CN104867675A - Capacitor core-insulated assembly type capacitor - Google Patents
Capacitor core-insulated assembly type capacitor Download PDFInfo
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- CN104867675A CN104867675A CN201410847445.3A CN201410847445A CN104867675A CN 104867675 A CN104867675 A CN 104867675A CN 201410847445 A CN201410847445 A CN 201410847445A CN 104867675 A CN104867675 A CN 104867675A
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Abstract
The invention provides a capacitor core-insulated assembly type capacitor. The capacitor core-insulated assembly type capacitor comprises metal frames, capacitor units, a large shell and bushings which are insulated from one another. The capacitor core-insulated assemble type capacitor is characterized in that the capacitor units are installed on the metal frames; the metal frames are insulated from each other through insulating supporting components, and the metal frames and the large shell are also insulated from each other through insulating supporting components; metal components on two side surfaces of the metal frames are provided with an oil gap separation insulating component respectively; oil gaps between a core and the large shell are divided into multi-oil gap insulating layers through the oil gap separation insulating components; connecting lines of the capacitor units at the front surfaces and the back surfaces of the metal frames are fixedly installed on insulating lines through adopting lead oil gap separation insulating components; and the oil gaps between wires and the large shell are divided into the multi-oil gap insulating layers, namely, the multi-oil gap insulating layers can be located around the capacitor core. With the capacitor core-insulated assemble type capacitor of the invention adopted, the size of the oil gaps can be decreased, and oil consumption can be decreased, and economic performance can be improved, and the smoothness of oil ways can be maintained to the greatest extent, and the heat dissipation efficiency of the assembly type capacitors can be improved, and the operational reliability of the assembly type capacitor can be improved.
Description
Technical field
The invention belongs to power capacitor technical field, relate to a kind of integrated capacitor, particularly the integrated capacitor that insulate of a kind of capacitor core body.
Background technology
Integrated capacitor is a capacitor product with China's independent intellectual property right, integrated capacitor is in the past that the capacitor unit be made up of single series block element is assembled on a metal frame, by forming capacitor core body after the external connection line connection in series-parallel of capacitor unit, be loaded in the large case shell of aggregation type, by the sleeve pipe that integrated capacitor covers, electrode is drawn again, after then filling insulating oil in aggregation type large case shell, namely constitute a complete integrated capacitor.But along with the development of capacitor technology, capacity of capacitor bank requires increasing, and this just causes Problems existing in this technology more and more outstanding, as:
1) cannot complete mutually insulated between metal frame, make capacitor explodes energy be difficult to realize physical isolation, condenser capacity is once making explosion energy exceed standard greatly;
2) electric pressure progressively improves, cause charged naked metal and connecting line etc. in capacitor core body to strengthen with large shell spacing, needed for be filled with insulation oil mass and also increase, and the oil clearance between electrified body and shell does not insulate isolation, easily punctured, poor reliability by impurity bridge joint;
3) single string segment unit structure is unfavorable for adopting electrical wiring dividing method to reduce capacitor explodes energy, is unfavorable for integrated capacitor safe operation.
Although unit therefor for going here and there segment structure more in patent ZL201020519529.1, Capacitor banks also uses multiple framework modes of mutually insulated, because of oversize, cannot be used among integrated capacitor.Though adopt the framework mode of mutually insulated and segment unit structure of going here and there to be described to integrated capacitor of the present invention in patent ZL201020519529.1, insulation technology between bare conductor and shell is not described more.Have in current voltol oil immersion integrated capacitor product and to adopt insulating paper or plate between electric device and shell, carry out oil-gap separation, though the segregation method of this oil-gap makes the oil clearance between electric device and shell be separated into some small oil gaps by insulating paper or plate, and insulation property are improved, but the pathway also causing the heating of electric device to pass to shell through oil clearance is cut off, heat that electric device produces cannot be spread out of, be degrading the service conditions of electric device, obviously in this technology, oil clearance separation raising insulation property and electric device heat dispersion ensure it is afoul.This contradiction does not solve undoubtedly, and the performance that improve integrated capacitor is impossible.
In view of this, be necessary the integrated capacitor providing a kind of capacitor core body to insulate, to solve the problem.
Summary of the invention
The object of the invention is: the present invention exceeds standard to solve high voltage large capcity integrated capacitor explosion energy, core body is excessive to shell oil clearance, insulation property raising is dispelled the heat with core body and is contradicted this three subject matters, thus provides the integrated capacitor that a kind of capacitor core body insulate.
