KR980006695A - Complex relay device and control method - Google Patents

Complex relay device and control method Download PDF

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Publication number
KR980006695A
KR980006695A KR1019960020805A KR19960020805A KR980006695A KR 980006695 A KR980006695 A KR 980006695A KR 1019960020805 A KR1019960020805 A KR 1019960020805A KR 19960020805 A KR19960020805 A KR 19960020805A KR 980006695 A KR980006695 A KR 980006695A
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South Korea
Prior art keywords
output
relay
secondary side
relay device
central processing
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KR1019960020805A
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Korean (ko)
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KR100218381B1 (en
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김영돈
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이종수
엘지산전 주식회사
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Priority to KR1019960020805A priority Critical patent/KR100218381B1/en
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H1/00Details of emergency protective circuit arrangements
    • H02H1/0038Details of emergency protective circuit arrangements concerning the connection of the detecting means, e.g. for reducing their number
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H1/00Details of emergency protective circuit arrangements
    • H02H1/0007Details of emergency protective circuit arrangements concerning the detecting means
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H1/00Details of emergency protective circuit arrangements
    • H02H1/0092Details of emergency protective circuit arrangements concerning the data processing means, e.g. expert systems, neural networks
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03MCODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12Analogue/digital converters

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Artificial Intelligence (AREA)
  • Evolutionary Computation (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

본 발명의 복합계전장치는, 입력측에는 전류변화기(CT-R, CT-S, CT-T)의 2차측과, 전압변환기(PT-RS, PT-ST)의 2차측과 개방삼각 전압변압기(PT1, PT2, PT3)의 2차측 및 영상변류기(ZCT)의 2차측과 연결되며, 출력측에는 트립\알람 접점이 접점출력을 출력하기 위해 교류 차단\접촉기의 여자코일과 연결되어 구성되며, 기존 배선반이 적용되는 주요 보호계 전기의 보호기능을 디지탈 방식으로 구현함과 동시에 일체화하여 하나의 장치 내제 탑재함으로써 상호독립적으로 신호를 센싱하여 교류를 차단 및 접촉제어하는데 사용되었던 배선들과 변성기 회로를 크게 감소시켜 배산반의 설비를 간략화하고 이에 따라 제작비용을 절감할 수 있으며, 복합계전기능이 한 장치내에서 동일한 전기량 연산 알고림즘과 정정방식으로 수행되므로 각 계진요소에 대해 해당 보호점별로 최적이 보호협조가 가능하며, 각 계전기들을 하나의 장치내에 구축하고 통신모듈을 탑재함으로써 복합계전기능을 수행하다가 어느 한 계전요소라도, 고장이 검출되면 고장발생 순으로 고장종류 및 고장데이타를 저장하였다가 중앙감시반에 전송함으로써 별도의 부가장치 없이 종합적인 감시반을 구성할 수 있는 효과가 있다.In the composite relay device of the present invention, on the input side, the secondary side of the current transformers CT-R, CT-S, CT-T, the secondary side of the voltage converters PT-RS, PT-ST, and the open triangle voltage transformer ( It is connected to the secondary side of PT1, PT2, PT3) and the secondary side of the image transformer (ZCT), and on the output side, the trip alarm contact is configured to be connected to the excitation coil of the AC disconnection contactor to output the contact output. By implementing the protection function of the main protection system applied in a digital way and integrating and mounting in one device, the wirings and transformer circuits that were used to cut off the AC and control the contact by mutually independent signal are greatly reduced. Simplify the equipment of the distribution panel and reduce the manufacturing cost accordingly.The complex relay function is performed by the same electric calculation algorithm and correction method in one device so that the protection point for each factor Optimum protection and cooperation are possible, and each relay is installed in one device and the communication module is installed to perform the complex relay function.If any relay element is detected, the fault type and fault data are stored in the order of failure. By transmitting it to the central monitoring panel, it is possible to construct a comprehensive monitoring panel without any additional equipment.

