KR20230077368A - Apparatus and system for detecting partial discharge of gas insulated switchgear - Google Patents

Abstract

A GIS partial discharge detection apparatus according to an embodiment of the present disclosure includes a sensor unit disposed on an inner surface of the GIS and a controller that controls the sensor unit, the sensor unit includes an infrared sensor and a visible ray sensor, and the controller includes a sensor It may include a power supply unit for supplying power to the unit, a memory for storing information sensed by the sensor unit, and a processor for processing the sensed information.
A GIS partial discharge detection system according to an embodiment of the present disclosure includes a GIS partial discharge detection device and a management server disposed in the GIS, and the GIS partial discharge detection device includes a sensor disposed on an inner surface of the GIS to sense the partial discharge. and a control unit that supplies power to the unit and the sensor unit, stores, processes, and transmits information sensed by the sensor unit to a management server, and the management server receives the information sensed from the GIS partial discharge detection device and receives the information sensed from the GIS partial discharge detection device. Discharge is monitored, and the sensor unit may include an infrared sensor and a visible ray sensor.

Description

GIS partial discharge detection device and system {APPARATUS AND SYSTEM FOR DETECTING PARTIAL DISCHARGE OF GAS INSULATED SWITCHGEAR}

The present disclosure relates to an apparatus and system for detecting partial discharge in a GIS.

Partial discharge accounts for the largest portion of GIS failures. Partial discharge is a local discharge phenomenon that occurs in a place other than between electrodes, which deteriorates the internal insulation performance of GIS and leads to internal failure. A conventional method for detecting partial discharge was a method of inserting a UHF sensor into an internal inspection window of a GIS or attaching a UHF sensor to a GIS component such as a spacer. In order to measure partial discharge inside the GIS, a method of installing and monitoring an on-line diagnosis system or a method of diagnosing partial discharge periodically by a preventive diagnosis agent using a portable laptop computer and a partial discharge measuring device is used.

In addition, when partial discharge occurs due to internal deterioration of the GIS, various types of by-products are generated, so it is possible to diagnose the presence or absence of internal partial discharge using equipment capable of diagnosing by the characteristics of the by-products. Partial discharge diagnosis methods include an electrical detection method, an ultrasonic detection method, a chemical detection method, and an electromagnetic wave detection method according to the characteristics of each side product. Currently, GIS partial discharge diagnosis using the electromagnetic wave detection method is being used.

An object of the present disclosure is to disclose an apparatus and system for detecting a partial discharge of a GIS in which a complex sensor is disposed inside the GIS.

A GIS partial discharge detection apparatus according to an embodiment of the present disclosure includes a sensor unit disposed on an inner surface of the GIS and a controller that controls the sensor unit, the sensor unit includes an infrared sensor and a visible ray sensor, and the controller includes a sensor It may include a power supply unit for supplying power to the unit, a memory for storing information sensed by the sensor unit, and a processor for processing the sensed information.

A GIS partial discharge detection system according to an embodiment of the present disclosure includes a GIS partial discharge detection device and a management server disposed in the GIS, and the GIS partial discharge detection device includes a sensor disposed on an inner surface of the GIS to sense the partial discharge. and a control unit that supplies power to the unit and the sensor unit, stores, processes, and transmits information sensed by the sensor unit to a management server, and the management server receives the information sensed from the GIS partial discharge detection device and receives the information sensed from the GIS partial discharge detection device. Discharge is monitored, and the sensor unit may include an infrared sensor and a visible ray sensor.

According to various embodiments of the present disclosure, since various elements of the partial discharge are detected in various ways, the GIS partial discharge can be easily measured.

In addition, according to various embodiments of the present disclosure, since the detection device disposed in the GIS measures partial discharge in real time and transmits sensing information wirelessly, partial discharge inspection is possible without a site visit by diagnostic personnel.

In addition, according to various embodiments of the present disclosure, since the partial discharge is measured by a plurality of sensors, it is possible to accurately detect the location where the partial discharge occurs inside the GIS.

Furthermore, it is possible to save data and resource power consumed for GIS partial discharge real-time diagnosis by using ROI (Region Of Interest) in image processing.

