KR20100035498A - Portable type gas refill device for gas insulation circuit breaker of distribution line - Google Patents

Portable type gas refill device for gas insulation circuit breaker of distribution line Download PDF

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Publication number
KR20100035498A
KR20100035498A KR1020080094918A KR20080094918A KR20100035498A KR 20100035498 A KR20100035498 A KR 20100035498A KR 1020080094918 A KR1020080094918 A KR 1020080094918A KR 20080094918 A KR20080094918 A KR 20080094918A KR 20100035498 A KR20100035498 A KR 20100035498A
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South Korea
Prior art keywords
gas
pressure
circuit breaker
distribution line
portable
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KR1020080094918A
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Korean (ko)
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고영준
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이호기술단(주)
(주)에이치피엔알티
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Priority to KR1020080094918A priority Critical patent/KR20100035498A/en
Publication of KR20100035498A publication Critical patent/KR20100035498A/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/04—Arrangement or mounting of valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
    • F17C1/02—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge involving reinforcing arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0323—Valves
    • F17C2205/0332—Safety valves or pressure relief valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0382—Constructional details of valves, regulators

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)

Abstract

PURPOSE: A portable gas charging device for a gas insulation circuit breaker of a distribution line is provided to smoothly the distribution line power supply manipulation even if the manipulation is disabled due to the gas pressure degradation of a battery circuit breaker. CONSTITUTION: A portable gas charging device for a gas insulation circuit breaker of a distribution line comprises a small cylinder(100), a pressure reducer(101), a manometer(103), a multi-union joint(105) and a pipe line(106). The cylinder contains sulfur hexafluoride of high pressure liquefied gas. The pressure reducer decompresses the pressure of the high pressure gas. The gas flows in the manometer site by a first opening and closing valve(102) and flows in a battery circuit breaker by a second opening and closing valve(104). The multi-union joint connects a gas injector of the portable gas charging device and the inlet of a gas insulation circuit breaker.

Description

배전선로 가스개폐기용 휴대형 가스보충기{Portable type Gas Refill Device for Gas Insulation Circuit Breaker of Distribution Line}Portable Type Gas Refill Device for Gas Insulator Circuit Breaker of Distribution Line

본 발명은 전력공급용 배전선로에 설치된 가스절연 부하개폐기의 가스 누출로 가스압력이 규정치 이하가 되어 록크장치가 동작하는 경우에, 현장에서 즉시 가스압력을 보충할 수 있게 하는 장치에 관한 것이다.The present invention relates to a device that can immediately replenish the gas pressure in the field when the lock device is operated when the gas pressure is less than the prescribed value due to the gas leakage of the gas insulated load switch installed in the power supply distribution line.

전력공급용 배전선로에는 분기점이나 일정 구간마다 개폐기를 설치하여 분기선로나 일정 구간의 전력공급을 제어할 수 있게 하여, 사고구간분리, 부하절채, 정기보수작업 등을 수행할 수 있게 하고 있다. 이러한 용도로 사용되는 개폐기로는 10여 년 전까지만 하여도 개폐기 챔버 내에 절연유를 주입한 유입개폐기가 주로 사용되었으나, 최근에는 절연능력과 소호능력이 우수한 육불화유황(SF6 = sulfur hexafluoride) 가스를 개폐 챔버 내에 주입한 가스절연 부하개폐기를 많이 사용하고 있다. 그러나 이 가스절연 부하개폐기에 봉입된 가스가 누출되어 가스압력이 규정값 이하로 저하되는 경우에는 개폐기동작이 자동적으로 록크되도록 구성하고 있다. 그 이유는 규정값 이하의 가스압력에서는 필요한 절연능력과 소호능력을 가지 지 못함으로, 이때의 개폐기 동작은 개폐기 폭발의 사고로 발전할 수 있기 때문이다.Switchgear for power supply is provided with switchgear at each branch or certain section to control the supply of electricity at branch line or certain section, so that accident section separation, load saving, and regular maintenance work can be performed. As the switch used for this purpose, the inlet switch which injected the insulating oil into the switch chamber was used up to 10 years ago. Recently, SF 6 = sulfur hexafluoride (SF 6 ) gas having excellent insulation and extinguishing ability has been used. Many gas insulated load switches are injected into the open / close chamber. However, when the gas enclosed in this gas insulated load switch is leaked and the gas pressure falls below a specified value, the switch operation is automatically locked. The reason is that the gas pressure below the specified value does not have the necessary insulation and extinguishing capacity, and the switch operation at this time may develop into an accident of the switch explosion.

