KR100592845B1 - Detecting device for overhead transmission line fault location - Google Patents

Detecting device for overhead transmission line fault location Download PDF

Info

Publication number
KR100592845B1
KR100592845B1 KR1020040016997A KR20040016997A KR100592845B1 KR 100592845 B1 KR100592845 B1 KR 100592845B1 KR 1020040016997 A KR1020040016997 A KR 1020040016997A KR 20040016997 A KR20040016997 A KR 20040016997A KR 100592845 B1 KR100592845 B1 KR 100592845B1
Authority
KR
South Korea
Prior art keywords
current
accident
unit
detected
polarity
Prior art date
Application number
KR1020040016997A
Other languages
Korean (ko)
Other versions
KR20050091519A (en
Inventor
하체웅
이창영
오덕진
Original Assignee
엘에스전선 주식회사
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 엘에스전선 주식회사 filed Critical 엘에스전선 주식회사
Priority to KR1020040016997A priority Critical patent/KR100592845B1/en
Priority to JP2005025348A priority patent/JP2005257679A/en
Publication of KR20050091519A publication Critical patent/KR20050091519A/en
Application granted granted Critical
Publication of KR100592845B1 publication Critical patent/KR100592845B1/en

Links

Images

Classifications

    • 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
    • G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
    • G01R31/085—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution lines, e.g. overhead
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
    • G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
    • G01R15/18—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
    • G01R15/181—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers using coils without a magnetic core, e.g. Rogowski coils
    • 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
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
    • G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S10/00—Systems supporting electrical power generation, transmission or distribution
    • Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
    • Y04S10/52—Outage or fault management, e.g. fault detection or location

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Locating Faults (AREA)

Abstract

본 발명은 가공 송전선 낙뢰 및 사고지점 검출 장치에 관한 것으로, 더욱 상세하게는 로고스키 코일에 의해 송전선로에 흐르는 전류를 검출하고, 검출자료를 저장하여 제어부로 무선 전송하며, 사고거리를 계산하는 연산식에 관한 것이다.The present invention relates to an apparatus for detecting a lightning strike and an accident point of an overhead transmission line. More particularly, the present invention relates to an operation of detecting an electric current flowing through a transmission line by a Rogowski coil, storing the detection data, transmitting the detected data wirelessly, and calculating an accident distance. It's about equations.

상기와 같은 본 발명에 의하면, 평상전류와 일반 사고전류뿐 아니라 낙뢰에 의한 낙뢰전류도 검출할 수 있음은 물론, 사고거리를 계산할 수 있음으로 사고발생 시 사고구간을 신속하고 정확하게 판단할 수 있으며, 상황에 용이하게 대처할 수 있어 작업의 효율성을 향상시킬 수 있다.According to the present invention as described above, not only the normal current and the general accident current, but also can detect the lightning current due to lightning, as well as to calculate the accident distance can determine the accident section quickly and accurately when an accident occurs, Easily cope with the situation can improve the efficiency of the work.

가공 지선, 로고스키 코일, 적분부, 극성판별부Processing branch, Rogowski coil, integrating part, polarity discriminating part

Description

가공 송전선 낙뢰 및 사고지점 검출 장치{Detecting device for overhead transmission line fault location} Detecting device for overhead transmission line fault location             

도 1은 종래 가공 송전선의 사고구간 검출 장치를 도시한 도면이고,1 is a view showing an accident section detection apparatus of a conventional overhead transmission line,

도 2는 본 발명에 따른 가공 송전선 낙뢰 및 사고지점 검출 장치를 도시한 도면이다.2 is a view showing the overhead transmission line lightning and accident point detection apparatus according to the present invention.

< 도면의 주요 부분에 대한 부호의 설명 ><Description of Symbols for Main Parts of Drawings>

22 : 가공 지선 100 : 로고스키 코일22: processing branch line 100: Rogowski coil

110 : 적분부 120 : 극성판별부110: integral part 120: polarity discrimination part

130 : 자료전송장치 140 : 제어부130: data transmission device 140: control unit

본 발명은 검출장치에 관한 것으로, 더욱 상세하게는 송전선로가 지락 또는 단락되거나 낙뢰에 의한 지락사고가 발생될 경우 이를 검출하여 제어부에 무선으로 통보하고, 상기 통보자료에 의한 지락 또는 단락사고 및 낙뢰사고에 대한 대처를 용이하게 할 수 있는 가공 송전선 낙뢰 및 사고지점 검출 장치에 관한 것이다.The present invention relates to a detection apparatus, and more particularly, when a transmission line is grounded or shorted or a ground fault occurs due to a lightning strike, the controller detects it and wirelessly notifies the control unit. It relates to an overhead transmission line lightning and accident point detection device that can facilitate coping with an accident.