1 is a schematic diagram illustrating a system according to one embodiment of the present disclosure.
2 is a diagram showing the configuration of a device according to an embodiment of the present disclosure.
3 is a schematic diagram showing a state in which a sensor according to an embodiment of the present disclosure senses a partial discharge.
4 is a schematic diagram illustrating a state in which a plurality of sensors sense a partial discharge according to an embodiment of the present disclosure.
5 is a schematic diagram showing how a sensor processes an image using an ROI according to an embodiment of the present disclosure.
6 is a diagram showing a location where a device according to an embodiment of the present disclosure is disposed.
7 is a diagram illustrating the operation of a system according to one embodiment of the present disclosure.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. When describing with reference to the drawings, the same or corresponding components are assigned the same reference numerals, and duplicate descriptions thereof will be omitted.

In the following embodiments, terms such as first and second are used for the purpose of distinguishing one element from another element without a limiting meaning. Singular expressions include plural expressions unless the context clearly dictates otherwise. Terms such as include or have mean that features or elements described in the specification exist, and do not preclude the possibility that one or more other features or elements may be added.

In the following embodiments, when it is assumed that films, regions, components, etc. are connected, not only are the films, regions, and components directly connected, but also other films, regions, and components are interposed between the films, regions, and components. This includes cases where it is connected indirectly. In addition, when a part such as a film, region, component, etc. is said to be on or on another part, it includes not only the case directly above the other part, but also the case where another film, region, component, etc. is interposed therebetween. do.

When an embodiment is otherwise embodied, a specific process sequence may be performed differently from the described sequence. For example, two processes described in succession may be performed substantially simultaneously, or may be performed in an order reverse to the order described.

In the drawings, the size of components may be exaggerated or reduced for convenience of description. For example, the size and thickness of each component shown in the drawings are arbitrarily given for convenience of explanation, and the present invention is not necessarily limited to those shown.

In the present disclosure, the term 'sensor' may broadly refer to any means capable of detecting any physical or chemical property or phenomenon. The use, function, material, etc. are not limited by the term.

The conventional GIS partial discharge inspection is carried out when a signal that a partial discharge has occurred is received in the diagnosis system, or when a diagnostician visits regularly, analyzes the partial discharge signal, and conducts a detailed inspection through an emergency truce according to the intensity of the partial discharge. done in the way it is done. In the case of on-site inspection, it is possible to find the partial discharge failure point, but there are cases where it is difficult to find the internal failure part of the sealed GIS even through expert inspection. In addition, when inspectors measure with a pair of two people, there are many measurement objects, so the time required for partial discharge measurement is 30 minutes to 1 hour per GIS 1BAY, so securing diagnostic personnel is excessively requested. In order to improve these problems, a GIS preventive diagnosis system has been introduced and is in operation, but the investment cost for installing the diagnosis system is 750 million won per substation of 154kV, and a new problem arises.

In addition, even if the GIS partial discharge signal is weak or there is no signal, there are cases where a blackout occurs due to insulation breakdown. If a highly accurate diagnosis is not performed, it may lead to failure and primarily increase the amount of equipment damage, furthermore, damage due to power outage can occur up to Therefore, a highly accurate diagnosis of the GIS partial discharge signal is required. For this purpose, solving the partial discharge signal with specialized training on analysis and interpretation requires a great deal of time and cost. Therefore, there is a need for a method capable of easily detecting the GIS partial discharge with high accuracy and precisely detecting the occurrence location without additional professional training.

Hereinafter, a GIS partial discharge detection device and system according to various embodiments of the present disclosure are disclosed. In various embodiments of the present disclosure, a detection device and system capable of analyzing various physical effects of partial discharge are disclosed. According to various embodiments of the present disclosure, since various elements of the partial discharge are detected in various ways, the GIS partial discharge can be easily measured.

More specifically, the GIS partial discharge detection apparatus according to an embodiment includes a sensor that can look inside the GIS 10, such as a camera, to visually detect the occurrence of partial discharge. Alternatively, an infrared camera can be used to detect heat where partial discharge occurs, and an abnormal signal inside the GIS can be detected by sensing light, sound, and vibration. Furthermore, the GIS partial discharge detection apparatus according to an embodiment may receive a sensing signal and transmit it to a management server. Sensing signals can be collected to the SCADA dispatch branch through the on-site aggregation system.

