JPS54137507A - Protector for steam turbine from fall in main steam temperature - Google Patents

Protector for steam turbine from fall in main steam temperature

Info

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
Application number
JP4514778A
Other languages
Japanese (ja)
Inventor
Etsuichi Hatano
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 JP4514778A priority Critical patent/JPS54137507A/en
Publication of JPS54137507A publication Critical patent/JPS54137507A/en
Pending legal-status Critical Current

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  • 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
JP4514778A 1978-04-17 1978-04-17 Protector for steam turbine from fall in main steam temperature Pending JPS54137507A (en)

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)

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