KR101013458B1 - Terminal Box - Google Patents

Terminal Box Download PDF

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KR101013458B1
KR101013458B1 KR1020070097841A KR20070097841A KR101013458B1 KR 101013458 B1 KR101013458 B1 KR 101013458B1 KR 1020070097841 A KR1020070097841 A KR 1020070097841A KR 20070097841 A KR20070097841 A KR 20070097841A KR 101013458 B1 KR101013458 B1 KR 101013458B1
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South Korea
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current
voltage
phase
unit
display unit
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KR1020070097841A
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Korean (ko)
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KR20090032522A (en
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신동휘
김형민
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한국전력공사
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
    • G01R11/02—Constructional details
    • G01R11/04—Housings; Supporting racks; Arrangements of terminals
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
    • G01R11/02—Constructional details
    • G01R11/25—Arrangements for indicating or signalling faults
    • 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
    • G01R19/145—Indicating the presence of current or voltage
    • G01R19/15—Indicating the presence of current
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/01—Arrangements for reducing harmonics or ripples

Abstract

본 발명은 고압계기용 단자대에 관한 것으로서, 보다 상세하게는 고압용 전자식 전력량계를 취부상태에서 계기 오차 측정시, 봉인된 상태와 단자 커버를 해체하지 않고, 전압과 전류를 검출하여 계기 오차를 측정하고, 전압 전류 오 결선으로부터 MOF 절연 사고를 사전에 예방하고, 고압계기를 고조파로부터 고장을 방지하고 보호할 수 있는 고압계기용 단자대에 관한 것이다. The present invention relates to a terminal block for a high-voltage meter, and more particularly, when measuring the instrument error in the high-voltage electronic wattmeter mounting state, the instrument error is measured by detecting voltage and current without removing the sealed state and the terminal cover, The present invention relates to a terminal block for a high voltage meter which can prevent MOF insulation accidents from voltage and current miswiring and prevent and protect the high voltage meter from harmonics.

본 발명에 의한 고압계기용 단자대는 선로에 설치된 CT(current transformer)를 통하여 각 상의 전류를 검출하는 전류 검출부; 선로에 설치된 R(저항)을 통하여 각 상의 전압를 검출하는 전압 검출부; MOF 출력 전압 및 전류를 검출하여 오결선을 판단하고 보호하는 MOF 보호부; 각 부에 상용전원을 입력하여 각 부에 동작전원을 공급하는 전원장치(SMPS); 각 부의 전반적인 제어를 수행하는 제어부; 상기 MOF 보호부에서 판단된 오결선 상태를 표시하는 오결선 표시부; 역상을 표시하는 역상 표시부; 상별 전압 및 전류를 표시하는 상별 전압전류 표시기; 상기 전압 검출부에서 검출된 상전압을 표시하는 상전압 표시부; 및 상기 전류 검출부에서 검출된 상전류를 표시하는 상전류 표시부;를 포함한다. The terminal block for the high voltage meter according to the present invention includes a current detector for detecting the current of each phase through a CT (current transformer) installed in the line; A voltage detector for detecting a voltage of each phase through R (resistance) provided in the line; A MOF protection unit which detects and protects an incorrect wiring by detecting the MOF output voltage and current; A power supply (SMPS) for supplying operating power to each unit by inputting commercial power to each unit; A control unit which performs overall control of each unit; A miswiring display unit displaying a miswiring state determined by the MOF protection unit; A reverse phase display unit for displaying a reverse phase; A phase voltage current indicator for displaying phase voltage and current; A phase voltage display unit displaying the phase voltage detected by the voltage detector; And a phase current display unit displaying the phase current detected by the current detector.

전압. 전류. 오차. MOF. 변압변류기. 고조파. Voltage. electric current. error. MOF. Transformer current transformer. Harmonics.

Description

단자대{Terminal Box}Terminal block {Terminal Box}

본 발명은 고압계기용 단자대에 관한 것으로서, 보다 상세하게는 고압용 전자식 전력량계를 취부상태에서 계기 오차 측정시, 봉인된 상태와 단자 커버를 해체하지 않고, 전압과 전류를 검출하여 계기 오차를 측정하고, 전압 전류 오 결선으로부터 MOF 절연 사고를 사전에 예방하고, 고압계기를 고조파로부터 고장을 방지하고 보호할 수 있는 고압계기용 단자대에 관한 것이다. The present invention relates to a terminal block for a high-voltage meter, and more particularly, when measuring the instrument error in the high-voltage electronic wattmeter mounting state, the instrument error is measured by detecting voltage and current without removing the sealed state and the terminal cover, The present invention relates to a terminal block for a high voltage meter which can prevent MOF insulation accidents from voltage and current miswiring and prevent and protect the high voltage meter from harmonics.

