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KR910005059A - Determination method and apparatus of power line - Google Patents

Determination method and apparatus of power line Download PDF

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Publication number
KR910005059A
KR910005059A KR1019900013092A KR900013092A KR910005059A KR 910005059 A KR910005059 A KR 910005059A KR 1019900013092 A KR1019900013092 A KR 1019900013092A KR 900013092 A KR900013092 A KR 900013092A KR 910005059 A KR910005059 A KR 910005059A
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South Korea
Prior art keywords
power line
signal
deterioration
sensors
determination device
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KR1019900013092A
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Korean (ko)
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KR100238895B1 (en
Inventor
테루노부 미야자기
에이 사브로 사고우
가즈오 니시지마
미쯔루 나까무라
하지메 나가이
Original Assignee
미다 가쓰시게
가부시기가이샤 히다찌세이사꾸쇼
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Publication of KR910005059A publication Critical patent/KR910005059A/en
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/08—Locating faults in cables, transmission lines, or networks
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/08—Locating faults in cables, transmission lines, or networks
    • G01R31/088—Aspects of digital computing

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Locating Faults (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)

Abstract

내용 없음.No content.

Description

전력선의 열화판정 방법 및 장치Determination method and apparatus of power line

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제1도는 본 발명의 개략적인 구조를 나타낸 도면.1 shows a schematic structure of the present invention.

제2도는 본 발명의 지락의 전구형상(Precursory phenomena)을 설명하기 위한 도.2 is a view for explaining the precursor shape (Precursory phenomena) of the present invention.

제3도는 지락사고가 발생했을 때 영상(Zero-Phase)신호를 나타낸 도.3 is a diagram illustrating a zero-phase signal when a ground fault occurs.

Claims (9)

전력선상의 복수의 지점에 배치되고 상기 지점에서 영상신호를 검출하고 상기 영상신호에 포함된 펄스신호를 관측하는 복수의 센서와, 상기 복수의 센서에 따라 펄스신호의 최대치를 표시하는 센서가 배치된 위치 부근에서 열화의 유무를 판전하는 판정장치로 이루어진 전력선의 열화위치 판정장치.A plurality of sensors disposed at a plurality of points on the power line, detecting a video signal at the point, observing a pulse signal included in the video signal, and a sensor displaying a maximum value of the pulse signal according to the plurality of sensors A deterioration position determination device of a power line, comprising a determination device that determines whether or not there is deterioration in the vicinity. 제1항에 있어서, 복수의 센서와 복수의 센서에 의해 얻어진 펄스신호를 전송하기 위한 상기 판정장치 사이에 배치된 신호전송 수단을 더 구비하는 것을 특징으로 하는 전력선의 열화위치 판정장치.2. An apparatus for determining a deterioration position of a power line according to claim 1, further comprising signal transmission means disposed between a plurality of sensors and the determination device for transmitting pulse signals obtained by the plurality of sensors. 제1항에 있어서, 상기 복수의 센서가 상기 복수의 지점에서 상기 영상신호에 포함된 특정주파수의 고주파 성분의 크기를 관측하는 것을 특징으로 하는 전력선의 열화위치 판정장치.2. The apparatus of claim 1, wherein the plurality of sensors observe the magnitudes of the high frequency components of a specific frequency included in the video signal at the plurality of points. 제3항에 있어서, 복수의 센서에 의해 검축된 고주파 신호의 특정 주파수가 영상신호에 포함된 5KHz 내지 2000KHz의 범위인 것을 특징으로 하는 전력선의 열화위치 판정장치.4. The apparatus of claim 3, wherein the specific frequency of the high frequency signal detected by the plurality of sensors is in the range of 5 KHz to 2000 KHz included in the video signal. 제1항에 있어서, 3상 전력선에서 영상신호를 검출하는 상기 센서가 3상 전력선의 각 상과 접지 사이에 제공되어 장치된 콘덴서와 저항으로 구성된 직렬회로와, 콘덴서와 저항 사이에 신호를 도출하기 위해 배치된 단자로 이루어지는 것을 특징으로하는 전력선의 열화위치 판정장치.The method of claim 1, wherein the sensor for detecting an image signal on a three-phase power line is provided between each phase and ground of the three-phase power line to derive a signal between the capacitor and the series circuit composed of a capacitor and a resistor. Deterioration position determination device of the power line, characterized in that consisting of terminals arranged for. 제2항에 있어서, 스위치가 전력선에 영상신호를 검출하는 복수의 센서의 부근에 배치되고, 상기 판정장치가 복수의 펄스신호의 크기에 의지하여 전력선의 열화위치를 지정하고 출력하기 위한 수단과, 신호전송 수단을 거쳐 상기 스위치에 대한 조작신호를 발생하기 위한 수단을 포함하고, 상기 복수의 센서가 각각 수신된 스위치에 대한 조작신호에 응답하여 상기 스위치를 작동시키는 수단을 구비하는 것을 특징으로 하는 전력선의 열화위치 판정장치.3. The apparatus according to claim 2, wherein a switch is disposed in the vicinity of the plurality of sensors detecting the video signal on the power line, and the determination device specifies and outputs the degradation position of the power line in dependence on the magnitudes of the plurality of pulse signals; Means for generating an operation signal for the switch via a signal transmission means, wherein the plurality of sensors each have means for operating the switch in response to an operation signal for the received switch; Deterioration position determination device. 제6항에 있어서, 전력선에서 관측된 영상신호에 포함된 펄스신호에 응답하여 전력선의 열화 또는 열화위치와, 펄스신호등의 발생원인에 관한 기타의 정보를 출력하는 것을 특징으로 하는 전력선의 열화위치 판정장치.7. The deterioration position determination of a power line according to claim 6, wherein the deterioration position of the power line is output in response to the pulse signal included in the video signal observed from the power line, and other information about the cause of the power line deterioration or deterioration and the cause of the pulse signal. Device. 제6항에 있어서, 전력선상의 복수의 점에서 영상신호에 포함된 펄스신호의 크기를 관측하고, 해당하는 상기 진폭의 크기로 위치를 지정할때 열화위치 부근의 스위치를 개방하고, 상기 각 스위치에 의해 분리된 양단으로 전력선에 전력을 공급하는 것을 특징으로하는 전력선의 열화위치 판정장치.The method according to claim 6, wherein the magnitude of the pulse signal included in the video signal is observed at a plurality of points on the power line, and the switch near the deterioration position is opened when the position is designated by the magnitude of the corresponding amplitude, Deterioration position determination device of the power line, characterized in that to supply power to the power line at both ends separated. 복수의 지점에 전력선에 포함된 영상신호의 펄스신호에 응답하여 위치가 지정될 때 열화위치 부근의 전력선과 전기기계를 재배치하는 것을 특징으로 하는 전력선의 열화위치 판정방법.A method for determining the deterioration position of a power line, characterized in that the power line and the electric machine near the deterioration position are rearranged when the position is specified in response to a pulse signal of an image signal included in the power line at a plurality of points. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019900013092A 1989-08-25 1990-08-24 Degradation judgment device of three-phase power line Expired - Fee Related KR100238895B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP89-217366 1989-08-25
JP1217366A JP3039936B2 (en) 1989-08-25 1989-08-25 Power line degradation determination method and device
JP1-217366 1989-08-25

