KR20200119101A - Gas Insulated Switchgear Managing System and Method - Google Patents

Abstract

The present invention relates to a gas insulated switchgear (GIS) operating system and a method thereof. According to the present invention, the system comprises: a measurement unit constituting GIS to measure pressure and components of insulating gas inside at least one GIS module independently operating; a control unit determining whether the insulating gas is leaked or replaced using the measured pressure and components of the insulating gas, controlling the insulating gas to be supplied to the inside of the GIS module with regard to the GIS module determined as a leakage, returning the insulating gas inside the GIS module with regard to the GIS module determined to be replaced, and controlling the returned insulating gas to be supplied to the inside of the GIS module by liquefying and purifying the returned insulating gas; and an alarm generation unit generating an alarm under control of the control unit when the leakage or replacement of the insulating gas is determined. According to the present invention, the insulation gas pressure and components inside the GIS are used to determine whether the insulating gas is leaked or replaced, and the insulating gas is automatically supplied into the GIS, or the insulating gas inside the GIS can be replaced in accordance with a determined result.

Description

GIS operating system and method {Gas Insulated Switchgear Managing System and Method}

The present invention relates to a GIS operating system and method, and more particularly, to determine whether to leak or replace the insulation gas inside the GIS, and automatically supply the insulation gas to the GIS when the insulation gas leakage or replacement is determined, or It relates to a GIS operating system and method that can recover and replace gas.

Recently, substation facilities have become large-capacity and high-pressure in accordance with the increase in power demand, and in order to install substation facilities in factory dense areas or downtown areas around large cities, it is becoming increasingly difficult to purchase land due to the increase in land prices, and Insulation contamination by dust, noise pollution, or safety should be seriously considered.

In addition, since it is difficult to supply and demand manpower due to the advancement of industry, automation of operation, rationalization of maintenance, and enhancement of installation work are required, and small high-voltage substation facilities that can be installed in basements of buildings are required. Likewise, there is a problem that the opening/closing mechanism that insulates the conductor by the atmosphere cannot meet this demand.

In order to solve the above problems, a gas insulated switchgear (hereinafter referred to as “GIS”) in which the volume is greatly reduced by using an insulating gas has been developed.

GIS is a substation facility in which conductors and various protective devices are housed by using insulating gas with excellent insulation performance and extinguishing function as an insulating medium in a metal sealed container. Compared to the prior art, the required area can be reduced and operation reliability can be improved. .

As described above, GIS has the advantage of easy maintenance and prolonging the inspection period because insulators or contacts are installed in the insulating gas, but there is a disadvantage that it is impossible to visually inspect the internal condition and the spread range is expanded in case of failure.

In addition, there is a problem that it takes more time to recover power outages than other power facilities because there is a lack of empirical data on the characteristics of the insulating gas charged in the GIS, and it is difficult to determine a failure in case of internal insulation breakdown.

In other words, when an accident occurs, the power outage area becomes wider due to the high-capacity and high-capacity of the substation, which causes a lot of obstacles to the supply of electricity.In addition, in the case of the substation facility supplied to the factory, as well as economic losses due to recovery, There was a problem that caused enormous damage to production.

In addition, if the GIS is used for a long time, the GIS may be damaged due to cracks or deterioration of the insulating gas due to the external environment. If the insulating gas leaks to the outside and the insulating gas pressure drops below an appropriate level, the GIS There is a problem that may lead to serious accidents such as short-circuit accidents and insulation breakdown due to weakened insulation performance.

Korean Registered Patent Publication No. 10-0471360 (Registration date: 2005. 02. 01)

Therefore, the technical problem to be solved by the present invention is to determine whether to leak or replace the insulating gas using the insulating gas pressure and components inside the GIS, and automatically supply the insulating gas into the GIS according to the determined result, or It is to provide a GIS operating system and method that can replace insulating gas.

In addition, another technical problem to be solved by the present invention is to provide a GIS operating system and method capable of effectively preventing leakage of insulating gas by forming a GIS in a dual structure, and quickly identifying and coping with the leakage of insulating gas.

In addition, in addition to the objects explicitly mentioned, the present invention includes other objects that can be achieved from the configuration of the present invention described later.

