JPS57180356A - Exciter for synchronous machine - Google Patents

Exciter for synchronous machine

Info

Publication number
JPS57180356A
JPS57180356A JP56063448A JP6344881A JPS57180356A JP S57180356 A JPS57180356 A JP S57180356A JP 56063448 A JP56063448 A JP 56063448A JP 6344881 A JP6344881 A JP 6344881A JP S57180356 A JPS57180356 A JP S57180356A
Authority
JP
Japan
Prior art keywords
thyristor
rectifier
resistor
exciter
accident
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
JP56063448A
Other languages
Japanese (ja)
Inventor
Toshiaki Sogabe
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 JP56063448A priority Critical patent/JPS57180356A/en
Publication of JPS57180356A publication Critical patent/JPS57180356A/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
    • H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
    • H02P9/10—Control effected upon generator excitation circuit to reduce harmful effects of overloads or transients, e.g. sudden application of load, sudden removal of load, sudden change of load
    • H02P9/12—Control effected upon generator excitation circuit to reduce harmful effects of overloads or transients, e.g. sudden application of load, sudden removal of load, sudden change of load for demagnetising; for reducing effects of remanence; for preventing pole reversal
    • H02P9/123—Control effected upon generator excitation circuit to reduce harmful effects of overloads or transients, e.g. sudden application of load, sudden removal of load, sudden change of load for demagnetising; for reducing effects of remanence; for preventing pole reversal for demagnetising; for reducing effects of remanence

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Eletrric Generators (AREA)
  • Synchronous Machinery (AREA)

Abstract

PURPOSE:To enhance the reliability of an exciter for a synchronous machine by rapidly reducing a field current to zero through an attenuating circuit at the time of an accident, thereby suppressing the temperature rise of a thyristor. CONSTITUTION:When the excitation of a field coil of a generator 1 should be stopped due to an accident or the like, a main breaker 2 is first opened to disconnect the generator 1 from an AC system 4, and the output of an automatic voltage regulator 8 is stopped. Since a gate signal to a thyristor rectifier 5 is thus interrupted, the thyristor of the rectifier 5 does not fire, but only the thyristor in which an exciting current flows continues its conducting state. A contact 12 is closed in the gate blocked state of the rectifier 5, a resistor 13 is connected, a power breaker 6 is then opened, and the resistor 13 is operated as a discharging resistor, thereby rapidly reducing the exciting current to zero.
JP56063448A 1981-04-28 1981-04-28 Exciter for synchronous machine Pending JPS57180356A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56063448A JPS57180356A (en) 1981-04-28 1981-04-28 Exciter for synchronous machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56063448A JPS57180356A (en) 1981-04-28 1981-04-28 Exciter for synchronous machine

Publications (1)

Publication Number Publication Date
JPS57180356A true JPS57180356A (en) 1982-11-06

Family

ID=13229530

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56063448A Pending JPS57180356A (en) 1981-04-28 1981-04-28 Exciter for synchronous machine

Country Status (1)

Country Link
JP (1) JPS57180356A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0199498A (en) * 1987-10-12 1989-04-18 Toshiba Corp Exciter of synchronous machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0199498A (en) * 1987-10-12 1989-04-18 Toshiba Corp Exciter of synchronous machine

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