JPS5549582A - Apparatus for preventing abrupt closing of guide vane - Google Patents

Apparatus for preventing abrupt closing of guide vane

Info

Publication number
JPS5549582A
JPS5549582A JP12077978A JP12077978A JPS5549582A JP S5549582 A JPS5549582 A JP S5549582A JP 12077978 A JP12077978 A JP 12077978A JP 12077978 A JP12077978 A JP 12077978A JP S5549582 A JPS5549582 A JP S5549582A
Authority
JP
Japan
Prior art keywords
speed
damping
closing
caused
stroke
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
JP12077978A
Other languages
Japanese (ja)
Inventor
Kuniomi Kaminuma
Masao Kanamori
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 JP12077978A priority Critical patent/JPS5549582A/en
Publication of JPS5549582A publication Critical patent/JPS5549582A/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 that abnormal rise of water pressure is caused at the time when some trouble is caused with a slow-acting closing means, by detecting the closing speed at a second speed stroke and switching the damping of speed governor to a stronger damping in case that the closing speed is not normal.
CONSTITUTION: Limiter switches 1, 2 are arranged to be operated respectively at check points St1, St2 at a second speed stroke S2. In case that speed at the second speed stroke S2 is higher than the speed in normal operation, time period (t12) from the check point St1 to the check point St2 is shortened, so that liminter switches 1, 2 are actuated. This causes changeover of damping changeover switch 3, so that damping of speed governor is switched to a stronger damping. Therefore, if some trouble is caused with a slow-acting closing means, closing speed is made slower automatically, so that abnormal rise of water pressure can be prevented.
COPYRIGHT: (C)1980,JPO&Japio
JP12077978A 1978-09-30 1978-09-30 Apparatus for preventing abrupt closing of guide vane Pending JPS5549582A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12077978A JPS5549582A (en) 1978-09-30 1978-09-30 Apparatus for preventing abrupt closing of guide vane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12077978A JPS5549582A (en) 1978-09-30 1978-09-30 Apparatus for preventing abrupt closing of guide vane

Publications (1)

Publication Number Publication Date
JPS5549582A true JPS5549582A (en) 1980-04-10

Family

ID=14794790

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12077978A Pending JPS5549582A (en) 1978-09-30 1978-09-30 Apparatus for preventing abrupt closing of guide vane

Country Status (1)

Country Link
JP (1) JPS5549582A (en)

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