The GIS operating system according to an embodiment of the present invention for solving the above technical problem comprises a measuring unit that measures the pressure and component of the insulating gas inside at least one GIS module that configures the GIS and operates independently, the measured The insulation gas pressure and components are used to determine whether to leak or replace the insulation gas, control the insulation gas to be supplied to the inside of the GIS module for the GIS module determined as the leakage, and the GIS module that is determined to be replaced. A control unit that recovers the insulating gas inside the GIS module, liquefies and purifies the recovered insulating gas, and controls it to be supplied back into the GIS module, and an alarm according to the control of the control unit when the leakage or replacement of the insulating gas is determined. It includes an alarm generator for generating.

The GIS may be formed in a dual structure to prevent leakage of the insulating gas.

The GIS may further include a GIS module blocking unit that individually seals the GIS module to double the leakage of the insulating gas.

The measuring unit may include a pressure gauge for measuring an insulating gas pressure inside the GIS module, and a leak detection sensor installed inside the GIS module blocking unit to measure the insulating gas leaked from the GIS module.

The GIS may further include a GIS blocking unit for sealing the plurality of GIS modules constituting the GIS as a whole to block leakage of the insulating gas.

The measurement unit may include a pressure gauge for measuring an insulating gas pressure inside the GIS module, and a leak detection sensor installed inside the GIS blocking unit to measure the insulating gas leaked from at least one GIS module.

When the replacement of the insulating gas is determined, the GIS operating system according to an embodiment of the present invention includes a recovery unit that recovers the insulating gas inside the GIS module under the control of the control unit, and cools and liquefies the recovered insulating gas. It may further include a liquefied portion and a purification portion for purifying the liquefied insulating gas.

The insulating gas may be sulfur hexafluoride gas (SF ₆ , Sulfur hexafluoride) or Novec gas.

On the other hand, the method of operating a GIS using a GIS operating system including at least one independently operated GIS module is a step of measuring the insulating gas pressure and components inside the GIS module by a measurement unit, and the control unit Determining whether to leak or replace the insulation gas using the measured insulation gas pressure and components, when the insulation gas leakage or replacement is determined, the alarm generator generates an alarm, and the control unit determines the leakage as the GIS For the module, the insulating gas is supplied to the inside of the GIS module, and for the GIS module determined to be replaced, the insulating gas inside the GIS module is recovered, and the recovered insulating gas is liquefied and purified to be returned to the inside of the GIS module. It includes the step of supplying.

The GIS may be formed in a dual structure to prevent leakage of the insulating gas.

The measuring step may further include measuring the insulating gas leaked from the GIS module through a leak detection sensor installed inside a GIS module blocking unit that individually seals the GIS module.

The measuring step may further include measuring the insulating gas leaked from at least one GIS module through a leak detection sensor installed inside a GIS blocking unit that completely seals the plurality of GIS modules constituting the GIS. .

The measuring step may further include measuring the pressure of the insulating gas inside the GIS module through a pressure gauge when it is measured that the insulating gas has leaked through the leak detection sensor.

The insulating gas may be sulfur hexafluoride gas (SF ₆ , Sulfur hexafluoride) or Novec gas.

As described above, according to the GIS operating system and method according to an embodiment of the present invention, the insulating gas pressure inside the GIS is measured in real time, and the insulating gas is automatically supplied into the GIS according to the measured result, so that it is always stable and continuous. There is an advantage of enabling the supply of GIS and thus minimizing the cause of failure of GIS.

In addition, the insulation gas component inside the GIS is used to determine whether to replace the insulation gas, and when the replacement is decided, the insulation gas is recovered, and the recovered insulation gas is liquefied and purified, and recycled to supply it back to the GIS. There is an advantage that it can drastically reduce spillage and, accordingly, minimize environmental pollution.

In addition, there is an advantage in that the GIS is formed in a dual structure to effectively prevent leakage of the insulating gas, and that the leakage of the insulating gas can be quickly identified and dealt with.

Meanwhile, the effects of the present invention are not limited to those described above, and other effects that can be derived from the configuration of the present invention described later are included in the effects of the present invention.

1 is a block diagram of a GIS operating system according to an embodiment of the present invention.
2 is an exemplary diagram schematically showing a dual structure of a GIS according to an embodiment of the present invention.
3 is an exemplary diagram schematically showing a dual structure of a GIS according to another embodiment of the present invention.
4 is an operation flowchart showing a GIS operation process according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those of ordinary skill in the art may easily implement the present invention.

1 shows a configuration diagram of a GIS operating system according to an embodiment of the present invention.

