KR20030035434A - continuous monitoring system of pumped storage generator-motor - Google Patents

continuous monitoring system of pumped storage generator-motor Download PDF

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Publication number
KR20030035434A
KR20030035434A KR1020010067530A KR20010067530A KR20030035434A KR 20030035434 A KR20030035434 A KR 20030035434A KR 1020010067530 A KR1020010067530 A KR 1020010067530A KR 20010067530 A KR20010067530 A KR 20010067530A KR 20030035434 A KR20030035434 A KR 20030035434A
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data
signal
gateway
data collector
main server
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KR1020010067530A
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Korean (ko)
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김희동
주영호
이영준
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한국전력공사
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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
    • G01R31/34—Testing dynamo-electric machines
    • G01R31/343—Testing dynamo-electric machines in operation
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
    • G01B7/023—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring distance between sensor and object
    • 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
    • G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
    • G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/30—Monitoring
    • G06F11/3003—Monitoring arrangements specially adapted to the computing system or computing system component being monitored
    • G06F11/3006—Monitoring arrangements specially adapted to the computing system or computing system component being monitored where the computing system is distributed, e.g. networked systems, clusters, multiprocessor systems

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Computing Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Quality & Reliability (AREA)
  • General Engineering & Computer Science (AREA)
  • Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)

Abstract

PURPOSE: An apparatus for monitoring a generate motor is provided to reduce a measurement time by reducing the time required to a data collection such as a gap partial discharge and interlayer shortage, process and result determination without requiring to the stop of the generator since a remote main server is communicated with a personal computer through the data collector for collecting data by using a distance sensor and an I/V converter so as to identify whether the generator is normal or not. CONSTITUTION: An apparatus for monitoring a generate motor includes a data collector(10) for processing by collecting data from a monitoring sensor mounted on a current generate motor, a gateway(20) for transmitting the data as a normalized signal by communicating and connecting with the data collector(10), a main server(30) for connecting the signal to the output terminal connected to the output terminal of the gateway(20) and a relay(40) for controlling the signal so as to smoothly transmit between the personal computers(50).

Description

발전전동기감시장치{continuous monitoring system of pumped storage generator-motor}Continuous monitoring system of pumped storage generator-motor

본 발명은 발전전동기감시장치에 관한 것으로서, 더 자세하게는 현장 발전소의 이상유무를 확인할 수 있도록 거리센서와 I/V컨버터를 통해 데이타를 수집하는 데이타수집기를 통해 원거리의 메인서버와 개인용컴퓨터에 통신하게 되므로 운전중에 건전성을 평가하게 되므로 발전기의 정지가 불피요하고 공극 부분방전 및 층간 단락 등의 데이타 수집, 처리 및 결과 판정에 소요되는 시간이 축소되는 발전전동기감시장치에 관한 것이다.The present invention relates to a power generation motor monitoring apparatus, and more particularly, to communicate with a main server and a personal computer at a remote location through a data collector which collects data through a distance sensor and an I / V converter to check whether there is an abnormality of an on-site power plant. Therefore, it is necessary to evaluate the health during operation, and thus it is unnecessary to stop the generator and to reduce the time required for data collection, processing, and result determination such as air gap partial discharge and interlayer short circuit.

국내 발전기 고정자 권선의 정지중 절연진단법은 절연저항 시험, 성극지수 시험, 교류전류시험, 유전정접시험 및 부분방전시험등을 수행하였다 이러한 진단법은 회전자 권선의 절연진단에 있기 때문에 정지중에 절연저항시험, 성극지수 시험 및 분단저압시험등 간이 진단방법이 사용되고 진단을 위해서는 발전기를 정지해야되는 번거러움이 있다.Insulation diagnostics during stop of domestic generator stator windings were conducted with insulation resistance test, polarity index test, AC current test, dielectric tangent test and partial discharge test. In addition, simple diagnostic methods, such as the polarity index test and the divided low pressure test, are used, and the generator has to be stopped for diagnosis.

