CN104897928A - Insulator spindle elevating gear - Google Patents
Insulator spindle elevating gear Download PDFInfo
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- CN104897928A CN104897928A CN201510340302.8A CN201510340302A CN104897928A CN 104897928 A CN104897928 A CN 104897928A CN 201510340302 A CN201510340302 A CN 201510340302A CN 104897928 A CN104897928 A CN 104897928A
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- test
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- insulating bar
- insulator spindle
- insulation
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Abstract
The invention provides an insulator spindle elevating gear, including insulation inner rods, metal outer cylinders and lifting rod positioning pins. The insulation inner rods telescope in the metal outer cylinders; through the lifting rod positioning pins arranged on the metal outer cylinders, the insulation inner rods are positioned at different heights. The insulator spindle elevating gear can be fixed to a portable insulation safety tool power frequency withstand voltage test dolly, and adjust insulator spindle lengths required by different tests. When not in test, the insulation inner rods shrink in the metal outer cylinders, thereby reducing the size of the insulator spindle elevating gear, and facilitating carrying or placing. In test, the insulation inner rods are pulled out of the metal outer cylinders, adjusted to required safe distances in dependence on different tests, and are positioned by the lifting rod positioning pins for test. The insulator spindle elevating gear meets the requirement for a ground safe distance in test, meanwhile has a small size and is easy to carry.
Description
Technical field
The present invention relates to electric power safety field, be specifically related to a kind of insulating bar jacking gear that can be used for Portable insulation managing security tools and instruments KV power frequency withstand voltage test trolley.
Background technology
Insulating safety tools, as the important auxiliary tool guaranteed personal safety, is widely used in operating maintenance personnel and carries out in the work such as grid switching operation, high-potting, electrical isolation." State Grid Corporation of China's electric power safety working regulation " explicitly calls for, carrying out in the work such as high voltage testing, handling high-tension fuse, drawing switch and disconnecting link, special weather tour, testing crew pressurized operation, hot line job, operating personnel all should use qualified insulating safety tools.
" State Grid Corporation of China's electric power safety working regulation (power transformation part) " annex J managing security tools and instruments pilot project, cycle and requirement define electroscope, ground wire, insulating bar power frequency withstand test standard are as shown in table 1.
Table 1 electroscope, ground wire, insulating bar power frequency withstand test standard
For 110kV and 220kV insulating bar, trial voltage is very high, and site test is often difficult to reach its electric pressure requirement, usually adopts the method for Sectional Test.According to regulatory requirements, 220kV can divide at most 4 sections to be tested, and trial voltage is that 132kV/0.525m, 110kV can divide 3 sections to test, and trial voltage is 88kV/0.433m, and therefore, during insulating bar test, the ceiling voltage applied is 132kV.In prior art, be difficult to accomplish use compact and the device warranty test be easy to carry to transformer station time keep enough safe distances over the ground.
Summary of the invention
In order to solve deficiency of the prior art and defect, the present invention aims to provide a kind of insulating bar jacking gear.This purpose of the present invention is achieved through the following technical solutions:
A kind of insulating bar jacking gear, comprise: bar in insulation, metal outer cylinder and elevating lever register pin, in described insulation, bar is flexible in described metal outer cylinder, by the described elevating lever register pin be arranged on described metal outer cylinder, bar in described insulation is positioned at differing heights.
Further, in described insulation, bar is fiberglass pole.
Further, the long 1.1m of bar in described insulation, diameter is 20mm.
Further, described metal outer cylinder is stainless-steel tube.
Further, the long 0.9m of described metal outer cylinder, diameter is 25mm, and internal diameter is 22mm.
Further, described elevating lever register pin is spring sheet-holder.
Further, the diameter of described spring sheet-holder is 8mm, and long is 60mm.
Insulating bar jacking gear of the present invention can be fixed on Portable insulation managing security tools and instruments KV power frequency withstand voltage test trolley, and two insulating bar jacking gears use simultaneously, one of them is fixed on the side of described test cart, be provided with pulley bottom another to slide on described test cart, regulate the insulating bar length needed for different tests.
When not test (N.T.), in described insulation, bar is contracted in described metal outer cylinder, reduces the volume of described insulating bar jacking gear with this, is convenient to carrying or places.During test, bar in insulation is pulled out in metal outer cylinder, is adjusted to the safe distance of needs according to different tests, with elevating lever register pin location, test.
