KR101802159B1 - System for House Outdoor electric wire's Remote Inspection utilizing ICT - Google Patents
System for House Outdoor electric wire's Remote Inspection utilizing ICT Download PDFInfo
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- KR101802159B1 KR101802159B1 KR1020160099549A KR20160099549A KR101802159B1 KR 101802159 B1 KR101802159 B1 KR 101802159B1 KR 1020160099549 A KR1020160099549 A KR 1020160099549A KR 20160099549 A KR20160099549 A KR 20160099549A KR 101802159 B1 KR101802159 B1 KR 101802159B1
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- G—PHYSICS
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- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/16566—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
- G01R19/16571—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 comparing AC or DC current with one threshold, e.g. load current, over-current, surge current or fault current
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
- G01R19/2506—Arrangements for conditioning or analysing measured signals, e.g. for indicating peak values ; Details concerning sampling, digitizing or waveform capturing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
- G01R19/2513—Arrangements for monitoring electric power systems, e.g. power lines or loads; Logging
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R21/00—Arrangements for measuring electric power or power factor
- G01R21/06—Arrangements for measuring electric power or power factor by measuring current and voltage
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R21/00—Arrangements for measuring electric power or power factor
- G01R21/133—Arrangements for measuring electric power or power factor by using digital technique
- G01R21/1331—Measuring real or reactive component, measuring apparent energy
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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
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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
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
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- 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
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C19/00—Electric signal transmission systems
- G08C19/02—Electric signal transmission systems in which the signal transmitted is magnitude of current or voltage
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Abstract
Description
본 발명은 ICT 기반 원격 저압 옥내외 배선상태 점검시스템에 관한 것으로, 더욱 상세하게는 ICT를 활용하여 전선에서 발생하는 고장을 누설 에너지검출을 통해 정확히 검출하기 위한 ICT 기반 원격 저압 옥내외 배선상태 점검시스템에 관한 것이다.The present invention relates to an ICT-based remote low-voltage indoor / outdoor wiring condition checking system, and more particularly, to an ICT-based remote low-pressure indoor / outdoor wiring condition checking system for accurately detecting faults occurring in a wire using ICT .
종래, 국내등록특허 1424817호는 비선형 부하를 포함하는 전기회로에 있어서 직렬아크를 검출하는 장치에 관한 것으로서, 전원선으로부터 검출된 전압신호에 포함된 고주파 성분만을 통과시키는 고역통과 필터와, 고역통과 필터를 통과한 신호의 위상을 시프트하는 위상천이부와, 고역통과 필터를 통과한 신호에서 위상천이부를 통과한 신호를 감하여 아크 신호를 검출하는 프로세서를 포함하여 이루어진다.Conventionally, domestic patent No. 1424817 relates to an apparatus for detecting a series arc in an electric circuit including a nonlinear load, which comprises a high-pass filter for passing only a high-frequency component included in a voltage signal detected from a power source line, And a processor for detecting an arc signal by subtracting a signal having passed through the phase shifter from a signal having passed through the high-pass filter.
이러한 종래기술은 부하전류 파형의 특성을 분석하여 아크발생여부를 판별하고 있지만 판별식에서 부하임피던스는 사용에 따라 값이 변하게 되어 정확도 측면에서 문제가 있다.In this conventional technique, the arc is generated or not by analyzing the characteristics of the load current waveform. However, the load impedance of the discrimination equation varies depending on the use, which is problematic in terms of accuracy.
또한 기존의 아크차단기의 경우, 전류파형의 특징을 검출하여 여러 가지 부하특성에 따라 검출능력에 한계가 있었다.In the case of the conventional arc breaker, the detection capability is limited according to various load characteristics by detecting the characteristic of the current waveform.
따라서 근본적으로 아크발생여부를 측정하기 위해서 부하 측에서도 누전에너지를 감시하여 ICT기술과 접목하여 직렬아크뿐만 아니라 지락, 단락, 접촉불량, 반단선으로 인해 발생되는 에너지 누설을 감시하는 기술을 개발할 필요가 있다.Therefore, it is necessary to develop a technique to monitor leakage energy caused by ground fault, short circuit, contact failure, and semi-disconnection as well as serial arc by monitoring leakage energy at the load side in order to fundamentally measure arc occurrence .
