CN103560421B - Transformer station's portable pneumatic short-circuit grounding device - Google Patents
Transformer station's portable pneumatic short-circuit grounding device Download PDFInfo
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- CN103560421B CN103560421B CN201310598572.XA CN201310598572A CN103560421B CN 103560421 B CN103560421 B CN 103560421B CN 201310598572 A CN201310598572 A CN 201310598572A CN 103560421 B CN103560421 B CN 103560421B
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- 239000004020 conductor Substances 0.000 description 2
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- 230000005611 electricity Effects 0.000 description 1
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- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
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Abstract
The invention discloses a kind of transformer station portable pneumatic short-circuit grounding device, relate to transformer station's short-circuit grounding device, comprise pneumatic mast (1), plug-in strip working cylinder (2) and moving contact (3), described pneumatic mast (1) is set to be connected by multi-stage cylinder combine, minimum one-level cylinder bottom arranges air valve door (11), described plug-in strip working cylinder (2) is fixed on the top of pneumatic mast (1), described plug-in strip working cylinder (2) inside is provided with plug-in strip drive link (4) and coupled piston (21), described plug-in strip working cylinder (2) bottom arranges into air-out hose (22), described moving contact (3) is a pair, be arranged at the top of moving contact clamping device (5) two clamp arms (51) respectively.The present invention has expanded the altitude range of portable short-circuit grounding wire, and carry out reliable ground to the higher superhigh pressure of setting height(from bottom), the outdoor open type electric equipment of ultra high voltage, structure is simple, easy to carry, handling safety.
Description
Technical field
the present invention relates to transformer station's short-circuit grounding device, specifically a kind of transformer station portable pneumatic short-circuit grounding device.
Background technology
earth connection is to ensure the important tool of worker safety when unexpectedly there is voltage on the equipment had a power failure and circuit in electric power system, its effect is when high-tension apparatus carries out interruption maintenance or carries out other work, prevent from equipment from sending a telegram here suddenly and be close to high voltage alive equipment producing induced voltage to the harm of human body, the residual charge of power cutoff device of simultaneously releasing.Installation and removal temporary ground wire is an important inspection operation in electric power system.Usually adopt Portable short circuit ground line in converting equipment service work in current transformer station, short-circuit grounding wire hangs on repair apparatus or wire by the main insulated operating rod that adopts.But on-the-spot at station, the earth point of some equipment is too high, and staff is only very difficult by manually hanging earth connection; It is therefore this that manually to hang mode less for insulation distance, equipment is overhead more applicable apart from short 10kV to 110kV equipment, but the open type extra-high tension unit of 500kV and above 1000kV extra-high voltage equipment are reached for electric pressure, because apparatus insulated distance is larger, therefore equipment setting height(from bottom) is also higher, adopts the mode of the artificial hanging earthing conductor of insulating bar to be often difficult to realize.
the total length of the conventional ground operation bar insulated part and handshake part that are applied to 500kV equipment and transmission line is only 5500mm.And for the STB-550 type earthing switch blade that Wuxi AREAL company produces, this plug-in strip fixed contact overhead distance reaches 9180mm, therefore in the working site of reality, even if adopt the longest ground operation bar, staff also manual must could carry out hanging earthing conductor at the height of about 3 ~ 4 meters, and because 500kV earth connection has larger deadweight, earth rod length is long simultaneously, in this case, staff is by during manual operation and easily there is the risk that fall from high altitude risk and induced electricity get an electric shock.
Summary of the invention
for solving the technical problem of above-mentioned existence, the invention provides a kind of transformer station portable pneumatic short-circuit grounding device, expand the altitude range of portable short-circuit grounding wire, reliable ground is carried out to the higher superhigh pressure of setting height(from bottom), the outdoor open type electric equipment of ultra high voltage, structure is simple, easy to carry, handling safety.
for achieving the above object, the technical solution adopted in the present invention is:
a kind of transformer station portable pneumatic short-circuit grounding device, comprise pneumatic mast, plug-in strip working cylinder and moving contact, described pneumatic mast is set to be connected by multi-stage cylinder combine, minimum one-level cylinder bottom arranges air valve door, described plug-in strip working cylinder is fixed on the top of pneumatic mast, described plug-in strip working cylinder inside is provided with plug-in strip drive link and coupled piston, arrange into air-out hose bottom described plug-in strip working cylinder, described moving contact is a pair, be arranged at the top of moving contact clamping device two clamp arms respectively, connected by back-moving spring between two clamp arms of described moving contact clamping device, the bottom of described moving contact clamping device is connected with plug-in strip drive link, described pneumatic mast cylinder body inner top is provided with the spiral earth connection run through downwards.
for removably connecting between described moving contact and two clamp arms of moving contact clamping device.
the highest lifting altitude of described pneumatic mast is greater than 10 meters.
the pneumatic power source of described pneumatic mast and plug-in strip working cylinder can adopt inflator or air pump.
described pneumatic mast foot is provided with adjustable for height tripod.
described pneumatic mast is provided with for the fixture fixing with its side object.
the present invention adopts the pneumatic mast be made up of multi-stage cylinder as the lowering or hoisting gear of earth connection, does not need manually to mount, mast maximum extension length more than 10 meters, the critical distance of the 500kV portable short-circuit earthing device 5.5 meters required in GB; Earth connection adopt built-in, attractive in appearance, clean and tidy, be convenient to install; Earthing device plug-in strip moving contact operation part is pneumatic type structure, adopts the plug-in strip working cylinder relatively independent with pneumatic mast, by injecting air to cylinder, promoting piston movement, making plug-in strip moving contact complete closing operation; Plug-in strip main contact is detachable, and replaceable Multiple Type plug-in strip main contact, be applicable to the equipment ground point of the various ways such as wire, grading ring, band iron, bus bar; The telescopic process of pneumatic mast and the making process of plug-in strip moving contact control respectively by respective note vent valve, have good flexibility when using at the scene; Field personnel all only need on ground in the face of this device operate, and so there is no the danger that any falling from high altitude and safe distance cause the person to get an electric shock not.
Accompanying drawing explanation
fig. 1 is structural representation of the present invention.
Embodiment
describe the present invention below in conjunction with the drawings and specific embodiments:
as shown in Figure 1, this transformer station's portable pneumatic short-circuit grounding device, comprises pneumatic mast 1, plug-in strip working cylinder 2 and moving contact 3.
described pneumatic mast 1 is set to be connected by multi-stage cylinder combine, minimum one-level cylinder bottom arranges air valve door 11, be connected with source of the gas during work, the highest lifting altitude of described pneumatic mast 1 is greater than 10 meters, and to meet the higher superhigh pressure of design height, the outdoor open type electric equipment of ultra high voltage carries out safety ground.In the present embodiment, pneumatic mast 1 is set to two-stage cylinder and combines.Described pneumatic mast 1 cylinder body inner top arranges the spiral earth connection run through downwards.
described plug-in strip working cylinder 2 is fixed on the top of pneumatic mast 1, and described plug-in strip working cylinder 2 inside is provided with plug-in strip drive link 4 and coupled piston 21, arranges into air-out hose 22, be connected during work with source of the gas bottom described plug-in strip working cylinder 2.Described moving contact 3 is set to open detachable metal fixture for a pair, be arranged at the top of moving contact clamping device 5 two clamp arms 51 respectively, connected by back-moving spring 6 between two clamp arms 51 of described moving contact clamping device 5, the bottom of described moving contact clamping device 5 is connected with plug-in strip drive link 4
for removably connecting between described moving contact 3 and two clamp arms 51 of moving contact clamping device 5, described moving contact 3 adopts conventional moving contact form, be set to a pair detachable metal fixture, its relative medial surface can be circular arc, being applicable to folder cylindrical static contact, as grading ring, wire etc., also can be inclined-plane, for pressing from both sides flat fixed contact, as band iron, bus bar etc.
the pneumatic power source of described pneumatic mast 1 and plug-in strip working cylinder 2 can adopt inflator or air pump according to actual needs, and operating personnel carry out the breaking-closing operating of the pneumatic mast 1 of Artificial Control and moving contact on ground.
be provided with adjustable for height tripod bottom described pneumatic mast 1, when needed, tripod can be fixed on the ground, then pneumatic mast 1 be fixed on tripod, by the height regulating the height of tripod to carry out regulated ground device.
described pneumatic mast 1 is provided with for the fixture fixing with its side object, convenient and safe.
making process of the present invention is as follows:
pneumatic mast 1 be initially contraction state, plug-in strip mouth is open mode.First the air valve door 11 of pneumatic mast 1 is inflated, airing form can adopt inflator, also air pump can be adopted to inject air, pneumatic mast 1 will rise exhibition gradually because expand, finally reach design height, now, stop the charge operation to pneumatic mast 1, then inflate by entering air-out hose 22 pairs of plug-in strip working cylinders 2, this enters air-out hose 22 and guides to ground, to facilitate surface personnel, charge operation is carried out to plug-in strip working cylinder 2, constantly air is injected along with in plug-in strip working cylinder 2, piston 21 will move upward, and promote moving contact clamping device 5 action, two moving contacts 3 are made to complete closing operation to fixed contact.
separating brake process of the present invention is as follows:
first bleed air operation is carried out by the air-out hose 22 that enters of plug-in strip working cylinder 2, now, in plug-in strip working cylinder 2, gas pressure reduces rapidly, moving contact 3 deadweight and back-moving spring 6 effect under, complete sub-switching operation, now, can carry out bleed air operation to pneumatic mast 1, pneumatic mast 1 will shrink the initial condition reverting to earthing device gradually.
in sum, structure of the present invention is simple, conveniently moving, can realize two people's carryings, two people's operations, the operation of divide-shut brake only need operate source of the gas on the ground and control pneumatic mast and plug-in strip moving contact, without the need to manually hanging, ground connection highly expands to more than 10 meters, to the personal safety of operating personnel without threat, safe and reliable.
certainly, above-mentioned explanation is not limitation of the present invention, and the present invention is also not limited in above-mentioned citing, and the change that those skilled in the art make in essential scope of the present invention, remodeling, interpolation or replacement also should belong to protection scope of the present invention.
Claims (4)
1. transformer station's portable pneumatic short-circuit grounding device, it is characterized in that, comprise pneumatic mast (1), plug-in strip working cylinder (2) and moving contact (3), described pneumatic mast (1) is set to be connected by multi-stage cylinder combine, minimum one-level cylinder bottom arranges air valve door (11), described plug-in strip working cylinder (2) is fixed on the top of pneumatic mast (1), described plug-in strip working cylinder (2) inside is provided with plug-in strip drive link (4) and coupled piston (21), described plug-in strip working cylinder (2) bottom arranges into air-out hose (22), described moving contact (3) is a pair, be arranged at the top of moving contact clamping device (5) two clamp arms (51) respectively, connected by back-moving spring (6) between two clamp arms (51) of described moving contact clamping device (5), the bottom of described moving contact clamping device (5) is connected with plug-in strip drive link (4), described pneumatic mast (1) cylinder body inner top is provided with the spiral earth connection (7) run through downwards,
For removably connecting between described moving contact (3) and two clamp arms (51) of moving contact clamping device (5);
The highest lifting altitude of described pneumatic mast (1) is greater than 10 meters.
2. transformer station according to claim 1 portable pneumatic short-circuit grounding device, is characterized in that, the pneumatic power source of described pneumatic mast (1) and plug-in strip working cylinder (2) can adopt inflator or air pump.
3. transformer station according to claim 1 portable pneumatic short-circuit grounding device, is characterized in that, described pneumatic mast (1) bottom is provided with adjustable for height tripod.
4. transformer station according to claim 1 portable pneumatic short-circuit grounding device, is characterized in that, described pneumatic mast (1) is provided with for the fixture fixing with its side object.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310598572.XA CN103560421B (en) | 2013-11-25 | 2013-11-25 | Transformer station's portable pneumatic short-circuit grounding device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310598572.XA CN103560421B (en) | 2013-11-25 | 2013-11-25 | Transformer station's portable pneumatic short-circuit grounding device |
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| Publication Number | Publication Date |
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| CN103560421A CN103560421A (en) | 2014-02-05 |
| CN103560421B true CN103560421B (en) | 2015-09-09 |
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| CN201310598572.XA Active CN103560421B (en) | 2013-11-25 | 2013-11-25 | Transformer station's portable pneumatic short-circuit grounding device |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105186152B (en) * | 2015-10-17 | 2017-07-11 | 国网安徽省电力公司检修公司 | Ground connection gripping body for high-altitude earthing or grounding means |
| CN105206957B (en) * | 2015-10-17 | 2017-05-31 | 国家电网公司 | The high-altitude earthing or grounding means of Pneumatic elevation |
| CN105207038B (en) * | 2015-10-17 | 2017-07-11 | 国网安徽省电力公司检修公司 | The wireless remote control high-altitude earthing or grounding means of hydraulic lifting |
| CN107611751A (en) * | 2017-07-31 | 2018-01-19 | 中国南方电网有限责任公司超高压输电公司贵阳局 | One kind ground wire suspension arrangement |
| CN109411214B (en) * | 2018-09-11 | 2020-07-14 | 国网新疆电力有限公司电力科学研究院 | A portable transformer neutral point monitoring devices for eminence |
| CN110011083B (en) * | 2019-04-02 | 2020-09-04 | 国网安徽省电力有限公司检修分公司 | Portable short circuit grounding device capable of being automatically controlled |
| CN113285251A (en) * | 2021-06-30 | 2021-08-20 | 浙江理工大学 | Pneumatic loading type high-voltage electric grounding rod |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0217731A1 (en) * | 1985-08-30 | 1987-04-08 | Siemens Aktiengesellschaft | High-voltage gas-insulated metal-clad switchgear with earthing switches |
| CN201402920Y (en) * | 2009-02-13 | 2010-02-10 | 江苏雷宇高电压设备有限公司 | Pneumatic grounding device |
| CN201774166U (en) * | 2010-08-02 | 2011-03-23 | 河南省电力公司焦作供电公司 | Capacitor bank grounding device |
| CN201982917U (en) * | 2011-03-24 | 2011-09-21 | 周迎春 | Pneumatic lifting rod |
| CN102674222A (en) * | 2012-04-24 | 2012-09-19 | 江苏金荣机械有限公司 | Cylinder-type lifting device |
| CN203536826U (en) * | 2013-11-25 | 2014-04-09 | 吴胜 | Portable pneumatic short circuit grounding device of transformer station |
-
2013
- 2013-11-25 CN CN201310598572.XA patent/CN103560421B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0217731A1 (en) * | 1985-08-30 | 1987-04-08 | Siemens Aktiengesellschaft | High-voltage gas-insulated metal-clad switchgear with earthing switches |
| CN201402920Y (en) * | 2009-02-13 | 2010-02-10 | 江苏雷宇高电压设备有限公司 | Pneumatic grounding device |
| CN201774166U (en) * | 2010-08-02 | 2011-03-23 | 河南省电力公司焦作供电公司 | Capacitor bank grounding device |
| CN201982917U (en) * | 2011-03-24 | 2011-09-21 | 周迎春 | Pneumatic lifting rod |
| CN102674222A (en) * | 2012-04-24 | 2012-09-19 | 江苏金荣机械有限公司 | Cylinder-type lifting device |
| CN203536826U (en) * | 2013-11-25 | 2014-04-09 | 吴胜 | Portable pneumatic short circuit grounding device of transformer station |
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| CN103560421A (en) | 2014-02-05 |
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Owner name: MAINTENANCE COMPANY OF STATE GRID ANHUI ELECTRIC P Free format text: FORMER OWNER: LIAO JUN Effective date: 20150623 Owner name: STATE GRID CORPORATION OF CHINA Free format text: FORMER OWNER: WU SHENG Effective date: 20150623 |
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Effective date of registration: 20150623 Address after: 100031 Xicheng District, Chang'an Avenue, No. 86, Applicant after: State Grid Corporation of China Applicant after: MAINTENANCE COMPANY OF STATE GRID ANHUI ELECTRIC POWER COMPANY Address before: Luyang District of Hefei city of Shouchun road 230001 Anhui 111 Building No. 1 204 Applicant before: Wu Sheng Applicant before: Liao Jun |
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Address after: 100033 West Chang'an Avenue, Xicheng District, Xicheng District, Beijing Patentee after: STATE GRID CORPORATION OF CHINA Patentee after: STATE GRID ANHUI POWER SUPPLY COMPANY OVERHAUL BRANCH Address before: 100031 No. 86 Chang'an Street, Xicheng District, Beijing Patentee before: State Grid Corporation of China Patentee before: Maintenance Company Of State Grid Anhui Electric Power Company |
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Address after: 100033 West Chang'an Avenue, Xicheng District, Xicheng District, Beijing Patentee after: STATE GRID CORPORATION OF CHINA Patentee after: Super high voltage branch of State Grid Anhui Electric Power Co.,Ltd. Address before: 100033 West Chang'an Avenue, Xicheng District, Xicheng District, Beijing Patentee before: STATE GRID CORPORATION OF CHINA Patentee before: STATE GRID ANHUI POWER SUPPLY COMPANY OVERHAUL BRANCH |