또한, 발전전동기의 건전성 평가를 위해 운전중 진단장치가 고정자와 회전자 사이의 공극, 고정자 권건의 부분 방전, 회전자 권선의 층간 단락 등이 각각 단독으로 사용하고 있기 때문에 종합적인 건전성 평가를 하기에는 어려운 문제점을 가지고 있다.In addition, it is difficult to comprehensively assess the integrity of the power generator because the diagnostic device during operation is used alone by the gap between the stator and the rotor, partial discharge of the stator winding, and interlayer short circuit of the rotor winding. I have a problem.

본 발명은 이와 같은 종래의 제반 문제점을 해결하기 위한 것으로서 그 목적은 발전 전동기 건전성 평가를 위해 정지가 불필요한 운전중 감지장치가 작동할 수 있도록 부분방전, 층간 단락 및 공극 등 센서 신호 수집, 분석 및 결과 판정을 동시에 처리하는 장치를 마련하고, 사용자 누구나 편리하고 쉽게 사용할 수 있도록 계측적으로 디스플레이 화면에 공급할 수 있도록 하며, 다양한 경보기능과 항상 감시한 결과를 데이타 베이스로 저장하여 설비 이상 유무를 사용자가 즉시 알 수 있도록 하는데 있다.The present invention is to solve such a conventional problem, the purpose of the sensor signal collection, analysis and results such as partial discharge, interlayer short circuit and air gap so that the detection device can be operated during stop operation for power generation motor health evaluation It is equipped with a device to process the judgment at the same time, it can be supplied to the display screen to the user for convenient and easy use by all users, and the various alarm functions and the monitoring results are always stored in a database so that the user can immediately check whether there are any abnormalities. It is to make it known.

도 1은 본 발명의 실시예에 따른 발전 전동기를 감지할 수 있는 장치의 블럭구성도이다.1 is a block diagram of a device capable of detecting a power generation motor according to an embodiment of the present invention.

도 2는 본 발명의 실시예에 따른 회전자 권선 층간단락데이타 및 자속밀도에 표시한 그래프이다.2 is a graph showing rotor winding interlayer short circuit data and magnetic flux density according to an embodiment of the present invention.

-도면의 주요부분에 대한 부호설명-Code descriptions for the main parts of the drawings

10;데이타수집기11;I/V컨버터10; data collector 11; I / V converter

12;거리센서20;게이트웨이기12; distance sensor 20; gateway

30;메인서버40;중계기30; main server 40; repeater

50;개인용컴퓨터50; personal computer

이하, 이 발명이 속하는 기술분야에서 통상의 지식을 갖는 자가 이 발명을 용이하게 실시할 수 있을 정도로 상세히 설명하기 위하여, 이 발명의 가장 바람직한 실시예를 첨부된 도면을 참조로 하여 상세히 설명하기로 한다. 이 발명의 목적, 작용효과를 포함하여 기타 다른 목적들, 특징점들, 그리고 동작상의 이점들이 바람직한 실시예의 설명에 의해 보다 명확해질 것이다.DETAILED DESCRIPTION Hereinafter, the most preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily implement the present invention. . Other objects, features, and operational advantages, including the purpose, working effects, and the like of the present invention will become more apparent from the description of the preferred embodiment.

참고로 여기에서 개시되는 실시예는 여러가지 실시가능한 예중에서 당업자의 이해를 돕기 위하여 가장 바람직한 예를 선정하여 제시한 것일 뿐, 이 발명의 기술적 사상이 반드시 이 실시예만 의해서 한정되거나 제한되는 것은 아니고, 본 발명의 기술적 사상을 벗어나지 않는 범위내에서 다양한 변화와 변경이 가능함은 물론, 균등한 타의 실시예가 가능함을 밝혀 둔다.For reference, the embodiments disclosed herein are only presented by selecting the most preferred examples to help those skilled in the art from the various possible examples, the technical spirit of the present invention is not necessarily limited or limited only by this embodiment, Various changes and modifications are possible within the scope without departing from the technical spirit of the present invention, as well as other equivalent embodiments will be found.