First, the GIS partial discharge detection system 100 will be described with reference to FIG. 1 . 1 is a schematic diagram showing a GIS partial discharge detection system 100 according to an embodiment of the present invention. The GIS partial discharge detection system 100 according to an embodiment may include a GIS partial discharge detection device 200 and a management server 300 .

The GIS partial discharge detection device 200 may be configured in the GIS 10 . The GIS partial discharge detection apparatus 200 is configured at least partly inside the GIS 10 to sense partial discharge generated in the GIS 10 . The GIS partial discharge detection device 200 may transmit sensing information to the management server 300 . The sensing information may include information about partial discharge.

The management server 300 may receive sensing information from the GIS partial discharge detection device 200 . The sensing information may include information about partial discharge. The management server 300 can comprehensively grasp the partial discharge of the GIS 10 from a distance based on the received sensing information. The management server 300 can determine the occurrence of partial discharge in the GIS 10 in real time and manage the current status of the GIS 10 .

The configuration of the GIS partial discharge detection device 200 will be described in detail with reference to FIGS. 2 and 3 . FIG. 2 is a diagram showing the configuration of a GIS partial discharge detection device 200, and FIG. 3 is a schematic diagram showing how a sensor according to an embodiment of the present disclosure senses a partial discharge. The GIS partial discharge detection apparatus 200 according to an embodiment may include a sensor unit 210 and a control unit 220.

The sensor unit 210 according to an embodiment may detect partial discharge of the GIS 10 . The sensor unit 210 may be provided in the GIS 10. More specifically, each component of the sensor unit 210 may be disposed inside the GIS 10 or in a component of the GIS 10 . For example, some sensors of the sensor unit 210 may be disposed on a spacer. The sensor unit 210 according to an embodiment may include an infrared sensor 212, a visible ray sensor 214, a sound sensor 216, and a vibration sensor 218.

The control unit 220 according to an embodiment may control the sensor unit 210 to fully perform partial discharge sensing of the GIS. For example, the controller 220 may supply power to the sensor unit 210, store sensing information, process the sensing information, and transmit the sensing information to the outside. The controller 220 according to an embodiment may include a processor 222, a transceiver 224, a power supply 226, and a memory 228.

The control unit 220 may be preferably provided outside the GIS 10 . In one embodiment, when the controller 220 is provided outside the GIS 10, the controller 220 may be connected to a sensor of the sensor unit 210 disposed inside the GIS 10 by wire. The arrangement of the control unit 220 or the connection between the control unit 220 and the sensor unit 210 will be described in detail below with reference to FIG. 6 .

The GIS partial discharge detection apparatus 200 according to an embodiment may analyze various physical effects of partial discharge in various ways. The GIS partial discharge detection device 200 may detect heat, light, sound, vibration, and the like generated by the partial discharge. The GIS partial discharge detection device 200 may include an infrared sensor 212 and/or a visible ray sensor 214 capable of observing light and heat inside a dark GIS.

Referring to FIG. 3 , a sensor that is a component of the sensor unit 210 will be described in detail. The sensor unit 210 may detect heat, light, sound, and/or vibration of the partial discharge generated in the GIS 10 . The sensor unit 210 according to an embodiment may include an infrared sensor 212, a visible ray sensor 214, a sound sensor 216, and a vibration sensor 218.

The infrared sensor 212 may detect infrared rays or heat where partial discharge occurs. Since the partial discharge has the meaning of physically moving energy, the occurrence of the partial discharge causes a change in heat or heat distribution in the surroundings. The infrared sensor 212 may detect electromagnetic waves in the infrared region. For example, the infrared sensor 212 may be an infrared camera or a thermal imaging camera, but is not limited thereto.

The infrared sensor 212 can detect infrared rays and can measure the intensity of radiant energy by detecting energy in the form of an infrared wave, which is a type of electromagnetic wave radiated from the inside of the GIS. Furthermore, information may be generated in different colors according to the intensity and amount of infrared radiant heat. For example, the infrared sensor 212 may generate information representing red color as high energy at the center of the partial discharge and information representing blue color as low energy at a location far from the center and transmit the information to the control unit.