As shown in Fig. 1, the GIS operating system 1 includes a measurement unit 100, a control unit 200, a storage unit 300, an alarm generation unit 400, an input unit 500, a display unit 600, and recovery It is configured to include a unit 700, a liquefaction unit 800, and a purification unit 900.

GIS (50) is a device that protects the system by opening and closing a load in the transmission and substation system or by cutting off current in case of an accident such as grounding or short circuit. It is a circuit breaker in an iron or aluminum (AL) container filled with insulating gas inside. Switchgear such as (Circuit Breaker), Disconnector, or Earthing Switch, and accessories such as Current Transformer, Voltage Transformer, or Lighting Arrester can be built-in.

The GIS 50 may include at least one GIS module 52 that operates independently. Here, an insulating gas may be filled inside each GIS module 52, and sulfur hexafluoride gas (SF ₆ , Sulfur hexafluoride) or Novec gas may be used as the insulating gas.

The measurement unit 100 may measure the pressure and component of the insulating gas in the GIS module 52.

In more detail, the measurement unit 100 may include a pressure gauge 110 installed outside the GIS module 52 and capable of measuring the pressure of the insulating gas inside the GIS module 52 in real time. Since the GIS module 52 operates independently, when there are a plurality of GIS modules 52, the pressure gauge 110 may also be composed of a plurality, and leakage of insulating gas through the charging pressure measured by the pressure gauge 110 It is possible to determine whether there is.

In addition, the measurement unit 100 may include a component measurement sensor 120 for measuring an insulating gas component inside the GIS module 52. The component measurement sensor 120 may measure the purity, concentration, or moisture content of the insulating gas to determine the defective or good state of the insulating gas.

The controller 200 is a microcomputer that manages the GIS operating system 1 as a whole, and may determine whether to leak or replace the insulating gas using the insulating gas pressure and components measured by the measuring unit 100.

In more detail, the control unit 200 collects the insulating gas pressure measured in real time by the pressure gauge 110 and stores it in the storage unit 300, and the current measured insulating gas pressure and the previous stored in the storage unit 300 It is possible to determine whether or not the insulation gas leaks and the degree of leakage (leakage capacity) by comparing the insulation gas pressure or the reference pressure of. For example, when the insulating gas pressure is less than a predetermined set value, or when a certain capacity difference occurs when compared to the previous insulating gas pressure or reference pressure, the insulating gas inside the GIS module 52 is not charged and leaks. It can be determined that there is.

In addition, the controller 200 may determine whether to replace the insulating gas using the insulating gas component measured by the component measuring sensor 120.

For example, the control unit 200 determines whether all the conditions of the purity of the insulating gas are 95% or more, the concentration is less than 2 ppm, and the moisture content is less than 1000 ppm. Only when all of the above conditions are satisfied, the insulating gas Can be determined to be in a good state. In addition, when the purity is less than 95%, the concentration is 2 ppm or more, or the moisture content is 1000 ppm or more, the control unit 200 may determine that the insulation gas is in a bad state and make a replacement decision for the insulation gas.

The alarm generator 400 may generate an alarm according to the control of the controller 200 when it is determined that the insulation gas is leaked or replaced. When the leakage or replacement of the insulating gas is determined, the alarm generator 400 may display and drive a corresponding alarm signal, or may generate an alarm sound through a separate buzzer or speaker. For example, when the leakage of the insulating gas is determined, the alarm generator 400 may display the insulating gas pressure measured in real time by the pressure gauge 110 on a human machine interface (HMI) screen and output an alarm indicating the leakage. Then, the manager recognizes the leakage of the insulating gas or the situation in which replacement is necessary, and performs follow-up measures according to the situation.

The input unit 500 may be configured as a means for inputting a command for instructing the controller 200 to perform an operation desired by the administrator.

The display unit 600 may be configured as a display means capable of displaying the pressure and component of the insulating gas measured by the measurement unit 100 or a result processed by the control unit 200.

The controller 200 may control the GIS module 52 determined to be leaked so that the insulating gas is supplied into the GIS module 52.

In more detail, the control unit 200 calculates the degree of leakage (leakage capacity) by comparing the insulation gas pressure currently measured by the pressure gauge 110 with the previous insulation gas pressure or reference pressure stored in the storage unit 300, and , Insulation gas may be automatically supplied into the GIS module 52 according to the calculated leakage level. At this time, the control unit 200 determines which range is included in the leakage ranges classified in detail, and detects the supply amount of insulating gas corresponding to the determined leakage range. (52) It can be controlled to be supplied inside. The controller 200 may control an opening amount of a valve connected between the GIS module 52 and the storage tank 850 or a turn-on time of the valve in order to control the supply of insulating gas as much as the detected supply amount.

