CN103645368B - The remodeling method of spark gap on-line monitoring type capacitance type potential transformer - Google Patents
The remodeling method of spark gap on-line monitoring type capacitance type potential transformer Download PDFInfo
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- CN103645368B CN103645368B CN201310537873.1A CN201310537873A CN103645368B CN 103645368 B CN103645368 B CN 103645368B CN 201310537873 A CN201310537873 A CN 201310537873A CN 103645368 B CN103645368 B CN 103645368B
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Abstract
The invention discloses the remodeling method of a kind of spark gap on-line monitoring type capacitance type potential transformer, by the ground connection of spark gap in conventional condenser voltage transformer fuel tank is opened, the earth terminal of spark gap is drawn fuel tank by drawing outward screw rod, and be connected with the spark gap on-line monitoring table being arranged on outside fuel tank, thus have effectively achieved the on-line monitoring to capacitance type potential transformer internal lightning arrester conduction current, and it is very easy to spark gap or transformer carry out test maintenance and failure judgement, the trouble of capacitance type potential transformer all must be taken apart when avoiding maintenance every time and test, reach effect once and for all.
Description
Technical field
The present invention relates to capacitance type potential transformer structure-design technique field, particularly relate to the remodeling method of a kind of spark gap on-line monitoring type capacitance type potential transformer.
Background technology
At present, 550kv, 220kv, 110kv and 35kv capacitance type potential transformer is primary is applied to circuit or busbar voltage monitoring, it is sealed in fuel tank internal after spark gap within conventional condenser voltage transformer is in parallel with electromagnet portion, as shown in Figure 1 and Figure 2, spark gap is connected between transformer high-pressure side and ground all the time, either new clothes, routine test and trouble shoot, all spark gap or transformer cannot be tested, its deterioration cannot be found, damage, there is examination blind area, it is impossible to embody the quality of spark gap performance intuitively.If needing breakdown judge, Defect Search, it is necessary to open spark gap and electromagnetic transformer part line after capacitance type potential transformer is disintegrated, it could be tested.
Summary of the invention
It is an object of the invention to aim to provide the remodeling method of a kind of spark gap on-line monitoring type capacitance type potential transformer, the method will draw capacitance type potential transformer fuel tank outside arrester ground end, and an external spark gap on-line monitoring table, not only it is very easy to spark gap or transformer carry out test maintenance, need not take apart again tank envelope, and have effectively achieved the directly monitoring to capacitance type potential transformer internal lightning arrester conduction current.
Be the technical scheme is that the remodeling method of a kind of spark gap on-line monitoring type capacitance type potential transformer by realizing the purpose of the present invention, comprised the steps:
(1), spark gap lower end ground connection in capacitance type potential transformer is opened, and carry out insulating supporting with insulating part；
(2), selecting appropriate location on the downside of capacitance type potential transformer oil ga(u)ge, hole and arrange the outer bolt that draws, described outer drawing arranges insulated enclosure mechanism between bolt and capacitance type potential transformer fuel tank；
(3), by arrester ground end in capacitance type potential transformer with draw outward bolt and be connected；
(4), spark gap on-line monitoring conduction current table is fixed on capacitance type potential transformer base；
(5), by spark gap on-line monitoring conduction current table one end with draw outward bolt and be connected, other end ground connection.
Described insulating part is epoxy resins insulation part.
Described insulated enclosure mechanism is insulation rubber pad.
The remodeling method of the spark gap on-line monitoring type capacitance type potential transformer of the present invention be we be to realize on-line monitoring to capacitance type potential transformer internal lightning arrester conduction current, propose through test many times and experiment in conjunction with years'experiences, by the ground connection of spark gap in conventional condenser voltage transformer fuel tank is opened, the earth terminal of spark gap is drawn fuel tank by drawing outward screw rod, and be connected with the spark gap on-line monitoring table being arranged on outside fuel tank, thus have effectively achieved the on-line monitoring to capacitance type potential transformer internal lightning arrester conduction current, and it is very easy to spark gap or transformer carry out test maintenance and failure judgement, the trouble of capacitance type potential transformer all must be taken apart when avoiding maintenance every time and test, reach effect once and for all；By arranging insulating part in spark gap lower end, efficiently avoid the spark gap generation at fuel tank internal Grounding, ensure the accuracy of spark gap on-line monitoring conduction current table test；By drawing outside, insulated enclosure mechanism is set between bolt and capacitance type potential transformer fuel tank, being dielectrically separated between bolt and fuel tank is drawn outside not only achieving, ensure spark gap on-line monitoring conduction current table test accuracy, and effectively ensure the generation of fuel tank leakage of oil situation.The present invention is capacitance type potential transformer internal lightning arrester and the regular maintenance of transformer, breakdown judge, and the on-line monitoring of spark gap performance is provided a kind of efficiency easy and simple to handle low cost high, safe and reliable and the remodeling method put things right once and for all, after transformation, monitoring effect is good, and regular maintenance, breakdown judge efficiency are high.
