JPS5637567A - Noise rejection system in corona detection apparatus - Google Patents

Noise rejection system in corona detection apparatus

Info

Publication number
JPS5637567A
JPS5637567A JP11397779A JP11397779A JPS5637567A JP S5637567 A JPS5637567 A JP S5637567A JP 11397779 A JP11397779 A JP 11397779A JP 11397779 A JP11397779 A JP 11397779A JP S5637567 A JPS5637567 A JP S5637567A
Authority
JP
Japan
Prior art keywords
peak
signal
output
polarity
noise
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.)
Granted
Application number
JP11397779A
Other languages
Japanese (ja)
Other versions
JPS6229033B2 (en
Inventor
Toshikatsu Tanaka
Kazuo Maruoka
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.)
TOYO ELECTRON KK
TOYO ELECTRONICS KK
Central Research Institute of Electric Power Industry
Original Assignee
TOYO ELECTRON KK
TOYO ELECTRONICS KK
Central Research Institute of Electric Power Industry
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 TOYO ELECTRON KK, TOYO ELECTRONICS KK, Central Research Institute of Electric Power Industry filed Critical TOYO ELECTRON KK
Priority to JP11397779A priority Critical patent/JPS5637567A/en
Publication of JPS5637567A publication Critical patent/JPS5637567A/en
Publication of JPS6229033B2 publication Critical patent/JPS6229033B2/ja
Granted legal-status Critical Current

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  • Testing Relating To Insulation (AREA)

Abstract

PURPOSE: To increase the effect of noise reduction, by digitizing the 1st and the 2nd pulse through peak detection, and performing the discrimination of signal and noise taking consideration into the combination of the polarity given to the digital signal.
CONSTITUTION: The 1st and 2nd analog pulses are introduced as the input of the 1st peak detector 6 and the 2nd peak detector 7 respectively from the analog pulse the 1st and 2nd signal lines L1, L2 of the sensor 3. If the polarity of peak of the 1st and 2nd analog pulses is positive, the 1st and 2nd peak detectors 6, 7 output the 1st and 2nd digital pulse outputs +PD1, +PD2, and if the peak polarity is negative, the digital pulse outputs -PD1, -PD2 are outputted, being introduced to the signal 1 noise discrimination logic circuit 8 at the next stage. The logic circuit 8 receives the combination of the output +PD1 and -PD2 or output PD1 and +PD2 as tube signals.
COPYRIGHT: (C)1981,JPO&Japio
JP11397779A 1979-09-05 1979-09-05 Noise rejection system in corona detection apparatus Granted JPS5637567A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11397779A JPS5637567A (en) 1979-09-05 1979-09-05 Noise rejection system in corona detection apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11397779A JPS5637567A (en) 1979-09-05 1979-09-05 Noise rejection system in corona detection apparatus

Publications (2)

Publication Number Publication Date
JPS5637567A true JPS5637567A (en) 1981-04-11
JPS6229033B2 JPS6229033B2 (en) 1987-06-24

Family

ID=14625948

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11397779A Granted JPS5637567A (en) 1979-09-05 1979-09-05 Noise rejection system in corona detection apparatus

Country Status (1)

Country Link
JP (1) JPS5637567A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57189074A (en) * 1981-05-18 1982-11-20 Showa Electric Wire & Cable Co Ltd Corona measuring method for power cable

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57189074A (en) * 1981-05-18 1982-11-20 Showa Electric Wire & Cable Co Ltd Corona measuring method for power cable
JPH0353583B2 (en) * 1981-05-18 1991-08-15 Showa Electric Wire & Cable Co

Also Published As

Publication number Publication date
JPS6229033B2 (en) 1987-06-24

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