By insulating bar jacking gear of the present invention, safe distance over the ground when both having met test, can realize again the little portable object of volume.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the insulating bar jacking gear be fixed on Portable insulation managing security tools and instruments KV power frequency withstand voltage test trolley of the present invention;
Fig. 2 is another schematic diagram of the insulating bar jacking gear be fixed on Portable insulation managing security tools and instruments KV power frequency withstand voltage test trolley of the present invention.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
As illustrated in fig. 1 and 2, insulating bar jacking gear 6 of the present invention comprises bar 62 in insulation, metal outer cylinder 61 and elevating lever register pin 63, in described insulation, bar 62 is long 1.1m, diameter is the fiberglass pole of 20mm, and it is flexible in described metal outer cylinder 61, and described metal outer cylinder is long 0.9m, external diameter 25mm, the stainless-steel tube of internal diameter 22mm.By the described elevating lever register pin 63 be arranged on outside described metal outer cylinder 61, bar 62 in described insulation is positioned at differing heights.Described elevating lever register pin is diameter is 8mm, the long spring sheet-holder for 60mm.
On the dolly skeleton 1 of described insulating bar jacking gear 6 fixed portable insulating safety tools KV power frequency withstand voltage test trolley.During not test (N.T.), in the insulation of insulating bar jacking gear of the present invention, bar 62 takes in described metal outer cylinder 61, and its height is suitable with the height of Portable insulation managing security tools and instruments industrial frequency experiment dolly like this, the volume not outside occupying volume, convenient in carrying.The use of insulating bar jacking gear of the present invention is described with insulating bar power frequency withstand test below.
Test tools: the insulating bar of existing common 110kV electric pressure, insulating bar jacking gear 6 and be fixed on the insulating bar stationary installation 7 at described insulating bar jacking gear 6 top.
Test prepares: passed successively by insulating bar in the central aperture of the insulating sleeve of insulating bar stationary installation 7, and fixed by described insulating bar by fastening screw.Arc contact chip in described insulating bar stationary installation 7 contacts to increase and the surface of contact of insulating bar with insulating bar, and doublely does pressure electrode and ground electrode.Described insulating bar stationary installation 7 is fixed on the top of bar in described insulation.
Test: for the insulating bar of the 110kV electric pressure adopted in this test, adopt point 3 sections of modes of carrying out.Therefore according to trial voltage and the two interelectrode distances of table 2 regulation, the trial voltage/length of this test is 88kV/0.433m.Mobile slidably insulating bar jacking gear 6 to 0.433m locates (the 110kV mark in alignment test length scales), and is fixed.And described insulating bar jacking gear is adjusted to the safe distance on distance ground, be then located by elevating lever register pin.External high pressure, ground connection are connected with the fastening screw 73 of two insulating bar stationary installations 7 respectively by lead-in wire, thus form test loop, start test.Slow boosted voltage, reaches 0.75 times of trial voltage value and 66kV magnitude of voltage rises, and with the rate of pressure rise of 2% trial voltage per second to trial voltage 88kV, keeps 1min, then rapid depressurization, but does not cut off suddenly.After off-test, by insulating bar jacking gear 6, tested insulating bar is reduced to operating position, loosen fastening screw 72, regulate tested insulating bar to not test (N.T.) part vertically, screw fastening screw 72, again rise to testing position and test, so in triplicate, extremely all test sections all complete.If insulating bar flashover does not occur or punctures in test, insulating bar discharge off, burn marks after test, do not generate heat, then test is passed through.Otherwise insulating bar can not use.So far insulating bar power frequency withstand test is completed.
The pilot project of table 2 insulating bar, cycle and requirement
The foregoing is only preferred embodiment of the present invention, be not used for limiting practical range of the present invention; If do not depart from the spirit and scope of the present invention, the present invention is modified or equivalent to replace, in the middle of the protection domain that all should be encompassed in the claims in the present invention.
Claims (7)
1. an insulating bar jacking gear, comprise: bar in insulation, metal outer cylinder and elevating lever register pin, in described insulation, bar is flexible in described metal outer cylinder, by the described elevating lever register pin be arranged on described metal outer cylinder, bar in described insulation is positioned at differing heights.
2. insulating bar jacking gear according to claim 1, is characterized in that, in described insulation, bar is fiberglass pole.
3. insulating bar jacking gear according to claim 2, is characterized in that, the long 1.1m of bar in described insulation, diameter is 20mm.
4. insulating bar jacking gear according to claim 1, is characterized in that, described metal outer cylinder is stainless-steel tube.