The visible ray sensor 214 may detect electromagnetic waves in the visible ray region where partial discharge occurs. When light such as a spark is generated in a dark space inside the GIS due to partial discharge, the visible light sensor 214 may sense the corresponding light. For example, the infrared sensor 212 may be a camera or a semiconductor camera sensor, but is not limited thereto.

The visible light sensor 214 can detect visible light and can measure the intensity of radiant energy by detecting energy in the form of a visible light wavelength, which is a type of electromagnetic wave radiated from the inside of the GIS. Furthermore, brightness information may be generated in various ways according to the intensity of visible light. For example, the visible ray sensor 214 may generate information indicating white or light gray as high energy at the center of the partial discharge, and information indicating black as low energy at a distance from the center and transmit the information to the control unit.

The infrared sensor 212 and/or the visible ray sensor 214 may control an image screen to be sensed. For example, you can zoom in/out and move up, down, left and right. Adjustment of the image screen of the infrared sensor 212 and/or the visible ray sensor 214 may be controlled by the controller 220 . When the management server 300 transmits a command for adjusting the image screen of the infrared sensor 212 and/or the visible ray sensor 214 to the GIS partial discharge detection device 200, the control unit 220 controls the infrared sensor 212 and/or the visible light sensor 214 may be controlled. Alternatively, an on-site inspector may control the controller 220 using a computing device to adjust the zoom function of the infrared sensor 212 and/or the visible ray sensor 214 .

The infrared sensor 212 and/or the visible ray sensor 214 can easily measure the partial discharge, compared to conventionally measuring the partial discharge using UHF inside and outside the GIS. When measured using UHF, specialized functions such as noise filtering are required to detect the partial discharge signal, but the infrared sensor 212 and/or the visible ray sensor 214 enables visually intuitive detection and determination. Therefore, no professional judgment is required, and the detection accuracy is high.

The sensor unit according to an embodiment may include a sound sensor 216 . The sound sensor 216 may detect the sound of partial discharge. The occurrence of a partial discharge can generate sound through the vibration of the surrounding gas or the composition of the GIS. The sound sensor 216 can detect sound as a vibration of a longitudinal wave. For example, the sound sensor 216 may be a microphone or the like, but is not limited thereto. The sound sensor 216 may sense a sound pulse and transmit it to the control unit 220 .

The sensor unit according to an embodiment may include a vibration sensor 218 . The vibration sensor 218 may detect vibration where partial discharge occurs. Here, the vibration may include various vibrations in addition to electromagnetic waves and sound. For example, the vibration sensor 218 is a known sensor and may be UHF, but is not limited thereto. The vibration sensor 218 may detect vibration of a line where partial discharge occurs or the GIS 10 .

The controller 220 according to an embodiment may control driving of the sensor unit 210 . For example, it may be a computing device capable of supplying power to the sensor unit 210, transmitting a control signal to the sensor unit 210, and receiving sensing information from the sensor unit 210. In addition, the control unit 220 may transmit the sensing information to the management server 300 or the like. The control unit 220 may be disposed adjacent to the GIS 10, and preferably may be disposed outside the GIS 10. The controller 220 according to an embodiment may include a processor 222, a transceiver 224, a power supply 226, and a memory 228.

The processor 222 may process information of the GIS partial discharge detection device 200 and control other configurations. For example, the processor 222 may be a CPU, MCU, etc., but is not limited thereto. The processor 222 may receive sensing information from the sensor unit 210 or each sensor of the sensor unit 210 through an input/output interface. Processor 222 may store sensing information in memory 228 . The processor 222 may control the transceiver 224 to transmit sensing information to an external device such as the management server 300 . Here, the sensing information may be digital and/or analog information received from the sensor unit 210, or information processed/processed based thereon. For example, the fact that the transceiver 224 transmits sensing information is not necessarily limited to transmitting the information received from the sensor unit 210 as it is.

The transceiver 224 may transmit information to an external device and receive information from the outside. For example, the transceiver 224 may transmit sensing information to the management server 300 . Also, for example, the transceiver 224 may receive device control-related information from the management server 300 . The transceiver 224 is a component for wired/wireless, preferably wireless communication, and may include a router, a modem, and the like, but is not limited thereto.