In this way, when it is determined that the pressure of the insulating gas inside the GIS module 52 has decreased due to leakage, the GIS operating system 1 automatically supplies the insulating gas to ensure optimal insulating performance. Do not affect the operation of the module 52.

When the replacement of the insulating gas is determined, the controller 200 may sequentially control the recovery unit 700, the liquefied unit 800, and the purification unit 900.

More specifically, the control unit 200 recovers the insulating gas inside the GIS module 52 through the recovery unit 700 for the GIS module 52 determined to be replaced, and the liquefied unit 800 and the purification unit 900 ) Through the liquefied and purified insulating gas recovered through the GIS module 52 can be controlled to be supplied again.

The recovery unit 700 may recover the insulating gas inside the GIS module 52 by operating the pump.

The liquefied part 800 may liquefy the recovered insulating gas by cooling it. The liquefaction unit 800 pressurizes the insulating gas supplied from the GIS module 52 by a compressor and converts it to high pressure, then lowers the temperature through a cooler to convert the insulating gas into a liquid state, and then stores it in the storage tank 850. have.

The purification unit 900 may purify the liquefied insulating gas. The purification unit 900 may remove impurities such as air or acid gas mixed during recovery or use of the insulating gas. Here, the purification unit 900 may purify the insulating gas by applying a separation membrane using a size difference between oxygen/nitrogen and SF ₆ molecules, or by applying pressure swing adsorption (PSA) using molecular size and adsorption characteristics. The purification unit 900 may be provided with an adsorption tower or separation membrane for purifying the insulating gas, a separate gas compressor to provide a gas flow driving force, and a vacuum pump for regeneration of the adsorption layer. The insulating gas purified through this process may be stored in the storage tank 850 and then supplied back to the GIS module 52 to be reused.

As described above, when the insulating gas needs to be replaced, the insulating gas is recovered, and the recovered insulating gas is liquefied and purified, and recycled to supply it back to the GIS module 52. It can be reduced, and there is an advantage of minimizing environmental pollution accordingly.

Meanwhile, the GIS 50 may be formed in a dual structure to prevent leakage of the insulating gas.

When using SF ₆ gas as an insulating gas, SF ₆ gas represents a large negative electrical effect at considerably higher temperatures than the room temperature and the room temperature, high dielectric strength by the negative electrical effect and an excellent arc cut off, i.e. the extinguishing effect. In addition, the breakdown voltage of SF ₆ gas under atmospheric pressure is about three times that of air, and has excellent thermal conductivity, and also has excellent self-healing properties after decomposition under high pressure conditions during discharge and flashover. In addition to such excellent insulating properties and thermal conductivity, it is possible to liquefy by pressure at room temperature, thereby enabling compression storage in a metal cylindrical container, thus making it easy to handle and use.

However, SF ₆ gas, along with carbon dioxide, methane, nitrogen dioxide, hydrogen fluorocarbon, and perfluorocarbon, is a representative environmental pollutant that has been designated as one of the six major global warming gases, so the use of the SF ₆ gas is also prohibited in the Kyoto Protocol of the Climate Change Convention, which entered into force in February 2005. Are regulated.

As such, SF ₆ gas has a number of advantages, but it is the material with the highest global warming influence among the six major global warming gases specified in the Kyoto Protocol, so through the confidentiality of the GIS 50 filling SF ₆ gas. Prevent leakage of insulating gas.

Novec (G3) gas is an eco-friendly gas that replaces SF ₆ gas, and has a high dielectric performance, operating temperature and a low global warming index of about 99% compared to SF ₆ gas, and is applicable to 145kV GIS, 420kV GIL and 245kV AIS transformers. Says gas.

2 shows an exemplary diagram schematically showing a dual structure of a GIS according to an embodiment of the present invention.

Referring to FIG. 2, the GIS 50 may further include GIS module blocking portions 54 (54a to 54c) that individually seal the GIS module 52 to block leakage of the insulating gas.