일반적으로, 송전선로는 전력공급을 위하여 발전소에서 생산되는 전력을 변전소를 통하여 각 지역으로 공급하기 위한 전력시설로서 현대사회에서 송전시설의 사고는 장시간의 전력공급중단에 직접 연결되어 사회적으로도 중대한 영향을 미치게 된다.In general, the transmission line is a power facility for supplying electric power produced by the power plant to substations through substations. In modern society, accidents of transmission facilities are directly connected to long-term power supply interruption and have a significant social impact. Get mad.

한편, 지상에 설치되는 송전선로는 일정 거리마다 설치된 송전탑 등에 의하여 지지되며, 이 송전선로는 전 지역에 걸쳐 광범위하게 시설되므로 바람, 눈, 비, 낙뢰 등에 의한 위험에 노출되어 있다.On the other hand, transmission lines installed on the ground are supported by transmission towers installed at predetermined distances, and these transmission lines are widely installed throughout the region, and thus are exposed to dangers such as wind, snow, rain, and lightning.

그리고, 송전선로의 사고는 예기치 못한 요인에 의해 지락 또는 단락되는 사고가 발생하거나 송전탑에 낙뢰가 직격됨에 따라 송전선로가 손상되는 낙뢰사고가 대부분을 차지하고 있으며, 이러한 낙뢰에 의한 낙뢰사고 발생 시 신속한 조치가 필요하게 되고, 사고가 발생되지 않도록 순시점검 등을 통한 예방조치가 필요하게 된다.In addition, most of the accidents in the transmission line are caused by a ground fault or a short circuit due to an unexpected factor or a lightning strike on the transmission tower. In order to prevent accidents, preventive measures such as instantaneous checks are required.

또한, 상기한 낙뢰사고에 의해 송전선이 단락된 경우 송전선에는 부하전류의 수배에서 수십배에 달하는 다량의 전류가 흐르게 되고, 이는 송전탑에 설치된 승압기 등 전기기기의 항장력을 약화시켜 해당 전기기기의 이상동작을 초래하게 한다.In addition, when a transmission line is shorted due to the above-mentioned lightning accident, a large amount of current flows in the transmission line several times to several tens of times of load current, which weakens the tension of an electrical device such as a booster installed in the transmission tower and causes abnormal operation of the corresponding electric device. Cause.

따라서, 송전탑에 지락 또는 단락사고 및 낙뢰사고가 발생된 경우 이를 신속히 검출하여 고장구간의 전기공급을 중단시키는 등 적절한 조치를 취할 필요가 있으며, 이를 위하여 사고구간 검출장치를 설치하여 사고에 대처하였다.Therefore, if a ground fault, short circuit or lightning strike occurs in the transmission tower, it is necessary to take appropriate measures such as detecting the power supply promptly and stopping the electricity supply in the failure section. For this purpose, an accident section detection device was installed to cope with the accident.

도 1은 종래 가공 송전선의 사고구간 검출 장치를 도시한 도면이다.1 is a view showing an accident section detection apparatus of a conventional overhead transmission line.

도면에서 도시한 바와 같이, 송전선로(20)를 지지하도록 다수개의 송전탑(10)이 형성되고, 상기 송전선로(20) 상에 전류 변환기(30)가 설치되며, 상기 전류 변환기(30)에 의해 검출된 전류를 저장하여 전송하는 전송장치(40)가 형성된다.As shown in the figure, a plurality of transmission towers 10 are formed to support the transmission line 20, the current converter 30 is installed on the transmission line 20, by the current converter 30 A transmission device 40 for storing and transmitting the detected current is formed.

상기 송전선로(20)는 송전탑(10)의 상측 끝단부를 지나는 가공 지선(22)과 중간 상부를 지나는 가공 송전선(24)으로 이루어지며, 상기 가공 지선(22)에는 상기 전류 변환기(30)가 설치된다.The transmission line 20 is composed of a processing branch line 22 passing through the upper end of the transmission tower 10 and the overhead transmission line 24 passing through the middle upper portion, the current converter 30 is installed in the processing branch line 22. do.