종래에는 고압계기(예로서, 변압기 등)와 단자대를 조합하여 사용하고 있다. 이 단자대는 상별 표시 전압 전류 고장 진단 역할만 수행할 수가 있으며, 계기 오차 측정에 필요한 전압을 검출하기 위해서는 봉인장치와 단자 커버를 해체해야 전압을 공급받을 수가 있어 불편함이 있었다. Conventionally, a high pressure meter (for example, a transformer) and a terminal block are used in combination. This terminal block can only perform the role of diagnosing the display voltage and current fault of each phase. In order to detect the voltage necessary for measuring instrument error, the terminal block has to be dismantled to be supplied with voltage.

또한, 전압, 전류이상 유무가 표시되지 않아 전력관리에 어려움이 많았다. 또한, 정격 전류 이상 과전류가 흐를 때 경고음이 없어, MOF를 오결선과 과부하로부터 효과적으로 보호하기가 어려웠다. In addition, there was a difficulty in power management because no abnormality of voltage and current was displayed. In addition, there was no beep when over current flowed above the rated current, making it difficult to effectively protect the MOF from incorrect wiring and overload.

또한, 전기공사시 오 결선으로 인한 전압 전류 쇼트시 MOF가 절연파괴로 주전원 정전 및 재 전기공사에 따른 수용가 손실이 크게 발생되는 문제점이 있었다.In addition, there was a problem that the loss of the customer due to the main power outage and re-electric work due to the insulation breakdown when the voltage and current short-circuit due to incorrect wiring during electrical work.

또한, 고압계기가 변압기에서 발생되는 고조파(harmonics, 高調波)로 인한 고장이 다발하는 문제점도 있었다.In addition, there was a problem that the high-pressure meter is a frequent failure due to harmonics (harmonics, high frequency waves) generated in the transformer.

본 발명은 상술한 문제점을 해결하기 위하여 안출된 것으로서, 본 발명은 고압용 전자식 전력량계를 취부상태에서 계기 오차 측정시, 봉인된 상태와 단자 커버를 해체하지 않고, 전압과 전류를 검출하여 계기 오차를 측정하고, 전압 전류 오 결선으로부터 MOF 절연 사고를 사전에 예방하고, 고압계기를 고조파로부터 고장을 방지하고 보호하는데 그 목적이 있다. The present invention has been made to solve the above-described problems, the present invention is to measure the instrument error in the high-voltage electronic wattmeter mounting state, without detecting the sealed state and the terminal cover, the voltage and current to detect the instrument error Its purpose is to measure and prevent MOF insulation accidents from voltage and current miswiring, and to prevent and protect the high voltage meter from harmonics.

위와 같은 기술적 과제를 해결하기 위하여 본 발명에 의한 고압계기용 단자대는 선로에 설치된 CT(current transformer)를 통하여 각 상의 전류를 검출하는 전류 검출부; 선로에 설치된 R(저항)을 통하여 각 상의 전압를 검출하는 전압 검출부; MOF 출력 전압 및 전류를 검출하여 오결선을 판단하고 보호하는 MOF 보호부; 각 부에 상용전원을 입력하여 각 부에 동작전원을 공급하는 전원장치(SMPS); 각 부의 전반적인 제어를 수행하는 제어부; 상기 MOF 보호부에서 판단된 오결선 상태를 표시하는 오결선 표시부; 역상을 표시하는 역상 표시부; 상별 전압 및 전류를 표시하는 상별 전압전류 표시기; 상기 전압 검출부에서 검출된 상전압을 표시하는 상전압 표시부; 및 상기 전류 검출부에서 검출된 상전류를 표시하는 상전류 표시부;를 포함한다. In order to solve the above technical problem, the terminal block for the high voltage meter according to the present invention includes a current detector for detecting the current of each phase through a CT (current transformer) installed in the line; A voltage detector for detecting a voltage of each phase through R (resistance) provided in the line; A MOF protection unit which detects and protects an incorrect wiring by detecting the MOF output voltage and current; A power supply (SMPS) for supplying operating power to each unit by inputting commercial power to each unit; A control unit which performs overall control of each unit; A miswiring display unit displaying a miswiring state determined by the MOF protection unit; A reverse phase display unit for displaying a reverse phase; A phase voltage current indicator for displaying phase voltage and current; A phase voltage display unit displaying the phase voltage detected by the voltage detector; And a phase current display unit displaying the phase current detected by the current detector.