The power supply unit 226 may supply power to each component of the GIS partial discharge detection device 200 or the GIS partial discharge detection device 200 . For example, the power supply unit 226 may supply power to the sensor unit 210 so that the sensor continuously senses. In addition, the power unit 226 may supply power to the processor 222 so that the processor can control other components.

The memory 228 may store sensing information received from the sensor unit 210 . For example, memory 228 may be, but is not limited to, flash memory, MMC, HDD, and the like. When the transceiver 224 is not configured in the GIS partial discharge detection device 200 or does not operate, the sensing information is stored in the memory 228, and then the information is moved by an on-site inspector or the transceiver 224 is broken. It can be sent after repair.

With reference to FIG. 4 , partial discharge detection using a plurality of sensors will be described. 4 is a schematic diagram illustrating a state in which a plurality of sensors sense a partial discharge according to an embodiment of the present disclosure.

The infrared sensor 212 and/or the visible ray sensor 214 may be configured in plurality. For example, there are two infrared sensors 212, and they may be disposed at different locations within the GIS 10. When the two spaced apart infrared sensors 212 measure the position of the partial discharge on the plane, respectively, the location of the partial discharge can be precisely identified by combining the two pieces of measurement information.

According to one embodiment, the infrared sensor and the visible ray sensor may be spaced apart from each other inside the GIS. According to another embodiment, a plurality of infrared sensors may be disposed spaced apart inside the GIS. According to another embodiment, a plurality of visible light sensors may be spaced apart and arranged inside the GIS.

Preferably, the two infrared sensors 212 are disposed perpendicularly to each other, and a position on the xy plane and a position on the yz plane can be sensed to determine the location where the partial discharge has occurred. According to an embodiment, the infrared sensor and the visible ray sensor may be spaced apart from each other and sensed in directions perpendicular to each other. According to another embodiment, a plurality of infrared sensors may be spaced apart from each other and sensed in directions perpendicular to each other. According to another embodiment, a plurality of visible light sensors may be spaced apart from each other and sensed in directions perpendicular to each other.

When one of the spaced sensors detects a partial discharge on the sensing plane and the other sensor detects the partial discharge on the sensing plane, the location of the partial discharge in the GIS is determined by combining the two sensing information. It can be detected three-dimensionally. Here, the spaced apart sensors may be a plurality of infrared sensors 212 , a plurality of visible light sensors 214 , or an infrared sensor 212 and a visible light sensor 214 . For example, if the infrared sensor 212 detects abnormal heat on one side and the visible ray sensor 214 detects instantaneous light on one side at the same time, combining the two sensing information, It is possible to three-dimensionally determine whether a discharge has occurred. According to an embodiment, the GIS partial discharge detection apparatus 200 may use coordinates.

In the case of arranging a plurality of sensors and grasping in three dimensions, there are the following advantages. First, it is possible to detect the location of the partial discharge with high accuracy. As described above, in the case of measurement using conventional UHF, even if the occurrence of partial discharge is known, it is necessary to repeat the UHF measurement for each part and estimate the occurrence location based on the signal strength. In the case of three-dimensionally detecting partial discharge by disposing a plurality of sensors according to an embodiment of the present disclosure, it is possible to accurately detect the occurrence position of partial discharge without such inconvenience in the prior art.

Second, the area in which the occurrence of partial discharge can be detected is widened. Due to the linearity of light, an area that cannot be detected by a single visible ray sensor or an infrared ray sensor may be formed. That is, a single sensor may not be able to detect partial discharge because it is covered by the internal configuration of the GIS.

5 is a schematic diagram showing how a sensor processes an image using an ROI according to an embodiment of the present disclosure. In image processing through a sensor, a region of interest (ROI) may be used.

ROI is a method of increasing the importance of a region of interest and lowering the importance of other regions in processing image information. For example, in real-time shooting of a video, data and resource consumption can be saved and power can be saved by transmitting only the information of the region of interest in high quality and transmitting information outside the region of interest in low quality.

When the GIS partial discharge detection device 200 captures an image inside the GIS in real time through the infrared sensor 212 and/or the visible ray sensor 214, when partial discharge occurs, the corresponding portion is set as the ROI. can Here, ROI setting may be performed by a known deep learning learning method. ROI processing may be performed through the controller 220 . Accordingly, the GIS partial discharge detection apparatus 200 can economically process data in transmission and reception of image information using the ROI of the partial discharge area.