Description

복합계전장치 및 그의 제어방법Complex relay device and control method

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

Claims (8)

입력측에는 전류변환기(CT-R, CT-S, CT-T)의 2차측과, 전압변화기(CT-RT, PT-ST)의 2차측과 개방삼각 결선된 전압변환기(PT1, PT2, PT3)의 2차측 및 영상변류기(ZCT)의 2차측과 연결되며, 출력측에는 트립\알람 접점이 접점출력을 출력하기 위해 교류 차단\접촉기의 여자코일과 연결되어 구성된 것을 특징으로 하는 보합계전장치On the input side, the secondary side of the current converters (CT-R, CT-S, CT-T), and the secondary side of the voltage converters (CT-RT, PT-ST) and the open triangle connected voltage converter (PT1, PT2, PT3) Is connected to the secondary side and the secondary side of the image current transformer (ZCT), and on the output side, the tripping alarm contact is configured to be connected to the excitation coil of the AC disconnection contactor to output the contact output. 제1항에 있어서, 상기 복합계전장치는 상기 전류변환기와 전압변환기 및 영상변류기의 출력을 입력으로 하는 계기용 변성기부와, 상기 계기용 변성기부와 함께 상기 전류변환기와 전압변환기 및 영상 변류기 의 출력을 내부 처리가능한 범위로 변환시키기 위한 입력변환부와, 상기 입력변환부의 출력으로부터 고주파 영역의 신호를 제거하기 위한 저역통과필터와, 상기 저역 통과필터의 출력을 중앙처리장치에 한 채널씩 공급하기 위한 멀티플렉서와, 상기 멀티플렉서의 출력 중 소신호영역을 증폭하기 위한 이득증폭부와, 상기 이득증폭부의 출력을 역가산하기 위한 역가산부와, 상기 역가산부의 출력으로부터 고장을 검출하여 보호알고리즘을 수행하기 위한 중앙처리장치와, 사용자가 계전요소별 각종 정정치를 정정할 수 있도록 하기 위한 버튼스위치 입력부와, 상기 각종 정정치 및 현 배전반에 입력되는 각종 전기랴을 표시하기 위한 표시부와, 상기 중앙처리장치와 연결되어 고장판별시 고장정보를 중앙감시반에 전송하기 위한 통신모듈과, 상기 중앙처리장치의 고장판별결과에 따라 상기 트립\알람 접점을 스위칭하기 위한 데이터 출력부르 포함하여 구성된 것을 특징으로 하는 복합계전장치.[Claim 2] The output of the current transformer, the voltage transformer and the image current transformer together with the instrument transformer part for inputting the outputs of the current converter, the voltage converter and the image current transformer. An input converter for converting the signal into an internal processable range, a low pass filter for removing a high frequency signal from the output of the input converter, and a channel for supplying the output of the low pass filter to the central processing unit one channel. A multiplexer, a gain amplifier for amplifying a small signal region of the output of the multiplexer, an inverse adder for inversely adding the output of the gain amplifier, and a fault detection from the output of the inverse adder to perform a protection algorithm Central processing unit and buttons for allowing the user to correct various correction values for each relay element A value input unit, a display unit for displaying the various correction values and various electric fields inputted to the current switchboard, a communication module connected to the central processing unit to transmit the failure information to the central monitoring unit when the failure is determined, and the central processing unit And a data output unit for switching the trip alarm contact point according to a fault determination result of the multi relay device. 제2항에 있어서, 상기 복합계전장치는 보호대상에 따라 일부 계전요소기능만을 수행하도록 선택하기 위한 딥 스위치 설정부르 더 포함하여 구성된 것을 특징으로 하는 복합계전장치.The composite relay device according to claim 2, wherein the composite relay device further comprises a dip switch setting unit for selecting to perform only some relay element functions according to a protection target. 제2항에 있어서, 상기 중앙처리장치는 내부에 상기 역가산부의 출력을 디지탈화하기 위한 아날로그\디지탈 변환기를 포함하여 구성된 것을 특징으로 하는 복합계전장치.The complex relay device according to claim 2, wherein the central processing unit includes an analog to digital converter for digitizing the output of the inverse adding unit therein. 제2항에 있어서, 상기 중앙처리장치는 각 계전요소의 정정치를 백업하기 위한 제1메모리와 연결되어 구성된 것을 특징으로 하는 복합계전장치.The composite relay device according to claim 2, wherein the central processing unit is connected to a first memory for backing up the correction values of the relay elements. 제2항에 있어서, 상기 통신모듈은 고장발생기 고장정보를 저장하기 위한 제2메모리를 포함하여 구성된 것을 특징으로 하는 복합계전장치.The complex relay device of claim 2, wherein the communication module comprises a second memory for storing fault generator fault information. 각 계전요소로부터 입력되는 신호를 채널별로 디지탈 값으로 변환시키고 차단지령의 출력 유,무를 판단하는 제1과정과, 상기 제1과정에서 이미 차단지령이 출력되어 있다면 채널별 디지탈값을 데이터 블럭과 고장 데이터블럭에 이동저장시키고 중앙감시반에 전송할 고장정보를 구성하는 제2과정과, 상기 제1과정에서 아직차단지령이 출력되어 있지 않다면 순차적으로 각 계전요소별 고장검출루턴을 수행하고 고장시 해당 고장정보를 샛팅하는 제3과정과, 상기 해당고장정보에 따라 고장발생시 교류를 차단 또는 고장 해제시 교류를 차단해제는 제4과정으로 이루어진 것을 특징으로 하는 복합계전장치의 제어방법.A first process of converting a signal input from each relay element into a digital value for each channel and determining whether or not a block command is output; and if a block command is already output in the first process, the digital value for each channel is broken with a data block. The second step of configuring the fault information to be stored in the data block and to be transmitted to the central monitoring board, and if the blocking command is not yet output in the first step, the fault detection luton for each relay element is sequentially performed, and the corresponding fault information in case of failure And a fourth process of setting a third process, and a fourth process of disconnecting AC when a failure occurs or disconnecting the AC when a failure occurs according to the corresponding failure information. 제7항에 있어서, 상기 제3과정은 각 계전요소별로 하나씩 순차적으로 수행되는 것을 특징으로 하는 복합 계전장치의 제어방법.The control method according to claim 7, wherein the third process is performed one by one for each relay element. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019960020805A 1996-06-11 1996-06-11 Compound relay device and control method KR100218381B1 (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100320444B1 (en) * 1998-12-07 2002-02-19 이종수 Apparatus for controlling input level overcurrent of the protective relay
KR100727360B1 (en) * 2007-04-17 2007-06-13 한선화 A watt hour meter alarming fault of section of electric leackage detection
KR100912771B1 (en) * 2007-09-03 2009-08-18 주식회사 효성 Digital protection apparatus for electric power system and controlling method thereof
KR101125239B1 (en) * 2011-07-19 2012-03-21 (주)가온테크 System for controlling digital protection relay unit

