CN203894368U - Arc discharge monitoring AC voltage withstand test device - Google Patents

Arc discharge monitoring AC voltage withstand test device Download PDF

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Publication number
CN203894368U
CN203894368U CN201420252670.8U CN201420252670U CN203894368U CN 203894368 U CN203894368 U CN 203894368U CN 201420252670 U CN201420252670 U CN 201420252670U CN 203894368 U CN203894368 U CN 203894368U
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China
Prior art keywords
transverse frame
crossbeam
insulating bar
arc discharge
metallic channel
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CN201420252670.8U
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Chinese (zh)
Inventor
冶海平
贾忠军
央青卓玛
张庆琴
马育林
孙保磊
张涵如
李永胜
方彬
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HAIDONG POWER SUPPLY COMPANY STATE GRID QINGHAI ELECTRIC POWER Co Ltd
State Grid Corp of China SGCC
State Grid Qinghai Electric Power Co Ltd
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HAIDONG POWER SUPPLY COMPANY STATE GRID QINGHAI ELECTRIC POWER Co Ltd
State Grid Corp of China SGCC
State Grid Qinghai Electric Power Co Ltd
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Priority to CN201420252670.8U priority Critical patent/CN203894368U/en
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Abstract

The utility model relates to the technical field of power supply, especially relates to an arc discharge type AC voltage withstand test device for insulating rods, and the device can efficiently test insulation status of insulating rods. Four epoxy resin insulation columns, four corners of an upper transverse frame, and four corners of a lower transverse frame are fixed by block pins and bolts to form an epoxy resin insulation support 7. The tail end of the upper transverse frame is provided with a rear crossbeam. Opening circularity metallic channels are arranged in the rear crossbeam. A front crossbeam is arranged on the head end of the upper transverse frame. Opening circularity metallic channels are arranged in the front crossbeam. An upper crossbeam is arranged above the upper transverse frame part between the two front columns. A discharging gap is arranged between the upper crossbeam and the front frame of the upper transverse frame. Voltage adding poles are arranged on the upper crossbeam. The novel detection support can efficiently improve work efficiency, realize judging a detection result by using interval luminous intensity and leakage current threshold values, can satisfy dielectric strength requirement of a detection test, is convenient and flexible in use on site, and is safe and reliable.

