JPS56148685A - Control method for wheel with movable means - Google Patents
Control method for wheel with movable meansInfo
- Publication number
- JPS56148685A JPS56148685A JP5314980A JP5314980A JPS56148685A JP S56148685 A JPS56148685 A JP S56148685A JP 5314980 A JP5314980 A JP 5314980A JP 5314980 A JP5314980 A JP 5314980A JP S56148685 A JPS56148685 A JP S56148685A
- Authority
- JP
- Japan
- Prior art keywords
- shut
- operated
- vanes
- sensed
- emergency stop
- 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
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 3
- 230000003247 decreasing effect Effects 0.000 abstract 1
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 enable a safe termination of a major machine by a method wherein when a guide vane is not operated to close under an emergency stop, this codition is sensed and the runner vanes are fully opened, then the flowing water is shut off by other flow shut-off mechanism.
CONSTITUTION: Servo-motor 3 is operated to close under an instruction for closing the guide vanes 2 obtained from a water wheel governor in case of a shut-off of load or an emergency stop of the operation. At this time, a hydraulic pressure found in the servo motor 3 is sensed, and when the pressure is acknowledged as one lower than the predetermined hydraulic pressure, a solenoid for use in opening the runner vanes 4 is operated, and the runner vanes 4 are operated to occupy a maximum angle. Thereby, a centrifugal force acting upon the water wheel and the rotary body directly connected thereto is decreased to about 1/2 of the maximum nonrestricting speed, and at the same time the flowing stream is shut off by other flowing stream shut-off mechanism, thereby the main machine may safely be stopped.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5314980A JPS56148685A (en) | 1980-04-22 | 1980-04-22 | Control method for wheel with movable means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5314980A JPS56148685A (en) | 1980-04-22 | 1980-04-22 | Control method for wheel with movable means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS56148685A true JPS56148685A (en) | 1981-11-18 |
Family
ID=12934767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5314980A Pending JPS56148685A (en) | 1980-04-22 | 1980-04-22 | Control method for wheel with movable means |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56148685A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998003792A1 (en) * | 1996-07-19 | 1998-01-29 | Hitachi, Ltd. | Pump-turbine system |
-
1980
- 1980-04-22 JP JP5314980A patent/JPS56148685A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998003792A1 (en) * | 1996-07-19 | 1998-01-29 | Hitachi, Ltd. | Pump-turbine system |
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