JPS5569770A - Pump turbine control device - Google Patents

Pump turbine control device

Info

Publication number
JPS5569770A
JPS5569770A JP14235478A JP14235478A JPS5569770A JP S5569770 A JPS5569770 A JP S5569770A JP 14235478 A JP14235478 A JP 14235478A JP 14235478 A JP14235478 A JP 14235478A JP S5569770 A JPS5569770 A JP S5569770A
Authority
JP
Japan
Prior art keywords
guide vane
piston
pipe path
control device
stopper
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.)
Granted
Application number
JP14235478A
Other languages
Japanese (ja)
Other versions
JPS629748B2 (en
Inventor
Hisao Kuwabara
Hiroshi Okumura
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP14235478A priority Critical patent/JPS5569770A/en
Publication of JPS5569770A publication Critical patent/JPS5569770A/en
Publication of JPS629748B2 publication Critical patent/JPS629748B2/ja
Granted 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

Abstract

PURPOSE: To close a guide vane properly at the time of emergency, by restricting the closing speed of the guide vane below a fixed value, when a guide vane control device failed, in a pump turbine having S characteristics.
CONSTITUTION: When a load cutoff signal is given to a speed adjuster, control oil pressure 20 is discharged from main distributing valve 19 and relay servo motor piston 17 descends. Then, pressure oil is drawn into pipe path 22, and pipe path 21 is led to oil discharge pipe path 23, and guide vane servo motor piston 25 is operated in the closing direction. Subsequently, when it is detected that the S characteristics are moving toward the direction of decreasing flow, electromagnet S1 is energized, stopper 5 is pulled up by lever 6, and piston 25 is operated in the opening direction. Also, when the power supply failed at this time, piston 8 moves up with the release of electromagnets S1 and S2, stopper 10 is checked by lever 11, and the closing speed of the guide vane is reduced.
COPYRIGHT: (C)1980,JPO&Japio
JP14235478A 1978-11-20 1978-11-20 Pump turbine control device Granted JPS5569770A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14235478A JPS5569770A (en) 1978-11-20 1978-11-20 Pump turbine control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14235478A JPS5569770A (en) 1978-11-20 1978-11-20 Pump turbine control device

Publications (2)

Publication Number Publication Date
JPS5569770A true JPS5569770A (en) 1980-05-26
JPS629748B2 JPS629748B2 (en) 1987-03-02

Family

ID=15313414

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14235478A Granted JPS5569770A (en) 1978-11-20 1978-11-20 Pump turbine control device

Country Status (1)

Country Link
JP (1) JPS5569770A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103306888A (en) * 2013-06-21 2013-09-18 国家电网公司 Hydraulic control type main pressure distributing valve with sequence closing function
US8714814B2 (en) 2009-07-14 2014-05-06 Eta Sa Manufacture Horlogere Suisse Device for locking a timepiece movement
CN107110104A (en) * 2014-12-04 2017-08-29 通用电气再生能源技术公司 Equipment for the method for the rotary speed of the stable hydraulic press with S characteristics and for hydraulic energy to be converted into electric energy

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8714814B2 (en) 2009-07-14 2014-05-06 Eta Sa Manufacture Horlogere Suisse Device for locking a timepiece movement
CN103306888A (en) * 2013-06-21 2013-09-18 国家电网公司 Hydraulic control type main pressure distributing valve with sequence closing function
CN107110104A (en) * 2014-12-04 2017-08-29 通用电气再生能源技术公司 Equipment for the method for the rotary speed of the stable hydraulic press with S characteristics and for hydraulic energy to be converted into electric energy

Also Published As

Publication number Publication date
JPS629748B2 (en) 1987-03-02

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