For example, when the GIS 50 includes a first GIS module 52a, a second GIS module 52b, and a third GIS module 52c, the GIS 50 surrounds the first GIS module 52a. The first GIS module blocking part 54a in the form of a shield, the second GIS module blocking part 54b in the form of a shield surrounding the second GIS module 52b, and the first in the form of a shield surrounding the third GIS module 52c. It may further include a 3 GIS module blocking unit (54c). And a first pressure gauge 110a on the outside of the first GIS module 52a, a second pressure gauge 110b on the outside of the second GIS module 52b, and a third pressure on the outside of the third GIS module 52c. Gauges 110c are respectively installed to measure the pressure of the insulating gas inside the first GIS module 52a, the second GIS module 52b, and the third GIS module 52c.

In addition, a first leakage detection sensor 130a is installed inside the first GIS module blocking unit 54a, and a second leakage detection sensor 130b is installed inside the second GIS module blocking unit 54b. 3 A third leak detection sensor 130c is installed inside the GIS module blocking part 54c to measure whether insulating gas leaks from the first to third GIS modules 52a, 52b, and 52c. .

In this way, the leakage of the insulating gas from the GIS module 52 to the outside by using the GIS module blocking unit 54 can be double-blocked, and a leakage detection sensor 130 installed inside the GIS module blocking unit 54 When the leakage of the insulating gas is detected from the GIS module 52 by checking whether there is a leakage of the insulating gas through ), an alarm may be generated through the alarm generator 400 to notify the administrator. In addition, for the GIS module 52 in which the leakage is detected, the insulation gas pressure is measured through the corresponding pressure gauge 110 to determine how much insulation gas has leaked, and the leakage capacity can be determined. It can be supplied automatically or reinforced by identifying leaked areas.

3 is an exemplary diagram schematically showing a dual structure of a GIS according to another embodiment of the present invention.

Referring to FIG. 3, the GIS 50 may further include a GIS blocking unit 56 that doubles the leakage of the insulating gas by sealing the plurality of GIS modules 52 constituting the GIS 50 as a whole. have.

For example, when the GIS 50 includes a first GIS module 52a, a second GIS module 52b, and a third GIS module 52c, the GIS 50 is a first GIS module 52a and a second GIS module 52a. A GIS blocking unit 56 in the form of a protective film surrounding the entire GIS module 52b and the third GIS module 52c may be further included. And a first pressure gauge 110a on the outside of the first GIS module 52a, a second pressure gauge 110b on the outside of the second GIS module 52b, and a third pressure on the outside of the third GIS module 52c. Gauges 110c are respectively installed to measure the pressure of the insulating gas inside the first GIS module 52a, the second GIS module 52b, and the third GIS module 52c.

In addition, a leak detection sensor 130 for measuring the insulating gas leaked from at least one GIS module 52a, 52b, 52c may be installed inside the GIS blocking unit 56.

When the leakage of the insulating gas is detected through the leakage detection sensor 130, the control unit 200 may generate an alarm through the alarm generator 400 to notify the administrator, and the first to third pressure gauges 110a and 110b ) Based on the pressure measurement result of (110c), it is possible to determine in which GIS module the leakage of the insulating gas has occurred, and to determine the degree of leakage of the insulating gas and the leakage capacity. In addition, the control unit 200 automatically supplies the insulating gas according to the leaked capacity or detects and reinforces the leaked portion.

Hereinafter, a method of operating a GIS according to an embodiment of the present invention will be described.

4 is a flowchart illustrating an operation process of a GIS according to an embodiment of the present invention.

As shown in Figure 4, the measuring unit may measure the pressure and components of the insulating gas inside the GIS module (S400).

In more detail, the measuring unit may include a pressure gauge installed outside the GIS module to measure the pressure of the insulating gas inside the GIS module in real time. Since the GIS module operates independently, when there are multiple GIS modules, a plurality of pressure gauges may also be configured, and it is possible to determine whether there is leakage of insulating gas through the charging pressure measured by the pressure gauge.

In addition, the measuring unit may include a component measuring sensor for measuring an insulating gas component inside the GIS module. The component measurement sensor may measure the purity, concentration, or moisture content of the insulating gas to determine the defective or good state of the insulating gas.

Next, the control unit may determine whether to leak or replace the insulating gas using the measured insulating gas pressure and component (S410).