본 발명의 목적은 ICT를 활용하여 전선에서 발생하는 직렬아크, 접촉불량, 지락, 단락고장 등을 누설 에너지로 검출하기 위한 ICT 기반 원격 저압 옥내외 배선상태 점검시스템을 제공함에 있다.SUMMARY OF THE INVENTION An object of the present invention is to provide an ICT-based remote low-voltage indoor / outdoor wiring condition check system for detecting a series arc, contact failure, ground fault, short circuit fault,
또한 ICT를 활용하여 검출한 결과를 관제센터로 고장내용을 통신하기 위한 ICT 기반 원격 저압 옥내외 배선상태 점검시스템을 제공함에도 있다.In addition, ICT-based remote low-voltage indoor / outdoor wiring condition check system is also provided for communicating the detected result using ICT to the control center.
이러한 기술적 과제를 달성하기 위한 ICT 기반 원격 저압 옥내외 배선상태 점검시스템은 부하 측의 선간 전압파형을 검출하는 부하전압 검출부; 전원 측의 선간 전압파형을 측정하고, 전원측 활선과 중성선의 전류파형을 측정하며, 상기 부하전압 검출부로부터 검출데이터를 입력받아 전원-부하측의 전압파형, 전류파형 및 누설전류를 분석하도록 하여 에너지 손실여부를 판단하는 분전함;을 포함한다.In order to achieve the above object, an ICT-based remote low-voltage indoor / outdoor wiring condition inspection system includes a load voltage detector for detecting a line-to-line voltage waveform on a load side; The voltage waveform of the power source side is measured, the current waveform of the power source side live wire and the neutral wire is measured, the detection data is received from the load voltage detection unit, and the voltage waveform, current waveform and leakage current of the power source- And a power distribution box for determining the power distribution.
바람직하게 부하전압 검출부는 부하측의 검출데이터를 상기 ICT Network로 송신하도록 하는 전압 송신부;를 포함할 수 있다.Preferably, the load voltage detecting unit may include a voltage transmitting unit for transmitting detection data on the load side to the ICT network.
또한 바람직하게 분전함은 전원측 선간전압을 측정하는 전원전압 검출부와, 전원측 활선과 중성선의 전류파형을 측정하는 전류 측정부와, ICT Network로부터 데이터를 전달받아 전원-부하의 전압파형과 전류파형을 분석하여 손실된 유효전력을 산출하여 고장여부를 판별하는 판단부와, 분전함의 구성을 제어하는 제어부를 포함할 수 있다.Preferably, the power distributing box further includes a power supply voltage detecting unit for measuring a line-to-line voltage on the power supply side, a current measuring unit for measuring a current waveform of the power supply side live wire and the neutral wire, and a voltage waveform and a current waveform of the power supply- A determination unit for determining a failure or failure by calculating the lost active power, and a control unit for controlling the configuration of the distribution box.
그리고 바람직하게 분전함은 전원측 선간전압을 측정하는 전원전압 검출부와, 전원측 활선과 중성선의 전류파형을 측정하는 전류 측정부와, ICT Network로부터 데이터를 전달받아 전원-부하의 전압파형과 전류파형을 분석하여 손실된 유효전력을 산출하여 고장여부를 판별하는 판단부와, 판단부의 고장여부를 관제센터로 송신하는 통신부와, 분전함의 구성을 제어하는 제어부를 포함할 수 있다.Preferably, the power distributing box includes a power supply voltage detecting unit for measuring a line-to-line voltage on the power supply side, a current measuring unit for measuring the current waveform of the power supply side live wire and the neutral wire, and a voltage waveform and a current waveform of the power supply- A determination unit for determining the failure by calculating the lost active power, a communication unit for transmitting a failure of the determination unit to the control center, and a control unit for controlling the configuration of the distribution box.
상술한 바에 의하면, 이동용 전자제품에 응용하였을 경우 제품에서 분전반까지의 전선손상과 반단선 및 트래킹에 따른 화재를 예방할 수 있으며, 콘센트에 적용할 경우 콘센트에서 분전반까지에서 발생되는 화재사고를 예방할 수 있다. 또한 분전반, 옥내배선, 콘센트, 제품에 걸쳐 구역을 나눠 적용할 경우 고장위치를 정확히 구별할 수 있는 효과가 있다.According to the above description, when applied to a portable electronic product, it is possible to prevent damage to a wire from a product to a distribution board, a fire due to a half-breaking and tracking, and a fire accident occurring from an outlet to a distribution board can be prevented . In addition, when the division is applied to the distribution board, the indoor wiring, the outlet, and the product, the fault location can be accurately distinguished.
도 1은 본 발명의 일실시예에 따른 ICT 기반 원격 저압 옥내외 배선상태 점검시스템의 구성을 나타낸 예시도이다.
도 2는 본 발명의 일실시예에 따른 ICT 기반 원격 저압 옥내외 배선상태 점검시스템의 동작을 나타낸 예시도이다.1 is a diagram illustrating a configuration of an ICT-based remote low-voltage indoor / outdoor wiring condition check system according to an embodiment of the present invention.