Publications (2)

Publication Number Publication Date
KR910005059A true KR910005059A (en) 1991-03-29
KR100238895B1 KR100238895B1 (en) 2000-01-15

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KR1019900013092A Expired - Fee Related KR100238895B1 (en) 1989-08-25 1990-08-24 Degradation judgment device of three-phase power line

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JP (1) JP3039936B2 (en)
KR (1) KR100238895B1 (en)
CN (1) CN1017829B (en)
DE (1) DE4026428C2 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100418195B1 (en) * 2001-07-05 2004-02-11 주식회사 우리기술 Apparatus and method for multi-testing insulation of power cables
KR100719138B1 (en) 2007-03-15 2007-05-18 주식회사 젤파워 How to diagnose water distribution equipment failure
JP2015073237A (en) * 2013-10-04 2015-04-16 株式会社東芝 Communication system and communication device
KR101762505B1 (en) 2015-09-14 2017-07-28 아주대학교산학협력단 Apparatus for cable inspection
CN110705038B (en) * 2019-09-10 2023-09-26 国网浙江省电力有限公司嘉兴供电公司 A high-voltage circuit breaker life cycle assessment and fault early warning method
CN110673024B (en) * 2019-09-10 2022-05-13 国网浙江省电力有限公司嘉兴供电公司 A high-voltage circuit breaker fault early warning method based on the power Internet of things
JP2021081398A (en) * 2019-11-22 2021-05-27 パナソニックＩｐマネジメント株式会社 Abnormality detection system, distribution board, abnormality detection method, and program
JP7592997B2 (en) * 2020-03-24 2024-12-03 株式会社戸上電機製作所 Earth fault relay, earth fault cause estimation method, program, and estimation standard generation method

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54155442A (en) * 1978-05-29 1979-12-07 Nissin Electric Co Ltd Insulation deterioration detector for electric appliances
JPS5544976A (en) * 1978-09-27 1980-03-29 Sumitomo Electric Ind Ltd Trouble shooter for power cable
JPS5720779A (en) * 1980-07-11 1982-02-03 Matsushita Electric Ind Co Ltd Image display unit
JPS5720778A (en) * 1980-07-11 1982-02-03 Matsushita Electric Ind Co Ltd Image display unit
JPS5915870A (en) * 1982-07-16 1984-01-26 Mitsubishi Electric Corp Apparatus for measuring partial discharge
DE3636367C2 (en) * 1986-10-25 1995-07-13 Licentia Gmbh Method and device for determining the distance and direction of earth faults in isolated and compensated power networks
GB8727490D0 (en) * 1987-11-24 1987-12-23 Nat Res Dev Detecting faults in transmission circuits

Also Published As

Publication number Publication date
KR100238895B1 (en) 2000-01-15
CN1017829B (en) 1992-08-12
JPH0382326A (en) 1991-04-08
JP3039936B2 (en) 2000-05-08
CN1049761A (en) 1991-03-06
DE4026428C2 (en) 1994-10-13
DE4026428A1 (en) 1991-02-28

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