KR200155682Y1 - Control circuit ground detector - Google Patents
Control circuit ground detector Download PDFInfo
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- KR200155682Y1 KR200155682Y1 KR2019950046869U KR19950046869U KR200155682Y1 KR 200155682 Y1 KR200155682 Y1 KR 200155682Y1 KR 2019950046869 U KR2019950046869 U KR 2019950046869U KR 19950046869 U KR19950046869 U KR 19950046869U KR 200155682 Y1 KR200155682 Y1 KR 200155682Y1
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- switch
- resistors
- relay
- ground
- display unit
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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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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
본 고안은 접지검출기에 관한 것으로서, 스위치(S1),(S2)와 선택스위치(SW), 토글스위치(ST), 저항(R1~Rn) 및 저항(R1a~Rna)으로 이루어진 전압분배부(1)와, 저항(Ra~Rd)과 포토커플러(PC1),(PC2), 릴레이(RY1),(RY2), SCR(SR1),(SR2) 및 발광다이오드(D1),(D2)로 이루어진 접지검출부(2) 및 릴레이스위치(SWR1),(SWR2),(SWR3)와 릴레이(RY3), 커패시터(C) 및 리셋트스위치(SR)로 이루어진 표시부(3)를 구비하되 상기 표시부(3)를 트랜스포머(T)에 연결된 정류부(RP)에다 연결한 구성으로 사용제어전압에 따라 다양한 설비에 적용할 수 있으며, 특히 기중기 설비와 같이 동작횟수가 빈번한 이동설비에 적용할 경우 접지발생 개소 색출이 신속하고, 정확하게 되어 고장복구 시간을 단축할 수 있음은 물론 특정부위(접지부위)에 의한 고장파급현상을 방지할 수 있는 효과가 있는 제어회로 접지검출기이다.The present invention relates to a ground detector, the switch (S 1 ), (S 2 ) and the selection switch (SW), toggle switch (S T ), resistors (R 1 ~ R n ) and resistors (R 1 a ~ Rna) Voltage divider 1 consisting of, resistors Ra to Rd, photocouplers PC 1 , PC 2 , relays RY 1 , RY 2 , SCR (SR 1 ), (SR 2 ) And a ground detection unit 2 including the light emitting diodes D 1 and D 2 , and a relay switch SW R1 , SW R2 , SW R3 , a relay RY 3 , a capacitor C, and a reset. The display unit 3 includes a switch SR, and the display unit 3 is connected to the rectifier RP connected to the transformer T. The display unit 3 can be applied to various equipments according to the control voltage. When it is applied to the mobile equipment with frequent operation frequency, it is possible to find out the occurrence of grounding point quickly and accurately, which can shorten the recovery time of the fault and to prevent the fault spreading by the specific part (grounding part). A control circuit ground detector.
Description
제1도는 본 고안 제어회로 접지검출기의 상세회로도이다.1 is a detailed circuit diagram of a control circuit ground detector of the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 전압분배부 2 : 접지검출부1: Voltage divider 2: Ground detector
3 : 표시부 RP : 정류부3: display part RP: rectification part
PC1, PC2: 포토커플러 RY1~RY3: 릴레이PC 1 , PC 2 : Photocoupler RY 1 ~ RY 3 : Relay
SWR1~SWR3: 릴레이스위치 SW : 선택스위치SW R1 ~ SW R3 : Relay switch SW: Selection switch
SR: 리셋트스위치 T : 트랜스포머S R : Reset switch T: Transformer
SR1,SR2: SCRSR 1 , SR 2 : SCR
본 고안은 접지검출기에 관한 것으로서, 특히 전기제어 회로상에 접지발생시 신속정확하게 조치가 요구되는 곳에서 접지검출 표시기에 의한 이상발생요인을 검출하는 제어회로 접지검출기에 관한 것이다.The present invention relates to a ground detector, and more particularly, to a control circuit ground detector for detecting a cause of an abnormality caused by the ground detection indicator in a place where a quick and accurate action is required when a ground occurs on an electrical control circuit.
일반적으로 운전자의 조작신호에 의해 제어가 되는 시스템에서는 회로접지에 의한 시스템 이상현상은 제어불능 및 시스템 오동작을 불러 일으키게 된다.In general, in a system controlled by a driver's operation signal, a system abnormality caused by circuit grounding causes uncontrollability and system malfunction.
또한 취약한 환경(고열, 진동, 분진)에 설치된 시스템이 제어회로 이상발생(예 : 부품의 열화, 접지, 접점불량)시 원인추적이 여러 가지로 예상되고 각 장치별 제어회로의 케이블 루트가 복잡하기 때문에 고정발생부위나 위치를 찾아내는 데 시간이 많이 소요된다.In addition, when a system installed in a vulnerable environment (high temperature, vibration, dust) causes abnormal control circuits (e.g. deterioration of components, grounding, poor contact), various causes can be traced, and the cable route of each circuit is complicated. Because of this, it takes a lot of time to find the fixed part or location.
