CN203798840U - 1100kV DC wall bushing insulation test device - Google Patents

1100kV DC wall bushing insulation test device Download PDF

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Publication number
CN203798840U
CN203798840U CN201420205041.XU CN201420205041U CN203798840U CN 203798840 U CN203798840 U CN 203798840U CN 201420205041 U CN201420205041 U CN 201420205041U CN 203798840 U CN203798840 U CN 203798840U
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CN
China
Prior art keywords
direct
wall bushing
test device
current wall
insulation test
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN201420205041.XU
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Chinese (zh)
Inventor
罗晓庆
许佐明
胡伟
谢雄杰
张进
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
State Grid Zhejiang Electric Power Co Ltd
China Electric Power Research Institute Co Ltd CEPRI
Original Assignee
State Grid Corp of China SGCC
China Electric Power Research Institute Co Ltd CEPRI
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Priority to CN201420205041.XU priority Critical patent/CN203798840U/en
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Publication of CN203798840U publication Critical patent/CN203798840U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model provides an +-1100kV DC wall bushing insulation test device, comprising a metal fixing plate, a simulation wall body, a support frame and a base. The top of the support frame arranged on the base is vertically provided with the simulation wall body; the connection part between the simulation wall body and the support frame has a breach; the metal fixing plate is arranged within the breach; the middle part of the metal fixing plate is provided with a circular hole; the DC wall bushing is arranged in the circular hole through a connection flange; and an angle regulation device is arranged between the metal fixing plate and the simulation wall body. The +-1100kV wall bushing insulation test device disclosed by the utility model can perform test on the wall bushings in different angle states, the structure is simple, the assembling and disassembling processes are convenient and safe, and the maintenance is easy.

