CN203932788U - A kind of solid insulation voltage transformer cabinet - Google Patents
A kind of solid insulation voltage transformer cabinet Download PDFInfo
- Publication number
- CN203932788U CN203932788U CN201420354052.4U CN201420354052U CN203932788U CN 203932788 U CN203932788 U CN 203932788U CN 201420354052 U CN201420354052 U CN 201420354052U CN 203932788 U CN203932788 U CN 203932788U
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- CN
- China
- Prior art keywords
- voltage transformer
- transformer cabinet
- cabinet
- insulating cylinder
- solid insulation
- 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 - Fee Related
Links
- 238000009413 insulation Methods 0.000 title claims abstract description 26
- 239000007787 solid Substances 0.000 title claims abstract description 26
- 230000007246 mechanism Effects 0.000 claims abstract description 11
- 239000003822 epoxy resin Substances 0.000 claims abstract description 5
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 5
- 238000002955 isolation Methods 0.000 claims description 6
- 230000009172 bursting Effects 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 3
- 239000000428 dust Substances 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 238000005269 aluminizing Methods 0.000 description 1
- 230000002421 anti-septic effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000001473 noxious effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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- Patch Boards (AREA)
Abstract
The utility model has disclosed a kind of solid insulation voltage transformer cabinet, comprise voltage transformer cabinet, be arranged on voltage transformer, isolating switch, isolator operating mechanism in voltage transformer cabinet, in described voltage transformer cabinet, be also provided with insulating cylinder, described isolating switch is placed in insulating cylinder, described insulating cylinder filling epoxy resin, described isolating switch outlet casing tube is connected with the voltage transformer outside insulating cylinder through flexible cable, and described isolator operating mechanism is placed in outside insulating cylinder and is connected with isolating switch.This cabinet guarantees the power supply quality under all weather conditions, and work is not subject to sleety weather, and the large and filthy environment of air humidity affects.
Description
Technical field
The present invention relates to High-Voltage Electrical Appliances switchgear assembly, relate in particular to a kind of environment protection solid insulated switching installation voltage transformer cabinet (hereinafter to be referred as PT cabinet).
Background technology
In open urban 10KV supplying power allocation, for guaranteeing the reliability of power supply plan, stability, promptness, often adopts ring network power supply pattern, and one group of 10KV ring main unit station is set in certain location.
Ring main unit need to be own with vacuum circuit-breaker because of function, and on-load switch etc. are closed, turned parts, need motor drive mechanism to operate, and these mechanisms need LVPS, as 220V, 100V, can only install voltage transformer cabinet additional at each station and realize.
In general, the manufacture of outdoor 10KV voltage transformer cabinet, installation, acceptance criteria adopt air type insulation mode, and as Fig. 1,2, failure rate is very large, and rate of failure is large, are large problems always, are difficult to solve.Be mainly manifested in following a few point defect:
1, the impact of the temperature difference; Product during use, during temperature generation larger difference, can produce condensation in voltage transformer cabinet, and the piece surface in cabinet, with the globule, causes interior electric discharge or the failed shorted of occurring of cabinet.
2, the impact in rainy season; Rainy day, in air, contain moisture, air humidity is very large, because " leakage distance " in high voltage electric appliance has strict requirement to air humidity, when humidity is larger, can produce between phase and phase or relative ground circuit, causes voltage transformer cabinet fault.Especially at plum rain season, the most serious.
3, the impact of koniology; Because product is in roadside, air-insulated product is afraid of dust granule most, and these particles can be attached to component surface, and phenomenon occurs to cause electrified body " to climb arc ", until electric discharge.
4, the impact of heavy rain and urban sewage ability; In Shelter in South China Cities, all can rain in torrents every year, if urban sewage scarce capacity, road ponding goes up, and will flood and air type voltage transformer cabinet,, even there is electric shock accidents in cabinet internal short-circuit.
Summary of the invention
Technical problem to be solved by this invention is to realize a kind of safe and reliablely, is subject to extraneous factor to affect little voltage transformer electric supply installation.
To achieve these goals, the technical solution used in the present invention is: a kind of solid insulation voltage transformer cabinet, comprise voltage transformer cabinet, be arranged on voltage transformer, isolating switch, isolator operating mechanism in voltage transformer cabinet, in described voltage transformer cabinet, be also provided with insulating cylinder, described isolating switch is placed in insulating cylinder, described insulating cylinder filling epoxy resin, described isolating switch outlet casing tube is connected with the voltage transformer outside insulating cylinder through flexible cable, and described isolator operating mechanism is placed in outside insulating cylinder and is connected with isolating switch.
Described insulating cylinder is placed in the solid insulation isolation cabinet in voltage transformer cabinet.
