JPS6477705A - Steam turbine controller - Google Patents

Steam turbine controller

Info

Publication number
JPS6477705A
JPS6477705A JP23110187A JP23110187A JPS6477705A JP S6477705 A JPS6477705 A JP S6477705A JP 23110187 A JP23110187 A JP 23110187A JP 23110187 A JP23110187 A JP 23110187A JP S6477705 A JPS6477705 A JP S6477705A
Authority
JP
Japan
Prior art keywords
free test
output signal
stem free
detector
imp
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
JP23110187A
Other languages
Japanese (ja)
Inventor
Yasushi Tsuji
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP23110187A priority Critical patent/JPS6477705A/en
Publication of JPS6477705A publication Critical patent/JPS6477705A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To prevent rapid increase and decrease in a turbine output when abnormality is recognized during a stem free test by inputting respective outputs from a turbine output deviation detector or an IMP operation exception detector, to a stem free test retaining circuit, and thereby canceling the stem free test. CONSTITUTION:An output signal from a load setting device 1 and an output signal from an IMP detector 2 are both input to turbine output deviation detector 16 through an arithmometer 19. When the deviation between those two signals exceeds a predetermined value, the turbine output deviation detector circuit 16 judges that rapid increase and decrease in the turbine output are generated, so as output signal is transmitted to a stem free test retaining circuit 18. In this case, the retaining circuit 18 restores a change-over switch 6 and makes an input signal to a computing element 7 zero so as to retain the output signal and cancel the stem free test. Also, an IMP operation exception detector 17, when IMP operation is excepted during the stem free test, transmits an output signal to the retaining circuit 18 and retains an output signal from the computing element 7 so as to cancel the stem free test.
JP23110187A 1987-09-17 1987-09-17 Steam turbine controller Pending JPS6477705A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23110187A JPS6477705A (en) 1987-09-17 1987-09-17 Steam turbine controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23110187A JPS6477705A (en) 1987-09-17 1987-09-17 Steam turbine controller

Publications (1)

Publication Number Publication Date
JPS6477705A true JPS6477705A (en) 1989-03-23

Family

ID=16918314

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23110187A Pending JPS6477705A (en) 1987-09-17 1987-09-17 Steam turbine controller

Country Status (1)

Country Link
JP (1) JPS6477705A (en)

Similar Documents

Publication Publication Date Title
JPS648465A (en) Tri-state bus circuit
ES8303571A1 (en) Sensor arrangement for a washing machine.
JPS6477705A (en) Steam turbine controller
GB1489921A (en) Railway control systems
JPS55131810A (en) Programmable sequencer
JPS54103976A (en) Logical circuit diagnoser
JPS6457302A (en) Sequence controller
JPS5455141A (en) Diagnosing shift circuit
JPS5338944A (en) Abnormality detector
JPS54104883A (en) Bearing abnormality detecting device
JPS6480706A (en) Turbine control device
JPS52103933A (en) Trouble-shooter of redundancy logic circuit
JPS57166518A (en) Electronic weighing machine
JPS57105053A (en) Integrated circuit which has incorporated testing circuit for fault detecting circuit
JPS6462736A (en) Error detecting circuit
JPS55115145A (en) Failure diagnosis unit for computer control system
JPS57134712A (en) Digital controller
JPS6418804A (en) Self-diagnosis device for controller
JPS55124849A (en) Error detection control system
JPS57139815A (en) Fault diagnostic device
JPS6426901A (en) Control output switch device for duplex system
JPS5636751A (en) Error detection system
JPS5723156A (en) Fault monitoring system of information processor
JPS5786925A (en) Malfunction detection system
JPS55144399A (en) Safety control device of press