그리고, 상기 송전탑(10)의 소정 위치에 상기 전류 변환기(30)에 의해 검출된 전류를 저장하여 중앙 제어부(50)로 전송하도록 전송장치(40)가 설치된다.In addition, the transmission device 40 is installed to store the current detected by the current converter 30 at a predetermined position of the transmission tower 10 and transmit the stored current to the central control unit 50.

상기 전송장치(40)에는 수신장치(미 도시)가 형성되어 이상 전류가 발생하게 되면, 그 시간을 측정하여 중앙 제어부(50)로 전송한다.When a receiver (not shown) is formed in the transmitter 40 and an abnormal current is generated, the transmitter 40 measures the time and transmits it to the central controller 50.

그리고, 상기 중앙 제어부(50)에서는 상기 전송장치(40)에서 전송하는 전류의 파형과 수신장치에서 측정한 시간 등을 토대로 송전선로(20)의 지락 또는 단락된 구간을 측정하게 된다.In addition, the central controller 50 measures a ground fault or a shorted section of the transmission line 20 based on the waveform of the current transmitted from the transmitter 40 and the time measured by the receiver.

그러나, 상기 전류 변환기(30)는 철심의 히스테리시스 특성 때문에 설계보다 큰 전류가 가공 지선(22)에 흐를 경우 사고구간을 검출하기 곤란하고, 낙뢰와 같은 순간 발생되는 빠른 주파수의 전류에 대해서는 검출을 할 수 없는 문제점이 있었다.However, the current converter 30 is difficult to detect an accident section when a current larger than the design flows in the processing branch line 22 due to the hysteresis characteristics of the iron core, and detects a high frequency current generated at a moment such as a lightning strike. There was a problem that could not be.

그리고, 상기 검출장치는 사고에 의해 발생되는 전류가 검출되면 신호를 발 송하기 때문에 검출장치가 설치된 두 개의 송전탑 사이구간을 검사해야되는 문제점이 있었다.In addition, the detection device transmits a signal when a current generated by an accident is detected, so there is a problem in that a section between two transmission towers in which the detection device is installed has to be inspected.

이에 본 발명은 상기와 같은 문제점들을 해소하기 위해 안출된 것으로써, 로고스키 코일에 의해 송전선로에 흐르는 전류를 검출하여 지락 또는 단락사고 및 낙뢰사고로 인한 사고구간 및 사고지점을 측정하고, 신속하게 대처할 수 있도록 함으로 작업의 효율성을 향상시킬 수 있는 가공 송전선 낙뢰 및 사고지점 검출 장치를 제공하는 것이 목적이다.
Accordingly, the present invention has been made to solve the above problems, by detecting the current flowing in the transmission line by Rogowski coil to measure the accident section and the point of failure due to ground fault or short circuit and lightning accident, and quickly It is an object of the present invention to provide an overhead transmission line lightning and accident detection device that can improve the efficiency of work by coping with.

상기 목적을 이루기 위한 본 발명은, 전류가 흐르는 가공지선에 있어서, 상기 가공지선에 구비되며 전류를 검출하여 전압으로 출력하는 로고스키 코일과; 상기 로고스키 코일의 전압을 선택적으로 검출하도록 다수개 형성된 적분부와; 상기 적분부에 의한 전류의 극성에 따라 다른 신호를 출력하도록 다수개 형성된 극성판별부와; 상기 극성판별부에서 출력된 신호를 전송하는 자료전송부와; 상기 자료전송부의 신호에 의해 사고지점을 측정하는 제어부를 포함하여 이루어진다.In order to achieve the above object, the present invention provides a processing branch line through which a current flows, the Roskiski coil being provided on the processing branch line to detect a current and output the voltage; An integral part formed in plural to selectively detect the voltage of the Rogowski coil; A plurality of polarity discrimination units formed to output a different signal according to the polarity of the current by the integrating unit; A data transmitter for transmitting a signal output from the polarity discriminator; It includes a control unit for measuring the accident point by the signal of the data transmission unit.