도 1은 본 발명의 실시예에 따른 발전 전동기를 감지할 수 있는 장치의 블럭구성도이고, 도 2는 본 발명의 실시예에 따른 회전자 권선 층간단락데이타 및 자속밀도에 표시한 그래프이다.1 is a block diagram of a device capable of detecting a power generation motor according to an exemplary embodiment of the present invention, and FIG. 2 is a graph showing rotor winding interlayer short circuit data and magnetic flux density according to an exemplary embodiment of the present invention.

본 발명은 발전 전동기를 실시간으로 감지할 수 있는 장치에 관한 것으로서, 도 1 내지 도 2에서 보는 바와 같이 현장의 발전 전동기에 장착된 감시용 센서로부터 데이타를 수집하여 처리하는 데이타수집기(10)와, 상기 데이타수집기(10)와 통신 연결하여 규정된 신호로 데이타를 통제하면서 외부에 전달할 수 있도록 하는 게이트웨이기(20)(gateway)와, 상기 게이트웨이기(20)의 출력단에 연결되어 수신된 신호가 출력단에 연결된 메인서버(30)기와 개인용컴퓨터(50)간에 원할하게 전달될수 있도록 신호를 통제하는 중계기(40)가 연결되는 구성을 갖는다.The present invention relates to a device capable of detecting a power generation motor in real time, as shown in Figs. 1 to 2 and a data collector 10 for collecting and processing data from the monitoring sensor mounted on the power generation motor in the field, and A gateway connected to the data collector 10 to transmit data to the outside while controlling data with a prescribed signal, and a signal received by being connected to an output terminal of the gateway 20 The repeater 40 for controlling a signal so that the main server 30 connected to the personal computer 50 can be smoothly transmitted between the main server 30 and the personal computer 50 is connected.

상기 데이타수집기(10)는 RS-485 통신으로 게이트웨이기(20)로 데이타를 전송하고, 층간단락 신호를 제어와 부분 방전을 측정할 수 있으며, 공극신호를 측정하기 위해 전류를 전압으로 변환화는 I/V컨버터(11)와, 거리를 감지할 수 있는 거리센서(12)가 연결되는 구성을 갖는다.The data collector 10 may transmit data to the gateway 20 through RS-485 communication, control the interlayer short signal and measure partial discharge, and convert current into voltage to measure the air gap signal. The I / V converter 11 and the distance sensor 12 capable of detecting the distance are connected to each other.

상기 게이트웨이기(20)는 데이타 수집기 사이의 RS485통신을 통해 데이타를 전송하게 되며 데이타를 통제하고 상위로부터의 명령을 하부로 전달하기 위해 메인서버(30)기와 개인용컴퓨터(50)간에 TCP/IP통신을 수행할 수 있도록 연결되어 있다.The gateway device 20 transmits data through RS485 communication between the data collectors, and controls TCP / IP communication between the main server 30 and the personal computer 50 to control the data and transfer commands from the upper part to the lower part. Connected to perform

이와 같이 구성되는 본 발명의 작용효과를 상세히 설명하면 다음과 같다.Referring to the effects of the present invention configured as described in detail as follows.

본 발명은 발전 전동기를 실시간으로 감지할 수 있는 장치에 관한 것으로서, 도 1 또는 도 2에서 보는 바와 같이 현장에 설치되어 있는 발전-전동기의 공극을 측정하기 위해 먼저 메인서버(30)와 개인컴퓨터(50)간에 중계기(40)는 게이트웨이기(20)로부터 TCP/IP통신 신호를 수신하여 데이타수집기에서 얻어진 데이타로부터 전류를 거리로 환산하여 주는 실험식에 의해서 공극을 계산하게 된다The present invention relates to a device capable of detecting a power generation motor in real time, as shown in FIG. The repeater 40 receives the TCP / IP communication signal from the gateway 20 and calculates the air gap by an empirical formula for converting the current from the data obtained by the data collector into distance.

실험식은 데이타수집기(10)의 거리센서(12)로부터 얻어진 감지된 거리에 대한 전류값을 거리로 환산하는 식은 다음과 같다.The empirical formula converts the current value of the detected distance obtained from the distance sensor 12 of the data collector 10 into a distance as follows.

이다. to be.