2 is a diagram illustrating an operation of an ICT-based remote low-voltage indoor / outdoor wiring condition check system according to an embodiment of the present invention.
본 발명의 구체적 특징 및 이점들은 첨부도면에 의거한 다음의 상세한 설명으로 더욱 명백해질 것이다. 이에 앞서 본 발명에 관련된 공지 기능 및 그 구성에 대한 구체적인 설명이 본 발명의 요지를 불필요하게 흐릴 수 있다고 판단되는 경우에는, 그 구체적인 설명을 생략하였음에 유의해야 할 것이다.Specific features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings. It is to be noted that the detailed description of known functions and constructions related to the present invention is omitted when it is determined that the gist of the present invention may be unnecessarily blurred.
본 발명의 일실시예에 따른 ICT 기반 원격 저압 옥내외 배선상태 점검시스템은 아크발생여부를 측정하기 위해서 부하측에서도 누설에너지를 감시하여 ICT기술과 접목하여 직렬아크뿐만 아니라 지락, 단락, 접촉불량, 반단선으로 인해 발생되는 에너지 누설을 감시하는데 특징이 있다. The ICT-based remote low-voltage indoor / outdoor wiring condition check system according to an embodiment of the present invention monitors leakage energy at the load side to measure an arc, and combines it with ICT technology to detect not only a series arc but also a ground fault, It is characterized by monitoring energy leakage caused by disconnection.
이하, 첨부 도면을 참조하여 설명하면 다음과 같다.Hereinafter, the present invention will be described with reference to the accompanying drawings.
도 1은 본 발명의 일실시예에 따른 ICT 기반 원격 저압 옥내외 배선상태 점검시스템의 구성도이다. 1 is a configuration diagram of an ICT-based remote low-pressure indoor / outdoor wiring condition check system according to an embodiment of the present invention.
도 1에 도시된 바와 같이, 본 발명의 일실시예에 따른 ICT 기반 원격 저압 옥내외 배선상태 점검시스템은 콘센트(100), 분전함(200), 관제센터(300)를 포함할 수 있다.1, an ICT-based remote low-voltage indoor / outdoor wiring condition check system according to an embodiment of the present invention may include an outlet 100, a distribution box 200, and a control center 300. [
콘센트(100)는 부하 측의 선간 전압파형을 검출하는 기능을 수행한다. The receptacle 100 performs a function of detecting a line-to-line voltage waveform on the load side.
이러한 기능을 수행하기 위한 콘센트(100)는 부하전압 검출부(110), 전압송신부(120)를 포함한다.The socket 100 for performing such a function includes a load voltage detection unit 110 and a voltage transmission unit 120.
부하전압 검출부(110)는 부하 측의 선간 전압파형을 검출하는 구성이다.The load voltage detection unit 110 is configured to detect the line-to-line voltage waveform on the load side.
전압 송신부(120)는 검출된 전압값을 ICT Network로 송신하도록 하는 구성이다.The voltage transmitter 120 is configured to transmit the detected voltage value to the ICT network.
분전함(200)은 콘센트로부터 ICT Network를 통해 데이터를 입력받아 전원-부하측의 선간 전압파형, 전류파형, 누설전류를 분석하도록 하여 에너지 손실여부를 판단하는 기능을 수행할 수 있다.The power distributing box 200 can receive data through the ICT network from the outlet, analyze the line-to-line voltage waveform, the current waveform, and the leakage current of the power-load side to determine the energy loss.
이러한 기능을 수행하기 위한 분전함(200)은 전원전압 검출부(210), 전류 측정부(220), 판단부(230), 통신부(240), 제어부(250)를 포함할 수 있다.The power distributing box 200 for performing such a function may include a power supply voltage detecting unit 210, a current measuring unit 220, a determining unit 230, a communication unit 240, and a control unit 250.
전원전압 검출부(210)는 전원측 선간전압을 측정하는 구성이다.The power supply voltage detection unit 210 measures the power supply-side line voltage.
전류 측정부(220)는 전원측 활선과 중성선의 전류파형을 측정하는 구성이다.The current measuring unit 220 measures the current waveform of the power source side live wire and the neutral wire.
판단부(230)는 측정된 전원-부하 전압파형과 전류파형을 분석하여 손실에너지의 크기, 지속성을 분석하여 고장여부를 판별하는 구성이다.The determination unit 230 analyzes the measured power-load voltage waveform and the current waveform to analyze the magnitude and duration of the loss energy to determine whether the failure has occurred.