바람직하게, 상기 적분부는 상기 로고스키 코일의 검출 전압 중 평상 및 사고에 의해 검출된 전압을 전류 파형으로 변형하도록 형성된 제1적분부와; 상기 로고스키 코일의 검출 전압 중 낙뢰에 의해 검출된 전압을 전류 파형으로 변형하도록 형성된 제2적분부로 이루어진다.Preferably, the integrating unit comprises: a first integrating unit configured to transform a voltage detected by normal and accident among the detected voltages of the Rogowski coil into a current waveform; And a second integrating unit configured to transform the voltage detected by the lightning strike among the detected voltages of the Rogowski coil into a current waveform.

그리고, 상기 극성판별부는 제1적분부에서 검출된 전류의 극성에 따라 다른 신호를 출력하도록 형성된 제1극성판별부와; 상기 제2적분부에서 검출된 전류의 극성에 따라 다른 신호를 출력하도록 형성된 제2극성판별부로 이루어진다.The polarity discriminating unit includes: a first polarity discriminating unit configured to output a signal different according to the polarity of the current detected by the first integrating unit; And a second polarity discriminating unit configured to output a signal different according to the polarity of the current detected by the second integrating unit.

상기와 같은 구성에 의하면, 평상전류와 사고전류 및 낙뢰전류를 측정할 수 있고, 상기 전류들을 측정하여 정확한 사고지점을 판단할 수 있으며, 사고지점의 정확한 판단에 의한 작업의 효율성을 향상시킬 수 있다.According to the above configuration, it is possible to measure the normal current, the accident current and the lightning current, to determine the correct accident point by measuring the current, it is possible to improve the efficiency of work by the accurate determination of the accident point. .

이하, 본 발명의 바람직한 실시예를 첨부된 도면을 참조하여 설명한다.Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

또한, 본 실시예는 본 발명의 권리범위를 한정하는 것은 아니고 단지 예시로 제시된 것이며, 그 기술적 요지를 이탈하지 않는 범위내에서 다양한 변경이 가능하다.In addition, the present embodiment is not intended to limit the scope of the present invention, but is presented by way of example only, and various modifications may be made without departing from the technical gist of the present invention.

도 2는 본 발명에 따른 가공 송전선 낙뢰 및 사고지점 검출 장치를 도시한 도면이다.2 is a view showing the overhead transmission line lightning and accident point detection apparatus according to the present invention.

도면에서 도시한 바와 같이, 검출장치는 가공 지선(22)에 흐르는 전류를 전압의 형태로 검출하는 로고스키 코일(100)이 형성되고, 상기 로고스키 코일(100)의 전압을 선택적으로 검출하도록 적분부(110)가 다수개 형성된다.As shown in the figure, the detection device is formed with a Rogowski coil 100 for detecting a current flowing in the processing branch line 22 in the form of a voltage, and integrally detecting the voltage of the Rogowski coil 100 selectively. A plurality of parts 110 is formed.

그리고, 상기 적분부(110)에서 변형된 전류의 극성을 판단하여 신호를 출력하는 극성판별부(120)가 형성된다.In addition, a polarity discrimination unit 120 for outputting a signal by determining the polarity of the current modified by the integrator 110 is formed.

상기 극성판별부(120)에서 출력된 신호는 자료전송부(130)에 저장되고, 상기 자료전송부(130)는 상기 자료를 제어부(140)로 무선 전송하게 된다.The signal output from the polarity discriminator 120 is stored in the data transmitter 130, and the data transmitter 130 wirelessly transmits the data to the controller 140.

이때, 상기 로고스키 코일(100)은 평상전류와 일반 사고전류 및 낙뢰에 의해 발생되는 낙뢰전류도 검출할 수 있도록 이루어진다.At this time, the Rogowski coil 100 is made to detect a normal current, a general accident current and a lightning current generated by lightning.

그리고, 상기 적분부(110)는 상기 로고스키 코일(100)의 검출 전압 중 평상 및 사고에 의해 검출된 전압을 전류 파형으로 변형시키는 제1적분부(112)가 형성되고, 상기 로고스키 코일(100)의 검출 전압 중 낙뢰에 의해 검출된 전압을 전류 파형으로 변형시키는 제2적분부(114)로 이루어진다.In addition, the integrating unit 110 is formed with a first integrating unit 112 for transforming the voltage detected by the normal and accident of the detected voltage of the Rogowski coil 100 into a current waveform, the Rogowski coil ( A second integrating unit 114 that transforms the voltage detected by the lightning among the detected voltages of the signal 100 into a current waveform.