이 실험식의 선형구간은 5 내지 50[mm]이며, 전류로는 4 내지 20[mA]로 나카내소 선형 구간내의 거리만이 측정가능하다. 거리센서(12)로부터의 측정된 전류는 I/V컨버터(11)에 의해서 전압을 변환되며 전류와 거리의 변환식에 의해 다시 전류로 환원되는 것이다.The linear section of this empirical formula is 5 to 50 [mm] and the current can be measured from 4 to 20 [mA]. The measured current from the distance sensor 12 converts the voltage by the I / V converter 11 and is reduced back to the current by the conversion formula of the current and the distance.

한편, 부분방전측정은 데이타의 취득부분에서는 입력신호가 전압(V)이기 때문에 이를 [mA]단위로 변환하여 메인서버(30)로 전달하여 특정자는 개인용컴퓨터(50)를 통해 데이타를 처리하게 된다.On the other hand, in the partial discharge measurement, since the input signal is a voltage (V) in the acquisition portion of the data, it is converted into [mA] units and transferred to the main server 30 so that the specific person processes the data through the personal computer 50. .

이때 메인서버(30)는 처리하여 동기화시킨 데이타 신호를 위상별 혹은 크기별로 분류하고 각각의 크기 및 위상에 대한 빈도수를 결정하게 된다.At this time, the main server 30 classifies the processed and synchronized data signal by phase or magnitude and determines the frequency for each magnitude and phase.

또한, 회전자 권선 층간 단락데이타 및 자속밀도는 첨부도면 도 2에서 보듯이 플럭스 덴시티(flux density)가 극한값을 갖는 위치는 플럭스 프로브(flux probe) 데이타가 '0'을 지나는 지검에서 다음과 같은 플럭스 덴시티(flux density:FD)식을 구하게 된다.In addition, the rotor winding interlayer short circuit data and magnetic flux density are shown in FIG. 2 where the flux density has an extreme value at the test where the flux probe data passes '0' as follows. The flux density (FD) equation is obtained.

이다. to be.

즉, 24극에 의한 플럭스 프로브 데이타는 12개의 비슷한 형태의 파형을 만들어내고 1주기의 파형은 전압(V)축을 기준으로 서로 유사한 형태의 신호가 12번 반복하기 때문에 적분한 값은 플럭스 프로브 데이타가 '0'점 근처를 지날때 최대값을 갖게 된다.That is, the flux probe data generated by 24 poles generates 12 similar waveforms, and the waveform of one cycle generates 12 similar waveforms based on the voltage (V) axis. The maximum value is obtained when passing near the '0' point.

이와 같이 작용하는 본 발명은 현장 발전소의 이상유무를 확인할 수 있도록 거리센서와 I/V컨버터를 통해 데이타를 수집하는 데이타수집기를 통해 원거리의 메인서버와 개인용컴퓨터에 통신하게 되므로 운전중에 건전성을 평가하게 되므로 발전기의 정지가 불피요하고 공극 부분방전 및 층간 단락 등의 데이타 수집, 처리 및 결과 판정에 소요되는 시간이 축소되어 측정시간이 줄어드는 효과를 갖는다.In this way, the present invention communicates with a remote main server and a personal computer through a data collector that collects data through a distance sensor and an I / V converter to check the abnormality of the on-site power plant. Therefore, it is unnecessary to stop the generator, and the time required for data collection, processing, and result determination such as partial discharge of air gap and short circuit between floors is reduced, which reduces the measurement time.

또한, 본 발명은 발전-전동기 고정자 권선의 절연열화 정도, 회전자 권선의 층간단락 발생여부 및 고정자와 회전자 사이의 편심 등을 종합적으로 진단 및 평가할 수 있음과 동시에 발전- 전동기의 이상 상태를 조기에 발견할 수 있는 효과를 갖는다.In addition, the present invention is capable of comprehensively diagnosing and evaluating the degree of insulation deterioration of a power generation-motor stator winding, whether an interlayer short circuit occurs in the rotor winding, and the eccentricity between the stator and the rotor. Has the effect found on.