In more detail, the control unit collects the insulating gas pressure measured in real time from the pressure gauge and stores it in the storage unit, and compares the currently measured insulating gas pressure with the previous insulating gas pressure or reference pressure stored in the storage unit to It is possible to determine whether or not to leak and the degree of leakage (leakage capacity). For example, the control unit may determine that there is a leakage due to insufficient filling of the insulating gas inside the GIS module when the insulating gas pressure is less than a predetermined value or if a certain capacity difference occurs when compared with the previous insulating gas pressure or reference pressure. have.

In addition, the controller may determine whether to replace the insulating gas using the insulating gas component measured by the component measuring sensor.

For example, the control unit determines whether all the conditions of the purity of the insulating gas are 95% or more, the concentration is less than 2 ppm, and the moisture content is less than 1000 ppm. Only when all of the above conditions are satisfied, the insulating gas is in good condition. It can be determined to be. In addition, when the purity is less than 95%, the concentration is 2 ppm or more, or the moisture content is 1000 ppm or more, the control unit 200 may determine that the insulation gas is in a bad state and make a replacement decision for the insulation gas.

If leakage or replacement of the insulating gas is determined in step 410 (S410-Y), the alarm generator may generate an alarm (S420).

When the leakage or replacement of the insulating gas is determined, an alarm can be generated under the control of the controller. When the leakage or replacement of the insulating gas is determined, the alarm generator may display and drive a corresponding alarm signal, or may generate an alarm sound through a separate buzzer or speaker. For example, when the leakage of the insulating gas is determined, the alarm generator may display an insulating gas pressure measured in real time by the pressure gauge 110 on a human machine interface (HMI) screen and output an alarm notifying the leakage. Then, the manager recognizes the leakage of the insulating gas or the situation in which replacement is necessary, and performs follow-up measures according to the situation.

Next, the control unit may supply insulating gas into the GIS module for the GIS module determined to be leakage (S430).

More specifically, the control unit calculates the degree of leakage (leakage capacity) by comparing the insulation gas pressure currently measured by the pressure gauge with the previous insulation gas pressure or reference pressure stored in the storage unit, and calculates the leakage level according to the calculated leakage level. Insulation gas can be automatically supplied to the inside. At this time, the control unit determines which range of the leakage ranges that the calculated leakage level is included in the detailed leakage range, detects the supply amount of insulating gas corresponding to the determined leakage range, and supplies the insulating gas as much as the detected supply amount into the GIS module. It can be controlled as much as possible. The control unit may control an opening amount of a valve connected between the GIS module and the storage tank or a turn-on time of the valve in order to control the supply of the insulating gas as much as the detected supply amount.

In this way, when it is determined that the pressure of the insulating gas inside the GIS module 52 has decreased due to leakage, the GIS operating system 1 automatically supplies the insulating gas to ensure optimal insulating performance. Do not affect the operation of the module 52.

In addition, for the GIS module determined to be replaced, the insulating gas inside the GIS module may be recovered, and the recovered insulating gas may be liquefied and purified, and then supplied back into the GIS module (S440).

More specifically, the control unit controls the GIS module to be replaced by recovering the insulating gas inside the GIS module through the recovery unit, liquefying and purifying the recovered insulating gas through the liquefaction unit and the purification unit, and supplying it back into the GIS module. can do.

Meanwhile, the GIS may further include a GIS module blocking unit that double-blocks leakage of insulating gas by individually sealing the GIS module, and a leakage detection sensor installed inside the GIS module blocking unit.

Using this GIS module blocking part, it is possible to double-block the leakage of insulating gas from the GIS module to the outside, and through a leak detection sensor installed inside the GIS module blocking part, the presence or absence of leakage of the insulating gas is checked, and leakage is detected. For GIS modules, by measuring the insulating gas pressure through the corresponding pressure gauge, the leakage capacity can be determined to what extent the insulating gas has leaked, and according to the determined leakage capacity, the insulating gas is automatically supplied or the leaked part is identified and reinforced. You can do what you do.

In addition, the GIS further includes a GIS blocking unit that doubles the leakage of insulating gas by sealing a plurality of GIS modules as a whole, and a leak detection sensor installed inside the GIS blocking unit to measure the leakage of insulating gas from at least one GIS module. Can be included.

In this way, when the leakage of the insulating gas is detected through the leakage detection sensor, it is possible to determine which GIS module has the leakage of the insulating gas based on the pressure measurement results of the first to third pressure gauges, and to what extent the insulating gas leaks. It will be possible to determine the leakage capacity. In addition, depending on the leaked capacity, the insulation gas is automatically supplied or the leaked part is identified and reinforced.