또한, 상기 극성판별부(120)는 상기 적분부(110)의 변형 전류 중 평상 및 사고에 의해 검출된 전류의 극성을 판단하는 제1극성판별부(122)가 형성되고, 낙뢰에 의해 검출된 전류의 극성을 판단하도록 형성된 제2극성판별부(124)로 이루어진다.In addition, the polarity discriminating unit 120 is formed with a first polarity discriminating unit 122 for determining the polarity of the current detected by the normal and accident of the deformation current of the integrating unit 110, and detected by lightning The second polarity discriminating unit 124 is formed to determine the polarity of the current.

즉, 상기 제1적분부(112)에서 변형된 전류는 제1극성판별부(122)를 통하여 극성이 측정되고, 상기 제2적분부(114)에서 변형된 전류는 제2극성판별부(124)를 통하여 극성이 측정된다.That is, the current deformed in the first integrator 112 is measured for polarity through the first polar discriminator 122, and the current deformed in the second integrator 114 is the second polar discriminator 124. The polarity is measured by

상기 극성판별부(120)는 극성에 따라 다른 신호를 출력하게 되며, 상기 신호는 자료전송부(130)에서 저장하여 제어부(140)로 무선 전송하게 된다.The polarity discriminator 120 outputs a different signal according to the polarity, and the signal is stored in the data transmitter 130 and wirelessly transmitted to the controller 140.

상기와 같이 구성된 검출장치는 다수개 형성된 송전탑에 5~10개 간격으로 형성되며, 각 철탑에 각각 하나씩 설치됨이 바람직하다.The detection apparatus configured as described above is formed at intervals of 5 to 10 in a plurality of transmission towers, and each one is preferably installed in each steel tower.

상기 제어부(140)에서는 각 검출장치의 자료전송부(130)에서 전송하는 신호의 수신시간을 체크하고, 전류의 크기를 비교하여 정확한 사고지점을 계산하게 된다.The control unit 140 checks the reception time of the signal transmitted from the data transmission unit 130 of each detection device, and compares the magnitude of the current to calculate the exact accident point.

상기 사고지점의 계산은 수학식 1에 의해 계산된다.The accident point is calculated by Equation 1.

Figure 112004010416415-pat00001
Figure 112004010416415-pat00001

여기서, CT1 : 먼저 검출된 검출장치Where CT1: first detected detection device

CT2 : 나중에 검출된 검출장치        CT2: Detecting device detected later

CT1s : CT1의 검출시간        CT1s: CT1 detection time

CT2s : CT2의 검출시간        CT2s: CT2 detection time

L : CT1과 CT2의 거리[m]         L: Distance between CT1 and CT2 [m]

T : 전류의 시간당 전파속도[Hz/h] 이다.         T: The propagation speed [Hz / h] of current.

상기 사고거리(R)는 먼저, 이상 전류를 검출한 두 개의 검출장치(CT1, CT2)의 거리(L)를 2로 나눈 거리를 계산한다.The accident distance R first calculates a distance obtained by dividing the distance L of two detection devices CT1 and CT2 detecting abnormal currents by two.

그리고, 상기 전류의 시간당 전파속도(T)를 2로 나눈 다음 상기 검출장치(CT1, CT2)의 검출시간(CT1s, CT2s) 차를 곱한다.The current propagation speed T of the current is divided by two, and then the difference between the detection times CT1s and CT2s of the detection devices CT1 and CT2 is multiplied.

상기 검출장치(CT1, CT2)의 거리(L)를 2로 나눈거리에서 전류 전파속도(T)를 2로 나눈 수치에 검출시간(CT1s, CT2s)의 차를 곱한 수치를 빼 사고거리(R)를 계산한다.The accident distance (R) by subtracting the distance (L) of the detection devices (CT1, CT2) by 2 divided by the difference of the detection time (CT1s, CT2s) by the value of the current propagation speed (T) divided by 2 Calculate

상기 사고거리(R)의 수치는 이상전류를 먼저 검출한 검출장치(CT1)에서 사고지점이 상기 사고거리(R)만큼 떨어졌다는 것을 표시하게 된다.The numerical value of the accident distance R indicates that the accident point has fallen by the accident distance R in the detection device CT1 which detected the abnormal current first.

이때, 상기 사고거리(R)의 이동방향은 이상전류를 먼저 검출한 검출장치(CT1)에서 나중에 검출한 검출장치(CT2)방향으로 이동한다.At this time, the moving direction of the accident distance R moves from the detection device CT1 which detected the abnormal current first to the detection device CT2 detected later.