Claims (4)

현장의 발전 전동기에 장착된 감시용 센서로부터 데이타를 수집하여 처리하는 데이타수집기(10)와, 상기 데이타수집기(10)와 통신 연결하여 규정된 신호로 데이타를 통제하면서 외부에 전달할 수 있도록 하는 게이트웨이기(20)(gateway)와, 상기 게이트웨이기(20)의 출력단에 연결되어 수신된 신호가 출력단에 연결된 메인서버(30)기와 개인용컴퓨터(50)간에 원할하게 전달될 수 있도록 신호를 통제하는 중계기(40)가 연결되어 이루어진 발전전동기감시장치.A data collector 10 for collecting and processing data from a monitoring sensor mounted on an on-site power generation motor, and a gateway device for communicating with the data collector 10 and controlling the data with a prescribed signal and transmitting the data to the outside. Repeater for controlling a signal so that the received signal connected to the output terminal of the gateway device 20 can be smoothly transmitted between the main server 30 and the personal computer 50 connected to the output terminal (gateway). Power generation motor monitoring device that is connected 40). 제 1항에 있어서, 상기 데이타수집기(10)는 RS-485 통신으로 게이트웨이기(20)로 데이타를 전송하고, 층간단락 신호를 제어와 부분 방전을 측정할 수 있으며 동시에 공극신호를 측정하기 위해 전류를 전압으로 변환화는 I/V컨버터(11)와, 거리를 감지할 수 있는 거리센서(12)가 연결되어 이루어진 발전전동기감시장치.The data collector (10) according to claim 1, wherein the data collector (10) transmits data to the gateway (20) by RS-485 communication, controls the interlayer short signal and measures the partial discharge, and simultaneously the current to measure the air gap signal. To convert the voltage into voltage I / V converter 11, and the distance sensor 12 that can detect the distance is a generation motor monitoring device made. 제 1항에 있어서, 상기 게이트웨이기(20)는 데이타 수집기 사이의 RS485통신을 통해 데이타를 전송하게 되며 데이타를 통제하고 상위로부터의 명령을 하부로 전달하여 메인서버(30)기와 개인용컴퓨터(50)간에 연결된 TCP/IP통신을 통해 발전 전동기 운전중 고정자 권선의 부분방전과 회전자 권선의 층간단락 및 고정자와 회전자 사이의 편심을 진단하여 출력할 수 있도로 하는 발전전동기감시장치.The system of claim 1, wherein the gateway device 20 transmits data through RS485 communication between the data collectors, controls the data, and transmits commands from the upper part to the lower part of the main server 30 and the personal computer 50. A generator motor monitoring device that can diagnose and output partial discharge of stator winding, interlayer short circuit of rotor winding and eccentricity between stator and rotor during operation of power generation motor through TCP / IP communication. 제 1항에 있어서, 상기 메인서버와 개인용컴퓨터는 중계기를 통해 데이타 수집기가 측정하여 수집한 발전 전동기 정상운전중 고정자 권선의 부분방전과 회전자 권선의 층간단락 및 고정자와 회전자 사이의 편심을 진단하여 출력할 수 있도록 회전자 권선 층간단락데이타 및 자속밀도를 측정하여 연산하도록 연결되어 이루어 진 발전전동기감시장치.The method of claim 1, wherein the main server and the personal computer diagnose the partial discharge of the stator winding, the interlayer short circuit of the rotor winding, and the eccentricity between the stator and the rotor during normal operation of a power generation motor measured and collected by a data collector through a repeater. A generator motor monitoring device which is connected to calculate and measure rotor winding interlayer short circuit data and magnetic flux density so that it can be outputted.
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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100728762B1 (en) * 2006-12-04 2007-06-14 주식회사 대덕시스템 System for monitoring partial discharge and inter layer short of high voltage circulator by on line
KR100728761B1 (en) * 2006-12-04 2007-06-14 주식회사 대덕시스템 Method for monitoring partial discharge and inter layer short of high voltage circulator
KR100763613B1 (en) * 2007-01-31 2007-10-04 주식회사 대덕시스템 Method for analyzing automatically inter layer short of rotator in high voltage circulator
KR100786229B1 (en) * 2005-11-08 2007-12-24 충북대학교 산학협력단 On-Line Fault Detecting Method for 3-Phase Induction Motor
KR100905971B1 (en) * 2007-08-09 2009-07-06 한국전력공사 System and method for on-Line diagnostic of Generator-Motor
KR100931540B1 (en) * 2002-12-23 2009-12-14 주식회사 포스코 Rotor Short Circuit Monitoring Method Considering Synchronous Generator Operation Status
KR100933197B1 (en) * 2007-12-17 2009-12-22 한국전기연구원 System and method for monitoring transient stability using localized pager information
KR101019574B1 (en) * 2008-12-04 2011-03-08 한전케이피에스 주식회사 Equipment for monitoring rotor clearance of generator
KR101035497B1 (en) * 2010-08-17 2011-05-27 주식회사 대덕시스템 Method for total monitering on-line health of the generator
KR101140613B1 (en) * 2010-04-05 2012-05-02 한국전기연구원 On-site fault diagnosis method of motor
CN105699839A (en) * 2016-01-28 2016-06-22 云南电网有限责任公司电力科学研究院 A voltage transformer winding working state detection method and system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR960043398A (en) * 1995-05-29 1996-12-23 이해규 Remote monitoring device of cogeneration generator
JPH09252550A (en) * 1996-03-15 1997-09-22 Mitsubishi Electric Corp Power system monitor control system
KR20000000331A (en) * 1999-10-13 2000-01-15 김진태 Digital Motor Control Unit and Remote Motor Control System
KR20010086815A (en) * 2000-03-03 2001-09-15 이종훈 Method for inspecting windings of generator stator
KR200267127Y1 (en) * 2001-10-25 2002-03-09 한국전력공사 watching performance device tendum style of diesel generator for atomic energy power station