통신부(240)는 고장여부를 관제센터로 송신하는 구성이다.The communication unit 240 is configured to transmit a failure to the control center.
제어부(250)는 전원측 전류파형과 전원-부하측의 선간 전압파형을 동시에 검출하도록 하고, 접촉불량이나 직렬아크 고장에 따른 전압강하나 절연불량에 따른 누설전류를 분석하도록 하여 손실된 유효전력을 산출하여 옥내외 배선의 고장유무를 판별하고 최종적으로 관제센터로 통신하도록 제어한다.The control unit 250 detects the current waveform on the power source side and the line-to-line voltage waveform on the power source-load side and analyzes the leakage current according to the voltage drop or insulation failure caused by the contact failure or the series arc failure, Determine whether internal or external wiring is faulty, and finally control to communicate with the control center.
관제센터(300)는 아크발생여부를 측정하기 위해서 부하측에서도 누설에너지를 감시할 수 있다. 이러한 관제센터는 ICT기술과 접목하여 직렬아크뿐만 아니라 지락, 단락, 접촉불량 또는 반단선으로 인해 부하측에서 발생되는 에너지 누설을 감시 모니터링할 수 있다.The control center 300 can monitor the leakage energy on the load side to measure whether or not an arc is generated. These control centers combine with ICT technology to monitor and monitor not only series arcs, but also energy leakage from the load due to ground, short, contact failure or semi-disconnection.
도 2는 본 발명의 일실시예에 따른 ICT 기반 원격 저압 옥내외 배선상태 점검시스템의 동작을 설명하기 위한 예시도이다.2 is a diagram illustrating an operation of an ICT-based remote low-voltage indoor / outdoor wiring condition check system according to an embodiment of the present invention.
도 2에 도시된 바와 같이, 부하측의 선간 전압파형을 검출하여 부하전압 검출부에서 전압 송수신부로 Data가 전달되면 전압송신부는 ICT Network를 통해 분전반이 위치한 판단부로 Data가 전달된다. 또한 전원전압 검출부와 전류측정부에서 전원측 전압, 전류를 측정하여 판단부에서 종합하여 에너지 손실여부를 판단한다. 그리고 판단부에서의 결과는 통신부에서 관제센터로 보낸다.As shown in FIG. 2, when the line voltage waveform on the load side is detected and Data is transmitted from the load voltage detector to the voltage transmitter / receiver, the voltage transmitter transmits data to the determiner where the distribution panel is located via the ICT network. In addition, the power supply voltage detector and the current detector measure the voltage and current on the power supply side, and the determination unit comprehensively determines whether or not energy is lost. The results from the judge are sent from the communication department to the control center.
본 발명의 일실시예에 따른 ICT 기반 원격 저압 옥내외 배선상태 점검시스템을 이동용 전자제품에 응용하였을 경우 제품에서 분전반까지의 전선손상과 반단선 및 트래킹에 따른 화재를 예방할 수 있다.When the ICT-based remote low-voltage indoor / outdoor wiring condition check system according to an embodiment of the present invention is applied to a portable electronic product, it is possible to prevent wire damage, half break, and fire due to product from the product to the distribution board.
또한 콘센트에 적용할 경우 콘센트에서 분전반까지에서 발생되는 화재사고를 예방할 수 있다. In addition, when applied to an outlet, it is possible to prevent a fire accident from the outlet to the distribution board.
또한 분전반, 옥내배선, 콘센트, 제품에 걸쳐 구역을 나눠 적용할 경우 고장위치를 정확히 구별할 수 있는 효과가 있다.In addition, when the division is applied to the distribution board, the indoor wiring, the outlet, and the product, the fault location can be accurately distinguished.
이상으로 본 발명의 기술적 사상을 예시하기 위한 바람직한 실시예와 관련하여 설명하고 도시하였지만, 본 발명은 이와 같이 도시되고 설명된 그대로의 구성 및 작용에만 국한되는 것이 아니며, 기술적 사상의 범주를 일탈함이 없이 본 발명에 대해 다수의 변경 및 수정이 가능함을 당업자들은 잘 이해할 수 있을 것이다. 따라서, 그러한 모든 적절한 변경 및 수정과 균등물들도 본 발명의 범위에 속하는 것으로 간주되어야 할 것이다.While the present invention has been particularly shown and described with reference to preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. It will be appreciated by those skilled in the art that numerous changes and modifications may be made without departing from the invention. Accordingly, all such appropriate modifications and changes, and equivalents thereof, should be regarded as within the scope of the present invention.
