979-09-19 1979-09-19 Exciting apparatus for synchronous generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11923079A JPS5644400A (en) 1979-09-19 1979-09-19 Exciting apparatus for synchronous generator

Publications (1)

Publication Number Publication Date
JPS5644400A true JPS5644400A (en) 1981-04-23

Family

ID=14756171

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11923079A Pending JPS5644400A (en) 1979-09-19 1979-09-19 Exciting apparatus for synchronous generator

Country Status (1)

Country Link
JP (1) JPS5644400A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5013830A (en) * 1986-09-08 1991-05-07 Ajinomoto Co., Inc. Compounds for the cleavage at a specific position of RNA, oligomers employed for the formation of said compounds, and starting materials for the synthesis of said oligomers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5013830A (en) * 1986-09-08 1991-05-07 Ajinomoto Co., Inc. Compounds for the cleavage at a specific position of RNA, oligomers employed for the formation of said compounds, and starting materials for the synthesis of said oligomers

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