For achieving the above object, the present invention adopts following technical scheme: a kind of integrated capacitor of capacitor core body insulation, comprise the metal frame of mutual insulating, capacitor unit, large case shell and sleeve pipe, it is characterized in that: capacitor unit is contained on metal frame, between metal frame and metal frame and and large case shell between insulate with insulated support, two side metal parts of metal frame are provided with oil clearance and separate insulating part, the oil clearance between core body and large case shell has been divided into heavy wool gap insulation layer; The connecting line of the capacitor unit at the positive back side of metal frame, adopt lead-in wire oil clearance to separate insulating part and be fixedly mounted on insulated wire, the oil clearance between wire and large case shell has been divided into heavy wool gap insulation layer, and namely capacitor core body surrounding all has heavy wool gap insulation layer.The technique effect brought thus is: between the four limit boxboards reaching capacitor core body and aggregation type large case shell, gap is minimum, usually mounting process fit dimension is only needed, while making integrated capacitor size minimum, ensure that again oil circuit is unimpeded to greatest extent, while ensure that integrated capacitor miniaturization, in turn ensure that the heat sinking function of integrated capacitor, integrated capacitor performance is ensured.
The integrated capacitor of capacitor core body insulation as above, is characterized in that: adopt insulated bolt and insulation oil clearance partition ring, the insulating part being used for metal frame insulation is separated into multiple small oil gap, and is fastened on metal frame.The technique effect brought thus is: ensure that again oil circuit is unimpeded while improving the insulation level of oil clearance between metal frame and large case shell, reach size between metal frame and large case shell minimum while, turn improve heat transfer radiating efficiency.
The integrated capacitor of capacitor core body insulation as above, it is characterized in that, adopt insulated bolt and insulation oil clearance partition ring that insulating part is divided into multiple oil clearance, and coordinate with insulated bolt with wire location fastener, be fastened on the connecting line of capacitor unit.The technique effect brought thus is: improve capacitor unit connecting line and between sleeve pipe terminal and integrated capacitor large case shell oil clearance insulation level while, ensure that again oil circuit is unimpeded, reach capacitor unit lead-in wire and between terminal and large case shell size minimum while, turn improve heat transfer radiating efficiency.
The integrated capacitor of capacitor core body insulation as above, it is characterized in that, the front and back of capacitor core body, four sides, left and right have employed heavy wool gap insulation, and adopt insulated support to carry out insulating and mechanical support, to complete the separation of explosion energy between capacitor framework between capacitor framework, between capacitor framework and large case shell.
The integrated capacitor of capacitor core body insulation as above, it is characterized in that, all capacitor lines all adopt the wire of tape insulation, and the insulation level of wire is consistent with integrated capacitor.
The present invention compared with prior art tool has the following advantages: adopt integrated capacitor of the present invention can reduce oil clearance size, minimizing oil mass, improves economic performance.Simultaneously remain the unimpeded of oil circuit to greatest extent again, make the heating of capacitor unit more effectively can be transmitted to large case shell and shed, improve the radiating efficiency of integrated capacitor thus improve the operational reliability of integrated capacitor.
In addition have employed insulated support, effectively can carry out physical separation to capacitor explodes energy, coordinate the electrical connecting wires of wire to carry out the segmentation of explosion energy, the present invention can be made to be applicable to the integrated capacitor of each electric pressure and capacity, effectively improve the fail safe of integrated capacitor.
Accompanying drawing explanation
Fig. 1 is the structural representation of the integrated capacitor core body of the embodiment of the present invention.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is the end view of Fig. 1.
Fig. 4 is the structural representation of the integrated capacitor of the embodiment of the present invention.
Fig. 5 is the fragmentary detail view that oil clearance separates insulating part 12.
Fig. 6 is the fragmentary detail view that sleeve pipe lead-in wire oil clearance separates insulating part 14.
Embodiment
In order to understand the present invention better, illustrate content of the present invention further below in conjunction with embodiment, but content of the present invention is not only confined to the following examples.Those skilled in the art can make various changes or modifications the present invention, and these equivalent form of values are equally within claims limited range listed by the application.
Symbol description in accompanying drawing: 1-capacitor unit, 2-capacitor casing, 3-connects wire, 4-Steel Structure, 5-insulated support, 6-connecting line, 7-connecting line, the large case shell of 8-, 9-current potential connecting line, the large sleeve pipe of 10-, 11-insulated bolt, 12-oil clearance separates insulating part, 13-insulating washer, 14-sleeve pipe lead-in wire oil clearance separates insulating part, 15-wire location fastener, 16-nut.
