CN103293474B - Oil immersed on-load capacity regulating switch electrical endurance testing method in air - Google Patents
Oil immersed on-load capacity regulating switch electrical endurance testing method in air Download PDFInfo
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- CN103293474B CN103293474B CN201310230065.0A CN201310230065A CN103293474B CN 103293474 B CN103293474 B CN 103293474B CN 201310230065 A CN201310230065 A CN 201310230065A CN 103293474 B CN103293474 B CN 103293474B
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Abstract
An oil immersed on-load capacity regulating switch electrical endurance testing method comprises the steps of firstly connecting an insulation enhancement device between a high-voltage phase contact of an on-load capacity regulating switch and a contact layer, and enlarging the insulation distance of a high-voltage phase; and connecting the on-load capacity regulating switch with a testing transformer and testing according to procedures. The oil immersed on-load capacity regulating switch electrical endurance testing method improves the insulating strength of an outer casing of an insulation oil tank of the oil immersed on-load capacity regulating switch, achieves the aim of performing an electrical endurance test of the on-load capacity regulating switch in air, facilitates electrical wiring during testing and the observation on a testing process, and improves testing efficiency and quality.
Description
Technical field
The present invention relates to a kind of oil-immersed on-load capacitance-adjustable switch Method of Electrical Durability Test for Electrical Apparatus, especially a kind of loaded capacity-regulated switch carries out the method for electrical endurance test in atmosphere.
Background technology
Between the high pressure phase of loaded capacity-regulated switch, high pressure over the ground, high pressure is considered by insulation distance design in transformer oil the insulation distance of low pressure, that entirety is immersed in and is equipped with in the fuel tank of transformer oil during current loaded capacity-regulated switch electrical endurance test, because electrical connection wire during test is more, wiring is very inconvenient, also viewing test state is at any time unfavorable in process of the test, electrical endurance test is done as loaded capacity-regulated switch is placed in air, electrical wiring can be made convenient, be easy to observe in test, but the current various insulation distance of loaded capacity-regulated switch can not meet the requirement carrying out electrical endurance test in air.
Summary of the invention
The object of the invention is, in order to make loaded capacity-regulated switch electrical endurance test carry out in atmosphere, providing a kind of loaded capacity-regulated switch to carry out the method for electrical endurance test in atmosphere, to reduce test difficulty, improve test efficiency and quality.
For achieving the above object, the present invention adopts following proposal:
Before the electrical endurance test of oil-immersed on-load capacitance-adjustable switch, first between loaded capacity-regulated switch high-pressure phase contact and contact layer, insulation intensifier is connected, increase the insulation distance of high pressure phase, described insulation intensifier comprises the arc-shaped partition corresponding with loaded capacity-regulated switch oil drum housing profile and web joint, support stick, connecting pipe and insulation sleeve, wherein arc-shaped partition is by support stick and web joint between two between the symmetrical oil drum housing exterior high pressure phase contact layer being fixed on loaded capacity-regulated switch, connecting pipe and insulation sleeve are sleeved on outside loaded capacity-regulated switch high-pressure contact successively, described arc-shaped partition, web joint, support stick and insulation sleeve all make of insulating material.Then be connected with testing transformer, determine that connection rearward, can carry out electrical endurance test.
Adopt such scheme, oil-immersed on-load capacitance-adjustable switch insulation oil drum casing insulation intensity can be improved, realize the object that loaded capacity-regulated switch carries out electrical endurance test in atmosphere, electrical wiring during convenient test, be convenient to observe process of the test, improve test efficiency and security.
Accompanying drawing explanation
Fig. 1 is the structural representation that the insulation intensifier used in oil-immersed on-load capacitance-adjustable switch Method of Electrical Durability Test for Electrical Apparatus of the present invention is connected with switch.
Fig. 2 is that Fig. 1 is along A-A face cut-open view.
In figure: 1-arc-shaped partition, 2-web joint, 3-high-voltage contact, 4-coupling bolt, 5-support stick, 6-connecting pipe, 7-insulation sleeve, 8-screw rod, 9-nut, 10-packing ring.
Embodiment
Below in conjunction with accompanying drawing, the present invention is elaborated:
Oil-immersed on-load capacitance-adjustable switch Method of Electrical Durability Test for Electrical Apparatus of the present invention, first connects insulation intensifier, increases the insulation distance of high pressure phase, be then connected with testing transformer, test by code.Described insulation intensifier, comprise corresponding arc-shaped partition 1 outer with loaded capacity-regulated switch oil drum and web joint 2, support stick 5, connecting pipe 6 and insulation sleeve 7, wherein arc-shaped partition 1 is semicircle, by web joint 2, coupling bolt 4, support stick 5 connects, between two between the symmetrical oil drum housing exterior high pressure phase contact layer being installed on switch, the two symmetrical arc-shaped partition 1 termination web joints 4 of every layer are fixed, connecting pipe 6 and insulation sleeve 7 are sleeved on outside loaded capacity-regulated switch high-pressure phase contact successively, wherein arc-shaped partition 1 insulating sheet material presses the processing of switch oil drum outer sheath diameters, guarantee arc-shaped partition length, width should be able to separate each phase high-voltage connection contact completely, contact is made to have enough insulating safety distances in atmosphere, with insulation bar process support rod 5 on request, by this support stick 5, arc-shaped partition 1 serial connection is fixed between the outer high-voltage contact layer of switch oil drum, with isolation with to strengthen each phase contact alternate, the aerial insulation distance such as relatively, as required by insulation sleeve 7 and connecting pipe 6 screw rod 8, nut 9 and packing ring 10 are connected to outside capacity-regulation switch high-voltage phase contact, with isolation also reinforced insulation, in addition for improve dielectric strength further, gap between each layer arc-shaped partition and switch oil drum, gap filling between insulation sleeve and switch oil drum insulate silica gel.
