KR100995989B1 - A measuring device for sf6 gas of the switch on the ground - Google Patents

A measuring device for sf6 gas of the switch on the ground Download PDF

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Publication number
KR100995989B1
KR100995989B1 KR1020100059416A KR20100059416A KR100995989B1 KR 100995989 B1 KR100995989 B1 KR 100995989B1 KR 1020100059416 A KR1020100059416 A KR 1020100059416A KR 20100059416 A KR20100059416 A KR 20100059416A KR 100995989 B1 KR100995989 B1 KR 100995989B1
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KR
South Korea
Prior art keywords
insulation gas
unit
ground switch
gas
insulation
Prior art date
Application number
KR1020100059416A
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Korean (ko)
Inventor
최춘식
Original Assignee
대보전력기술 주식회사
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Priority to KR1020100059416A priority Critical patent/KR100995989B1/en
Application granted granted Critical
Publication of KR100995989B1 publication Critical patent/KR100995989B1/en

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    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/18—Status alarms
    • G08B21/182—Level alarms, e.g. alarms responsive to variables exceeding a threshold
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
    • H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
    • H02B13/035—Gas-insulated switchgear
    • H02B13/065—Means for detecting or reacting to mechanical or electrical defects
    • H02B13/0655—Means for detecting or reacting to mechanical or electrical defects through monitoring changes of gas properties
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2229/00—Manufacturing
    • H01H2229/062—Maintenance or repair facilities
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2231/00—Applications
    • H01H2231/032—Remote control
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2300/00—Orthogonal indexing scheme relating to electric switches, relays, selectors or emergency protective devices covered by H01H
    • H01H2300/056—Tools for actuating a switch
    • H01H2300/058—Tools for actuating a switch using apparatus with a spring motor or a snap-acting mechanism for actuating any one of a number of circuit breakers

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Gas-Insulated Switchgears (AREA)

Abstract

PURPOSE: An insulation gas checking device of a ground switch is provided to easily repair and maintain the ground switch by displaying the abnormality of the insulation gas through a display unit. CONSTITUTION: A measuring unit(10) measures the state of insulation gas. An abnormality determining unit(20) determines the abnormality of the insulation gas based on the measured result of the measuring unit. A display unit(30) displays the determined result of the abnormality determining unit. A wireless communication unit(41) includes a transmitter and a receiver. The transmitter transmits the state information of the insulation gas. The receiver receives the control command of the central control center. A controller(40) processes the control command of the central control center. An insulation gas tank(50) controls the insulation gas supply by the control of the controller.

Description

A measuring device for SF6 gas of the switch on the ground}

The present invention relates to a device for checking the insulation gas of the ground switch, and more particularly, the state of the insulating gas filled in the ground switch is to be automatically checked in real time, when the abnormal phenomenon is measured while telling the contents of the abnormal phenomenon The present invention relates to an insulation gas check device for a ground switch, wherein the ground switch can be safely and conveniently managed by remote control.

In general, the power supplied to the consumer side in the substation is usually boosted to about 22,000 ~ 26,000Ｖ, and in large cities, power cables are buried underground in consideration of the beauty of the city.

In this case, in order to protect the power system, the electric power company installs and uses a ground switch that can control the power supply to the ground or the outside of the sidewalk.Insulation gas is accumulated inside the ground switch. Also known as sulfur fluoride (SF6) gas (hereinafter referred to as "insulation gas"), it has excellent physical, chemical, and electrical properties, excellent insulation strength (about 3QQ / 1 atm of air), and excellent arc extinguishing capacity. Suitable.

When the gas is poor in gastightness, the gas is corrosive, or when moisture is contained in the gas, which in turn corrodes the insulation or metal, it insulates insulation and degrades the performance of the insulation. You can't block.

Therefore, the maximum pressure, moisture content, refrigerant temperature, and sulfurous acid gas content of the insulating gas should be periodically checked. For this purpose, the internal pressure measurement of the switch, the moisture content, the refrigerant temperature, and the sulfurous acid gas content are determined through the respective mechanisms. Not only does it take a lot of time and manpower because of the measurement check, but it also causes various problems in that the insulation gas cannot be measured and checked effectively.

