KR20050082134A - 3-phase current circulation display - Google Patents

3-phase current circulation display Download PDF

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Publication number
KR20050082134A
KR20050082134A KR1020040010526A KR20040010526A KR20050082134A KR 20050082134 A KR20050082134 A KR 20050082134A KR 1020040010526 A KR1020040010526 A KR 1020040010526A KR 20040010526 A KR20040010526 A KR 20040010526A KR 20050082134 A KR20050082134 A KR 20050082134A
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KR
South Korea
Prior art keywords
phase
microprocessor
current
display
displayed
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KR1020040010526A
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Korean (ko)
Inventor
김한준
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삼화이오씨알 주식회사
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Priority to KR1020040010526A priority Critical patent/KR20050082134A/en
Publication of KR20050082134A publication Critical patent/KR20050082134A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/04—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member
    • B26D1/06—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member wherein the cutting member reciprocates
    • B26D1/08—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member wherein the cutting member reciprocates of the guillotine type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/01—Means for holding or positioning work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/06—Arrangements for feeding or delivering work of other than sheet, web, or filamentary form
    • B26D7/0625—Arrangements for feeding or delivering work of other than sheet, web, or filamentary form by endless conveyors, e.g. belts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D2210/00—Machines or methods used for cutting special materials
    • B26D2210/02—Machines or methods used for cutting special materials for cutting food products, e.g. food slicers

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

본발명은 3상전류 순환표시기에 관한 것으로 특히 계전기가 자동적으로 일정시간 임의로 조정된 간격으로 3상(R,S,T상)전류값을 순환 표시토록 하여 운전자로 하여금 3상의 상태를 지속적으로 개별적으로 감시할 수 있도록하기 위하여 외부신호를 감지하는 변류기(1)를 통해 감지된 신호를 필터(2)를 통해 마이크로 프로세서(4)로 송출하도록되고 상기 마이크로 프로세서(4)에는 모든 동작의 설정값과 비밀번호 동작치등을 기억하는 EEPM(3)으로부터 정보가 입출력하도록되고 또한 상기 마이크로프로세서(4)에는 전류설정과 기능선정 및 테스트 및 리세트기능을 갖는 세렉션스위치(6)으로부터 받아 동작하도록되고, 또 상기 마이크로프로세서(4)의 출력은 과전류, 결상, 불평형이나 역상, 구속, 부족전류등을 출력하여 7세그멘트(5)로하여금 표시기로서 표시토록한 것이다.The present invention relates to a three-phase current circulation indicator, and in particular, the relay automatically displays the three-phase (R, S, T phase) current value at an arbitrarily adjusted interval for a certain period of time so that the driver can continuously In order to be able to monitor the signal transmitted through the current transformer 1 for sensing the external signal to the microprocessor 4 through the filter 2 to the microprocessor 4, the set value and password of all operations Information is inputted and outputted from the EEPM 3 storing operation values, and the microprocessor 4 receives and operates from a selection switch 6 having a current setting, function selection, test and reset functions. The microprocessor 4 outputs an overcurrent, an open phase, an unbalanced or reversed phase, a restraint, an undercurrent, and the like to display the seven segments 5 as a gold indicator. One will.

Description

3상 전류 순환표기{omitted}3-phase current cycling notation

본 발명은 3상 전류 순환표시기에 관한 것으로 특히 패널 매입 전류계형 디지털 다기능 계전기에 있어서 3상(R,S,T相) 전류를 일정한 임의시간마다 지속적으로 순환 표시토록하는 기기에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a three-phase current circulation indicator, and more particularly, to a device for continuously displaying a three-phase (R, S, T phase) current at a certain arbitrary time in a panel embedded ammeter type digital multifunction relay.

종래의 전자식 과전류 계전기에 있어서는 교류 3상 중에서 하나의 상(相)만의 전류만을 표시하도록되고 나머지 2개 상에 관해서는 표시되지 않고 있으므로 이를 알기 위해서는 다시 지정하여야 하는 불편이 있었다.In the conventional electronic overcurrent relay, only the current of only one phase of the three phases of AC is displayed and not displayed for the other two phases.

본 발명은 상기와 같은 불편을 해소하기 위하여 계전기가 자동적으로 일정 임의시간 간격으로 3상을 개별적으로 순환하여 표시토록 함으로서 운전자로 하여금 3상의 상태를 지속적으로 예를 들어 3상중 어느 한상이라도 과전류나 결상 및 불평형 및 역상 구속 부족전류등을 개별 감시할 수 있도록함으로서 계통 운전을 보다 안정적으로 운용할 수 있도록함에 있다.According to the present invention, the relay automatically cycles and displays the three phases individually at predetermined time intervals in order to alleviate the inconveniences described above. In addition, the system can be operated more stably by monitoring the unbalanced and reversed phase restraint undercurrent separately.