또한 상기 제어부의 제어에 따라 각부의 고장여부를 표시하는 고장 표시부를 더 구비하는데, 상기 고장 표시부는 공급 전류가 정격전류 이상일 때 경보 표시를 수행하는 것이 더욱 바람직하다. The apparatus may further include a failure display unit displaying whether a failure occurs in each unit under the control of the controller, and the failure display unit may further perform an alarm display when the supply current is equal to or greater than the rated current.

또한 선로의 출력측에서 발생하는 고조파 성분을 제거하는 고조파 필터부가 더 구비되는 것이 바람직하다. In addition, it is preferable to further include a harmonic filter unit for removing harmonic components generated on the output side of the line.

본 발명에 따르면, 단자대 카버의 봉인구조를 제거하지 않고도, 상전압 표시부 단자에 오차측정기의 전압선을 연결하여 계기오차를 측정할 수 있으며, 전압, 전류 및 전력을 디지털로 표시할 수가 있어 에너지의 육안 관리가 가능하여 에너지 절감 효과를 가져 올 수 있다.According to the present invention, the instrument error can be measured by connecting the voltage line of the error measuring instrument to the phase voltage display terminal without removing the sealing structure of the terminal block cover, and the voltage, current and power can be digitally displayed to visualize energy. It can be managed, resulting in energy savings.

또한, 공급 전류가 정격 전류이상일 때 경보 표시를 수행할 수가 있어 안전사고를 사전에 예방할 수 있으며, 공사시 오결선을 사전에 방지하는 회로를 추가함으로서 MOF를 절연 파괴로부터 보호하고 손실을 최소화함으로써 전력관리 업무 능률을 최대화할 수 있으며, 고압계기를 고조파로 부터 보호할 수있는 고조파 필터를 내장함으로서 사전에 고장방지를 할 수 있는 효과가 있다. In addition, the alarm display can be performed when the supply current is higher than the rated current to prevent safety accidents in advance, and by adding a circuit that prevents incorrect wiring during construction, the MOF is protected from insulation breakdown and power is minimized by minimizing losses. The efficiency of management can be maximized, and the harmonic filter that protects the high pressure gauge from harmonics can be prevented in advance.

이하, 첨부된 도면을 참조하여 본 발명에 의한 고압계기용 단자대의 구성 및 작용을 구체적으로 설명한다. Hereinafter, with reference to the accompanying drawings will be described in detail the configuration and operation of the terminal block for a high-pressure meter according to the present invention.

도 1을 참조하면, 단자대의 현장 취부 상태에서 봉인을 제거하지 않고, 전압과 전류를 검출하여 계기 오차 측정이 가능하고, MOF 출력 전압 및 전류를 검출하 여 오결선을 판단하고 방지함으로서 MOF를 보호하기 위하여 본 발명은 전류 검출부(110), 전압 검출부(120), MOF 보호부(130), 전원장치(SMPS)(140), 제어부(CPU)(150), 오결선 표시부(160), 역상 표시부(170), 상별 전압전류 표시기(180), 상전압 표시부(190), 상전류 표시부(200) , 고장 표시부(210) 및 고조파 필터부(220)로 구성된다.Referring to FIG. 1, the measurement of instrument error is possible by detecting voltage and current without removing the seal in the field mounting state of the terminal block, and the MOF is protected by detecting and preventing incorrect wiring by detecting the MOF output voltage and current. To the present invention, the current detector 110, the voltage detector 120, the MOF protection unit 130, the power supply unit (SMPS) 140, the control unit (CPU) 150, the incorrect wiring display unit 160, the reverse phase display unit And a phase voltage display unit 180, a phase voltage display unit 190, a phase current display unit 200, a fault display unit 210, and a harmonic filter unit 220.

상기 전류 검출부(110)는 선로에 설치된 CT(current transformer)를 통하여 각상(1S,2S,3S)의 전류를 검출한다.The current detection unit 110 detects the current of each phase (1S, 2S, 3S) through a CT (current transformer) installed in the line.