In order to solve the above problems of the ground switch, Korean Unexamined Patent Publication No. 1999-64380 (hereinafter referred to as Prior Art 1) and Japanese Laid-Open Patent Publication No. 14-027623 (hereinafter referred to as Prior Art 2) are devised. It has been.

However, prior art as described above, means for measuring the above items related to the measurement of the insulating gas (the measuring means is represented in the prior material 1, but for the present invention gas pressure detector, decomposition gas detector, temperature detector of the prior material 2 The measured data are stored in the data storing means, and the processing unit continuously reads and processes the accumulated data, and then accumulates the processing result processed by the processing unit. It is only characterized by issuing an alarm through the alarm means when it is stored in the means, displayed on the display means, and when it is determined that an abnormal value higher than the reference value stored in the processing portion is detected.

Accordingly, when an outlier is measured in any one of the above items, and an alarm is triggered, the technician goes directly to the ground switchgear, investigates the cause of the occurrence of the abnormality, and repairs the cause of the occurrence of the abnormality. The same system has a problem that it is difficult to immediately respond when the alarm means is issued at night, as well as the immediate response is difficult when the corresponding ground switch is far from the alarm means.

In addition, when the ground gas switch is filled with insulation gas as described above, if a problem occurs in the insulation gas, the countermeasures against the conventional problems are more urgent in view of the fact that the damage is very large unless immediate and appropriate measures are taken. You can do it.

The present invention has been made to solve the above problems,

Insulation gas of the ground switch comprising a measuring means for measuring the state of the insulating gas, an abnormality determining unit for determining whether the measured value measured by the measuring means is abnormal, and a display unit for displaying the contents when the abnormality occurs. A wireless communication unit for remotely transmitting the contents of the abnormal phenomenon expressed through the display unit and receiving a control command for the contents, a control unit connected to the wireless communication unit and controlled according to the control command; Forming an insulation gas tank connected to the control unit, by controlling the action on the insulation gas abnormality inside the ground switch remotely, so that the ground switch can be safely and conveniently managed, the insulation gas check device of the ground switch An object of the present invention to provide a.

Hereinafter, to solve the present invention to achieve the above object.

The present invention is formed on one side of the ground switch, measuring means for measuring the state of the insulating gas; An abnormality determining unit connected to the measuring unit to determine whether the measured value is abnormal; In the insulation gas check device of the ground switch comprising a display unit to display the contents when the abnormal phenomenon is measured in connection with the abnormality determination unit, a transmitter for remotely transmitting the insulation gas state measurement information expressed through the display unit; A wireless communication unit including a receiving unit for receiving a control command for the transmitted insulation gas state measurement information; A control unit connected to the wireless communication unit to process the received control command; An insulated gas tank connected to the control unit to control the insulated gas supply by the control unit; Characterized in that the insulating gas check device of the ground switch comprising a.

In addition, the control unit of the present invention, the central operation processing unit input the insulation gas reference value information according to the insulation gas state measurement information, the feedback circuit for controlling the insulation gas tank so that the measured insulation gas state measurement information meets the insulation gas reference value Characterized in that the insulating gas check device of the ground switch comprising a.

In addition, the ground switch of the present invention, one side end of the tube tube is fastened by using a connection port on one side thereof, the measuring means is connected to the side of the tube tube, the other end of the tube tube is formed with a flow regulator It is characterized by the insulation gas check device of the ground switch.

In addition, one side of the tube tube of the present invention is characterized in that the insulating gas check device of the ground switch is connected to the collecting pipe valve collecting pipe for collecting the insulating gas extracted from the ground switch separately.

The present invention configured as described above can be expected the following effects.

First, in the ground switch that maintains the flow of electricity safely through the insulating gas, the state of the insulating gas and its internal state to be measured in real time, if the abnormality occurs by the measuring means to display the contents through the display unit However, by enabling the immediate action according to the displayed content through the remote control, there is an effect that can effectively maintain and manage the ground switch.

In particular, in the case of a ground switch using an insulating gas that has a high possibility of a large accident when the response to the accident is inadequate or delayed compared to other insulated ground switches, a conventional technology that displays only when an abnormal phenomenon occurs inside. Compared to the conventional method, it is possible to immediately measure the abnormality of the insulating gas through remote control, and if the technician is difficult or delayed, the degree of damage can be significantly reduced as compared to the conventional method. Considering the high reconstruction cost of the ground switch using the above, the economic effect of the insulated gas tank set as the corresponding device will be further increased.