상기와 같은 본 발명의 과제를 해결하기 위한 블록 다이그램이 도1에 표시되어 있고 도2는 디스프레이 되는 상태를 설명하고 있다.A block diagram for solving the problems of the present invention as described above is shown in FIG. 1 and FIG. 2 illustrates a display state.

즉 도1에서 외부 전원을 수전하여 이하 설명하는 각회로부를 동작하도록 전원이 공급되도록되고, 외부 신호 입력을 감지하는 CT로 표시되는 변류기(1)의 출력은 로우 페스 필터(Low pass Filter)(2)를 통해 여과되어 아날로그 디지털변환기(A/D Convertor)의 역할을 할 수 있는 마이크로 프로세서(MCU)(4)에 입력됨으로서 후술하는 7세그멘트로되는 디스프레이(5)에 표시하도록되고 또 출력 릴레이(7)를 통해서는 과전류나 결상, 불평형, 역상, 구속 또는 부족전류에 의해 동작하도록되어 있다. 상기한 마이크로 프로세서(4)에는 세렉션스위치(6)를 통해 전류 요소 설정치, 기능설정 및 테스트와 리세트할 수 있도록 되어 있고, EEPROM(3)을 통해서는 모든 설정치나 동작원인, 동작치 비밀번호의 입력내용등을 기억하거나 이를 마이크로 프로세서(4)에 송출하도록 구성함으로서 이루어진 것이다.That is, power is supplied to operate each circuit unit described below by receiving external power in FIG. 1, and the output of the current transformer 1, which is indicated by CT sensing an external signal input, is a low pass filter 2 The filter is inputted to a microprocessor (MCU) 4 that can be filtered through the A / D convertor and displayed on the display 5, which is made up of 7 segments, to be described later. ) Is operated by overcurrent, phase loss, unbalance, reverse phase, restraint or undercurrent. The microprocessor 4 is capable of resetting the current element set value, function setting and test through the selection switch 6, and the EEPROM 3 allows the operation of the set value or the operating value password. It is made by storing the input contents and the like or sending them to the microprocessor 4.

상기와 같은 구성으로 이루언진 것이므로 외부 전원(Power supply)을 연결하여 상기한 각 회로부분에 다음 동작을 대기하도록한 뒤 변류기(1)를 통해 감지되는 3상의 전류는 필터(2)를 통해 마이크로 프로세서(4)에 입력됨으로서 EEPROM(3)과 절환스위치(6)에 의해 미리 임의로 정해진 전류설정치나 동작원인 동작치(값)등의 기능설정에 의해 디스프레이(5)에 표시토록됨과 동시 출력 계전기(7)를 통해서는 과전류나 결상, 불평형, 역상 및 구속이나 부족전류등에 의한 각종 재해로부터 사전에 예방하도록 제어할 수가 있도록 되어 있다.Since it is configured as described above, the three-phase current sensed by the current transformer 1 is connected to an external power supply to wait for the next operation in each of the circuit parts, and then the microprocessor through the filter 2. (4) is inputted to (4) so that the display can be displayed on the display (5) by the function setting such as the current setting value or the operation cause (value) which is arbitrarily determined by the EEPROM (3) and the switching switch (6) and the simultaneous output relay (7). ), It is possible to control in advance to prevent from various disasters caused by overcurrent, phase loss, unbalance, reverse phase and restraint or undercurrent.

이때 디스프레이(5)에는 각 상마다 도2에 표시와 같이 알정 시간이 경과함에 따라 R.S.T상이 각각 표시토록하는 것이다 . 예를들어 도2에 있어서는 전류를 표시하는 Amp의 램프가 점등되고 최초 3상중 R상이 도2의 L1이 점등되면서 임의로 설정한 설정치 예를들어 3.9암페어가 표시되고 임의로 설정된 시간 도시에서는 5초후 R상의 전류가 L1이 소등되고 L2가 점등되면서 설정된 전류가 표시되고 다시 5초후에 L2가 소등되고 L3이 점등되면서 T상의 전류값이 표시되고 다시 계속하여 최초의 R상으로 돌아가고 일정 시간후 다음 상인 S상이 표시되고 또 일정시간이 경과되면 T상이 표시되는 것이므로 3상 전류를 차례로 순환하면서 표시할 수가 있는 것이다.At this time, the display 5 displays each R.S.T phase as a predetermined time elapses as shown in FIG. For example, in Fig. 2, the Amp lamp indicating the current is turned on, and the R phase of the first three phases is set at random while the L1 of Fig. 2 is lit. For example, 3.9 amps is displayed and in the randomly set time city, the R phase is displayed after 5 seconds. As the current turns off L1 and turns on L2, the set current is displayed, and after 5 seconds, L2 turns off and L3 lights up, and the current value of T phase is displayed. After a certain period of time, the T phase is displayed, and the three-phase current can be cycled and displayed.

