CN203536826U - Portable pneumatic short circuit grounding device of transformer station - Google Patents
Portable pneumatic short circuit grounding device of transformer station Download PDFInfo
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- CN203536826U CN203536826U CN201320747402.9U CN201320747402U CN203536826U CN 203536826 U CN203536826 U CN 203536826U CN 201320747402 U CN201320747402 U CN 201320747402U CN 203536826 U CN203536826 U CN 203536826U
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- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000004020 conductor Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
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Abstract
The utility model discloses a portable pneumatic short circuit grounding device of a transformer station, and relates to a short circuit grounding device of a transformer station. The device comprises a pneumatic mast (1), a switch blade working cylinder (2), and movable contacts (3). The pneumatic mast (1) is formed by combining multistage cylinders. The bottom of a lowest stage cylinder is provided with a gas in-and-out valve (11). The switch blade working cylinder (2) is fixed on the top of the pneumatic mast (1). In the switch blade working cylinder (2), a switch blade transmission rod (4) and a piston (21) connected with the switch blade transmission rod are disposed. The bottom of the switch blade working cylinder (2) is provided with a gas in-and-out flexible pipe (22). The movable contacts (3) are in a pair, respectively disposed on the top of two clamping arms (51) of a movable contact clamping device (5). The device expands height range of portable short circuit ground wires, and performs reliable grounding on ultrahigh voltage and extra-high voltage outdoor open-type electrical equipment whose installation height is high. The device is simple in structure, convenient in carrying, and safe in operation.
Description
Technical field
the utility model 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 in electric power system, to guarantee the important tool of staff's safety when unexpectedly there is voltage on the equipment having had a power failure and circuit, its effect is when high-tension apparatus carries out interruption maintenance or carries out other work, prevent equipment incoming call and the harm of contiguous high voltage alive equipment generation induced voltage to human body suddenly, the residual charge of the power cutoff device of simultaneously releasing.Installation and removal temporary ground wire is an important inspection operation in electric power system.In converting equipment service work in transformer station, conventionally adopt Portable short circuit ground line at present, mainly adopt insulated operating rod that short-circuit grounding wire is hung on repair apparatus or wire.Yet on-the-spot at station, the earth point of some equipment is too high, staff only depends on that manually to hang earth connection very difficult; It is therefore this that manually to hang mode less for insulation distance, equipment overhead short 10kV to the 110kV comparison in equipment of distance is suitable for, but reach the open type extra-high tension unit of 500kV and above 1000kV extra-high voltage equipment 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.
being applied to the conventional ground operation bar insulated part of 500kV equipment and transmission line and the total length of handshake part is only 5500mm.And take the STB-550 type earthing switch blade that Wuxi AREAL company produces, it is example, this plug-in strip fixed contact overhead distance has reached 9180mm, therefore in actual working site, even if adopt the longest ground operation bar, staff also must could manual carry out hanging earthing conductor at the height of 3 ~ 4 meters of left and right, and because 500kV earth connection has larger deadweight, earth rod length is long simultaneously, in this case, staff is when the manual operation and the risk that easily exists fall from high altitude risk and induced electricity to get an electric shock.
Summary of the invention
for solving the technical problem of above-mentioned existence, the utility model provides a kind of transformer station portable pneumatic short-circuit grounding device, expanded the altitude range of portable short-circuit grounding wire, the higher superhigh pressure of setting height(from bottom), the outdoor open type electric equipment of ultra high voltage are carried out to reliable ground, simple in structure, easy to carry, handling safety.
for achieving the above object, the technical scheme that the utility model adopts 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 and combined by multi-stage cylinder, 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, described plug-in strip working cylinder bottom arranges into air-out hose, described moving contact is a pair of, be arranged at respectively the top of two clamp arms of moving contact clamping device, between two clamp arms of described moving contact clamping device, by back-moving spring, connect, 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 running through downwards.
between two clamp arms of described moving contact and moving contact clamping device for removably connecting.
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.
on described pneumatic mast, be provided with for the fixing fixture of its side object.
the pneumatic mast that the utility model employing is comprised of multi-stage cylinder is as the lowering or hoisting gear of earth connection, do not need manually to articulate, mast maximum extension length surpasses 10 meters, considerably beyond the critical distance of 5.5 meters of the 500kV portable short-circuit earthing device requiring in GB; That earth connection adopts is 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 cylinder is injected to air, promotes piston movement, makes plug-in strip moving contact complete closing operation; Plug-in strip main contact is detachable, and replaceable Multiple Type plug-in strip main contact, is applicable to the equipment ground point of the various ways such as wire, grading ring, band iron, bus bar; The making process of the telescopic process of pneumatic mast and plug-in strip moving contact can be controlled respectively by note vent valve separately, has good flexibility while using at the scene; Field personnel all only need, on ground in the face of this device operates, therefore cause personal danger of getting an electric shock without any falling from high altitude and safe distance not.
Accompanying drawing explanation
fig. 1 is the utility model structural representation.