Description

A kind of ± 1100kV direct-current wall bushing insulation test device
Technical field
The utility model relates to a kind of insulation test device, specifically relates to a kind of ± 1100kV direct-current wall bushing insulation test device.
Background technology
Direct-current wall bushing is as the connection device of equipment in current conversion station DC fields and the valve Room, monomer carries full voltage and the total current of its place utmost point, it is the key equipment in DC transmission engineering, its property relationship is to the operation stability of its place utmost point, in DC transmission system in extremely important status.
The insulation characterisitic of direct-current wall bushing is one of key issue affecting its safe operation.Therefore, direct-current wall bushing being carried out to a complete set of insulation characterisitic test is the prerequisite that guarantees its safe and reliable operation.Press national Specification, the Insulation Test of direct-current wall bushing is subject to the impact of ground connection metope and setting angle, and during test, mounting means should be as far as possible and actual motion term harmonization.Direct-current wall bushing in actual motion is installed on the body of wall of the valve Room by certain angle, and has certain for ground level.Practical operation situation for analog DC wall bushing, its test unit should have bracing frame and analogue ground body of wall, bracing frame is used for supporting wall bushing and simulation body of wall, thereby it is certain for ground level that wall bushing is formed, guarantee wall bushing insulation against ground requirement, analogue ground body of wall is for simulating the valve Room metope of actual motion.
At present, domestic has been carried out SI semi-insulation test for low-voltage-grade direct-current wall bushing, tests test unit used and just for low-voltage-grade direct-current wall bushing, designs.On the one hand, along with the lifting of electric pressure, the size of wall bushing, weight and test parameters all can correspondingly increase, and existing direct-current wall bushing test unit can not meet more insulation and the fixedly requirement of support of voltage levels wall bushing.On the other hand, the Electric Field Distribution during due to the Insulation Test of wall bushing is subject to the impact of ground connection metope and setting angle, and electric pressure is higher, affects more remarkable.In order to study this impact, direct-current wall bushing test unit need possess metope simulation and angle regulating function.Yet existing direct-current wall bushing test unit middle sleeve is fixed on bracing frame, can not change sleeve pipe angle of inclination, cannot simulates more exactly practical operation situation and meet more voltage levels direct-current wall bushing testing requirements.
Utility model content
In order to address the above problem, the utility model provides a kind of ± 1100kV direct-current wall bushing insulation test device, can test the wall bushing under different angles state, and simple in structure, installing/dismounting process is convenient and safe, and is convenient to safeguard.
The purpose of this utility model is to adopt following technical proposals to realize:
The utility model provides a kind of ± 1100kV direct-current wall bushing insulation test device, comprise metal fixed head 2, simulation body of wall 3, bracing frame 4 and base 5, bracing frame 4 top verticals that are arranged on described base 5 are provided with simulation body of wall 3, described simulation body of wall 3 is provided with gap with bracing frame 4 junctions, described metal fixed head 2 is arranged in described gap, described metal fixed head 2 middle parts are provided with circular hole, direct-current wall bushing 1 is arranged in described circular hole by joint flange 6, its improvements are: between described metal fixed head 2 and simulation body of wall 3, be provided with angle regulator 7.
Wherein, described metal fixed head 2 is square, and both sides are provided with corresponding metal rotating shaft 8.
Wherein, described angle regulator 7 comprises U-shaped adjusting support 9 and U-shaped pedestal 10; Described U-shaped adjusting support 9 is connected with metal rotating shaft 8, and described U-shaped adjusting support 9 is vertically fixedly installed on bracing frame 4 tops by U-shaped pedestal 10.
Wherein, described U-shaped adjusting support 9 inside are provided with turbine worm speed reduction unit 13, and its one end is connected with the adjusting rocking bar 11 that is arranged on described U-shaped adjusting support 9 avris, and the other end is connected with described metal rotating shaft 8.
Wherein, on described U-shaped adjusting support 9 and with regulating rocking bar 11, with side position, be provided with angle indicating gauge 12, the pointer of described angle indicating gauge 12 is connected with metal rotating shaft 8.
Wherein, described turbine worm speed reduction unit 13 is provided with self-locking device, while regulating rocking bar 11 when stopping operating, automatically locks the angle of inclination of described direct-current wall bushing 1.
Wherein, the angle of inclination of described direct-current wall bushing 1 is between ± 75 °.
Wherein, the steelframe that support frame as described above 4 builds for tower-type structure.
Wherein, support frame as described above 4 is vertically fixedly installed on base 5.
Wherein, described simulation body of wall 3 is aluminum sheet metal.
Compared with prior art, the beneficial effect that the utility model reaches is:
First, this test unit is for the design of ± 1100kV direct-current wall bushing, meet ± 1100kV and following electric pressure wall bushing test unit insulating requirements, can analog DC wall bushing Electric Field Distribution during on-the-spot operation, efficiently solve large-sized DC wall bushing fixed support problem, thereby overcome the low and single deficiency of test capability of existing test unit trial voltage grade, the test of can carry out ± 1100kV direct-current wall bushing power-frequency withstand voltage, impulse withstand voltage test, the test of direct current withstand voltage, direct-current polarity backing propeller test, type approval test and the routine tests such as partial discharge quantity measurement, utilize this test unit also can carry out ± 1100kV direct-current wall bushing artificial pollution test simultaneously, all special tests such as even inhomogeneous salt fog test.
