JPS55160174A - Operation of hydraulic machinery - Google Patents

Operation of hydraulic machinery

Info

Publication number
JPS55160174A
JPS55160174A JP6620879A JP6620879A JPS55160174A JP S55160174 A JPS55160174 A JP S55160174A JP 6620879 A JP6620879 A JP 6620879A JP 6620879 A JP6620879 A JP 6620879A JP S55160174 A JPS55160174 A JP S55160174A
Authority
JP
Japan
Prior art keywords
area
machine
thrust
seizure
vanes
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
JP6620879A
Other languages
Japanese (ja)
Inventor
Fuminori Iwaki
Kenro Nakano
Akio Oguchi
Hisao Inoue
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 JP6620879A priority Critical patent/JPS55160174A/en
Publication of JPS55160174A publication Critical patent/JPS55160174A/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 prevent the generation of abnormal hydraulic thrust leading to the seizure of a thrust metal by giving a sudden stop to a machine when the opening relation between vanes is brought within a previously set area for stopping.
CONSTITUTION: For the opening relation between a guide vane and a runner vane, an unallowable area of hydraulic thrust is obtained for each power plant, and determined to be the area for stopping a machine. When the opening relation between two vanes is brought within the area, the machine is given a sudden stop. This construction serves to prevent the generation of abnormal hydraulic thrust leading to the seizure of a thrust metal effectively.
COPYRIGHT: (C)1980,JPO&Japio
JP6620879A 1979-05-30 1979-05-30 Operation of hydraulic machinery Pending JPS55160174A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6620879A JPS55160174A (en) 1979-05-30 1979-05-30 Operation of hydraulic machinery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6620879A JPS55160174A (en) 1979-05-30 1979-05-30 Operation of hydraulic machinery

Publications (1)

Publication Number Publication Date
JPS55160174A true JPS55160174A (en) 1980-12-12

Family

ID=13309179

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6620879A Pending JPS55160174A (en) 1979-05-30 1979-05-30 Operation of hydraulic machinery

Country Status (1)

Country Link
JP (1) JPS55160174A (en)

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