Second, by real-time measurement of the internal abnormality and its contents can be transmitted remotely and the control command can be remotely controlled according to the ground switch itself, to check and repair the ground switch as compared to the conventional configuration. There is an effect that can significantly reduce the cost spent on.

1 is a check and response system diagram of a ground switch according to the present invention

On the basis of the accompanying drawings will be described in more detail the present invention for presenting the configuration and effect as described above in more detail.

As shown in FIG. 1, the present invention is provided on one side of the ground switch 100 and includes: measuring means 10 for measuring a state of an insulating gas; An abnormality determining unit 20 connected to the measuring unit 10 to determine whether the measured value is abnormal; A display unit 30 connected to the abnormality determining unit 20 to display the contents when the abnormal phenomenon is measured; The wireless communication unit 41 includes a transmitter 41a for remotely transmitting the insulation gas state measurement information displayed through the display unit 30 and a receiver 41b for receiving a control command for the transmitted insulation gas state measurement information. )Wow; A control unit 40 connected to the wireless communication unit 41 and processing the received control command; An insulation gas tank 50 connected to the control unit 40 to control the insulation gas supply by the control unit 40; .

Above, the measuring means 10, the gas pressure measuring unit 10a for measuring the pressure of the insulating gas filled in the ground switch 100, the moisture content measuring unit 10b for measuring the moisture contained in the insulating gas, insulation It consists of a gas temperature measuring part 10c which measures the temperature of gas, and the sulfurous acid gas concentration measuring part 10d which measures the density | concentration of the sulfurous acid gas contained in insulation gas.

In addition, in configuring the measuring means 10 for measuring the state of the insulating gas, any item can be formed as long as it is not limited to the above item and the state of the insulating gas can be known, and a valve can be formed as necessary. It is also possible to control whether the item is measured.

In addition, the abnormality determination unit 30 is connected to the measurement means 10 as a configuration for determining whether the measured value for each measurement item measured by the measurement means 10 meets the setting criteria, the corresponding item In order to determine whether or not, the reference value information for each item indicating the state of the insulating gas should be input.

When the abnormality is detected by the abnormality determination unit 20, the display unit 30 is to display the contents of the corresponding item, and may display the contents of the abnormality on one side of the ground switch 100. It should be provided with a liquid crystal plate.

In addition, the display of the information on the abnormal phenomenon can be installed individually in each ground switch 100, as well as remotely to the central control center that collectively manages the above-mentioned information on the above-mentioned abnormal phenomenon numerous ground switchgear (100) It is also possible to configure to transmit.

At this time, the insulation gas state measurement information displayed on the display unit 30 is transmitted remotely through the transmission unit 41a of the wireless communication unit 41, and thus the central control center receiving the insulation gas state measurement information is insulated. The control command according to the gas measurement information is given, and the wireless communication unit 41 received through the receiving unit 41b transmits the control command to the control unit 40.

The control unit 40 receiving the control command from the wireless communication unit 41 is a configuration for processing a control command for responding to an abnormal phenomenon caused by the insulation gas filled in the ground switch 100, one side of the Is connected to the receiver 41b of the wireless communication unit 41, and the other side has a structure that is connected to the insulating gas tank 50, when the control command is input with the information on the abnormal phenomenon through the wireless communication unit 41 In accordance with this, the insulation gas tank 50 is controlled to supply the new insulation gas to the ground switch properly.

At this time, the control unit 40, the central operation processing unit 40a to which the insulation gas reference value information according to the measurement information provided through the wireless communication unit 41 is input, and the insulation gas state measurement information to the insulation gas reference value. It is configured to include a feedback circuit 40b for controlling the insulation gas tank 50 so that the measurement information to meet the reference value, so that the corresponding command according to the situation through the central processing unit 40a according to the received control command Will be able to get down to the insulating gas tank (50).

In addition, since the feedback circuit 40b is built in the control unit 40, the control unit 40 does not control the insulation gas tank 50 when the measurement information satisfies the input reference value. However, the control unit 40 satisfies the reference value. The insulating gas tank 50 is controlled until it is.

For example, when the gas pressure measured by the gas pressure measuring unit 10a measuring the pressure of the insulating gas among the measuring means 10 satisfies the information on the gas pressure reference value input to the abnormality determination unit 20, the display unit ( There is no indication in 30).