Secondly, this test unit can regulate by rotation the angle of inclination of the mode free adjustment sleeve pipe of rocking bar, overcome the deficiency that existing test unit cannot adjusting sleeve pipe angle of inclination, study different setting angles and provide possibility to the impact of sleeve pipe insulation characterisitic, thereby can grasp more all sidedly the insulation characterisitic of direct-current wall bushing.Meanwhile, during adjusting sleeve pipe vertical bank angle, can pass through angle indicating gauge reading angular intuitively, without loaded down with trivial details manual measurement, for test is provided convenience.
Finally, this test unit is simple in structure, and installing/dismounting process is convenient and safe, and is convenient to safeguard.
Accompanying drawing explanation
Fig. 1 is: the structural representation of provide ± 1100kV of the utility model direct-current wall bushing insulation test device;
Fig. 2 is: the angle regulator partial schematic diagram that the utility model provides;
Fig. 3 is: the angle regulator partial elevation view that the utility model provides;
Fig. 4 is: the angle regulator partial side view that the utility model provides;
Wherein: 1, direct-current wall bushing; 2, metal fixed head; 3, simulation body of wall; 4, bracing frame; 5, base; 6, joint flange; 7, angle regulator; 8, metal rotating shaft; 9, U-shaped adjusting support; 10, U-shaped pedestal; 11, regulate rocking bar; 12, angle indicating gauge; 13, turbine worm speed reduction unit.
Embodiment
For above-mentioned purpose of the present utility model, feature and advantage can be become apparent more, below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
Take ± 1100kV of the present embodiment direct-current wall bushing insulation test device is example, as shown in Figures 1 to 4, provide ± 1100kV of the present embodiment direct-current wall bushing insulation test device comprises: direct-current wall bushing 1, metal fixed head 2, simulation body of wall 3, bracing frame 4, base 5, joint flange 6, angle regulator 7, metal rotating shaft 8, U-shaped adjusting support 9, U-shaped pedestal 10, adjusting rocking bar 11, angle indicating gauge 12, turbine worm speed reduction unit 13.
Joint flange 6 is installed in direct-current wall bushing 1 outside, middle part, by joint flange 6, direct-current wall bushing 1 is installed in the circular hole at metal fixed head 2 middle parts.As shown in Figure 2, metal fixed head 2 left and right sides are respectively equipped with corresponding metal rotating shaft 8, and metal rotating shaft 8 is inserted in the U-shaped adjusting support 9 of angle regulators 7, thereby realize docking of direct-current wall bushing 1 and angle regulator 7.Angle regulator 7 comprises U-shaped adjusting support 9 and U-shaped pedestal 10, and U-shaped adjusting support 9 inside arrange turbine worm speed reduction unit 13, and as shown in Figure 3, one end of turbine worm speed reduction unit 13 is connected with regulating rocking bar 11, and the other end is connected with metal rotating shaft 8.By rotation, regulate rocking bar 11 to drive 13 actions of turbine worm speed reduction unit, make turbine worm speed reduction unit 13 drive direct-current wall bushing 1 to rotate by metal rotating shaft 8, the angular adjustment of direct-current wall bushing 1, between ± 75 °, has been realized in the angle of inclination of direct-current wall bushing 1.Simultaneously, turbine worm speed reduction unit 13 has auto-lock function, when direct-current wall bushing 1 rotates to certain angle, stops regulating the rotation of rocking bar 11,13 of turbine worm speed reduction units are automatically locked, thus fixing when realizing direct-current wall bushing 1 and rotating to certain angle.On U-shaped adjusting support 9, go back setting angle indicating gauge 12 simultaneously, as shown in Figure 4, the pointer of angle indicating gauge 12 inside is connected with metal rotating shaft 8, when direct-current wall bushing 1 is during in horizontality, pointer mediates level zero point, and when direct-current wall bushing 1 rotates by metal rotating shaft 8, metal rotating shaft 8 will drive pointer to rotate, therefore the angle that, direct-current wall bushing 1 rotates can be directly deflection angle by angle indicating gauge 12 pointers represent.
U-shaped adjusting support 9 is vertically fixed on the top of bracing frame 4 by U-shaped pedestal 10, simulation body of wall 3 is positioned at angle regulator 7 outsides and is also vertically fixed on the top of bracing frame 4, simulation body of wall 3 is aluminum sheet metal, and weight is lighter, facilitates the installation and removal of process of the test and later maintenance.Bracing frame 4 is built with tower-type structure by metal steel, has stronger stability and bearing capacity, and its bottom is vertically fixed on base for supporting 5.
This test unit is for the design of ± 1100kV direct-current wall bushing, the insulating property of package unit meet ± 1100kV and following grade wall bushing test unit insulating requirements, can effectively solve large-sized DC wall bushing fixed support problem, meet ± 1100kV direct-current wall bushing Insulation Test requirement simultaneously.On the other hand, this test unit possesses angle regulating function, can change sleeve pipe and ground connection body of wall angle, thereby simulates the impact of actual different installation on wall bushing Insulation Test, can grasp more all sidedly the insulation characterisitic of direct-current wall bushing.
Finally should be noted that: above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit, although the utility model is had been described in detail with reference to above-described embodiment, those of ordinary skill in the field are to be understood that: still can modify or be equal to replacement embodiment of the present utility model, and do not depart from any modification of the utility model spirit and scope or be equal to replacement, it all should be encompassed in the middle of claim scope of the present utility model.

