JPS56148685A - Control method for wheel with movable means - Google Patents

Control method for wheel with movable means

Info

Publication number
JPS56148685A
JPS56148685A JP5314980A JP5314980A JPS56148685A JP S56148685 A JPS56148685 A JP S56148685A JP 5314980 A JP5314980 A JP 5314980A JP 5314980 A JP5314980 A JP 5314980A JP S56148685 A JPS56148685 A JP S56148685A
Authority
JP
Japan
Prior art keywords
shut
operated
vanes
sensed
emergency stop
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
JP5314980A
Other languages
Japanese (ja)
Inventor
Keizo Hayakawa
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 JP5314980A priority Critical patent/JPS56148685A/en
Publication of JPS56148685A publication Critical patent/JPS56148685A/en
Pending legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/20—Hydro energy

Landscapes

  • Control Of Water Turbines (AREA)

Abstract

PURPOSE: To enable a safe termination of a major machine by a method wherein when a guide vane is not operated to close under an emergency stop, this codition is sensed and the runner vanes are fully opened, then the flowing water is shut off by other flow shut-off mechanism.
CONSTITUTION: Servo-motor 3 is operated to close under an instruction for closing the guide vanes 2 obtained from a water wheel governor in case of a shut-off of load or an emergency stop of the operation. At this time, a hydraulic pressure found in the servo motor 3 is sensed, and when the pressure is acknowledged as one lower than the predetermined hydraulic pressure, a solenoid for use in opening the runner vanes 4 is operated, and the runner vanes 4 are operated to occupy a maximum angle. Thereby, a centrifugal force acting upon the water wheel and the rotary body directly connected thereto is decreased to about 1/2 of the maximum nonrestricting speed, and at the same time the flowing stream is shut off by other flowing stream shut-off mechanism, thereby the main machine may safely be stopped.
COPYRIGHT: (C)1981,JPO&Japio
JP5314980A 1980-04-22 1980-04-22 Control method for wheel with movable means Pending JPS56148685A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5314980A JPS56148685A (en) 1980-04-22 1980-04-22 Control method for wheel with movable means

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5314980A JPS56148685A (en) 1980-04-22 1980-04-22 Control method for wheel with movable means

Publications (1)

Publication Number Publication Date
JPS56148685A true JPS56148685A (en) 1981-11-18

Family

ID=12934767

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5314980A Pending JPS56148685A (en) 1980-04-22 1980-04-22 Control method for wheel with movable means

Country Status (1)

Country Link
JP (1) JPS56148685A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998003792A1 (en) * 1996-07-19 1998-01-29 Hitachi, Ltd. Pump-turbine system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998003792A1 (en) * 1996-07-19 1998-01-29 Hitachi, Ltd. Pump-turbine system

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