KR930009189A - Control Circuit for Automatic Opening of Fault Section - Google Patents

Control Circuit for Automatic Opening of Fault Section Download PDF

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Publication number
KR930009189A
KR930009189A KR1019910018630A KR910018630A KR930009189A KR 930009189 A KR930009189 A KR 930009189A KR 1019910018630 A KR1019910018630 A KR 1019910018630A KR 910018630 A KR910018630 A KR 910018630A KR 930009189 A KR930009189 A KR 930009189A
Authority
KR
South Korea
Prior art keywords
circuit
current
control circuit
signal
light emitting
Prior art date
Application number
KR1019910018630A
Other languages
Korean (ko)
Inventor
김태영
Original Assignee
김태영
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 김태영 filed Critical 김태영
Priority to KR1019910018630A priority Critical patent/KR930009189A/en
Publication of KR930009189A publication Critical patent/KR930009189A/en
Priority to KR2019940005209U priority patent/KR940003076Y1/en

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Abstract

다중접지 2.2.9Kv-Y 배전계통에서 수용가 구내설비 고장으로 인한 계통 파급사고를 미연 방지하며 감소시키는 고장구간 자동개폐기의 콘트롤 회로에 관한 것으로 이와 같은 목적을 달성하기 위하여 전류 변환기의 아나로그 신호를 디지털 부호화하여 중앙제어 회로에 입력시켜 출력된 신호를 증폭기를 통해 발광다이오드로 표시토록함과 동시에 릴레이를 동작시키며, 또한 중앙 제어회로에 기억시킨 프로그램에 의해 이상유무를 첵크하여 그 신호를 포토커플러에 의해서는 트랜지스터로 증폭시켜 트립코일을 여자함으로서 매인스위치를 제어하도록 되며 가변저항과 제너다이오드 및 포토커플러와 발광다이오드로는 별개의 회로를 구성하여 단락전류를 표시토록한 새로운 고장구간 자동개폐기를 위한 제어회로에 관한 것이다.Multi-ground 2.2.9Kv-Y distribution system to prevent and reduce the system accidents caused by customer equipment failure in the fault circuit automatic circuit control circuit to achieve this purpose, digital signal of the analog converter to achieve this purpose The signal is inputted to the central control circuit, and the output signal is displayed on the light emitting diode through the amplifier, and the relay is operated, and the signal stored in the central control circuit is checked for abnormality, and the signal is detected by the photocoupler. Is a transistor to amplify the trip coil to excite the trip coil to control the main switch, and a variable circuit, a zener diode, a photocoupler, and a light emitting diode constitute a separate circuit to display a short circuit current. It is about.

Description

고장구간 자동개폐기를 위한 제어회로Fault control circuit for automatic switchgear

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명을 설명키 위한 블록 다이어 그램이며,1 is a block diagram for explaining the present invention,

제2도는 본 발명 실시예의 회로도이다.2 is a circuit diagram of an embodiment of the present invention.

Claims (3)