Claims (10)

1. one kind ± 1100kV direct-current wall bushing insulation test device, comprise metal fixed head (2), simulation body of wall (3), bracing frame (4) and base (5), bracing frame (4) top vertical being arranged on described base (5) is provided with simulation body of wall (3), described simulation body of wall (3) is provided with gap with bracing frame (4) junction, described metal fixed head (2) is arranged in described gap, described metal fixed head (2) middle part is provided with circular hole, direct-current wall bushing (1) is arranged in described circular hole by joint flange (6), it is characterized in that: between described metal fixed head (2) and simulation body of wall (3), be provided with angle regulator (7).
2. as claimed in claim 1 ± 1100kV direct-current wall bushing insulation test device, is characterized in that, described metal fixed head (2) is square, and both sides are provided with corresponding metal rotating shaft (8).
3. as claimed in claim 2 ± 1100kV direct-current wall bushing insulation test device, is characterized in that, described angle regulator (7) comprises U-shaped adjusting support (9) and U-shaped pedestal (10); Described U-shaped adjusting support (9) is connected with metal rotating shaft (8), and described U-shaped adjusting support (9) is vertically fixedly installed on bracing frame (4) top by U-shaped pedestal (10).
4. as claimed in claim 3 ± 1100kV direct-current wall bushing insulation test device, it is characterized in that, described U-shaped adjusting support (9) inside is provided with turbine worm speed reduction unit (13), its one end is connected with the adjusting rocking bar (11) that is arranged on described U-shaped adjusting support (9) avris, and the other end is connected with described metal rotating shaft (8).
5. as claimed in claim 4 ± 1100kV direct-current wall bushing insulation test device, it is characterized in that, at described U-shaped adjusting support (9), above and with regulating rocking bar (11) with side position, be provided with angle indicating gauge (12), the pointer of described angle indicating gauge (12) is connected with metal rotating shaft (8).
6. as claimed in claim 5 ± 1100kV direct-current wall bushing insulation test device, it is characterized in that, described turbine worm speed reduction unit (13) is provided with self-locking device, while regulating rocking bar (11) when stopping operating, automatically locks the angle of inclination of described direct-current wall bushing (1).
7. as claimed in claim 1 ± 1100kV direct-current wall bushing insulation test device, is characterized in that, the angle of inclination of described direct-current wall bushing (1) is between ± 75 °.
8. as claimed in claim 1 ± 1100kV direct-current wall bushing insulation test device, is characterized in that, the steelframe that support frame as described above (4) builds for tower-type structure.
9. as claimed in claim 1 ± 1100kV direct-current wall bushing insulation test device, is characterized in that, support frame as described above (4) is vertically fixedly installed on base (5).
10. as claimed in claim 1 ± 1100kV direct-current wall bushing insulation test device, is characterized in that, described simulation body of wall (3) is aluminum sheet metal.
CN201420205041.XU 2014-04-25 2014-04-25 1100kV DC wall bushing insulation test device Expired - Lifetime CN203798840U (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106052999A (en) * 2016-07-12 2016-10-26 南方电网科学研究院有限责任公司 Extra-high voltage direct current composite wall bushing outer surface anti-seismic test device and test method
CN106052996A (en) * 2016-07-12 2016-10-26 南方电网科学研究院有限责任公司 Extra-high voltage direct current composite wall bushing anti-seismic test device and test method
CN106092727A (en) * 2016-07-12 2016-11-09 南方电网科学研究院有限责任公司 Extra-high voltage direct current composite wall bushing anti-seismic test sample and manufacturing method thereof
CN106226177A (en) * 2016-07-12 2016-12-14 南方电网科学研究院有限责任公司 Extra-high voltage direct current composite wall bushing internal and external anti-seismic test device and test method
CN108152134A (en) * 2017-12-12 2018-06-12 中国西电电气股份有限公司 A kind of wall bushing cantilever loading experimental rig and test method
CN111537767A (en) * 2020-04-23 2020-08-14 中国南方电网有限责任公司超高压输电公司检修试验中心 Extra-high voltage direct current wall bushing high voltage test supporting platform and using method
CN111830379A (en) * 2020-07-28 2020-10-27 云南电网有限责任公司电力科学研究院 Wall bushing insulation detection device

