JPS5791381A - Starting method of water turbine - Google Patents

Starting method of water turbine

Info

Publication number
JPS5791381A
JPS5791381A JP55167464A JP16746480A JPS5791381A JP S5791381 A JPS5791381 A JP S5791381A JP 55167464 A JP55167464 A JP 55167464A JP 16746480 A JP16746480 A JP 16746480A JP S5791381 A JPS5791381 A JP S5791381A
Authority
JP
Japan
Prior art keywords
opening
rotary speed
runner
guide vane
load
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
JP55167464A
Other languages
Japanese (ja)
Inventor
Asami Sato
Masayasu Okada
Masanobu Araki
Katsumi Sakaguchi
Nobusuke Takagi
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 JP55167464A priority Critical patent/JPS5791381A/en
Publication of JPS5791381A publication Critical patent/JPS5791381A/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

Abstract

PURPOSE: To rapidly increase rotary speed of a runner and quickly pass the critical zone of its resonance speed, by opening a guide vane to a degree of no-load opening or larger degree than start opening when the rotary speed of the runner reaches the prescribed rotary speed.
CONSTITUTION: Rotary speed of a runner (not shown) is gradually increased with the opening of a guide vane (not shown) to reach a level in the vicinity of rotary speed Nn1 corresponding to the lower limit of a resonance critical zone, then a speed detecting relay 13-1 operates to excite a load limiter opening command relay 77R again at this point of time. In consequence, the guide vane is started to open further from its holding position of no-load opening and reaches a level of optionally determined opening. Then the guide vane is opened till a load limit position switch 77-mb2 is opened. In this way, rotary speed is rapidly increased to promptly pass the resonance critical zone of the runner, then a resonating time is reduced, thus starting operation of a water turbine can be safely performed.
COPYRIGHT: (C)1982,JPO&Japio
JP55167464A 1980-11-27 1980-11-27 Starting method of water turbine Pending JPS5791381A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55167464A JPS5791381A (en) 1980-11-27 1980-11-27 Starting method of water turbine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55167464A JPS5791381A (en) 1980-11-27 1980-11-27 Starting method of water turbine

Publications (1)

Publication Number Publication Date
JPS5791381A true JPS5791381A (en) 1982-06-07

Family

ID=15850156

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55167464A Pending JPS5791381A (en) 1980-11-27 1980-11-27 Starting method of water turbine

Country Status (1)

Country Link
JP (1) JPS5791381A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3683436A1 (en) * 2019-01-18 2020-07-22 GE Renewable Technologies Method for starting a hydroelectric turbine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3683436A1 (en) * 2019-01-18 2020-07-22 GE Renewable Technologies Method for starting a hydroelectric turbine
KR20200090139A (en) * 2019-01-18 2020-07-28 지이 르네와블 테크놀로지즈 Method for starting a hydroelectric turbine
CN111486048A (en) * 2019-01-18 2020-08-04 通用电气再生能源技术公司 Method for starting a hydroelectric turbine

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