JPS5647680A - Method for stopping pump operation for pump water wheel - Google Patents

Method for stopping pump operation for pump water wheel

Info

Publication number
JPS5647680A
JPS5647680A JP12384979A JP12384979A JPS5647680A JP S5647680 A JPS5647680 A JP S5647680A JP 12384979 A JP12384979 A JP 12384979A JP 12384979 A JP12384979 A JP 12384979A JP S5647680 A JPS5647680 A JP S5647680A
Authority
JP
Japan
Prior art keywords
releasing
water
pump
stopping
generatormotor
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
JP12384979A
Other languages
Japanese (ja)
Other versions
JPS6155630B2 (en
Inventor
Takeo Hachitani
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 JP12384979A priority Critical patent/JPS5647680A/en
Publication of JPS5647680A publication Critical patent/JPS5647680A/en
Publication of JPS6155630B2 publication Critical patent/JPS6155630B2/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

Landscapes

  • Control Of Water Turbines (AREA)

Abstract

PURPOSE: To reduce the shock given to an electric power system for releasing greatly by introducing compressed air into a runner chamber to lower the level of water and releasing a generatormotor from the electric power system.
CONSTITUTION: For stopping the operation of a water wheel pump, at first, a guide vane 6 is perfectly closed, and compressed air is supplied from a feed valve 9 for lowering the level of water in a draft tube 4. By this lowering, a runner 1 is exposed above water to be brought to a racing state, and the input to a generatormotor 3 is greatly reduced. This situation is detected by a draft-pipe water level detector 11 for releasing the generatormotor 3, and the shock given to an electric system for releasing is reduced greatly. In this construction, these devices are protected from the shortening of lives caused by the ordinary stopping of the operation of the pump.
COPYRIGHT: (C)1981,JPO&Japio
JP12384979A 1979-09-28 1979-09-28 Method for stopping pump operation for pump water wheel Granted JPS5647680A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12384979A JPS5647680A (en) 1979-09-28 1979-09-28 Method for stopping pump operation for pump water wheel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12384979A JPS5647680A (en) 1979-09-28 1979-09-28 Method for stopping pump operation for pump water wheel

Publications (2)

Publication Number Publication Date
JPS5647680A true JPS5647680A (en) 1981-04-30
JPS6155630B2 JPS6155630B2 (en) 1986-11-28

Family

ID=14870910

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12384979A Granted JPS5647680A (en) 1979-09-28 1979-09-28 Method for stopping pump operation for pump water wheel

Country Status (1)

Country Link
JP (1) JPS5647680A (en)

Also Published As

Publication number Publication date
JPS6155630B2 (en) 1986-11-28

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