JPS57210107A - Controller for steam turbine - Google Patents

Controller for steam turbine

Info

Publication number
JPS57210107A
JPS57210107A JP9484381A JP9484381A JPS57210107A JP S57210107 A JPS57210107 A JP S57210107A JP 9484381 A JP9484381 A JP 9484381A JP 9484381 A JP9484381 A JP 9484381A JP S57210107 A JPS57210107 A JP S57210107A
Authority
JP
Japan
Prior art keywords
speed
turbine
overspeed
signal
signals
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
JP9484381A
Other languages
Japanese (ja)
Inventor
Hiroya Sato
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 JP9484381A priority Critical patent/JPS57210107A/en
Publication of JPS57210107A publication Critical patent/JPS57210107A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D21/00—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
    • F01D21/02—Shutting-down responsive to overspeed

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Turbines (AREA)

Abstract

PURPOSE:To prevent the overspeed of a turbine with high reliability through simple constitution, by providing an emergency electric speed governor including speed switch circuits for detecting the overspeed. CONSTITUTION:In the operation of a turbine 24, a real rotational frequency signal is generated through an electromagnetic pickup 29 and an F/V converter 30 so that a steam regulating valve 23 is controlled on the basis of a signal corresponding to the difference between said signal and a signal set by a speed setting unit 32. Other signals are produced by the speed detection electromagnetic pickups 41, 42 of an emergency speed governor and applied to speed switch circuits 44, 50, which generate output signals when the signals of the pickups 41, 42 reach levels set by tripping rotational frequency setting units 43, 49. Relay circuits 48, 51 for operating a tripping solenoid valve 46 and a master tripping solenoid valve 53 are turned on to prevent the overspeed operation of the turbine 24.
JP9484381A 1981-06-19 1981-06-19 Controller for steam turbine Pending JPS57210107A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9484381A JPS57210107A (en) 1981-06-19 1981-06-19 Controller for steam turbine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9484381A JPS57210107A (en) 1981-06-19 1981-06-19 Controller for steam turbine

Publications (1)

Publication Number Publication Date
JPS57210107A true JPS57210107A (en) 1982-12-23

Family

ID=14121312

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9484381A Pending JPS57210107A (en) 1981-06-19 1981-06-19 Controller for steam turbine

Country Status (1)

Country Link
JP (1) JPS57210107A (en)

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