However, when the gas pressure measured by the gas pressure measuring unit 10a does not reach the gas pressure reference value input to the abnormality determining unit 20, the display unit 30 has an insulation gas filled in the ground switch 100 that does not meet the reference value. The control unit 40 is connected to the wireless communication unit 41 and receives a control command according to the contents to give the insulation gas tank 50 a command to control the supply of the insulation gas.

At this time, the measuring means 10 and the abnormality determination unit 20 determines whether the reference value is satisfied while measuring the gas pressure in real time even while supplying the insulating gas into the ground switch 100, and the information thereof. By remote transmission of the control unit 40 is to control the insulating gas tank 50 until the gas pressure is met the reference value.

In addition, when it is determined that the gas pressure is satisfied through the measuring means 10 and the abnormality determination unit 20 that provide information about the gas pressure in real time to the controller 40, the controller 40 may insulate the gas tank 50. ) Is ordered to stop the supply of insulating gas.

At this time, it will be apparent that the gas pressure of the insulating gas tank 50 should be higher than the reference gas pressure to be filled with the insulating gas in the ground switch 100, the insulating gas tank so that the value of the insulating gas gas pressure can be easily understood The gas pressure display device 50 may be additionally provided.

In addition, when moisture is contained in the insulation gas, a problem occurs that the components inside the ground switch 100 are corroded due to the moisture. In this case, the insulation gas of the insulation gas tank 50 may be removed. It is also possible to include a configuration to supply, and even if the temperature of the insulating gas is higher or lower than necessary, it may also be configured to include the above configuration.

In addition, in the detailed description of the present invention, as the means for managing the insulating gas in a good state with respect to the insulating gas state measurement information, it is set to the insulating gas tank 50, when the gas pressure of the insulating gas is low, the insulating gas tank ( Although the configuration for supplying the insulation gas through 50) has been described as an example, any configuration may be possible in addition to the configuration for solving the abnormal phenomenon of the insulation gas.

In addition, the measuring means 10 for measuring the state of the insulating gas and the abnormality determining unit 20, the display unit 30, the control unit 40, the wireless communication unit 41, the insulating gas tank for determining whether the measurement value is abnormal or not. It is also possible to form 50 into one integrated module.

The insulation gas state measurement information transmitted through the wireless communication unit 41 as described above may be any means capable of wireless communication so as to enable a maneuverable action. As a specific example, a portable communication terminal, a walkie talkie, or the like may be used. The insulation gas state measurement information may be uploaded to the Internet, so that the insulation gas state measurement information may be confirmed in real time.

Further, as a means for issuing a control command for the insulation gas state measurement information to be transmitted and received as described above, a computer, a portable personal communication terminal, etc. capable of wireless communication may be possible.

On the other hand, if the structure of the present invention having the technical spirit as described above will be described in detail to enable the embodiment, the present invention is connected to the tube tube 60 on one side of the portion filled with the insulating gas in the ground switch 100 It is formed so as to be fastened to, the side of the tube 60, gas pressure measuring unit 10a, water content measuring unit 10b, gas temperature measuring unit 10c, sulfurous acid gas concentration measuring unit 10d, respectively The measurement units 10a, 10b, 10c, and 10d are connected to the display unit 30 through the abnormality reading unit 20.

In addition, when one side of the tube tube 60 is coupled to the collecting tube 80 having a separate collecting tube valve 80a and an abnormal phenomenon is measured in the insulating gas, an immediate response is made through the control unit 40. It is also possible to store the insulating gas measured in the abnormal phenomenon through the collecting pipe 80 in a separate device to measure separately.

In addition, by installing a flow regulator 90 on one side of the tube tube 60 as described above, it is also possible to control the discharge of the insulating gas to the outside depending on the situation.

Reference numeral 11 in the drawings is a gas pressure measuring valve formed between the tube 60 and the gas pressure measuring unit 10a, 12 is to open and close the insulating gas provided to the remaining measuring unit except the gas pressure measuring unit 10a. It is an on-off valve formed to be.

Although the present invention has been described only with the above contents, it can be understood that the present invention can be carried out in various ways without departing from the technical spirit of the present invention.