지금까지는 배전공사현장에서 가스절연 부하개폐기의 가스압력저하로 인한 조작불능상태가 발생할 때마다, 공사용 개폐기를 가스절연 부하개폐기와 병열로 활선작업으로 설치한 후 가스절연 부하개폐기를 철거하여 수리를 의뢰하는데, 이러한 과정은 계획정전작업이나 부하절체 조작시간을 지체시킴으로써, 정전시간 연장, 공사비용 증대, 안전위해요소 증가 등 많은 문제점을 발생시키고 있다.  Until now, whenever the operation condition occurs due to the gas pressure drop of gas insulated load switchgear at the distribution site, install the construction switchgear in parallel with the gas insulated load switch and remove the gas insulated load switch and request for repair. However, this process causes many problems such as prolonged blackout time, increased construction cost, and increased safety risk factors by delaying the planned outage work or load transfer operation time.

본 발명은 상기의 배경기술에서 파생되고 있는 종래의 문제점들을 개선하고자 발명된 것으로서, 실린더와 감압기와 압력계와 주입장치로 구성된 휴대형의 가스보충기를 제작하되, 기존의 가스절연 부하개폐기 가스주입구에 적용할 수 있도록 제작하고, 배전선로 전기공사 작업자들이 항상 휴대할 수 있도록 소형의 장치로 하여, 가스압력저하로 작동이 록크된 개폐기의 부족한 가스를 현장에서 즉시 보충할 수 있게 함으로써, 배전선로 전력공급 조작을 원활하게 하는 것을 본 발명의 기술적 과제로 하였다.The present invention has been invented to improve the conventional problems derived from the background art, but to manufacture a portable gas filler consisting of a cylinder, a pressure reducer, a pressure gauge and an injection device, it is applicable to the existing gas insulated load switch gas inlet It is designed so that it is possible to carry out the distribution line power supply operation immediately by making it compact in size so that it can always be carried by the distribution line electric construction workers. Making it smooth was made the technical subject of this invention.

상기 휴대형 가스보충기는는 고압액화가스를 수납하는 실린더와 가스압력을 감압하는 감압기와 가스압력을 확인할 수 있는 압력계와 가스를 개폐기로 주입할 수 있는 멀티유니온조인트로 구성하는 것을 특징으로 하는 배전선로 가스개폐기용 휴대형 가스보충기에 관한 것이다.The portable gas filler includes a cylinder for storing the high pressure liquefied gas, a pressure reducer for reducing the gas pressure, a pressure gauge for checking the gas pressure, and a multi-union joint for injecting the gas into the switch. It relates to a portable gas filler for use.

상기의 목적들을 달성하기 위한 본 발명에 따른 가스절연 부하개폐기는 고압액화가스를 일정량 수납하는 소형의 실린더와, 고압가스의 압력을 감압할 수 있는 감압기와, 가스압력을 확인할 수 있는 압력계와, 보충가스를 작동이 록크된 개폐기 챔버 내로 주입할 수 있는 멀티유니온조인트로 구성하되, 소형의 휴대형으로 제작하여 배전선로 공사차량에 상비하게 하여, 가스압력저하로 작동이 록크된 개폐기의 부족한 가스를 현장에서 즉시 보충할 수 있게 하는 것이다.The gas insulated load switch according to the present invention for achieving the above objects is a compact cylinder for storing a certain amount of high pressure liquefied gas, a pressure reducer capable of reducing the pressure of the high pressure gas, a pressure gauge for confirming the gas pressure, supplement It is composed of multi-union joints that can inject gas into the switchgear chamber with the operation locked, but it is made of small size and portable to the distribution line construction vehicle. It is to be able to replenish immediately.

국내에서 가스절연 부하개폐기를 생산하는 업체는 10여개이나 대표적 제작사는 신아전기, 일진전기, 중원이앤씨, 중원전기이다. 제작사별 규정압력은 0.6㎏/㎠에서 2.0㎏/㎠이고, 록크장치 동작압력은 0.2㎏/㎠에서 1.7㎏/㎠이다. 각각의 개폐기는 록크장치가 동작하였을 경우에 그 동작을 표시하는 표시기를 가지고 있는데, 기기 몸체 좌측 중앙 또는 바닥에 적색의 표시침이나 표시기로 표시하게 되어 있다.  There are about 10 companies that produce gas-insulated load breakers in Korea, but representative manufacturers are Shin-A Electric, Iljin Electric, Joongwon E & C, and Joongwon Electric. The manufacturer-specific pressure is 0.6kg / cm 2 to 2.0kg / cm 2 and the lock device operating pressure is 0.2kg / cm 2 to 1.7kg / cm 2. Each switch has an indicator that indicates the operation when the lock device is operated. The switch is indicated by a red indicator needle or indicator on the center or bottom of the left side of the body.

모든 가스절연 부하개폐기는 개폐기 챔버 내로 가스를 주입할 수 있는 주입구가 설치되어 있는데, 주입구에서 개폐밸브와 체크밸브를 통과하여 개폐챔버에 연결되도록 구성되어 있다. 특히 체크밸브는 외부에서 챔버측으로만 유체가 흐르도록 되어 있어서 가스의 역류는 거의 불가능하다. All gas insulated load switchgear is provided with an inlet for injecting gas into the switchgear chamber, and is configured to be connected to the open / closed chamber through the on / off valve and the check valve at the inlet. In particular, the check valve is such that the fluid flows only from the outside to the chamber side, so that backflow of gas is almost impossible.

본 발명에 의한 배전선로 가스개폐기용 휴대형 가스보충기의 효과는, 정전작업이나 부하절체 등의 배전선로 전력공급 개폐기 조작 시에, 부하개폐기의 가스압력저하로 인한 조작불능상태가 발생하여도 신속한 개폐기조작을 할 수 있어서, 정전시간이나 공사비용과 안전위해 등의 문제를 발생시키지 않고, 배전선로 전력공급 조작을 원활하게 할 수 있게 하는 것이다.The effect of the portable gas filler for the switchgear gas switch according to the present invention is that, even when the operation of the power supply switchgear such as power failure work or load switching, even if the operation state due to the gas pressure drop of the load switch occurs, the switchgear It is possible to operate the power supply line smoothly without causing troubles such as power failure time, construction cost and safety hazard.

도 1은 배전선로 가스개폐기용 휴대형 가스보충기의 구성을 나타낸 일실시 예시도이다. 실린더(100)에는 고압액화가스를 일정량 수납하고, 수납된 액화가스는 감압기(101)를 통하여 개폐기 챔버내 규정치 압력의 1.2배 정도 압력까지 감압함으로써 액화가스는 기화가스로 변환되고, 기화된 가스는 제1개폐밸브(102)를 통과하여 압력계(103)를 작동시킴으로써 보충할 수 있는 유효압력의 가스 잔존량을 확인할 수 있게 하며, 제2개폐밸브(104)를 열면 멀티유니온조인트(105)를 통하여 가스가 개폐기 챔버 내로 보충되게 되는 것이다. 여기서 멀티유니온조인트(105)는 가스보충기와 가스절연개폐기의 가스주입구를 최종적으로 연결하는 장치로서, 제작사별로 주입구의 크기 차이가 있더라도 용이하게 연결할 수 있게 하는 조인트장치이다. 또 상기 각각의 부분품 사이는 예시도와 같이 연결하는 배관(106)으로 구성한다.1 is an exemplary view showing the configuration of a portable gas filler for a gas line switch of a distribution line. The cylinder 100 receives a certain amount of high pressure liquefied gas, and the liquefied gas is converted into vaporized gas by reducing the stored liquefied gas to 1.2 times the prescribed pressure in the switchgear chamber through the pressure reducer 101. The gas can be checked through the first opening and closing valve 102 to operate the pressure gauge 103 to check the gas remaining amount of the effective pressure that can be replenished, and when the second opening and closing valve 104 is opened, the multi-union joint 105 is opened. Gas is to be replenished into the switchgear chamber. The multi-union joint 105 is a device for finally connecting the gas inlet of the gas filler and the gas insulated switchgear, it is a joint device that can be easily connected even if there is a difference in the size of the inlet for each manufacturer. Moreover, between each said part, it comprises the piping 106 connecting as shown in figure.

