JPS5710354A - Suppressing method of no load voltage of electric precipitator - Google Patents

Suppressing method of no load voltage of electric precipitator

Info

Publication number
JPS5710354A
JPS5710354A JP8370580A JP8370580A JPS5710354A JP S5710354 A JPS5710354 A JP S5710354A JP 8370580 A JP8370580 A JP 8370580A JP 8370580 A JP8370580 A JP 8370580A JP S5710354 A JPS5710354 A JP S5710354A
Authority
JP
Japan
Prior art keywords
voltage
circuit
detected
discrimination
electric
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
JP8370580A
Other languages
Japanese (ja)
Inventor
Tadashi Oura
Norio Oota
Shigeo Kobayashi
Kimio Kitajima
Original Assignee
Origin Electric Co Ltd
Hitachi Plant Eng & Constr 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 Origin Electric Co Ltd, Hitachi Plant Eng & Constr Co Ltd filed Critical Origin Electric Co Ltd
Priority to JP8370580A priority Critical patent/JPS5710354A/en
Publication of JPS5710354A publication Critical patent/JPS5710354A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To suppress, with sure operation, a no load voltage state of an electric precipitator, by discriminating the generation of the no load state with a detected value of the electric current passing through the electric feeding circuit to the electric precipitator and the output-voltage of a high-voltage rectifier.
CONSTITUTION: A signal of DC output-voltage of a high-voltage rectifier 5, detected with a output-voltage detector 7, is inputted to a comparison-amplification circuit 14; and a signal, corresponding to the current passing through a feeding line detected with a electric current detector 13, is inputted to the circuit 14. In the circuit 14, estimated values of discrimination current and discrimination voltage are specified in advance; a limitting signal is sent, comparing these discrimination values with said detected signals respectively and only when said detected currents are kept lower than discrimination current and said detected voltage becomes higher than said discrimination voltage, to a phase-controlling circuit 9. This circuit 9 limits immediately the phase-control signal, to be impressed upon a thyristor-controlling part 3, to the small value specified in advance.
COPYRIGHT: (C)1982,JPO&Japio
JP8370580A 1980-06-20 1980-06-20 Suppressing method of no load voltage of electric precipitator Pending JPS5710354A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8370580A JPS5710354A (en) 1980-06-20 1980-06-20 Suppressing method of no load voltage of electric precipitator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8370580A JPS5710354A (en) 1980-06-20 1980-06-20 Suppressing method of no load voltage of electric precipitator

Publications (1)

Publication Number Publication Date
JPS5710354A true JPS5710354A (en) 1982-01-19

Family

ID=13809901

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8370580A Pending JPS5710354A (en) 1980-06-20 1980-06-20 Suppressing method of no load voltage of electric precipitator

Country Status (1)

Country Link
JP (1) JPS5710354A (en)

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