Accompanying drawing explanation
Below in conjunction with the accompanying drawings the present invention is described further
Fig. 1 is the structural representation before the present invention transforms；
Fig. 2 is the electrical schematic diagram before the present invention transforms；
Fig. 3 is the improved structural representation of the present invention；
Fig. 4 is the improved electrical schematic diagram of the present invention.
Detailed description of the invention
As shown in Figure 3, Figure 4: the remodeling method of the spark gap on-line monitoring type capacitance type potential transformer of the present invention, comprise the steps:
(1), spark gap in capacitance type potential transformer 6 lower end ground connection is opened, and carry out insulating supporting with insulating part 7；
(2), selecting appropriate location on the downside of capacitance type potential transformer oil ga(u)ge 5, hole and arrange the outer bolt 3 that draws, described outer drawing arranges insulated enclosure mechanism between bolt 3 and capacitance type potential transformer fuel tank 4；
(3), spark gap in capacitance type potential transformer 6 earth terminal is connected with drawing outward bolt 3；
(4), spark gap on-line monitoring conduction current table 2 is fixed on capacitance type potential transformer base 1；
(5), spark gap on-line monitoring conduction current table 2 one end is connected with drawing outward bolt 3, other end ground connection.
Further, as the preferred version of the present invention: described insulating part 7 is epoxy resins insulation part.Described insulated enclosure mechanism is insulation rubber pad.
The present invention is by drawing capacitance type potential transformer fuel tank outside arrester ground end, and an external spark gap on-line monitoring table, have effectively achieved the directly monitoring to capacitance type potential transformer internal lightning arrester conduction current, and it is very easy to spark gap or transformer carry out test maintenance, need not take apart again tank envelope, reach effect once and for all.Compare time of traditional structure upkeep operation and breakdown judge, needs the work that the time just can complete, after transformation, it is only necessary to half an hour can complete before transformation.
Below in conjunction with embodiment, the present invention is further described:
Embodiment one
On June 20th, 2013, the transformation to certain 35KV transformer substation capacitor formula voltage transformer, comprise the following steps:
(1), spark gap lower end ground connection in capacitance type potential transformer is opened, and carry out insulating supporting with epoxy resins insulation part；
(2), select on the downside of capacitance type potential transformer oil ga(u)ge near tank bottoms position, bore the circular hole of an a diameter of 10mm, bolt is drawn outside insulation rubber ring pad being set in circular hole and installing, inside and outside fuel tank, draw the most sheathed valve rubber, tabletting on bolt the most outside, and it is fixing to carry out compressing sealing by clamp nut；
(3), in capacitance type potential transformer fuel tank, by arrester ground end with draw outward bolt and be connected；
(4), outside capacitance type potential transformer fuel tank, spark gap on-line monitoring conduction current table is fixed on capacitance type potential transformer base；
(5), outside capacitance type potential transformer fuel tank, by spark gap on-line monitoring conduction current table one end with draw outward bolt and be connected, other end ground connection.
Embodiment two
On July 18th, 2013, the transformation to certain 110KV transformer substation capacitor formula voltage transformer, comprise the following steps:
(1), spark gap lower end ground connection in capacitance type potential transformer is opened, and carry out insulating supporting with epoxy resins insulation part；
(2), select on the downside of capacitance type potential transformer oil ga(u)ge near tank bottoms position, bore the through hole of two a diameter of 10mm, between through hole, nearest spacing is 30cm, in two through holes, it is respectively provided with insulation rubber ring pad and draws outward bolt, draw difference the most sheathed valve rubber, tabletting inside and outside bolt fuel tank outside, and be fixed by clamp nut, seal it addition, externally draw between bolt and fuel tank with electric insulating sealant；
(3), in capacitance type potential transformer fuel tank, arrester ground end is drawn bolt outward with one of them and is connected, and carry out ground connection to drawing bolt outside another；
(4), outside capacitance type potential transformer fuel tank, spark gap on-line monitoring conduction current table is fixed on capacitance type potential transformer base；
(5), outside capacitance type potential transformer fuel tank, bolt is drawn outward with two respectively in spark gap on-line monitoring conduction current table two ends and connects one to one.
Embodiment three
On JIUYUE 12nd, 2013, the transformation to certain 110KV transformer substation capacitor formula voltage transformer, comprise the following steps:
(1), spark gap lower end ground connection in capacitance type potential transformer is opened, and carry out insulating supporting by insulating resin plate；
(2), select on the downside of capacitance type potential transformer oil ga(u)ge near tank bottoms position, bore the circular hole of an a diameter of 15mm, bolt is drawn outside insulation rubber ring pad being set in circular hole and installing, draw the most sheathed valve rubber, tabletting inside and outside the fuel tank of bolt the most outside, and it is fixing to carry out compressing sealing by clamp nut；
(3), in capacitance type potential transformer fuel tank, by arrester ground end with draw outward bolt and be connected；
(4), outside capacitance type potential transformer fuel tank, spark gap on-line monitoring conduction current table is fixed on capacitance type potential transformer base；
(5), outside capacitance type potential transformer fuel tank, by spark gap on-line monitoring conduction current table one end with draw outward bolt and be connected, the other end is connected with the earth lead of capacitance type potential transformer.
Claims (3)
1. the remodeling method of a spark gap on-line monitoring type capacitance type potential transformer, it is characterised in that: it comprises the steps:
(1), spark gap lower end ground connection in capacitance type potential transformer is opened, and carry out insulating supporting with insulating part；
(2), selecting appropriate location on the downside of capacitance type potential transformer oil ga(u)ge, hole and arrange the outer bolt that draws, described outer drawing arranges insulated enclosure mechanism between bolt and capacitance type potential transformer fuel tank；
(3), by arrester ground end in capacitance type potential transformer with draw outward bolt and be connected；
(4), spark gap on-line monitoring conduction current table is fixed on capacitance type potential transformer base；
(5), by spark gap on-line monitoring conduction current table one end with draw outward bolt and be connected, other end ground connection.
2. the remodeling method of spark gap on-line monitoring type capacitance type potential transformer as claimed in claim 1, it is characterised in that: described insulating part is epoxy resins insulation part.
3. the remodeling method of spark gap on-line monitoring type capacitance type potential transformer as claimed in claim 1, it is characterised in that: described insulated enclosure mechanism is insulation rubber pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310537873.1A CN103645368B (en) | 2013-11-04 | 2013-11-04 | The remodeling method of spark gap on-line monitoring type capacitance type potential transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310537873.1A CN103645368B (en) | 2013-11-04 | 2013-11-04 | The remodeling method of spark gap on-line monitoring type capacitance type potential transformer |
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| CN103645368A CN103645368A (en) | 2014-03-19 |
| CN103645368B true CN103645368B (en) | 2016-09-28 |
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| CN201310537873.1A Active CN103645368B (en) | 2013-11-04 | 2013-11-04 | The remodeling method of spark gap on-line monitoring type capacitance type potential transformer |
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Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2074506U (en) * | 1990-09-28 | 1991-04-03 | 王国才 | Double-functional discharge counter |
| JPH11202000A (en) * | 1998-01-13 | 1999-07-30 | Tokyo Electric Power Co Inc:The | Optical vt |
| CN101680918B (en) * | 2007-04-18 | 2012-08-22 | 株式会社东芝 | Optical VT device |
| CN102044335A (en) * | 2009-10-20 | 2011-05-04 | 大连互感器有限公司 | Capacitor voltage transformer with external error adjusting structure |
| DE102010018969A1 (en) * | 2010-04-27 | 2011-10-27 | Siemens Aktiengesellschaft | Current transformer arrangement |
| CN201877752U (en) * | 2010-12-09 | 2011-06-22 | 天津市百利纽泰克电气科技有限公司 | Error adjustment connecting box and capacitor voltage transformer with same |
| CN202421362U (en) * | 2011-12-12 | 2012-09-05 | 河南省电力公司平顶山供电公司 | Arrester online monitoring meter |
| CN202423952U (en) * | 2011-12-13 | 2012-09-05 | 河南省电力公司平顶山供电公司 | Special wiring equipment for GIS lightning arrester line |
| CN103018497A (en) * | 2012-12-21 | 2013-04-03 | 桂林电力电容器有限责任公司 | Medium-voltage grounding terminal structure for capacitor voltage transformer test |
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2013
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