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030031591A (en) * 2001-10-15 2003-04-23 주식회사 케이디파워 A distribution board system for electric power monitoring and control
KR100430409B1 (en) * 2001-12-04 2004-05-03 주식회사 일렉슨 Method of setting Parameters in Relay and Apparatus therefor
KR100664897B1 (en) * 2005-03-11 2007-01-04 주식회사 효성 Digital protection relay and control method thereof
KR101005089B1 (en) * 2008-02-11 2010-12-30 주식회사 효성 A digital protection relay for distributingboard
KR20150141053A (en) * 2014-06-09 2015-12-17 엘에스산전 주식회사 Protective relaying system and method for gathering data using thereof
KR102304748B1 (en) * 2020-01-23 2021-09-24 엘에스일렉트릭 (주) A method for sending Trip Information Packet at the Protective Relay Test

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100320444B1 (en) * 1998-12-07 2002-02-19 이종수 Apparatus for controlling input level overcurrent of the protective relay
KR100727360B1 (en) * 2007-04-17 2007-06-13 한선화 A watt hour meter alarming fault of section of electric leackage detection
KR100912771B1 (en) * 2007-09-03 2009-08-18 주식회사 효성 Digital protection apparatus for electric power system and controlling method thereof
KR101125239B1 (en) * 2011-07-19 2012-03-21 (주)가온테크 System for controlling digital protection relay unit

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