As shown in Figure 1 to Figure 3, two electrodes of capacitor unit 1 are drawn by capacitor casing 2, and according to the voltage of integrated capacitor and capacity requirement, point two rows are arranged on Steel Structure 4 side by side.Capacitor unit 1 adopts and connects wire 3 and carry out connection in series-parallel connection, and namely constitute a core body framework, upper and lower framework is supported by insulated support 5, and complete each other and and case shell 8 between potential isolation insulate.On, intermediate potential is connected on steel frame 4 by current potential connecting line 9 by lower framework.The head end of integrated capacitor is drawn by connecting line 6, and end is drawn by connecting line 7, and two lead-in wires are connected on two large sleeve pipes 10 respectively.While making the oil clearance between Steel Structure 4 and large case shell 8 little as far as possible, do not affect again capacitor unit 1 caloric value and spread by oil and to shed to large case shell 8.Between Steel Structure 4 and large case shell 8, do not arrange extensive insulation shield, but employing utilizes insulated bolt 11 to be arranged on Steel Structure 4 by insulating part 12 two sides.Insulating part 12 and insulating part 12 insulating washer 13 are located, and oil clearance is divided into several small oil gap, and reach and avoid Steel Structure 4 and the oil clearance greatly between case shell 8 to be punctured by impurity bridge joint, substantially increase insulation property and the security reliability of oil clearance.At the front and back of capacitor core body, be connect wire 3 and capacitor casing 2, connect wire 3 and present " T " shape with capacitor casing 2, insulating part 120 points is not easily installed.The present invention adopts insulated bolt 11 and wire to locate fastener 15 to match for this reason, being fixed on insulated bolt 11 by wire location fastener 15 is connected on wire 3, make insulating part 12 towards large case shell 8 side, and complete large case shell 8 and separate with the oil clearance be connected between wire 3.Because between insulating part 12 and electrified body, position is fixed relationship, if therefore insulating part 12 size to be comparatively isolated electrified body size bigger.General 35kV integrated capacitor insulating part 12 single side size 30 mms larger than electrified body, insulating part 12 single side size of 66kV integrated capacitor can play good segmentation oil clearance effect than the large 50mm of electrified body.Connecting line 6 and connecting line 7 all adopt insulated conductor, by protection of self having insulated.The top and the bottom of core body adopt insulated support 5 to support, and form the core body that two even multiple mutually insulated Steel Structure 4 form.Insulated support 5 makes between Steel Structure 4, mutually insulated between Steel Structure 4 and large case shell 8, and makes each Steel Structure 4 become the supporting body of an explosion energy, reaches the effect adopting physical method segmentation capacitor explodes energy.Constitute the capacitor core body that the present invention is complete like this, this core body is loaded large case shell 8, namely sealed oiling constitutes a complete integrated capacitor.
As shown in Figure 4,35kV, 66kV integrated capacitor agent structure adopts the Double tabletop structure of similar ZL201020519529.1 mutually insulated, and capacitor unit adopts element many strings segment structure, and 10kV integrated capacitor then adopts insulation against ground list platform structure.Can ensure that the explosion energy of large value capacitor is not more than 15kJ in structure like this, and meet the requirement of standard.
Fig. 5 is the fragmentary detail view that oil clearance separates insulating part 12.Fig. 6 is the fragmentary detail view that sleeve pipe lead-in wire oil clearance separates insulating part 14.The oil clearance of these two kinds of oil clearances separation insulating parts separates number and the insulating board number of plies (thickness) is determined by electric pressure.Electric pressure height can increase the insulation oil clearance partition ring number of plies and the insulating board number of plies carrys out reinforced insulation level, to meet dielectric strength requirement.
For improving the insulation property of oil clearance between integrated capacitor core body and shell, do not cause again the heating of capacitor core body to shed difficulty simultaneously, and reach the raising security of operation of integrated capacitor and the object of reliability, the present invention adopts local to put on a suit of armour formula insulating method, make the oil clearance between charged naked metal and shell, the naked intermetallic oil clearance of shell and band different potentials can be separated into several small oil gaps, the insulation property of oil clearance are improved, and make the operational safety performance of integrated capacitor, while unfailing performance significantly improves, make again oil circuit in capacitor core body, and oily flow path between core body and shell is unblocked, and ensure that integrated capacitor core body institute caloric value is dispelled the heat by shell in time.While so both improving the insulation property of capacitor, in turn ensure that the heat radiation of capacitor, reach the object improving integrated capacitor operational safety performance and reliability.
The content be not described in detail in this specification belongs to the known prior art of professional and technical personnel in the field.
Claims (5)
1. the integrated capacitor of a capacitor core body insulation, comprise the metal frame of mutual insulating, capacitor unit, large case shell and sleeve pipe, it is characterized in that: capacitor unit is contained on metal frame, between metal frame and metal frame and and large case shell between insulate with insulated support, two side metal parts of metal frame are provided with oil clearance and separate insulating part, the oil clearance between core body and large case shell has been divided into heavy wool gap insulation layer; The connecting line of the capacitor unit at the positive back side of metal frame, adopt lead-in wire oil clearance to separate insulating part and be fixedly mounted on insulated wire, the oil clearance between wire and large case shell has been divided into heavy wool gap insulation layer, and namely capacitor core body surrounding all has heavy wool gap insulation layer.