Referring to FIG. 6 , arrangement of the control unit 220 and connection between the control unit 220 and the sensor unit 210 will be described. 6 is a diagram showing a location where a device according to an embodiment of the present disclosure is disposed.

According to one embodiment, the controller 220 may be disposed outside the GIS 10 . For example, it may be disposed on an outer wall of the GIS 10 or the like. When the controller 220 is disposed outside the GIS 10, sensing information may be wirelessly transmitted to the outside.

According to one embodiment, the sensor unit 210 may be disposed inside the GIS 10 . In this case, a connection may be required between the sensor unit 210 inside the GIS 10 and the external control unit 220. Here, the connection may be a wired connection. That is, a wire connecting the inside and outside of the GIS 10 may be arranged.

When designing, arranging, and configuring the GIS 10, spacer holes or valves can be configured with wire lines connected to the inside and outside. 6 shows the GIS and the spacer and the bolt hole of the spacer. According to one embodiment, wired lines inside and outside of the GIS may be connected through the bolt holes of the spacer. Through this, the control unit 220 outside the GIS 10 may be connected to the sensor unit 210 inside the GIS 10 . Furthermore, the controller 220 may receive information sensed by the sensor through a wire. In addition, the control unit 220 may transmit sensing information to the management server using a wireless network or the like through a transceiver.

Hereinafter, an operation of detecting and monitoring a partial discharge of a GIS by a system according to an embodiment will be described with reference to FIG. 7 . 7 is a diagram illustrating the operation of a system according to one embodiment of the present disclosure.

In the case of GIS electrical equipment, it consists of an internal busbar, insulator, circuit breaker, disconnector, transformer, lightning arrestor and an enclosure that surrounds it. Deterioration is caused by various factors. There are direct factors such as ambient temperature, humidity, mechanical vibration, etc. Among them, the direct factors, such as internal partial discharge and deterioration due to thermal burns, are typical factors. In addition, phenomena generated from partial discharge are roughly divided into light, noise emission, electrical energy emission, and gas. In the conventional method, a method using an ultrasonic sensor was used because the insulation breakdown phenomenon can be prevented in advance by measuring the discharge phenomenon in the early stage. There was a disadvantage that the false diagnosis rate of deterioration detection was high. According to the present disclosure, it is possible to accurately diagnose light, heat, vibration, and noise generated by a discharge generated in a GIS by sensing them from various angles. The built-in infrared sensor and visible ray sensor transmits signals to the on-site meeting panel in real-time at all times, and when an abnormal signal occurs, the meeting panel notifies the user of this symptom with an alarm. The built-in camera function measures the temperature by the thermal image of the power facility to be measured according to the temperature sensitivity and determines whether or not partial discharge has occurred through the maximum allowable temperature method of the power facility and the three-phase temperature comparison method, and according to the comparison result or the judgment result It provides a method including the step of determining and notifying the insulation state level of the target power facility, measures the temperature by thermal image and the discharge phenomenon by electric field using a camera, and delivers the result to the on-site meeting team for diagnosis by the user. do In addition, in order to accurately identify the partial discharge phenomenon, it detects sound and vibration and transmits the signal to the on-site assembly panel.

When a partial discharge occurs, or an abnormal situation occurs, such as a network error of the GIS partial discharge detection device 200, a data communication device error, or a sensor or controller error, the management server 300 may detect it. Furthermore, it is possible to implement an alarm so that the user and HMI of the management server 300 can visually know. You can also save these logs. The HMI functions to display, store, and analyze the data transmitted from the detection device determined based on the criteria for determining abnormalities, and is configured to remotely analyze the data determined to be defective with PRPS and PRPD. The time change of the accumulated data for analysis allows the user to arbitrarily adjust and analyze, and the HMI also configures the PRPS and PRPD conversion for the measured data to be possible. The HMI may provide a function of checking, storing, and analyzing real-time data for each substation and each sensor through the GIS partial discharge detection device 200, if necessary. HMI is a web link and data storage device, and the function to check partial discharge abnormality event data and real-time data can be provided through the HMI and diagnosis unit on KEPCO operator's PC, and the HMI monitor can be installed in the operating department or switchboard. there is.