An embodiment of the present invention includes a computer-readable medium including program instructions for performing operations implemented by various computers. This medium records a program for executing the GIS operation method described above. This medium may contain program instructions, data files, data structures, etc. alone or in combination. Examples of such media include hard disks, magnetic media such as floppy disks and magnetic tapes, optical recording media such as CDs and DVDs, floptical disks and magnetic-optical media, program commands such as ROM, RAM, flash memory, etc. Hardware devices configured to store and perform. Examples of the program instructions include not only machine language codes such as those produced by a compiler, but also high-level language codes that can be executed by a computer using an interpreter or the like.

Although the preferred embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements by those skilled in the art using the basic concept of the present invention defined in the following claims are also present. It belongs to the scope of rights of

1: GIS operating system
100: measurement unit 200: control unit
300: storage unit 400: alarm generation unit
500: input unit 600: display unit
700: recovery unit 800: liquefaction unit
900: refining unit

Claims (14)

A measuring unit for measuring the pressure and component of the insulating gas inside at least one GIS module constituting the GIS and operating independently;
The measured insulation gas pressure and components are used to determine whether to leak or replace the insulation gas, and for the GIS module determined as the leakage, control so that the insulation gas is supplied inside the GIS module, and the GIS module determined by the replacement Regarding, the control unit recovers the insulating gas inside the GIS module, liquefies and purifies the recovered insulating gas, and controls it to be supplied back into the GIS module; And
An alarm generator that generates an alarm according to the control of the controller when the leakage or replacement of the insulating gas is determined
GIS operating system comprising a. In claim 1,
The GIS is,
GIS operating system formed in a dual structure to prevent leakage of the insulating gas. In claim 2,
The GIS is,
A GIS operation system further comprising a GIS module blocking unit that individually seals the GIS module to block leakage of the insulating gas. In claim 3,
The measuring unit,
A pressure gauge for measuring an insulating gas pressure inside the GIS module; And
A GIS operating system including a leak detection sensor installed inside the GIS module blocking unit to measure the insulating gas leaked from the GIS module. In claim 2,
The GIS is,
A GIS operating system further comprising a GIS blocking unit that doubles the leakage of the insulating gas by sealing the plurality of GIS modules constituting the GIS as a whole. In claim 5,
The measuring unit,
A pressure gauge for measuring an insulating gas pressure inside the GIS module; And
GIS operating system including a leak detection sensor installed inside the GIS blocking unit to measure the insulating gas leaked from at least one GIS module. In claim 1,
A recovery unit for recovering the insulating gas inside the GIS module under the control of the control unit when the replacement of the insulating gas is determined;
A liquefaction unit for cooling the recovered insulating gas to liquefy; And
GIS operating system further comprising a purification unit for purifying the liquefied insulating gas. In claim 1,
The insulating gas,
GIS operating system with sulfur hexafluoride gas (SF ₆ , Sulfur hexafluoride) or Novec gas. In a method of operating a GIS using a GIS operating system including at least one independently operating GIS module,
Measuring, by a measuring unit, an insulating gas pressure and a component inside the GIS module;
Determining, by a control unit, whether to leak or replace the insulating gas using the measured insulating gas pressure and components;
Generating an alarm when the leakage or replacement of the insulating gas is determined; And
The control unit supplies the insulating gas into the GIS module for the GIS module determined as the leakage, and recovers the insulating gas inside the GIS module for the GIS module determined to be replaced, and liquefies the recovered insulating gas. Purifying and resupplying the GIS module
GIS operation method, including. In claim 9,
The GIS is,
GIS operation method formed in a dual structure to prevent leakage of the insulating gas. In claim 10,
The measuring step,
GIS operating method further comprising the step of measuring the insulating gas leaked from the GIS module through a leak detection sensor installed inside the GIS module blocking unit individually sealing the GIS module. In claim 10,
The measuring step,
GIS operating method further comprising the step of measuring the insulating gas leaked from at least one GIS module through a leak detection sensor installed inside the GIS blocking unit that completely seals the plurality of GIS modules constituting the GIS. In claim 11 or 12,
The measuring step,
When it is measured that the insulating gas has leaked through the leak detection sensor, measuring the pressure of the insulating gas inside the GIS module through a pressure gauge. In claim 9,
The insulating gas,
GIS operation method of sulfur hexafluoride gas (SF ₆ , Sulfur hexafluoride) or Novec gas.

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