이와 같이 이동설비의 접지현상은 전 제어회로에 동시에 이상현상을 가져오므로 신속한 조치가 이루어지지 않으면 대형사고를 유발한다.In this way, the grounding phenomenon of the mobile equipment causes abnormality in all the control circuits at the same time, and if a quick action is not taken, it causes a large accident.
따라서 대형설비의 제어회로에는 접지검출기가 적용되게 되는데 종래의 접지검출기는 접지검출시만 램프가 점등되고 조건이 해제되면 램프가 소등되는 것으로서, 순간 접지(단시간 접지)시에는 원인추적이 늦어지게 되므로 공정에도 막대한 영향을 미치게 되는 문제가 있다. 또한 램프에 의해서만 접지여부를 확인할 수 있는 문제로 인하여 램프를 계속 주시하지 않으면 접지발생순간을 놓치기 쉽다고 하는 문제점도 있다.Therefore, the ground detector is applied to the control circuit of the large equipment. In the conventional ground detector, the lamp is turned on only when the ground detection is detected, and the lamp is turned off when the condition is released. There is a problem that has a huge impact on the process. In addition, there is a problem that it is easy to miss the moment of grounding if you do not keep an eye on the lamp due to the problem that can be confirmed whether the grounding only by the lamp.
본 고안은 상기한 실정을 감안하여 종래 접지검출기의 문제점을 해결하고자 안출한 것으로서, 각종 제어회로에서 접지발생시 다수의 이상현상 중에서 최초에 발생한 원인을 신속정확하게 판단하여 고장개소의 추적이 용이하게 되고, 또한 고장의 진행시간을 단축하여 고장이 확대되는 것을 방지할 수 있는 제어회로 접지검출기를 제공함에 그 목적이 있다.The present invention has been devised to solve the problems of the conventional ground detector in view of the above situation, and it is easy to track the trouble spot by quickly and accurately determining the cause of the first occurrence of a number of abnormal phenomena when the ground occurs in various control circuits. It is also an object of the present invention to provide a control circuit ground detector that can shorten the progress of the fault and prevent the failure from expanding.
상기한 목적을 달성하기 위한 본 고안 접지검출기는 스위치(S1),(S2)와 선택스위치(SW), 토글스위치(ST), 저항(R1~Rn) 및 저항(R1a~Rna)으로 이루어진 전압분배부(1)와, 저항(Ra~Rd)과 포토커플러(PC1),(PC2), 릴레이(RY1),(RY2), SCR(SR1),(SR2) 및 발광다이오드(D1),(D2)로 이루어진 접지검출부(2) 및 릴레이스위치(SWR1),(SWR2),(SWR3)와 릴레이(RY3), 커패시터(C) 및 리셋트스위치(SR)로 이루어진 표시부(3)를 구비하되 상기 표시부(3)를 트랜스포머(T)에 연결된 정류부(RP)에다 연결하여서 구성됨을 특징으로 한다.The present invention ground detector for achieving the above object is a switch (S 1 ), (S 2 ) and the selection switch (SW), toggle switch (S T ), resistors (R 1 ~ Rn) and resistors (R 1 a ~) A voltage divider 1 consisting of Rna, resistors Ra to Rd, photocouplers PC 1 , PC 2 , relays RY 1 , RY 2 , SCR 1 , SR 2 ) and the ground detection unit 2 consisting of the light emitting diodes D 1 and D 2 , and the relay switches SW R1 , SW R2 , SW R3 , the relay RY 3 , the capacitor C, and The display unit 3 includes a reset switch S R , and the display unit 3 is connected to the rectifier RP connected to the transformer T.
이하 첨부도면을 참조하여 본 고안 접지검출기의 작용 및 효과를 상세하게 설명한다.Hereinafter, with reference to the accompanying drawings will be described in detail the operation and effect of the present invention ground detector.