When a negative discharge occurs in a power facility, not only the relevant facility but also the adjacent substation facilities fail, resulting in a wide-area power outage, which can cause enormous damage to the power supply. Through the GIS partial discharge detection device and system according to the present disclosure, partial discharge, which is a factor in GIS failure, can be recognized in advance to prevent power outages, reduce loss costs due to GIS insulation breakdown, and prevent incidental losses of company business due to power outages. can

In order to visualize and accurately analyze the partial discharge signal, which was previously difficult to visually detect, the present invention detects elements such as vibration, light, and heat to accurately analyze the partial discharge signal. It has the advantage of being able to accurately diagnose the discharge generating area with a zoom function through a moving camera perspective, being able to measure in a short time with low installation cost, and requiring no professional skills. By adding a convenient search function desired by the user in the HMI, adjusting the camera and implementing an algorithm, anyone can use it easily without expert knowledge. In addition, by adding various functions such as waveform analysis for more precise analysis, detailed failure analysis is possible, so it is expected to make a significant contribution to the establishment of countermeasures and prevention in case of power facility failure.

Those skilled in the art to which the present invention pertains will understand that the present invention can be embodied in other specific forms without changing its technical spirit or essential features. Therefore, the embodiments described above should be understood as illustrative in all respects and not limiting. The scope of the present invention is indicated by the claims to be described later rather than the detailed description above, and all changes or modifications derived from the meaning and scope of the claims and equivalent concepts thereof are included in the scope of the present invention. should be interpreted

100: GIS partial discharge detection system
200: GIS partial discharge detection device
210: sensor unit
212, 212_a, 212_b: infrared sensor
214: visible light sensor 216: sound sensor
218: vibration sensor 220: control unit
222: processor 224: transceiver
226: power unit 228: memory
230: filter

Claims (14)

In the GIS partial discharge detection device,
A sensor unit disposed on an inner surface of the GIS and a control unit controlling the sensor unit,
The sensor unit,
Including an infrared sensor and a visible light sensor,
The control unit,
A power supply unit for supplying power to the sensor unit;
A memory for storing the information sensed by the sensor unit; and
Including a processor for processing the sensed information,
Device.
According to claim 1,
The sensor unit further comprises a sound sensor,
Device.
According to claim 2,
The sensor unit further comprises a vibration sensor,
Device.
According to claim 3,
The control unit,
Further comprising a transceiver for transmitting the sensed information to an external management server,
Device.
According to claim 4,
the processor,
Controlling a transceiver to transmit sensing information to an external management server when partial discharge sensing information is received by any one of the infrared sensor, the visible ray sensor, the sound sensor, and the vibration sensor,
Device.
According to claim 5,
The infrared sensor and the visible ray sensor are spaced apart from each other and sensed in directions perpendicular to each other.
Device.
According to claim 5,
The plurality of infrared sensors are disposed spaced apart inside the GIS and sense in directions perpendicular to each other.
Device.
According to claim 5,
The plurality of visible light sensors are disposed spaced apart inside the GIS and sense in directions perpendicular to each other.
Device.
In the GIS partial discharge detection system,
Including a GIS partial discharge detection device and a management server disposed in the GIS,
The GIS partial discharge detection device,
A sensor unit disposed on the inner surface of the GIS to sense partial discharge; and
And a control unit for supplying power to the sensor unit, storing, processing, and transmitting the information sensed by the sensor unit to a management server,
The management server,
receiving the sensed information from the GIS partial discharge detection device to monitor the partial discharge of the GIS;
The sensor unit,
Including an infrared sensor and a visible light sensor,
system.
According to claim 9,
The sensor unit further comprises a sound sensor,
Device.
According to claim 10,
The sensor unit further comprises a vibration sensor,
Device.
According to claim 11,
The infrared sensor and the visible ray sensor are spaced apart from each other and sensed in directions perpendicular to each other.
Device.
According to claim 11,
The plurality of infrared sensors are disposed spaced apart inside the GIS and sense in directions perpendicular to each other.
Device.
According to claim 11,
The plurality of visible light sensors are disposed spaced apart inside the GIS and sense in directions perpendicular to each other.
Device.

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