100 : 콘센트 110 : 부하전압 검출부
120 : 전압송신부 200 : 분전함
210 : 전원전압 검출부 220 : 전류측정부
230 : 판단부 240 : 통신부
250 : 제어부 300 : 관제센터100: Outlet 110: Load voltage detector
120: voltage transmitter 200:
210: Power supply voltage detection unit 220: Current measurement unit
230: determination unit 240: communication unit
250: controller 300: control center
Claims (4)
전원 측의 선간 전압파형을 측정하고, 전원측 활선과 중성선의 전류파형을 측정하며, 상기 부하전압 검출부로부터 검출데이터를 입력받아 전원-부하측의 전압파형, 전류파형 및 누설전류를 분석하도록 하여 에너지 손실여부를 판단하는 분전함;을 포함하며,
상기 분전함은 전원측 선간전압을 측정하는 전원전압 검출부;
상기 전원측 활선과 중성선의 전류파형을 측정하는 전류 측정부; 및
상기 ICT Network로부터 데이터를 전달받아 전원-부하의 전압파형과 전류파형을 분석하여 손실된 유효전력을 산출하여 고장여부를 판별하는 판단부; 를 포함하는 것을 특징으로 하는 ICT 기반 원격 저압 옥내외 배선상태 점검시스템.
A load voltage detecting unit for detecting a line-to-line voltage waveform on the load side by monitoring leakage energy on a load side to measure whether or not an arc is generated; and a voltage transmitting unit for transmitting detection data on the load side to an ICT network; And
The voltage waveform of the power source side is measured, the current waveform of the power source side live wire and the neutral wire is measured, the detection data is received from the load voltage detection unit, and the voltage waveform, current waveform and leakage current of the power source- And a power distributing unit
A power supply voltage detector for measuring a line-to-line voltage on a power supply side;
A current measuring unit for measuring a current waveform of the power supply side live wire and the neutral wire; And
A determiner for receiving the data from the ICT network and analyzing the voltage waveform and the current waveform of the power supply-load to calculate the lost active power to determine the failure; And an ICT-based remote low-voltage indoor / outdoor wiring status check system.
상기 분전함은,
전원측 선간전압을 측정하는 전원전압 검출부;
상기 전원측 활선과 중성선의 전류파형을 측정하는 전류 측정부;
상기 ICT Network로부터 데이터를 전달받아 전원-부하의 전압파형과 전류파형을 분석하여 손실된 유효전력을 산출하여 고장여부를 판별하는 판단부;
상기 판단부의 고장여부를 관제센터로 송신하는 통신부; 및
상기 통신부로부터 수신하여 직렬아크뿐만 아니라 지락, 단락, 접촉불량 또는 반단선으로 인해 부하측에서 발생되는 에너지 누설을 감시 모니터링하는 관제센터;를 포함하는 것을 특징으로 하는 ICT 기반 원격 저압 옥내외 배선상태 점검시스템.The method according to claim 1,
The distribution box includes:
A power supply voltage detector for measuring a power supply side line voltage;
A current measuring unit for measuring a current waveform of the power supply side live wire and the neutral wire;
A determiner for receiving the data from the ICT network and analyzing the voltage waveform and the current waveform of the power supply-load to calculate the lost active power to determine the failure;
A communication unit for transmitting the failure of the determination unit to the control center; And
And a control center for monitoring and monitoring an energy leakage generated from a load due to a ground fault, a short circuit, a contact failure, or a half-wire as well as a series arc received from the communication unit. .
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| KR102090586B1 (en) * | 2018-12-27 | 2020-03-18 | 한국전기안전공사 | Apparatus and method using the smart power panel based on the IoT for the fault condition estimation of the power line and load |
| KR102178685B1 (en) * | 2020-03-06 | 2020-11-13 | 이정임 | Underground communication line protection device |
| CN112162172A (en) * | 2020-08-18 | 2021-01-01 | 山东大学 | Series fault arc detection method and system based on limited sampling data |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR102090586B1 (en) * | 2018-12-27 | 2020-03-18 | 한국전기안전공사 | Apparatus and method using the smart power panel based on the IoT for the fault condition estimation of the power line and load |
| WO2020138573A1 (en) * | 2018-12-27 | 2020-07-02 | 한국 전기안전공사 | Method and device for estimating fault conditions of electric path and load by using iot-based load device and smart distribution panel |
| KR102178685B1 (en) * | 2020-03-06 | 2020-11-13 | 이정임 | Underground communication line protection device |
| CN112162172A (en) * | 2020-08-18 | 2021-01-01 | 山东大学 | Series fault arc detection method and system based on limited sampling data |
| CN112162172B (en) * | 2020-08-18 | 2021-07-06 | 山东大学 | Series fault arc detection method and system based on limited sampling data |
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