2. the integrated capacitor of capacitor core body insulation according to claim 1, is characterized in that: adopt insulated bolt and insulation oil clearance partition ring, the insulating part being used for metal frame insulation is separated into multiple small oil gap, and is fastened on metal frame.
3. the integrated capacitor of capacitor core body insulation according to claim 1, it is characterized in that, adopt insulated bolt and insulation oil clearance partition ring that insulating part is divided into multiple oil clearance, and coordinate with insulated bolt with wire location fastener, be fastened on the connecting line of capacitor unit.
4. the integrated capacitor of capacitor core body insulation according to claim 1, it is characterized in that, the front and back of capacitor core body, four sides, left and right have employed heavy wool gap insulation, and adopt insulated support to carry out insulating and mechanical support, to complete the separation of explosion energy between capacitor framework between capacitor framework, between capacitor framework and large case shell.
5. the integrated capacitor of capacitor core body insulation according to claim 1, it is characterized in that, all capacitor lines all adopt the wire of tape insulation, and the insulation level of wire is consistent with integrated capacitor.
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| CN201410847445.3A CN104867675B (en) | 2014-12-31 | 2014-12-31 | The integrated capacitor of capacitor core body insulation |
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| CN201410847445.3A CN104867675B (en) | 2014-12-31 | 2014-12-31 | The integrated capacitor of capacitor core body insulation |
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| CN104867675B CN104867675B (en) | 2017-07-07 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107275087A (en) * | 2017-08-03 | 2017-10-20 | 无锡市电力滤波有限公司 | A kind of super high power three-level converter direct current capacitors |
| CN108511192A (en) * | 2018-01-31 | 2018-09-07 | 国网电力科学研究院武汉南瑞有限责任公司 | Using all insulation frame integrated capacitor and installation method of insulation crust capacitor unit |
| CN108511193A (en) * | 2018-01-31 | 2018-09-07 | 国网电力科学研究院武汉南瑞有限责任公司 | Using the modeling Baogang all insulation frame integrated capacitor and installation method of insulation crust capacitor unit |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000299245A (en) * | 1999-04-12 | 2000-10-24 | Nichicon Corp | Dry-type metallized film capacitor |
| CN201812681U (en) * | 2010-09-07 | 2011-04-27 | 武汉电联电力电气技术有限公司 | High-reliability integrated capacitor |
| CN102610389A (en) * | 2011-12-20 | 2012-07-25 | 日新电机（无锡）有限公司 | Integrated capacitor bank with insulation support |
| CN204497062U (en) * | 2014-12-31 | 2015-07-22 | 刘瑞云 | The integrated capacitor of capacitor core body insulation |
-
2014
- 2014-12-31 CN CN201410847445.3A patent/CN104867675B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000299245A (en) * | 1999-04-12 | 2000-10-24 | Nichicon Corp | Dry-type metallized film capacitor |
| CN201812681U (en) * | 2010-09-07 | 2011-04-27 | 武汉电联电力电气技术有限公司 | High-reliability integrated capacitor |
| CN102610389A (en) * | 2011-12-20 | 2012-07-25 | 日新电机（无锡）有限公司 | Integrated capacitor bank with insulation support |
| CN204497062U (en) * | 2014-12-31 | 2015-07-22 | 刘瑞云 | The integrated capacitor of capacitor core body insulation |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107275087A (en) * | 2017-08-03 | 2017-10-20 | 无锡市电力滤波有限公司 | A kind of super high power three-level converter direct current capacitors |
| CN108511192A (en) * | 2018-01-31 | 2018-09-07 | 国网电力科学研究院武汉南瑞有限责任公司 | Using all insulation frame integrated capacitor and installation method of insulation crust capacitor unit |
| CN108511193A (en) * | 2018-01-31 | 2018-09-07 | 国网电力科学研究院武汉南瑞有限责任公司 | Using the modeling Baogang all insulation frame integrated capacitor and installation method of insulation crust capacitor unit |
| CN108511192B (en) * | 2018-01-31 | 2019-11-12 | 国网电力科学研究院武汉南瑞有限责任公司 | The all insulation frame integrated capacitor and installation method of insulation crust junior unit |
| CN108511193B (en) * | 2018-01-31 | 2019-11-12 | 国网电力科学研究院武汉南瑞有限责任公司 | The modeling Baogang frame integrated capacitor and installation method of insulation crust junior unit |
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| CN104867675B (en) | 2017-07-07 |
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