상기한 바와 같이, 본 발명에 의한 가공 송전선 낙뢰 및 사고지점 검출 장치에 의하면, 평상전류와 일반 사고전류뿐 아니라 낙뢰에 의한 낙뢰전류도 검출할 수 있음은 물론, 사고거리를 계산할 수 있음으로 사고발생 시 사고구간을 신속하고 정확하게 판단할 수 있으며, 상황에 용이하게 대처할 수 있어 작업의 효율성을 향상시킬 수 있게 하는 매우 유용하고 효과적인 발명이다.As described above, according to the overhead transmission line and the accident point detection apparatus according to the present invention, not only the normal current and the general accident current but also the lightning current due to the lightning can be detected, and the accident distance can be calculated. It is a very useful and effective invention that can quickly and accurately judge the accident zone of the city and can cope with the situation easily to improve the work efficiency.

Claims (4)

가공지선에 구비되며 전류를 검출하여 전압으로 출력하는 로고스키 코일과, 상기 로고스키 코일의 전압을 선택적으로 검출하도록 형성된 적분부와, 상기 적분부에 의한 전류의 극성에 따라 다른 신호를 출력하도록 다수개 형성된 극성판별부와, 상기 극성판별부에서 출력된 신호를 전송하는 자료전송부와, 상기 자료전송부의 신호에 의해 사고지점을 측정하는 제어부를 포함하여 이루어지는 가공 송전선 낙뢰 및 사고지점 검출 장치에 있어서,Rogowski coil is provided on the overhead line to detect the current and output the voltage, an integral part formed to selectively detect the voltage of the Rogowski coil, and a plurality of signals to output different signals according to the polarity of the current by the integral part In the formed transmission line lightning and accident point detection device comprising a polarity discrimination unit, a data transmission unit for transmitting the signal output from the polarity discrimination unit, and a control unit for measuring the accident point by the signal of the data transmission unit , 상기 적분부는 상기 로고스키 코일의 검출 전압 중 평상 및 사고에 의해 검출된 전압을 전류 파형으로 변형하도록 형성된 제1적분부와, 상기 로고스키 코일의 검출 전압 중 낙뢰에 의해 검출된 전압을 전류 파형으로 변형하도록 형성된 제2적분부로 이루어지고,The integrating unit is a first integrating unit configured to transform a voltage detected by normal and accident among the detected voltages of the Rogowski coil into a current waveform, and a voltage detected by a lightning strike among the detected voltages of the Rogowski coil as a current waveform. A second integrator formed to deform, 상기 극성판별부는 제1적분부에서 검출된 전류의 극성에 따라 다른 신호를 출력하도록 형성된 제1극성판별부와, 상기 제2적분부에서 검출된 전류의 극성에 따라 다른 신호를 출력하도록 형성된 제2극성판별부로 이루어지는 것을 특징으로 하는 가공 송전선 낙뢰 및 사고지점 검출 장치.The polarity discriminating unit is configured to output a different signal according to the polarity of the current detected by the first integrating unit, and a second polarization unit is formed to output a different signal according to the polarity of the current detected by the second integrating unit. An overhead transmission line lightning and accident point detection device comprising a polarity discrimination unit. 삭제delete 삭제delete 제 1항에 있어서,The method of claim 1, 상기 제어부에서 사고거리 측정을 위한 연산식이Formula for measuring the accident distance in the control unit
Figure 112004010416415-pat00002
인 것을 특징으로 하는 가공 송전선 낙뢰 및 사고지점 검출 장치.
Figure 112004010416415-pat00002
Overhead transmission line lightning and accident point detection device characterized in that. (여기서, CT1 : 먼저 검출된 검출장치(Here, CT1: first detection device detected CT2 : 나중에 검출된 검출장치         CT2: Detecting device detected later CT1s : CT1의 검출시간         CT1s: CT1 detection time CT2s : CT2의 검출시간         CT2s: CT2 detection time L : CT1과 CT2의 거리[m]          L: Distance between CT1 and CT2 [m] T : 전류의 시간당 전파속도[Hz/h] 이다.)          T: The propagation speed per hour [Hz / h].)
KR1020040016997A 2004-03-12 2004-03-12 Detecting device for overhead transmission line fault location KR100592845B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020040016997A KR100592845B1 (en) 2004-03-12 2004-03-12 Detecting device for overhead transmission line fault location
JP2005025348A JP2005257679A (en) 2004-03-12 2005-02-01 Lightning strike and accident position detector in worked transmission line