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR960043398A (en) * 1995-05-29 1996-12-23 이해규 Remote monitoring device of cogeneration generator
JPH09252550A (en) * 1996-03-15 1997-09-22 Mitsubishi Electric Corp Power system monitor control system
KR20000000331A (en) * 1999-10-13 2000-01-15 김진태 Digital Motor Control Unit and Remote Motor Control System
KR20010086815A (en) * 2000-03-03 2001-09-15 이종훈 Method for inspecting windings of generator stator
KR200267127Y1 (en) * 2001-10-25 2002-03-09 한국전력공사 watching performance device tendum style of diesel generator for atomic energy power station

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100931540B1 (en) * 2002-12-23 2009-12-14 주식회사 포스코 Rotor Short Circuit Monitoring Method Considering Synchronous Generator Operation Status
KR100786229B1 (en) * 2005-11-08 2007-12-24 충북대학교 산학협력단 On-Line Fault Detecting Method for 3-Phase Induction Motor
KR100728762B1 (en) * 2006-12-04 2007-06-14 주식회사 대덕시스템 System for monitoring partial discharge and inter layer short of high voltage circulator by on line
KR100728761B1 (en) * 2006-12-04 2007-06-14 주식회사 대덕시스템 Method for monitoring partial discharge and inter layer short of high voltage circulator
KR100763613B1 (en) * 2007-01-31 2007-10-04 주식회사 대덕시스템 Method for analyzing automatically inter layer short of rotator in high voltage circulator
KR100905971B1 (en) * 2007-08-09 2009-07-06 한국전력공사 System and method for on-Line diagnostic of Generator-Motor
KR100933197B1 (en) * 2007-12-17 2009-12-22 한국전기연구원 System and method for monitoring transient stability using localized pager information
KR101019574B1 (en) * 2008-12-04 2011-03-08 한전케이피에스 주식회사 Equipment for monitoring rotor clearance of generator
KR101140613B1 (en) * 2010-04-05 2012-05-02 한국전기연구원 On-site fault diagnosis method of motor
KR101035497B1 (en) * 2010-08-17 2011-05-27 주식회사 대덕시스템 Method for total monitering on-line health of the generator
CN105699839A (en) * 2016-01-28 2016-06-22 云南电网有限责任公司电力科学研究院 A voltage transformer winding working state detection method and system
CN105699839B (en) * 2016-01-28 2018-09-11 云南电网有限责任公司电力科学研究院 A kind of transformer winding working state detecting method and system

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