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106052999A (en) * 2016-07-12 2016-10-26 南方电网科学研究院有限责任公司 Extra-high voltage direct current composite wall bushing outer surface anti-seismic test device and test method
CN106052996A (en) * 2016-07-12 2016-10-26 南方电网科学研究院有限责任公司 Extra-high voltage direct current composite wall bushing anti-seismic test device and test method
CN106092727A (en) * 2016-07-12 2016-11-09 南方电网科学研究院有限责任公司 Extra-high voltage direct current composite wall bushing anti-seismic test sample and manufacturing method thereof
CN106226177A (en) * 2016-07-12 2016-12-14 南方电网科学研究院有限责任公司 Extra-high voltage direct current composite wall bushing internal and external anti-seismic test device and test method
CN106052999B (en) * 2016-07-12 2018-06-12 南方电网科学研究院有限责任公司 Extra-high voltage direct current composite wall bushing outer surface anti-seismic test device and test method
CN106052996B (en) * 2016-07-12 2018-06-19 南方电网科学研究院有限责任公司 Extra-high voltage direct current composite wall bushing anti-seismic test device and test method
CN106092727B (en) * 2016-07-12 2019-04-23 南方电网科学研究院有限责任公司 Extra-high voltage direct current composite wall bushing anti-seismic test sample and manufacturing method thereof
CN106226177B (en) * 2016-07-12 2023-04-07 南方电网科学研究院有限责任公司 Extra-high voltage direct current composite wall bushing internal and external anti-seismic testing device and testing method
CN108152134A (en) * 2017-12-12 2018-06-12 中国西电电气股份有限公司 A kind of wall bushing cantilever loading experimental rig and test method
CN111537767A (en) * 2020-04-23 2020-08-14 中国南方电网有限责任公司超高压输电公司检修试验中心 Extra-high voltage direct current wall bushing high voltage test supporting platform and using method
CN111830379A (en) * 2020-07-28 2020-10-27 云南电网有限责任公司电力科学研究院 Wall bushing insulation detection device

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C14 Grant of patent or utility model
GR01 Patent grant
CP01 Change in the name or title of a patent holder

Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing

Co-patentee after: CHINA ELECTRIC POWER RESEARCH INSTITUTE Co.,Ltd.

Patentee after: State Grid Corporation of China

Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing

Co-patentee before: China Electric Power Research Institute

Patentee before: State Grid Corporation of China

CP01 Change in the name or title of a patent holder
TR01 Transfer of patent right

Effective date of registration: 20180206

Address after: 100192 Beijing city Haidian District Qinghe small Camp Road No. 15

Co-patentee after: State Grid Corporation of China

Patentee after: CHINA ELECTRIC POWER RESEARCH INSTITUTE Co.,Ltd.

Co-patentee after: STATE GRID ZHEJIANG ELECTRIC POWER Co.,Ltd.

Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing

Co-patentee before: CHINA ELECTRIC POWER RESEARCH INSTITUTE Co.,Ltd.

Patentee before: State Grid Corporation of China

TR01 Transfer of patent right
CX01 Expiry of patent term

Granted publication date: 20140827

CX01 Expiry of patent term