제1도는 본 고안 제어회로 접지검출기의 상세회로도로서, 전기적 제어전원의 접지유무를 판별 및 신속히 인터록(interlock)할 수 있는 것으로서 선택스위치(SW)에 의해 입력전압의 선택이 가능하며, 제어전원의 입력된 전원(P),(N)이 전압분배부(1)의 직렬저항(R1~Rn, R1a~Rna)에 의해 전압분배가 이루어지면, 포토커플러(PC1),(PC2)에 내장된 다이오드에는 낮은 전압(포토커플러 동작전압 이하)이 걸리게 되므로 포토커플러(PC1),(PC2)는 온(ON)될 수 없다. 그리고 입력전압의 중간전압이 될 수 있는 토글스위치(ST) 부위에서 접지를 시켜 놓고 제어 입력전원(P),(N) 중 어느 하나에 접지가 발생하게 되면 접지가 발생된 P 또는 N 상↔ST(영 전위점)구간은 영 전위가 되고, 반대쪽의 입력부 ST(영 전위점)↔P 또는 N상은 높은 전압(포토 커플러 동작전압)이 발생되어 포토커플러(PC1),(PC2)가 온되어 바이어스저항(Rb),(Rd)에 전압이 발생되어 SCR을 동작시킴으로써 발광다이오드(D1),(D2)가 점등되고, 릴레이(RY1),(RY2)가 동작하여 릴레이 접점 즉, 릴레이스위치(SWR1),(SWR2)가 온되어 부저(BZ)가 울림과 동시에 접지검출신호를 출력한다. 또 릴레이스위치(SWR1),(SWR2)의 온으로 릴레이(RY3)가 동작하여 릴레이스위치(SWR3)가 온되게 되므로 어느 상(P),(N)의 접지발생시 이를 신속하게 알 수 있고, 인터록회로를 구성하여 설비를 신속하게 정지시킬 수 있다.1 is a detailed circuit diagram of the control circuit ground detector of the present invention, which can determine whether the ground of the electrical control power supply is grounded and can quickly interlock the input voltage by the selection switch SW. When the input power P and N are divided by the series resistors R 1 to Rn and R 1 a to Rna of the voltage divider 1 , the photocoupler PC 1 and PC 2 The low voltage (below the photocoupler operating voltage) is applied to the built-in diode so that the photocouplers PC 1 and PC 2 cannot be turned on. If the ground is generated at the toggle switch (S T ), which can be the intermediate voltage of the input voltage, and the ground is generated at any one of the control input power (P) and (N), the ground is generated P or N phase ↔ The S T (zero potential point) section becomes the zero potential, and the opposite input section S T (zero potential point) ↔P or N phase generates a high voltage (photo coupler operating voltage), causing the photocoupler (PC 1 ), (PC 2 ) Is turned on to generate voltages on the bias resistors R b and R d to operate the SCR to turn on the light emitting diodes D 1 and D 2 , and the relays RY 1 and RY 2 The relay contacts, that is, the relay switches SW R1 and SW R2 are turned on to output the ground detection signal at the same time as the buzzer BZ rings. In addition, the relay RY 3 operates by turning on the relay switches SW R1 and SW R2 so that the relay switch SW R3 is turned on so that it can be quickly known when the ground of any phase P or N is generated. The interlock circuit can be configured to stop the equipment quickly.
접지발생시 발생된 입력단(플러스 및 마이너스) 판별을 위해 발광다이오드(D1),(D2)를 회로화시켰고 센서의 상태테스트를 위해 테스트스위치(S1),(S2)를 회로에 포함시켰다.The LEDs (D 1 ) and (D 2 ) are circuitized to identify the input terminals (plus and minus) generated during grounding, and the test switches (S 1 ) and (S 2 ) are included in the circuit for the state test of the sensor. .
이상에서 설명한 바와 같이 작용하는 본 고안은 사용제어전압에 따라 다양한 설비에 적용할 수 있으며, 특히 기중기 설비와 같이 동작횟수가 빈번한 이동설비에 적용할 경우 접지발생 개소 색출이 신속하고, 정확하게 되어 고장복구시간을 단축할 수 있음은 물론 특정부위(접지부위)에 위한 고장파급현상을 방지할 수 있는 효과가 있는 것이다.The present invention, which works as described above, can be applied to various equipments according to the used control voltage. Especially, when it is applied to mobile equipment with frequent operation times such as crane equipment, the occurrence of grounding point can be detected quickly and accurately. Not only can it shorten the time, but it is also effective in preventing the fault spreading for a specific part (grounding part).
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Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019950046869U KR200155682Y1 (en) | 1995-12-26 | 1995-12-26 | Control circuit ground detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019950046869U KR200155682Y1 (en) | 1995-12-26 | 1995-12-26 | Control circuit ground detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR970045263U KR970045263U (en) | 1997-07-31 |
| KR200155682Y1 true KR200155682Y1 (en) | 1999-09-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019950046869U KR200155682Y1 (en) | 1995-12-26 | 1995-12-26 | Control circuit ground detector |
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| Country | Link |
|---|---|
| KR (1) | KR200155682Y1 (en) |
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1995
- 1995-12-26 KR KR2019950046869U patent/KR200155682Y1/en not_active IP Right Cessation
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| Publication number | Publication date |
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| KR970045263U (en) | 1997-07-31 |
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