Description

A kind of alternating-current voltage resistance test device of arc discharge monitoring
Technical field
The utility model relates to power supply technique field, specifically relates to a kind of arc discharge formula insulating bar alternating-current voltage resistance test device that effectively can examine insulating bar insulation status.
Background technology
The ac voltage withstanding that current city in all parts of the country electric company is generally used simple and easy withstand voltage support to carry out insulating bar detects test, its method is wound around the electrode detection of pressurizeing by some insulating bars two ends are in parallel for the method that is wound around by earth lead, and whether its method detection efficiency insulation status low, that can not effectively intuitively locate tested measuring staff is good.
The AC voltage withstand test of insulating bar generally adopts easy insulating support to keep over the ground insulation at present, with aluminium foil or bare copper wire respectively the two ends that are wrapped in insulating bar in parallel as earthing pole and the pressurization utmost point, insulating bar is placed on insulating support, with the AC testing transformer detection of pressurizeing.The problem that this detection method exists has following 3 points, one: with aluminium foil or naked copper, lead banding insulation bar consuming time many, and inefficiency, its electrode loose contact easily causes electric field inhomogeneous.Its two: the method can only detect total leakage current of some parallel branches and can not detect the branch's leakage current in each insulating bar.Its three: the method to test findings just by puncturing, smolder, the phenomenon such as heating carries out controversial issue, its diagnosis gimmick tradition, human factor easily causes erroneous judgement, the problem such as fail to judge.
Summary of the invention
The technical problems to be solved in the utility model is the deficiency existing for prior art, and a kind of arc discharge formula insulating bar alternating-current voltage resistance test device that effectively can examine insulating bar insulation status is provided.
A kind of arc discharge formula of the utility model insulating bar alternating-current voltage resistance test device is achieved by following technical proposals: a kind of alternating-current voltage resistance test device of arc discharge monitoring comprises hookup, insulating bar, the pressurization utmost point, insulating press boards, fastening bolt, epoxy resins insulation support, earthing pole, described epoxy resins insulation support 7 adopts bayonet lock by four angles of 4 epoxy resins insulation columns and upper transverse frame and lower transverse frame, bolt fixedly forms, upper transverse frame tail end arranges rear cross beam, opening ring-type metallic channel is set on rear cross beam, upper transverse frame head end arranges front beam, opening ring-type metallic channel is set on front beam, between 2 front columns, upper transverse frame top arranges entablature, between entablature and the front bezel of upper transverse frame, discharging gap is set, the pressurization utmost point is set on entablature, described insulating bar head end is connected in the opening ring-type metallic channel on front beam, and the tail end of insulating bar is connected in the opening ring-type metallic channel on rear cross beam.
A kind of arc discharge formula of the utility model insulating bar alternating-current voltage resistance test device has following beneficial effect compared with prior art: a kind of arc discharge formula of the utility model insulating bar alternating-current voltage resistance test device is made insulating support with epoxy resin, the head end mounting strap discharging gap of support and the pressurization utmost point and being connected by copper conductor with the opening ring-type metallic channel being arranged on front beam, metallic channel and discharging gap are fixed on bakelite, its top and the bottom are fixed with nut or bayonet lock and step up insulating bar head end, during pressurization, little gap is breakdown, upper and lower position, gap equipotential, in gap due to the difference of Leakage Current size arc discharge to obtain intensity different, its gap discharge of insulating bar that insulate good is fainter, whether there is stronger arc discharge phenomenon in insulation defectiveness or its gap of insulating bar making moist, good from visually just judging rapidly insulation status according to the power of gap arc discharge.
The tail end of support is installed mutually the tail end that blocks insulating bar with support insulation tool some opening ring-type metallic channels springy, opening ring-type metallic channel is connected with earthing pole and the microampere meter of connecting respectively, the leakage current flowing through in every insulating bar while pressurizeing to detect, and judge that according to the size of current value whether insulating bar is qualified.
The utility model Bracket for Inspection can effectively be increased work efficiency, and realization can judge testing result with interval luminous intensity and leakage current threshold values.By practical application, make the testing requirements of insulating bar AC voltage withstand test.This support can meet to detect tests dielectric strength requirement, and on-the-spot easy to use and flexible is safe and reliable.
Accompanying drawing explanation
A kind of arc discharge formula of the utility model insulating bar alternating-current voltage resistance test device has following accompanying drawing:
Fig. 1 is prior art insulating bar AC voltage withstand test elementary diagram;
Fig. 2 is a kind of arc discharge formula of the utility model insulating bar alternating-current voltage resistance test device insulating bar AC voltage withstand test elementary diagram;
Fig. 3 is that a kind of arc discharge formula of the utility model insulating bar alternating-current voltage resistance test device insulating bar head end fixes to clamp structural representation on support;
Fig. 4 is that a kind of arc discharge formula of the utility model insulating bar alternating-current voltage resistance test device insulating bar tail end fixes to clamp structural representation on support;
Fig. 5 is a kind of arc discharge formula of the utility model insulating bar alternating-current voltage resistance test device plan structure schematic diagram;
Fig. 6 is a kind of arc discharge formula of the utility model insulating bar alternating-current voltage resistance test device mounting structure schematic diagram.