5. insulating bar jacking gear according to claim 4, is characterized in that, the long 0.9m of described metal outer cylinder, and diameter is 25mm, and internal diameter is 22mm.
6. insulating bar jacking gear according to claim 1, is characterized in that, described elevating lever register pin is spring sheet-holder.
7. insulating bar jacking gear according to claim 6, is characterized in that, the diameter of described spring sheet-holder is 8mm, and long is 60mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510340302.8A CN104897928A (en) | 2015-06-18 | 2015-06-18 | Insulator spindle elevating gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510340302.8A CN104897928A (en) | 2015-06-18 | 2015-06-18 | Insulator spindle elevating gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104897928A true CN104897928A (en) | 2015-09-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510340302.8A Pending CN104897928A (en) | 2015-06-18 | 2015-06-18 | Insulator spindle elevating gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104897928A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106324294A (en) * | 2016-07-05 | 2017-01-11 | 国家电网公司 | Insulating rod voltage-withstanding test frame |
| CN106950479A (en) * | 2017-04-27 | 2017-07-14 | 国网江苏省电力公司太仓市供电公司 | A kind of insulating bar positioner |
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| CN201569723U (en) * | 2009-12-28 | 2010-09-01 | 天津市宝坻供电有限公司 | Device for measuring voltage-withstanding strength of insulated rod |
| CN102001606A (en) * | 2010-11-25 | 2011-04-06 | 甘肃省电力公司兰州超高压输变电公司 | Insulating lifting device |
| CN102338845A (en) * | 2011-09-22 | 2012-02-01 | 安徽省电力公司宣城供电公司 | Insulation characteristic test device of insulating rod |
| CN202614789U (en) * | 2012-06-21 | 2012-12-19 | 石家庄供电公司 | Telescopic insulation test rod |
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| CN203376351U (en) * | 2013-06-24 | 2014-01-01 | 国家电网公司 | Testing rack for insulation bar |
| CN104035014A (en) * | 2014-06-12 | 2014-09-10 | 国家电网公司 | Method for alternating-current voltage withstand testing of 220 kV and 330 kV insulated tools and instruments |
| CN203949940U (en) * | 2014-07-08 | 2014-11-19 | 国网山东齐河县供电公司 | Telescopic insulating support |
| CN204855559U (en) * | 2015-06-18 | 2015-12-09 | 江苏省电力公司太仓市供电公司 | Insulator spindle elevating gear |
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2015
- 2015-06-18 CN CN201510340302.8A patent/CN104897928A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201569723U (en) * | 2009-12-28 | 2010-09-01 | 天津市宝坻供电有限公司 | Device for measuring voltage-withstanding strength of insulated rod |
| CN102001606A (en) * | 2010-11-25 | 2011-04-06 | 甘肃省电力公司兰州超高压输变电公司 | Insulating lifting device |
| CN102338845A (en) * | 2011-09-22 | 2012-02-01 | 安徽省电力公司宣城供电公司 | Insulation characteristic test device of insulating rod |
| CN202614789U (en) * | 2012-06-21 | 2012-12-19 | 石家庄供电公司 | Telescopic insulation test rod |
| CN102944705A (en) * | 2012-11-26 | 2013-02-27 | 宁夏电力公司固原供电局 | Tool for alternating current-direct current high voltage holding test |
| CN203376351U (en) * | 2013-06-24 | 2014-01-01 | 国家电网公司 | Testing rack for insulation bar |
| CN104035014A (en) * | 2014-06-12 | 2014-09-10 | 国家电网公司 | Method for alternating-current voltage withstand testing of 220 kV and 330 kV insulated tools and instruments |
| CN203949940U (en) * | 2014-07-08 | 2014-11-19 | 国网山东齐河县供电公司 | Telescopic insulating support |
| CN204855559U (en) * | 2015-06-18 | 2015-12-09 | 江苏省电力公司太仓市供电公司 | Insulator spindle elevating gear |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106324294A (en) * | 2016-07-05 | 2017-01-11 | 国家电网公司 | Insulating rod voltage-withstanding test frame |
| CN106324294B (en) * | 2016-07-05 | 2018-07-17 | 国家电网公司 | A kind of insulating bar pressure test frame |
| CN106950479A (en) * | 2017-04-27 | 2017-07-14 | 国网江苏省电力公司太仓市供电公司 | A kind of insulating bar positioner |
| CN106950479B (en) * | 2017-04-27 | 2023-10-20 | 国网江苏省电力有限公司太仓市供电分公司 | Insulating rod positioning device |
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Application publication date: 20150909 |