After the aerial electrical endurance test of loaded capacity-regulated switch completes, remove described insulation intensifier, repeat said process, complete each loaded capacity-regulated switch electrical endurance test.
Claims (3)
1. an oil-immersed on-load capacitance-adjustable switch Method of Electrical Durability Test for Electrical Apparatus, it is characterized in that: the method step is: before being connected energizing test with transformer, first between loaded capacity-regulated switch high-pressure phase contact and contact layer, insulation intensifier is connected, to increase the insulation distance of high pressure phase, described insulation intensifier comprises corresponding arc-shaped partition (1) outer with loaded capacity-regulated switch oil drum and web joint (2), support stick (5), connecting pipe (6) and insulation sleeve (7), wherein arc-shaped partition (1) by web joint (2) and support stick (5) between two symmetry be fixed between loaded capacity-regulated switch oil drum external high pressure contact layer, connecting pipe (6) and insulation sleeve (7) are sleeved on loaded capacity-regulated switch high-pressure contact (3) outward successively, described arc-shaped partition (1), web joint (2), coupling bolt (4), support stick (5) and insulation sleeve (7) all make of insulating material, the oil-immersed on-load capacitance-adjustable switch completing above-mentioned connection is connected with testing transformer again, determine to connect reliably and carry out electrical endurance test.
2. oil-immersed on-load capacitance-adjustable switch Method of Electrical Durability Test for Electrical Apparatus as claimed in claim 1, is characterized in that: be filled with insulation silica gel between described arc-shaped partition (1) and the outer gap of capacitance switch oil drum, between insulation sleeve (7) and the outer gap of capacitance switch oil drum.
3. oil-immersed on-load capacitance-adjustable switch Method of Electrical Durability Test for Electrical Apparatus as claimed in claim 1, is characterized in that: described connecting pipe (6) and insulation sleeve (7) are fixed on loaded capacity-regulated switch high-pressure contact (3) outward by screw rod (8), nut (9) and packing ring (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310230065.0A CN103293474B (en) | 2013-06-09 | 2013-06-09 | Oil immersed on-load capacity regulating switch electrical endurance testing method in air |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310230065.0A CN103293474B (en) | 2013-06-09 | 2013-06-09 | Oil immersed on-load capacity regulating switch electrical endurance testing method in air |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103293474A CN103293474A (en) | 2013-09-11 |
| CN103293474B true CN103293474B (en) | 2015-07-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310230065.0A Expired - Fee Related CN103293474B (en) | 2013-06-09 | 2013-06-09 | Oil immersed on-load capacity regulating switch electrical endurance testing method in air |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108389700A (en) * | 2018-05-18 | 2018-08-10 | 吴江远洋电气有限责任公司 | A kind of combined insulation device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5737274A (en) * | 1980-08-15 | 1982-03-01 | Hitachi Ltd | Insulation testing apparatus for bushing |
| CN101425371A (en) * | 2008-08-08 | 2009-05-06 | 海南金盘电气有限公司 | Inter-phase splitter plate construction for dry transformer |
| CN202003812U (en) * | 2010-12-22 | 2011-10-05 | 保定天威集团有限公司 | High-resistance on-load voltage-regulating isolation transformer |
| CN202171994U (en) * | 2011-07-13 | 2012-03-21 | 山东达驰电气有限公司 | Temporary hoisting seat for transformer |
| CN102565636A (en) * | 2011-11-15 | 2012-07-11 | 国网电力科学研究院 | Ultrahigh-voltage oil-SF6 sleeve test device |
-
2013
- 2013-06-09 CN CN201310230065.0A patent/CN103293474B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5737274A (en) * | 1980-08-15 | 1982-03-01 | Hitachi Ltd | Insulation testing apparatus for bushing |
| CN101425371A (en) * | 2008-08-08 | 2009-05-06 | 海南金盘电气有限公司 | Inter-phase splitter plate construction for dry transformer |
| CN202003812U (en) * | 2010-12-22 | 2011-10-05 | 保定天威集团有限公司 | High-resistance on-load voltage-regulating isolation transformer |
| CN202171994U (en) * | 2011-07-13 | 2012-03-21 | 山东达驰电气有限公司 | Temporary hoisting seat for transformer |
| CN102565636A (en) * | 2011-11-15 | 2012-07-11 | 国网电力科学研究院 | Ultrahigh-voltage oil-SF6 sleeve test device |
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| CN103293474A (en) | 2013-09-11 |
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