Wherein 1, hookup; 2, discharging gap; 3, insulating bar; 4, the pressurization utmost point; 5, insulating press boards; 6, fastening bolt; 7, epoxy resins insulation support; 8, earthing pole; 9, microampere meter; 10, column; 11, upper transverse frame; 12, rear cross beam; 13, front beam; 14, lower transverse frame; 15, copper conductor; 16, opening ring-type metallic channel; 17, entablature; 18, bayonet lock.
Embodiment
Below in conjunction with drawings and Examples, a kind of arc discharge formula of the utility model insulating bar alternating-current voltage resistance test device technical scheme is further described.
As Figure 2-Figure 5,
The alternating-current voltage resistance test device of a kind of arc discharge monitoring of the utility model comprises hookup 1, insulating bar 3, the pressurization utmost point 4, insulating press boards 5, fastening bolt 6, epoxy resins insulation support 7, earthing pole 8, described epoxy resins insulation support 7 adopts bayonet lock 18 by 4 epoxy resins insulation columns 10 and four angles of upper transverse frame 11 and lower transverse frame 14, bolt fixedly forms, upper transverse frame 11 tail ends arrange rear cross beam 12, opening ring-type metallic channel 16 is set on rear cross beam 12, upper transverse frame 11 head ends arrange front beam 13, opening ring-type metallic channel 16 is set on front beam 13, between 2 front columns 10, upper transverse frame 11 tops arrange entablature 17, discharging gap 2 is set between the front bezel of entablature 17 and upper transverse frame 11, the pressurization utmost point 4 is set on entablature 17, described insulating bar 3 head ends are connected in the opening ring-type metallic channel 16 on front beam 13, and the tail end of insulating bar 3 is connected in the opening ring-type metallic channel 16 on rear cross beam 12.
Opening ring-type metallic channel 16 on described rear cross beam 12 is electrically connected to earthing pole 8, earthing pole 8 output terminal series connection microampere meters 9, and microampere meter 9 output terminals are connected with the negative pole of hookup 1.
Opening ring-type metallic channel 16 on described front beam 13 is electrically connected to and is connected with the output head anode of hookup 1 with the pressurization utmost point 4 being arranged on entablature 17 by the copper conductor 15 being arranged between front beam 13 and the front bezel of upper transverse frame 11.
Embodiment 1.
The alternating-current voltage resistance test device of a kind of arc discharge monitoring of the utility model comprises hookup 1, insulating bar 3, the pressurization utmost point 4, insulating press boards 5, fastening bolt 6, epoxy resins insulation support 7, earthing pole 8, described epoxy resins insulation support 7 adopts bayonet lock 18 by 4 epoxy resins insulation columns 10 and four angles of upper transverse frame 11 and lower transverse frame 14, bolt fixedly forms, upper transverse frame 11 tail ends arrange rear cross beam 12, opening ring-type metallic channel 16 is set on rear cross beam 12, upper transverse frame 11 head ends arrange front beam 13, opening ring-type metallic channel 16 is set on front beam 13, between 2 front columns 10, upper transverse frame 11 tops arrange entablature 17, discharging gap 2 is set between the front bezel of entablature 17 and upper transverse frame 11, the pressurization utmost point 4 is set on entablature 17, described insulating bar 3 head ends are connected in the opening ring-type metallic channel 16 on front beam 13, and the tail end of insulating bar 3 is connected in the opening ring-type metallic channel 16 on rear cross beam 12.
16 at least 4 of opening ring-type metallic channels are set on described front beam 13 and rear cross beam 12, can also need to arrange a plurality of according to test.The copper conductor 15 being electrically connected to opening ring-type metallic channel 16 on front beam 13 is set between the front bezel of front beam 13 and upper transverse frame 11, described be arranged on discharging gap 2 between upper transverse frame 11 and entablature 17 and make and stage casing disconnection certain distance is discharging gap for copper rod.
As shown in Figure 3-Figure 5.
Opening ring-type metallic channel 16 on described rear cross beam 12 is electrically connected to earthing pole 8, earthing pole 8 output terminal series connection microampere meters 9, and microampere meter 9 output terminals are connected with the negative pole of hookup 1.
Opening ring-type metallic channel 16 on described front beam 13 is electrically connected to and is connected with the output head anode of hookup 1 with the pressurization utmost point 4 being arranged on entablature 17 by the copper conductor 15 being arranged between front beam 13 and the front bezel of upper transverse frame 11.As shown in Figure 2.
For overcoming the above problems, the utility model provides a kind of efficient, science, effective novel ac voltage withstanding support, and a kind of arc discharge formula of the utility model insulating bar AC voltage withstand test elementary diagram as shown in Figure 2.
The utility model device is made insulating support with epoxy resin, first section of installation of support is with semicircle metallic channel 16 and the pressurization utmost point 4 of discharging gap, metallic channel 16 and discharging gap 2 are fixed on bakelite, its top and the bottom are fixed with nut or bayonet lock and step up insulating bar head end, as shown in Figure 3, during pressurization, little gap is breakdown, upper and lower position, gap equipotential; In gap due to the difference of Leakage Current size arc discharge to obtain intensity different, its gap discharge of insulating bar that insulate good is fainter, whether there is stronger arc discharge phenomenon in insulation defectiveness or its gap of insulating bar making moist, good from visually just judging rapidly insulation status according to the power of gap arc discharge.
The tail end of support is installed mutually clearance for insulation tool some metal earthing poles springy, with earthing pole, block the tail end of insulating bar, the microampere meter of simultaneously connecting respectively on earthing pole, the leakage current flowing through in every insulating bar while pressurizeing to detect, judge that whether insulating bar is qualified as Figure 3-Figure 4, and according to the size of current value.
This Bracket for Inspection can effectively be increased work efficiency, and realization can judge testing result with interval luminous intensity and leakage current threshold values.By practical application, make the testing requirements of insulating bar AC voltage withstand test.This support can meet to detect tests dielectric strength requirement, and on-the-spot easy to use and flexible is safe and reliable.

Claims (3)

1. the alternating-current voltage resistance test device of arc discharge monitoring, comprise hookup (1), insulating bar (3), the pressurization utmost point (4), insulating press boards (5), fastening bolt (6), epoxy resins insulation support (7), earthing pole (8), it is characterized in that: described epoxy resins insulation support (7) adopts bayonet lock (18) by 4 epoxy resins insulation columns (10) and four angles of upper transverse frame (11) and lower transverse frame (14), bolt fixedly forms, upper transverse frame (11) tail end arranges rear cross beam (12), opening ring-type metallic channel (16) is set on rear cross beam (12), upper transverse frame (11) head end arranges front beam (13), opening ring-type metallic channel (16) is set on front beam (13), between 2 front columns (10), upper transverse frame (11) top arranges entablature (17), discharging gap (2) is set between the front bezel of entablature (17) and upper transverse frame (11), the pressurization utmost point (4) is set on entablature (17), described insulating bar (3) head end is connected in the opening ring-type metallic channel (16) on front beam (13), and the tail end of insulating bar (3) is connected in the opening ring-type metallic channel (16) on rear cross beam (12).
2. the alternating-current voltage resistance test device that arc discharge according to claim 1 is monitored, it is characterized in that: the opening ring-type metallic channel (16) on described rear cross beam (12) is electrically connected to earthing pole (8), earthing pole (8) output terminal series connection microampere meter (9), microampere meter (9) output terminal is connected with the negative pole of hookup (1).
3. the alternating-current voltage resistance test device of arc discharge according to claim 1 monitoring, its feature in: the opening ring-type metallic channel (16) on described front beam (13) by being arranged on copper conductor (15) between front beam (13) and the front bezel of upper transverse frame (11) and being arranged on the pressurization utmost point (4) electrical connection on entablature (17) and being connected with the output head anode of hookup (1).
CN201420252670.8U 2014-05-16 2014-05-16 Arc discharge monitoring AC voltage withstand test device Active CN203894368U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420252670.8U CN203894368U (en) 2014-05-16 2014-05-16 Arc discharge monitoring AC voltage withstand test device

Publications (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104483603A (en) * 2014-12-02 2015-04-01 国网青海省电力公司海东供电公司 Withstand voltage detecting method of insulating rod

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104483603A (en) * 2014-12-02 2015-04-01 国网青海省电力公司海东供电公司 Withstand voltage detecting method of insulating rod

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