상기 전압 검출부(120)는 선로에 설치된 R(저항)을 통하여 각상의 전압을 검출한다.The voltage detector 120 detects the voltage of each phase through R (resistance) installed in the line.

상기 MOF 보호부(130)는 MOF 출력 전압 및 전류를 검출하여 오결선을 판단하고 보호한다.The MOF protection unit 130 detects and protects incorrect wiring by detecting the MOF output voltage and current.

상기 전원장치(SMPS)(140)는 각부에 상용전원을 입력하여 각부에 동작전원을 공급한다.The power supply device (SMPS) 140 supplies commercial power to each part to supply operating power to each part.

상기 제어부(CPU)(150)는 전반적인 제어를 수행한다.The controller 150 performs overall control.

상기 오결선 표시부(160)는 상기 MOF 보호부(130)에서 판단된 오결선 상태를 표시한다.The incorrect wiring display unit 160 displays the incorrect wiring status determined by the MOF protection unit 130.

상기 역상 표시부(170)는 역상을 표시하고, 상별 전압전류 표시기(180)는 상별 전압 및 전류를 표시한다.The reverse phase display unit 170 displays the reverse phase, and the phase voltage current indicator 180 displays the phase voltage and current.

상기 상전압 표시부(190)는 전압 검출부(120)에서 검출된 상전압을 표시하고, 상전류 표시부(200)는 상기 전류 검출부(110)에서 검출된 상전류를 표시한다.The phase voltage display unit 190 displays the phase voltage detected by the voltage detector 120, and the phase current display unit 200 displays the phase current detected by the current detector 110.

상기 고장 표시부(210)는 상기 마이컴의 제어에 따라 각부의 고장여부를 표시하되, 특히 공급 전류가 정격 전류이상일 때 경보 표시를 수행한다.The failure display unit 210 displays whether or not a failure of each unit under the control of the microcomputer, and in particular, displays an alarm when the supply current is higher than the rated current.

본 발명은 단자대 봉인을 제거하지 않고도 상전압 표시부에 오차측정기의 전압선을 연결하여 오차를 측정할 수 있으며, 전압, 전류 및 전력을 디지털로 표시할 수가 있어 에너지의 육안 관리가 가능하다.The present invention can measure the error by connecting the voltage line of the error meter to the phase voltage display unit without removing the terminal block seal, it is possible to digitally display the voltage, current and power, it is possible to visually manage the energy.

단자대 내에 고조파 필터부(220)를 내장하여 변압기 선로 출력측에서 발생하는 각종 고조파 성분을 사전에 제거하여 고압용 전자식 전력량계가 고조파로 인한 고장이 발생되지 않도록 하였다.The harmonic filter unit 220 is built in the terminal block to remove various harmonic components generated at the output side of the transformer in advance so that the high-voltage electronic electricity meter does not cause a malfunction due to harmonics.

또한, 공급 전류가 정격 전류이상일 때 경보 표시를 수행할 수가 있어 안전사고를 사전에 예방할 수 있으며, 공사시 오결선을 사전에 방지하는 회로를 추가함으로서 MOF를 절연 파괴로부터 보호하고 손실을 최소화함으로써 전력관리 업무 능률을 최대화 할 수 있다.In addition, the alarm display can be performed when the supply current is higher than the rated current to prevent safety accidents in advance, and by adding a circuit that prevents incorrect wiring during construction, the MOF is protected from breakdown and power is minimized by minimizing losses. Maximize management efficiency.

도 1은 본 발명에 따른 고압계기용 단자대의 블록 구성도.1 is a block diagram of a terminal block for a high pressure meter according to the present invention.

**도면의 주요부분에 대한 부호의 설명**DESCRIPTION OF REFERENCE NUMERALS

110 : 전류 검출부 120 : 전압 검출부110: current detector 120: voltage detector

130 : MOF 보호부 140 : 전원장치(SMPS)130: MOF protection unit 140: power supply (SMPS)

150 : 제어부(CPU) 160 : 오결선 표시부150: control unit (CPU) 160: incorrect wiring display unit

170 : 역상 표시부 180 : 상별 전압전류 표시기170: reverse phase display unit 180: phase current indicator

190 : 상전압 표시부 200 : 상전류 표시부190: phase voltage display unit 200: phase current display unit

210 : 고장 표시부 220 : 고조파 필터 210: fault display unit 220: harmonic filter

Claims (4)

선로에 설치된 CT(current transformer)를 통하여 각 상의 전류를 검출하는 전류 검출부;A current detector for detecting current of each phase through a CT (current transformer) installed in a line; 선로에 설치된 R(저항)을 통하여 각 상의 전압를 검출하는 전압 검출부;A voltage detector for detecting a voltage of each phase through R (resistance) provided in the line; MOF 출력 전압 및 전류를 검출하여 오결선을 판단하고 보호하는 MOF 보호부;A MOF protection unit which detects and protects an incorrect wiring by detecting the MOF output voltage and current; 각 부에 상용전원을 입력하여 각 부에 동작전원을 공급하는 전원장치(SMPS);A power supply (SMPS) for supplying operating power to each unit by inputting commercial power to each unit; 각 부의 전반적인 제어를 수행하는 제어부;A control unit which performs overall control of each unit; 상기 MOF 보호부에서 판단된 오결선 상태를 표시하는 오결선 표시부;A miswiring display unit displaying a miswiring state determined by the MOF protection unit; 역상을 표시하는 역상 표시부;A reverse phase display unit for displaying a reverse phase; 상별 전압 및 전류를 표시하는 상별 전압전류 표시기;A phase voltage current indicator for displaying phase voltage and current; 상기 전압 검출부에서 검출된 상전압을 표시하는 상전압 표시부;및 A phase voltage display unit displaying the phase voltage detected by the voltage detector; and 상기 전류 검출부에서 검출된 상전류를 표시하는 상전류 표시부;를 포함하는 것을 특징으로 하는 고압계기용 단자대.And a phase current display unit displaying the phase current detected by the current detection unit. 제 1 항에 있어서,The method of claim 1, 상기 제어부의 제어에 따라 각부의 고장여부를 표시하는 고장 표시부를 더 구비하는 것을 특징으로 하는 고압계기용 단자대.High voltage meter terminal block characterized in that it further comprises a failure display unit for displaying whether or not the failure of each part under the control of the controller. 제 2 항에 있어서,The method of claim 2, 상기 고장 표시부는 공급 전류가 정격전류 이상일 때 경보 표시를 수행하는 것을 특징으로 하는 고압계기용 단자대. The fault display unit is a high voltage meter terminal block, characterized in that for performing an alarm display when the supply current is more than the rated current. 제 1 항에 있어서,The method of claim 1, 선로의 출력측에서 발생하는 고조파 성분을 제거하는 고조파 필터부가 더 구비되는 것을 특징으로 하는 고압계기용 단자대. High-voltage instrument terminal block characterized in that the harmonic filter unit for removing the harmonic components generated on the output side of the line is further provided.
KR1020070097841A 2007-09-28 2007-09-28 Terminal Box KR101013458B1 (en)

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KR101357440B1 (en) * 2012-05-14 2014-02-04 한국남부발전 주식회사 An test terminal with input current error and input voltage error deteection function
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19980049495A (en) * 1996-12-19 1998-09-15 양재신 Tent-mounted bed car
KR20020010249A (en) * 2000-07-28 2002-02-04 김정호 A Miss Wiring Detecting Device Of 3 Phase 4 Wire Type Power Meter
KR20030048642A (en) * 2001-12-12 2003-06-25 이승교 Bingo game methode for providing advertising effect
KR200348642Y1 (en) 2004-01-16 2004-04-30 주식회사 우신테크라인 Ttb
KR20050041557A (en) * 2003-10-31 2005-05-04 한국전력공사 An electronic watthours-meter and mornitoring system with electronic watthours-meter

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19980049495A (en) * 1996-12-19 1998-09-15 양재신 Tent-mounted bed car
KR20020010249A (en) * 2000-07-28 2002-02-04 김정호 A Miss Wiring Detecting Device Of 3 Phase 4 Wire Type Power Meter
KR20030048642A (en) * 2001-12-12 2003-06-25 이승교 Bingo game methode for providing advertising effect
KR20050041557A (en) * 2003-10-31 2005-05-04 한국전력공사 An electronic watthours-meter and mornitoring system with electronic watthours-meter
KR200348642Y1 (en) 2004-01-16 2004-04-30 주식회사 우신테크라인 Ttb

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