전류 변환기에 감지된 지락 동작 전류와 상 동작 전류에 의해 제어 하도록 하는 고정구간 자동개폐기에 있어서, 배전선호에 흐르는전류를 상, 지락전류 검출부(1, 1′)로 검출토록되고, A/D변환기(2, 2′)에서 아나로그 전압차가 디지털 부호로 변환시켜 중앙처리 장치(CPU : 6)에 인가하도록 되며, 상기 중앙처리장치(6)에 미리 입력 기억된 프로그램에 의해 정상 여부를 판단하여 이에 상응하는 출력을 차단기 구동부(5)에 송출토록되고, 상기한 중앙처리장치(6)는 상, 지락 전류검출부(1, 1′)의 신호이외의 단락전류검출부(3)의 출력신호와 돌입억제 기억부(4)의 신호를 항시 받아 함께 처리하도록 되는 것을 특징으로 하는 고정구간 자동개폐기를 위한 제어회로.In a fixed section automatic switchgear which is controlled by the ground operating current and the phase operating current sensed by the current converter, the current flowing through the distribution line is detected by the phase and ground current detection units (1, 1 '), and the A / D converter. At (2, 2 '), the analog voltage difference is converted into a digital code and applied to the CPU 6, and it is determined whether or not it is normal by a program pre-stored in the CPU 6 The corresponding output is sent to the circuit breaker driver 5, and the central processing unit 6 suppresses the output signal of the short-circuit current detector 3 other than the signals of the phase and ground current detectors 1 and 1 'and the inrush. A control circuit for a fixed section automatic switchgear, characterized in that to receive the signal from the storage unit (4) at all times to process together. A/D변환회로(IC1)의 입력측에는상전류변화치가 입력되며 A/D변환회로(IC2)의 입력측에는 지락전류 변화치가 입력되어 각기 변화되는 디지털 부호화된 출력을 중앙제어회로(IC3) 입력측에 인가되며, 상기한 중앙제어회로(IC3)에는 출력측에 증폭회로(IC4)를 통해 릴레이(RY1)를 구동시키면서 발광다이오드(C)로 돌입억제 동작을 표시토록되고, 증폭회로(IC5)로 고장감시 신호를 발광다이오드(P)로 표시토록함과 동시에 트리거 신호를 포토커플러(PC2)를 통해 메인 스위치 차단 구동기(TRIP)를 여자하며, 가변저항(VR3)을 통해 단락전류를 판단하여 포토커플러(PC1)를 통해 단락전류에서만 낮은 레벨이 되도록 하여 발광다이오드(L)로 단락전류 동작을 표시하도록 하여서 되는 것을 특징으로 하는 고장구간 자동개폐기를 위한 제어회로.A / D conversion circuit (IC 1) and a phase current change value is input to the input side of the A / D converter circuit (IC 2) is input ground current change value of the input side to a digital coded output that each change the central control circuit (IC 3) of Applied to the input side, the central control circuit IC 3 is configured to display the inrush suppression operation to the light emitting diode C while driving the relay RY 1 through the amplification circuit IC 4 on the output side. IC 5 ) displays the fault monitoring signal as the light emitting diode (P) and simultaneously triggers the main switch disconnect driver (TRIP) through the photocoupler (PC 2 ) and short-circuits through the variable resistor (VR 3 ). A control circuit for a fault section automatic switchgear, characterized in that the current is judged to be a low level only in the short circuit current through the photocoupler (PC 1 ) to indicate the short-circuit current operation to the light emitting diode (L). 청구의 범위 제2항에 있어서, A/D변환로(IC1, IC2)의 입력측에는 저항(R1)과 제너 다이오드(ZD1) 및 가변저항(RV1)과 저항(R2)과 제너다이오드(ZD2) 및 가변저항(VR2)으로 A/D변환기의 동작에 필요한 부(負) 정전압 공급용 회로가 설치되는 고장구간 자동개폐기를 위한 제어회로.According to claim 2, A / D conversion path (IC 1 , IC 2 ) on the input side of the resistor (R 1 ) and Zener diode (ZD 1 ), variable resistor (RV 1 ) and resistor (R 2 ) and A control circuit for a fault section automatic switchgear in which a negative voltage supply circuit necessary for the operation of an A / D converter is provided by a zener diode (ZD 2 ) and a variable resistor (VR 2 ). ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019910018630A 1991-10-22 1991-10-22 Control Circuit for Automatic Opening of Fault Section KR930009189A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1019910018630A KR930009189A (en) 1991-10-22 1991-10-22 Control Circuit for Automatic Opening of Fault Section
KR2019940005209U KR940003076Y1 (en) 1991-10-22 1994-03-15 Emergency relay

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019910018630A KR930009189A (en) 1991-10-22 1991-10-22 Control Circuit for Automatic Opening of Fault Section

Related Child Applications (1)

Application Number Title Priority Date Filing Date
KR2019940005209U Division KR940003076Y1 (en) 1991-10-22 1994-03-15 Emergency relay

Publications (1)

Publication Number Publication Date
KR930009189A true KR930009189A (en) 1993-05-22

Family

ID=67348494

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019910018630A KR930009189A (en) 1991-10-22 1991-10-22 Control Circuit for Automatic Opening of Fault Section

Country Status (1)

Country Link
KR (1) KR930009189A (en)

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