상기 디스프레이(5)를 본 발명에서는 7세그멘트로 표시했으나 부하상태를 표시하거나 고장의 원인을 문자 및 숫자나 그래프로 표시할 수 있으며 이를 위하여 발광다이오드등을 이용할 수도 있음은 물론이다. 이와 같은 기술 내용은 본 발명 계통의 숙달된 전문가이면 용이하게 이해가 될것이다.In the present invention, the display 5 is displayed in seven segments, but the load state may be displayed or the cause of the failure may be displayed in letters, numbers, or graphs. For this, a light emitting diode may be used. Such technical content will be readily understood by those skilled in the art.

이상 설명한 바와 같이 본 발명에 의하면, 종래의 3상중 특정의 1상만의 전류를 표시함으로서 특정의 상 이외의 2개상에 대한 정보를 알 수 없어 고장의 원인을 분석하고 신속 처리함에 있어 불편함이 해소되고 3상의 상태를 지속적으로 개별 감시할 수 있음으로서 계통 운전을 보다 안정적이며 효과적으로 운용할 수 있는 유용한 발명인 것이다.As described above, according to the present invention, since the current of only one specific phase is displayed in the conventional three phases, information on two phases other than the specific phase cannot be known, thereby eliminating inconvenience in analyzing the cause of the failure and promptly dealing with it. It is a useful invention to operate the system operation more stably and effectively by being able to continuously monitor the status of three phases individually.

도1은 본 발명을 설명키 위한 블록다이아그램,1 is a block diagram for explaining the present invention,

도2는 디스프레이 설명도이다.2 is an explanatory view of a display.

*도면중 부호의 설명** Explanation of symbols in the drawings *

1은 변류기, 2는 필터, 3은 EEPROM, 4는 마이크로프로세서, 5는 디스프레이, 6은 세렉션스위치, 7은 출력릴레이를 표시한다.1 represents the current transformer, 2 the filter, 3 the EEPROM, 4 the microprocessor, 5 the display, 6 the selection switch, and 7 the output relay.

Claims (2)

외부 입력을 감지하는 변류기와 로우 페스 필터를 통해 마이크로 프로세서에 입력되어 그 출력이 디스프레이에 표시토록되는것에 있어서,The current is input to the microprocessor through a current transformer and a low-pass filter that senses an external input so that its output is displayed on the display. 상기 마으크로 프로세스는 세렉션스위치를 통해 전류 요소설정치, 기능설정치 및 테스트와 리세트할 수 있도록되고,The macro process is capable of resetting with the current element setpoint, function setpoint and test via the selection switch, EEPROM을 통해 모든 설정치나 동작원인, 동작치 비밀번호의 입력내용을 기억하여 상기 마이크로 프로세서에 송출하도록됨을 특징으로하는 3상전류 순환 표시기.A three-phase current circulation indicator, characterized in that the EEPROM is to store all set values or the cause of operation, the input value of the operation value password and to send them to the microprocessor. 청구항 1에 있어서,The method according to claim 1, 디스프레이는 고장원인을 문자 또는 숫자 및 그래프로 표시할 수 있도록 발광 다이오드 또는 7세그멘트로 3상을 순차적으로 표시토록됨을 특징으로하는 3상 전류 순환표시기.The display is a three-phase current circulation indicator characterized in that the three-phase display by the light emitting diode or 7 segments in order to display the cause of the failure in letters, numbers and graphs.
KR1020040010526A 2004-02-17 2004-02-17 3-phase current circulation display KR20050082134A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105116203A (en) * 2015-08-10 2015-12-02 国网浙江省电力公司湖州供电公司 High-voltage presence indication device through monitoring leakage current of high voltage equipment

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6236947B1 (en) * 1996-05-20 2001-05-22 Crane Nuclear, Inc. Method of monitoring placement of voltage/current probes on motors
US6236197B1 (en) * 1998-05-15 2001-05-22 Abb Power T&D Company Inc. Apparatus and method for detecting tampering in a multiphase meter
US6417792B1 (en) * 2000-01-18 2002-07-09 Cirrus Logic, Inc. Single phase bi-directional electrical measurement systems and methods using ADCs

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6236947B1 (en) * 1996-05-20 2001-05-22 Crane Nuclear, Inc. Method of monitoring placement of voltage/current probes on motors
US6236197B1 (en) * 1998-05-15 2001-05-22 Abb Power T&D Company Inc. Apparatus and method for detecting tampering in a multiphase meter
US6417792B1 (en) * 2000-01-18 2002-07-09 Cirrus Logic, Inc. Single phase bi-directional electrical measurement systems and methods using ADCs

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105116203A (en) * 2015-08-10 2015-12-02 国网浙江省电力公司湖州供电公司 High-voltage presence indication device through monitoring leakage current of high voltage equipment

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