Described voltage transformer is placed in voltage transformer cabinet middle part, apart from 700-900mm at the bottom of cabinet.
Described voltage transformer exterior insulation sealing, and built-in 0.5A fuse.
Described voltage transformer cabinet bottom surface is all provided with earth bus, and described voltage transformer is provided with voltmeter cashier's office in a shop, by 220V/110V output cable terminal box, is connected respectively with described voltmeter.
Described high-voltage charged body of voltage transformer adopts cable-to-cable connector to be connected with external equipment with flexible cable.
Tangible lightning arrester is set in described voltage transformer cabinet.
Described voltage transformer cabinet rear portion is provided with bursting diaphragm.
Advantage of the present invention comprises: 1, it adopts a kind of reliable epoxy as complex media, has dwindled leakage distance and the creepage distance of product electrified body.2, all electrification in high voltage parts are all sealed in a solid confined chamber, owing to there is no air in air chamber, with the air of time outside, also enter and do not come, and it is not subject to the impacts such as air humidity, dust.While 3, moving, with bus tie, electrical network 10kV high pressure is introduced, realized low-voltage output, meet on-the-spot electricity consumption needs.4, can be placed in isolation cabinet by functional unit, be convenient to work on the spot and maintenance, the inside and outside all connectors of isolation cabinet and driving member are all by high-strength sealing circle.5, the protection of voltage transformer adopts XRNT current limiting fuse, and on-load switch is passed through in the control of voltage transformer.6, product casing adopts 304 stainless steels to form with NC laser welding, and antiseptic power is strong, and magnetic field is even, good heat dissipation.7, product degree of protection is high, and anti-heavy rain can be strong.
Accompanying drawing explanation
Below the content of every width accompanying drawing expression in specification of the present invention and the mark in figure are briefly described:
Fig. 1 solid insulation PT cabinet schematic rear view;
Fig. 2 solid insulation PT cabinet side schematic view;
Fig. 3 solid insulation PT cabinet front schematic view;
Mark in above-mentioned figure is: 1, voltage transformer cabinet; 2, voltmeter; 3, output cable terminal box; 4, cable-to-cable connector; 5, voltage transformer; 6, flexible cable; 7, earth bus; 8, lightning arrester; 9, isolator operating mechanism; 10, isolation cabinet; 11, insulating cylinder; 12, bursting diaphragm; 13, bursting diaphragm.
Embodiment
The invention of the application's voltage transformer cabinet is mainly for existing product, to be subject in use the impact of objective environment, can not guarantee effectively power supply and a kind of full operating mode product of design, it adopts solid insulation mode (1), without any exposed electrified body, safe and reliable, tangible.(2), because cabinet does not adopt SF6 gas, all electrification in high voltage parts are all sealed in a poured with epoxy resin insulating cylinder 11, all insulation, hermetically sealed, with the air of time outside, also to enter and do not come, it is not subject to air humidity, the impacts such as dust are a kind of PT cabinets of environmental protection and safety type.(3) while moving, with flexible cable 6 and cable-to-cable connector 4, electrical network 10kV high pressure is introduced, realize low-voltage output, meet on-the-spot electricity consumption needs (4) PT and be placed in cabinet middle part, apart from ground, there is certain height (800mm left and right), anti-ponding ability is strong, and is convenient to work on the spot and maintenance.(5) protection of voltage transformer 5 adopts built-in XRNT current limiting fuse, and tri-station isolating switch is passed through in the control of voltage transformer 5.
Specifically, solid insulation voltage transformer cabinet comprises voltage transformer cabinet 1, is arranged on voltage transformer 5, isolating switch, isolator operating mechanism 9, insulating cylinder 11. in voltage transformer cabinet 1
Wherein isolating switch is that tri-station isolating switch is the control assembly of power supply turnover, be realized by the operating mechanism supporting with it 9, and cable-to-cable connector 4 works to be connected 10kV high-tension electricity with flexible cable 6, and outer bonding is safe and reliable;
In built-in voltage transformer 5, be provided with fuse XRNT and play safe effect, when instrument transformer 5 discharge currents surpass certain value, cut off instrument transformer 5 high voltage supplies; The major function of voltage transformer 5 be voltage from high pressure conversion to low pressure.