Embodiment
below in conjunction with the drawings and specific embodiments, the utility model is described in detail:
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 and combined by multi-stage cylinder, minimum one-level cylinder bottom arranges air valve door 11, during work, be connected with source of the gas, the highest lifting altitude of described pneumatic mast 1 is greater than 10 meters, to meet the outdoor open type electric equipment of superhigh pressure, ultra high voltage that design height is higher, 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 7 running 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 are provided with plug-in strip drive link 4 and coupled piston 21, and described plug-in strip working cylinder 2 bottoms arrange into air-out hose 22, during work, are connected with source of the gas.Described moving contact 3 is set to a pair of detachable metal fixture of opening, be arranged at respectively the top of 5 two clamp arms 51 of moving contact clamping device, between two clamp arms 51 of described moving contact clamping device 5, by back-moving spring 6, connect, the bottom of described moving contact clamping device 5 is connected with plug-in strip drive link 4.
between two clamp arms 51 of described moving contact 3 and moving contact clamping device 5 for removably connecting, described moving contact 3 adopts conventional moving contact form, be set to a pair of detachable metal fixture, its relative medial surface can be circular arc, being applicable to press from both sides cylindrical fixed contact, as grading ring, wire etc., can be also inclined-plane, be used 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.
described pneumatic mast 1 bottom is provided with adjustable for height tripod, when needed, tripod can be fixed on the ground, then pneumatic mast 1 is fixed on tripod, by regulating the height of tripod to carry out the height of regulated ground device.
on described pneumatic mast 1, be provided with for the fixing fixture of its side object, convenient and safe.
making process of the present utility model is as follows:
separating brake process of the present utility model is as follows:
first the air-out hose 22 that enters by plug-in strip working cylinder 2 carries out bleed air operation, now, the interior gas pressure of plug-in strip working cylinder 2 reduces rapidly, moving contact 3 is under the effect of deadweight and back-moving spring 6, complete sub-switching operation, now, can carry out bleed air operation to pneumatic mast 1, pneumatic mast 1 will shrink the initial condition that reverts to earthing device gradually.
in sum, the utility model is simple in structure, conveniently moving, can realize two people's carryings, two people's operations, the operation of divide-shut brake only need operate on the ground source of the gas pneumatic mast and plug-in strip moving contact are controlled, without manually hanging, ground connection highly expands to more than 10 meters, without threat, safe and reliable to operating personnel's personal safety.
certainly; above-mentioned explanation is not to restriction of the present utility model; the utility model is also not limited in above-mentioned giving an example, and the variation that those skilled in the art make in essential scope of the present utility model, remodeling, interpolation or replacement, also should belong to protection range of the present utility model.
Claims (6)
1.Yi Zhong transformer station 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 and combined by multi-stage cylinder, 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 of, be arranged at respectively the top of (5) two clamp arms of moving contact clamping device (51), between two clamp arms (51) of described moving contact clamping device (5), by back-moving spring (6), connect, 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) running through downwards.
2. transformer station according to claim 1 portable pneumatic short-circuit grounding device, is characterized in that, between described moving contact (3) and two clamp arms (51) of moving contact clamping device (5) for removably connecting.
3. transformer station according to claim 1 portable pneumatic short-circuit grounding device, is characterized in that, the highest lifting altitude of described pneumatic mast (1) is greater than 10 meters.
4. 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.
5. 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.
6. transformer station according to claim 1 portable pneumatic short-circuit grounding device, is characterized in that, on described pneumatic mast (1), be provided with for the fixing fixture of its side object.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320747402.9U CN203536826U (en) | 2013-11-25 | 2013-11-25 | Portable pneumatic short circuit grounding device of transformer station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320747402.9U CN203536826U (en) | 2013-11-25 | 2013-11-25 | Portable pneumatic short circuit grounding device of transformer station |
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| Publication Number | Publication Date |
|---|---|
| CN203536826U true CN203536826U (en) | 2014-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320747402.9U Expired - Fee Related CN203536826U (en) | 2013-11-25 | 2013-11-25 | Portable pneumatic short circuit grounding device of transformer station |
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| CN (1) | CN203536826U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103560421A (en) * | 2013-11-25 | 2014-02-05 | 吴胜 | Portable pneumatic circuit grounding device of transformer substation |
| CN104466590A (en) * | 2014-10-29 | 2015-03-25 | 国家电网公司 | Pneumatic operating end structure of grounding wire operating lever |
-
2013
- 2013-11-25 CN CN201320747402.9U patent/CN203536826U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103560421A (en) * | 2013-11-25 | 2014-02-05 | 吴胜 | Portable pneumatic circuit grounding device of transformer substation |
| CN103560421B (en) * | 2013-11-25 | 2015-09-09 | 国家电网公司 | Transformer station's portable pneumatic short-circuit grounding device |
| CN104466590A (en) * | 2014-10-29 | 2015-03-25 | 国家电网公司 | Pneumatic operating end structure of grounding wire operating lever |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: MAINTENANCE COMPANY OF STATE GRID ANHUI ELECTRIC P Free format text: FORMER OWNER: LIAO JUN Effective date: 20150106 Owner name: STATE GRID CORPORATION OF CHINA Free format text: FORMER OWNER: WU SHENG Effective date: 20150106 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 230001 HEFEI, ANHUI PROVINCE TO: 100031 XICHENG, BEIJING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20150106 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee after: State Grid Corporation of China Patentee 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 Patentee before: Wu Sheng Patentee before: Liao Jun |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140409 Termination date: 20171125 |