10: measuring means
10a: gas pressure measuring unit
10b: moisture content measuring unit
10c: gas temperature measuring unit
10d: sulfur dioxide concentration measurement unit
11: gas pressure measuring unit valve
12: on-off valve
20: abnormality determination unit
30: display unit
40: control unit
40a: central processing unit
40b: feedback circuit
41: wireless communication unit
41a: transmitting unit
41b: receiving unit
50: insulated gas tank
60 tube tube
70: connection port
80: collection tube
80a: collection pipe valve
90: flow regulator
100: ground switch

Claims (4)

delete It is formed on one side of the ground switch 100, measuring means for measuring the state of the insulating gas (10); An abnormality determining unit 20 connected to the measuring unit 10 to determine whether the measured value is abnormal; In the insulation gas check device of the ground switch comprising a display unit 30 to display the contents when the abnormal phenomenon is measured in connection with the abnormality determination unit 20,
The wireless communication unit includes a transmitter 41a for transmitting the insulation gas state measurement information displayed through the display unit 30 to the outside and a receiver 41b for receiving a control command for the transmitted insulation gas state measurement information. 41);
A control unit 40 connected to the wireless communication unit 41 to process the received control command;
An insulation gas tank 50 connected to the control unit 40 to control the insulation gas supply by the control unit 40;
The control unit 40 may include a central operation processor 40a in which insulation gas reference value information is input according to insulation gas state measurement information, and the insulation gas so that the insulation gas state measurement information is satisfied. Insulation gas check device of the ground switch, characterized in that comprises a feedback circuit (40b) for controlling the tank (50).
It is formed on one side of the ground switch 100, measuring means for measuring the state of the insulating gas (10); An abnormality determining unit 20 connected to the measuring unit 10 to determine whether the measured value is abnormal; In the insulation gas check device of the ground switch comprising a display unit 30 to display the contents when the abnormal phenomenon is measured in connection with the abnormality determination unit 20,
The wireless communication unit includes a transmitter 41a for transmitting the insulation gas state measurement information displayed through the display unit 30 to the outside and a receiver 41b for receiving a control command for the transmitted insulation gas state measurement information. 41);
A control unit 40 connected to the wireless communication unit 41 to process the received control command;
An insulation gas tank 50 connected to the control unit 40 to control the insulation gas supply by the control unit 40;
It is made, including, but the ground switch 100 is to be coupled to one side end of the tube tube 60 on one side by using the connector 70, the measuring means 10 on the side of the tube tube 60 Is connected, the insulation gas check device of the ground switch, characterized in that the flow controller 90 is formed at the other end of the tube tube (60).
The method of claim 3, wherein
On one side of the tube tube (60), the insulation gas check device of the ground switch, characterized in that the collection pipe (80) for separately collecting the insulation gas extracted from the ground switch (100) is connected to the collecting pipe valve (80a).
KR1020100059416A 2010-06-23 2010-06-23 A measuring device for sf6 gas of the switch on the ground KR100995989B1 (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102706510A (en) * 2012-06-18 2012-10-03 辽宁省电力有限公司沈阳供电公司 System and method for monitoring and statistically analyzing SF6 gas pressure of transformer substation
CN103235207A (en) * 2013-03-25 2013-08-07 广州供电局有限公司 Method and device for monitoring gas insulated switchgear
CN104568327A (en) * 2013-10-21 2015-04-29 国家电网公司 Novel ring main unit SF6 gas leakage on-line monitoring device
KR20160054248A (en) * 2014-11-06 2016-05-16 주식회사 건영종합전기 Insulation gas refining apparatus and method of live wire condition

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102706510A (en) * 2012-06-18 2012-10-03 辽宁省电力有限公司沈阳供电公司 System and method for monitoring and statistically analyzing SF6 gas pressure of transformer substation
CN103235207A (en) * 2013-03-25 2013-08-07 广州供电局有限公司 Method and device for monitoring gas insulated switchgear
CN104568327A (en) * 2013-10-21 2015-04-29 国家电网公司 Novel ring main unit SF6 gas leakage on-line monitoring device
KR20160054248A (en) * 2014-11-06 2016-05-16 주식회사 건영종합전기 Insulation gas refining apparatus and method of live wire condition
KR101664571B1 (en) 2014-11-06 2016-10-11 주식회사 건영종합전기 Insulation gas refining apparatus and method of live wire condition

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