KR960025257A - Ground wire disconnection detection and warning device - Google Patents

Ground wire disconnection detection and warning device Download PDF

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Publication number
KR960025257A
KR960025257A KR1019940033511A KR19940033511A KR960025257A KR 960025257 A KR960025257 A KR 960025257A KR 1019940033511 A KR1019940033511 A KR 1019940033511A KR 19940033511 A KR19940033511 A KR 19940033511A KR 960025257 A KR960025257 A KR 960025257A
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KR
South Korea
Prior art keywords
disconnection
warning
ground wire
ground line
ground
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Application number
KR1019940033511A
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Korean (ko)
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KR970005812B1 (en
Inventor
이민기
Original Assignee
구자홍
Lg 전자주식회사
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Application filed by 구자홍, Lg 전자주식회사 filed Critical 구자홍
Priority to KR1019940033511A priority Critical patent/KR970005812B1/en
Publication of KR960025257A publication Critical patent/KR960025257A/en
Application granted granted Critical
Publication of KR970005812B1 publication Critical patent/KR970005812B1/en

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Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/18—Status alarms
    • G08B21/185—Electrical failure alarms

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  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)

Abstract

본 발명은 접지선의 단선 감지 및 경고 장치에 관한 것으로, 특히 접지선의 단선을 감지하고 이를 표시하여 단선에 의한 사고를 미연에 방지토록 한 접지선 단선 감지 및 경고 장치에 관한 것이다.The present invention relates to a disconnection detection and warning device of a ground wire, and more particularly, to a ground wire disconnection detection and warning device that detects and displays a disconnection of a ground wire to prevent an accident caused by the disconnection.

이러한 본 발명의 목적은 입력되는 교류전원을 임의의 레벨로 강하시키는 트랜스의 일차측권선과 접지선 사이에 개재되어 접지선의 단선 유무를 감지하는 접지선 단선 감지수단과, 상기 접지선 단선 감지수단에서 감지되는 결과신호에 따라 접지선의 단선유무를 판단하고 접지선 단선시 경고 제어신호를 발생하는 제어수단과, 상기 제어수단에서 출력되는 경고 제어신호에 따라 경보음을 발생하여 접지선 단선상태를 경고하는 접지선 단선 경고수단을 구비함으로써 달성된다.The object of the present invention is a ground line disconnection detecting means for detecting the disconnection of the grounding wire interposed between the primary winding of the transformer and the grounding line to drop the AC power input to any level, and the result detected by the grounding line disconnection detecting means The control means for determining the disconnection of the ground wire according to the signal and generating a warning control signal when the ground wire is disconnected, and the ground wire disconnection warning means for warning the ground wire disconnection state by generating an alarm sound according to the warning control signal output from the control means. It is achieved by having.

Description

접지선 단선 감지 및 경고 장치Ground wire disconnection detection and warning device

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

제1도는 본 발명이 적용되는 단상3선식 전원선 구조도, 제2도는 본 발명에 의한 접지선 단선 감지 및 경고 장치 블록도, 제3도는 제2도의 각부 상세 회로도, 제4도는 본 발명의 동작을 설명하기 위한 흐름도.1 is a block diagram of a single-phase three-wire power line to which the present invention is applied, FIG. 2 is a block diagram of a ground wire disconnection detection and warning device according to the present invention, FIG. 3 is a detailed circuit diagram of each part of FIG. 2, and FIG. Flowchart for illustration.

Claims (4)

입력되는 교류전원을 임의의 레벨로 강하시키는 트랜스의 일차측권선과 접지선 사이에 게재되어 접지선의단선 유무를 감지하는 접지선 단선 감지수단과, 상기 접지선 단선 감지수단에서 감지되는 결과신호에 따라 접지선의 단선유무를 판단하고 접지선 단선시 경고 제어신호를 발생하는 제어수단과, 상기 제어수단에서 출력되는 경고 제어신호에 따라 경보음을 발생하여 접지선 단선 상태를 경고하는 접지선 단선 경고수단으로 구성됨을 특징으로 하는 접지선 단선 감지 및 경고 장치.Ground wire disconnection detection means placed between the primary winding of the transformer for dropping the input AC power to an arbitrary level and the ground wire to detect the presence of disconnection of the ground wire, and disconnection of the ground wire according to the result signal detected by the ground wire disconnection detection means. A grounding wire comprising a control means for determining the presence or absence of a warning control signal when the grounding line is disconnected, and a grounding line disconnection warning means for generating an alarm sound to warn the grounding line disconnection state according to the warning control signal output from the control means. Disconnection detection and warning device. 제1항에 있어서, 상기 접지선 단선 감지수단은 상기 트랜스의 일차측으로 흐르는 전류를 따라 발광하는 포토 다이오드와 상기 포토 다이오드의 발광 유무에 따라 온 또는 오프되어 접지선 단선 감지값을 출력시키는 포토 트랜지스터로 이루어진 포토 커플러로 구성됨을 특징으로 하는 접지선 단선 감지 및 경고 장치.The device of claim 1, wherein the ground line disconnection detecting unit comprises a photodiode that emits light along the current flowing to the primary side of the transformer and a photo transistor that is turned on or off depending on whether light is emitted from the photodiode and outputs a ground line disconnection detection value. Ground line disconnection detection and warning device, characterized in that it consists of a coupler. 제1항에 있어서, 상기 접지선 단선 경고수단은 상기 제어수단에서 출력되는 경고 제어신호에 따라 경보음을 발생하여 접지선의 단선 상태를 청각적으로 표시하는 부저로 구성됨을 특징으로 하는 접지선 단선 감지 및 경고 장치.The ground line disconnection detection and warning according to claim 1, wherein the ground line disconnection warning means comprises a buzzer that generates an alarm sound according to the warning control signal output from the control means and audibly displays the disconnection state of the ground line. Device. 제3항에 있어서, 상기 접지선 단선 경고수단은 상기 제어수단에서 출력되는 경고 제어신호에 따라 발광하여 접지선의 단선 상태를 시각적으로 표시하는 발광다이오드를 더 포함하여 구성된 것을 특징으로 하는 접지선 단선 감지 및 경고 장치.[5] The ground line disconnection detection and warning of claim 3, wherein the ground line disconnection warning means further comprises a light emitting diode which visually displays the disconnection state of the ground line by emitting light according to a warning control signal output from the control means. Device. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940033511A 1994-12-09 1994-12-09 Ground line alarm device KR970005812B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940033511A KR970005812B1 (en) 1994-12-09 1994-12-09 Ground line alarm device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940033511A KR970005812B1 (en) 1994-12-09 1994-12-09 Ground line alarm device

Publications (2)

Publication Number Publication Date
KR960025257A true KR960025257A (en) 1996-07-20
KR970005812B1 KR970005812B1 (en) 1997-04-21

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ID=19400896

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Application Number Title Priority Date Filing Date
KR1019940033511A KR970005812B1 (en) 1994-12-09 1994-12-09 Ground line alarm device

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100789017B1 (en) * 2001-07-05 2007-12-26 대우조선해양 주식회사 Device for detecting a break wire of a short cable on a boat welding

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