휴대형 가스보충기의 사용방법은 먼저, 가스가 누출되어 록크장치가 동작된 가스절연 부하개폐기의 록크장치 동작을 확인하고, 휴대형 가스보충기를 활선용 버켓트럭의 버켓에 설치한다. 둘째 휴대형 가스보충기의 멀티유니온조인트(105)와 가스절연 부하개폐기의 주입구를 정확하게 연결한 후 개폐기측의 개폐밸브를 열어둔다. 셋째 휴대형 가스보충기의 제1개폐밸브(102)를 열어서 압력계(103)를 관찰하여 보충할 수 있는 유효압력의 가스 저장량을 확인한다. 넷째 제2개폐밸브(104)를 서서히 열면서 압력계(103)의 압력을 관찰하면, 처음에는 압력이 매우 저하하지만 시간이 지나면 개폐기 챔버 내의 압력이 보충되면서 압력계의 압력이 상승하게 된다. 끝으로 압력계의 압력이 규정치 이상으로 회복되면 제2개폐밸브(104)를 폐쇄하고, 지금까지의 조작순서와 반대순서로 조작하여 최종적으로 휴대형 가스보충기를 철거하는 것이다.   In the method of using the portable gas supplement, first, the operation of the lock apparatus of the gas insulated load switch in which the lock device is operated due to the leakage of gas is confirmed, and the portable gas supplement is installed in the bucket of the live bucket bucket. Second, after correctly connecting the multi-union joint 105 of the portable gas filler and the inlet of the gas insulated load switch, the on / off valve of the switch side is opened. Third, open the first opening / closing valve 102 of the portable gas filler and observe the pressure gauge 103 to check the gas storage amount of the effective pressure that can be replenished. Fourth, when the pressure of the pressure gauge 103 is observed while gradually opening the second opening / closing valve 104, the pressure decreases first, but as time passes, the pressure of the pressure gauge increases while the pressure in the switch chamber is replenished. Finally, when the pressure of the pressure gauge recovers above the prescribed value, the second opening / closing valve 104 is closed, and the portable gas filler is finally removed by operating in the reverse order to the conventional operation procedure.

도 1은 배전선로 가스개폐기용 휴대형 가스보충기의 구성을 나타낸 일실시 예시도이다.1 is an exemplary view showing the configuration of a portable gas filler for a gas line switch of a distribution line.

Claims (1)

전력공급 배전선로용 가스절연 부하개폐기의 가스압력 부족을 현장에서 보충하는 장치로서, 육불화유황(SF6 = sulfur hexafluoride) 고압액화가스를 일정량 수납하는 소형의 실린더(100)와, 고압가스의 압력을 감압할 수 있는 감압기(101)와, 가스압력을 확인할 수 있는 압력계(103)와, 압력계(103)측으로 가스를 흐르게 하는 제1개폐밸브(102)와, 부하개폐기의 주입구 측으로 가스를 흐르게 하는 제2개폐밸브(104)와, 가스보충기와 가스절연개폐기의 가스주입구를 최종적으로 연결하는 멀티유니온조인트(105)와, 상기의 각 부분품을 연결하는 배관(106)으로 구성하는 것을 특징으로 하는 배전선로 가스개폐기용 휴대형 가스보충기.As a device for supplementing on-site gas pressure shortage of gas insulated load switch for power supply distribution line, small cylinder 100 for storing a certain amount of high pressure liquefied gas (SF 6 = sulfur hexafluoride) and high pressure gas pressure Pressure reducer 101 capable of reducing the pressure, pressure gauge 103 capable of confirming gas pressure, first opening / closing valve 102 for flowing gas to the pressure gauge 103 side, and gas flow to the inlet side of the load switch. The second opening and closing valve 104, the multi-union joint 105 for finally connecting the gas inlet and the gas inlet of the gas insulated switchgear, and the pipe 106 for connecting each of the above parts, characterized in that the configuration Portable gas filler for gas switchgear of distribution line.
KR1020080094918A 2008-09-26 2008-09-26 Portable type gas refill device for gas insulation circuit breaker of distribution line KR20100035498A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105402454A (en) * 2015-08-21 2016-03-16 中国人民解放军国防科学技术大学 Gas supply adjustment device based on pressure reducers
CN113983349A (en) * 2021-09-22 2022-01-28 云南电网有限责任公司保山供电局 Method and system for determining gas supplementing gas of mixed gas insulation equipment
KR20220159152A (en) * 2021-05-25 2022-12-02 한국전력공사 Gas injection device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105402454A (en) * 2015-08-21 2016-03-16 中国人民解放军国防科学技术大学 Gas supply adjustment device based on pressure reducers
CN105402454B (en) * 2015-08-21 2019-12-13 中国人民解放军国防科学技术大学 Gas supply adjusting device based on pressure reducer
KR20220159152A (en) * 2021-05-25 2022-12-02 한국전력공사 Gas injection device
KR20230109602A (en) * 2021-05-25 2023-07-20 한국전력공사 Gas injection device
KR20230109603A (en) * 2021-05-25 2023-07-20 한국전력공사 Gas injection device
CN113983349A (en) * 2021-09-22 2022-01-28 云南电网有限责任公司保山供电局 Method and system for determining gas supplementing gas of mixed gas insulation equipment

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