JPS54137507A - Protector for steam turbine from fall in main steam temperature - Google Patents
Protector for steam turbine from fall in main steam temperatureInfo
- Publication number
- JPS54137507A JPS54137507A JP4514778A JP4514778A JPS54137507A JP S54137507 A JPS54137507 A JP S54137507A JP 4514778 A JP4514778 A JP 4514778A JP 4514778 A JP4514778 A JP 4514778A JP S54137507 A JPS54137507 A JP S54137507A
- Authority
- JP
- Japan
- Prior art keywords
- fall
- main steam
- steam temperature
- temperature
- calculation unit
- 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
Landscapes
- Control Of Turbines (AREA)
Abstract
PURPOSE: To assure the safety of a steam turbine, by always supervising the fall in the main steam temperature through a plurality of lines and by raising an alram through the line which has earliest detected the abnormal fall in the main steam temperature of tripping the turbine when the abnormal fall is detected.
CONSTITUTION: The main steam temperature detected by a temperature detector 1 is changed into a voltage signal by a temperature-voltage converter 2. The voltage signal is applied to a calculator 3, which comprises a first calculation unit 4 which calculates the fall in the main steam temperature within a prescribed time, a second calculation unit 5 which compares said fall in the main steam temperature with an allowable value at predetermined time, and a third calculation unit 6 having a higher value priority circuit which generates an alarm signal or a turbine trip signal in response to a signal from the second calculation unit 5.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4514778A JPS54137507A (en) | 1978-04-17 | 1978-04-17 | Protector for steam turbine from fall in main steam temperature |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4514778A JPS54137507A (en) | 1978-04-17 | 1978-04-17 | Protector for steam turbine from fall in main steam temperature |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54137507A true JPS54137507A (en) | 1979-10-25 |
Family
ID=12711160
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4514778A Pending JPS54137507A (en) | 1978-04-17 | 1978-04-17 | Protector for steam turbine from fall in main steam temperature |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54137507A (en) |
-
1978
- 1978-04-17 JP JP4514778A patent/JPS54137507A/en active Pending
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