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020040016997A KR100592845B1 (en) 2004-03-12 2004-03-12 Detecting device for overhead transmission line fault location

Publications (2)

Publication Number Publication Date
KR20050091519A KR20050091519A (en) 2005-09-15
KR100592845B1 true KR100592845B1 (en) 2006-06-23

Family

ID=35083515

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020040016997A KR100592845B1 (en) 2004-03-12 2004-03-12 Detecting device for overhead transmission line fault location

Country Status (2)

Country Link
JP (1) JP2005257679A (en)
KR (1) KR100592845B1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101093240B (en) * 2006-06-23 2010-07-21 郭玉章 Method for determining lightning strike point on electric power transmission line
KR100882727B1 (en) * 2006-10-17 2009-02-06 엘에스산전 주식회사 Apparatus for measuring current using rogowski sensor
JP5391420B2 (en) * 2009-02-24 2014-01-15 株式会社コエックス Surge current detection circuit
KR101030593B1 (en) * 2009-09-29 2011-04-21 한국전력공사 Distance relay apparatus, system and method for processing distance relay
CN104330706A (en) * 2014-11-20 2015-02-04 国家电网公司 Lightning stroke detector
KR101690377B1 (en) * 2014-11-20 2016-12-27 김진학 Multi-function surge managing system with an auto warning function
CN110488159B (en) * 2019-09-19 2024-03-22 广东电网有限责任公司 Application method of distribution network operation and maintenance monitoring equipment

Also Published As

Publication number Publication date
JP2005257679A (en) 2005-09-22
KR20050091519A (en) 2005-09-15

Similar Documents

Publication Publication Date Title
KR100766365B1 (en) delta;I GROUND FAULT PROTECTIVE RELAYING SYSTEM AND CONTROL METHOD IN DC TRACTION POWER SUPPLY SYSTEM
US10955448B2 (en) Method of wire break detection
AU2007271990B2 (en) An AC current sensor for measuring electric ac current in a conductor and an indicator system comprising such a sensor
US7191074B2 (en) Electric power monitoring and response system
KR100961899B1 (en) Detecting apparatus and the method of rail damage
KR20080082067A (en) Development of breakdown position confirmation device
KR100645167B1 (en) Detecting device for overhead transmission line fault location
KR100592845B1 (en) Detecting device for overhead transmission line fault location
KR100922632B1 (en) Fault distinction apparatus for power transmission/power distribution cable line
JP4142608B2 (en) Tree contact monitoring device for distribution lines
WO2006001566A1 (en) Ground overcurrent protection relay system for ungrounded dc power feed system and method of controlling the same
JP2008096336A (en) Simple detector of surge current
CN109444676A (en) Traveling wave fault positioning method based on touch Electric Field Mapping
JP2003172758A (en) Lightning strike detection section orientation method by transmission line failure section detection system
KR100699217B1 (en) The device of lightning stroke location
KR102227890B1 (en) Control system for emergency power system and method thereof
JP3844757B2 (en) Feeder fault location system
JP5127736B2 (en) Accident location detection system and accident section identification method
JP2866172B2 (en) Transmission line fault direction locating method
CN111307257B (en) Method and system for measuring weight of hump sliding vehicle
JP2002311077A (en) Transmission line accident section standardization device
JPH08189949A (en) Device for evaluating direction of fault of overhead transmission line
RU121083U1 (en) LEAKAGE CURRENT CONTROL DEVICE IN THE GROUNDING CIRCUIT OF THE SUPPORT STRUCTURE OF THE ELECTRIC TRANSMISSION LINES
JPS62124467A (en) Monitoring method for power transmission line
JPH03195977A (en) Fault locator for transmission line

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20130430

Year of fee payment: 8

FPAY Annual fee payment

Payment date: 20140616

Year of fee payment: 9

FPAY Annual fee payment

Payment date: 20150616

Year of fee payment: 10

FPAY Annual fee payment

Payment date: 20160616

Year of fee payment: 11

FPAY Annual fee payment

Payment date: 20170616

Year of fee payment: 12

FPAY Annual fee payment

Payment date: 20180618

Year of fee payment: 13

FPAY Annual fee payment

Payment date: 20190617

Year of fee payment: 14