Voltage transformer cabinet 1 layout 10KV high pressure end of incoming cables is located at top, through tri-station isolating switch, cable-to-cable connector 4 and flexible cable 6,5 high-voltage terminals of voltage transformer, internal high-voltage current limiting fuse, finally the low-pressure line-outgoing termination by instrument transformer goes out linear quadratic control power supply.The screen of voltage transformer cabinet 1 outer surface spray metal ground connection; Cabinet shell adopts aluminizing zine plate to process through numerical control machining center, and machining accuracy is high, loads onto inner various components and parts after moulding is assembled;
Above-mentioned isolating switch is placed in insulating cylinder 11, insulating cylinder 11 filling epoxy resins, and insulating cylinder 11 is placed in the solid insulation isolation cabinet 10 in voltage transformer cabinet 1.Voltage transformer cabinet 1 bottom surface is all provided with earth bus 7, voltage transformer cabinet 1 is provided with voltmeter 2, by 220V/110V output cable terminal box 3, be connected respectively with voltmeter 2, and voltage transformer cabinet 1 is interior that tangible lightning arrester 8 is set, rear portion is provided with bursting diaphragm 12,13.
This product is used jointly with solid insulation ring main unit, by top solid insulated busbar, is connected to ring main unit top high-voltage interface and can be obtained 10KV high voltage source.Inner solid insulation material of filling does not discharge any noxious substance, without the hidden danger of gas leakage blast and inner arcing.Totally-enclosed design reaches full operating mode needs.This invention be by the theory of solid insulation in conjunction with the feature of tangible cable-to-cable connector and use modern crafts means to solve rugged environment and pollute the problem to Supply Security and reliability, the severe degree of the outside weather of product does not affect Supply Security.And this voltage transformer cabinet 1 structure is simplified, safety and environmental protection, repair and maintenance are easy, operating mode entirely not affected by environment is used.
By reference to the accompanying drawings the present invention is exemplarily described above; obviously specific implementation of the present invention is not subject to the restrictions described above; as long as adopted the improvement of the various unsubstantialities that method of the present invention design and technical scheme carry out; or without improving, design of the present invention and technical scheme are directly applied to other occasion, all within protection scope of the present invention.
Claims (8)
1. a solid insulation voltage transformer cabinet, comprise voltage transformer cabinet (1), be arranged on the voltage transformer (5) in voltage transformer cabinet (1), isolating switch, isolator operating mechanism (9), it is characterized in that: in described voltage transformer cabinet (1), be also provided with insulating cylinder (11), described isolating switch is placed in insulating cylinder (11), described insulating cylinder (11) filling epoxy resin, described isolating switch outlet casing tube is connected with the voltage transformer (5) outside insulating cylinder (11) through flexible cable (6), described isolator operating mechanism (9) is placed in outside insulating cylinder (11) and is connected with isolating switch.
2. solid insulation voltage transformer cabinet according to claim 1, is characterized in that: described insulating cylinder (11) is placed in the solid insulation isolation cabinet (10) in voltage transformer cabinet (1).
3. solid insulation voltage transformer cabinet according to claim 2, is characterized in that: described voltage transformer (5) is placed in voltage transformer cabinet (1) middle part, apart from 700-900mm at the bottom of cabinet.
4. according to the solid insulation voltage transformer cabinet described in claim 1,2 or 3, it is characterized in that: the sealing of described voltage transformer (5) exterior insulation, and built-in 0.5A fuse.
5. solid insulation voltage transformer cabinet according to claim 4, it is characterized in that: described voltage transformer cabinet (1) bottom surface is all provided with earth bus (7), described voltage transformer cabinet (1) is provided with voltmeter (2), by 220V/110V output cable terminal box (3), is connected respectively with described voltmeter (2).
6. solid insulation voltage transformer cabinet according to claim 5, is characterized in that: described (5) high-voltage charged bodies of voltage transformer adopt cable-to-cable connector (4) to be connected with external equipment with flexible cable (6).
7. solid insulation voltage transformer cabinet according to claim 6, is characterized in that: tangible lightning arrester (8) is set in described voltage transformer cabinet (1).
8. solid insulation voltage transformer cabinet according to claim 7, is characterized in that: described voltage transformer cabinet (1) rear portion is provided with bursting diaphragm (12,13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420354052.4U CN203932788U (en) | 2014-06-27 | 2014-06-27 | A kind of solid insulation voltage transformer cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420354052.4U CN203932788U (en) | 2014-06-27 | 2014-06-27 | A kind of solid insulation voltage transformer cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203932788U true CN203932788U (en) | 2014-11-05 |
Family
ID=51828544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420354052.4U Expired - Fee Related CN203932788U (en) | 2014-06-27 | 2014-06-27 | A kind of solid insulation voltage transformer cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203932788U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105207104A (en) * | 2015-09-18 | 2015-12-30 | 江苏南瑞恒驰电气装备有限公司 | Power-distribution ring network PT cabinet |
-
2014
- 2014-06-27 CN CN201420354052.4U patent/CN203932788U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105207104A (en) * | 2015-09-18 | 2015-12-30 | 江苏南瑞恒驰电气装备有限公司 | Power-distribution ring network PT cabinet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141105 Termination date: 20200627 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |