CN204117827U - A kind of outdoor high-capacity low office discharge stream instrument transformer - Google Patents
A kind of outdoor high-capacity low office discharge stream instrument transformer Download PDFInfo
- Publication number
- CN204117827U CN204117827U CN201420413260.7U CN201420413260U CN204117827U CN 204117827 U CN204117827 U CN 204117827U CN 201420413260 U CN201420413260 U CN 201420413260U CN 204117827 U CN204117827 U CN 204117827U
- Authority
- CN
- China
- Prior art keywords
- winding
- iron core
- measurement
- instrument transformer
- epoxy resin
- 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
Landscapes
- Housings And Mounting Of Transformers (AREA)
- Transformers For Measuring Instruments (AREA)
Abstract
The utility model proposes a kind of outdoor high-capacity low office discharge stream instrument transformer, comprise winding, measurement iron core and a protection iron core; Measure iron core outside and be wound with measurement winding, measure between iron core and measurement winding and be separated with square ring cardboard, measure winding outside and be coated with secondary external insulation layer; Protection iron core outside is wound with protective winding, and be separated with square ring cardboard between protection iron core and protective winding, protective winding outside is coated with secondary external insulation layer; A winding is through described measurement iron core and protection iron core; One time winding outside is coated with an external insulation layer; The two ends of a winding are connected with a wire; Each parts are positioned at the epoxy resin poured body of one moulding by casting, and outer surface is provided with silicon rubber umbrella skirt; Epoxy resin poured body upper end is provided with primary connection terminal; Epoxy resin poured body bottom is provided with secondary wiring terminals box.The utility model structure is simple, and volume is little, easy for installation, and capacity is large, anti-pollution, and uvioresistant is anti-aging.
Description
Technical field
The utility model relates to power system device, specifically a kind of outdoor high-capacity low office discharge stream instrument transformer.
Background technology
Current transformer is generally used in power network line, as measurement electric energy or protection equipment.The insulation of jumbo current transformer is by following several mode: gas-insulated, oil immersed type insulate, wherein gas-insulated is the insulation that employing airing form carries out between the inner each parts of instrument transformer, and oil immersed type insulation is the oil-filled insulation realized between the inner each parts of instrument transformer in instrument transformer, inflation, oil-filled insulation mode are easily revealed, pollute, oil-filled insulation is easy initiation fire also, for ensureing safe operation, test Measuring error must be carried out every year to instrument transformer, maintenance is large, costly.After introduce outdoor poured with epoxy resin from external, alleviate a lot in maintenance; But existing product structure more complicated, volume is large, and production cost is high, installs inconvenient.
Utility model content
The utility model proposes a kind of outdoor high-capacity low office discharge stream instrument transformer, with to solve in prior art current transformer volume large, inconvenience, complex structure, high in cost of production problem are installed.
The technical solution of the utility model is achieved in that
A kind of outdoor high-capacity low office discharge stream instrument transformer, comprises winding, measurement iron core and a protection iron core;
Described measurement iron core outside is wound with measurement winding, and be separated with square ring cardboard between described measurement iron core and measurement winding, described measurement winding outside is coated with secondary external insulation layer; Described protection iron core outside is wound with protective winding, is separated with square ring cardboard between described protection iron core and protective winding, and described protective winding outside is coated with secondary external insulation layer;
A described winding is through described measurement iron core and protection iron core; A described winding outside is coated with an external insulation layer; The two ends of a described winding are connected with a wire;
Former components is positioned at the epoxy resin poured body of one moulding by casting; Described epoxy resin poured body outer surface is provided with silicon rubber umbrella skirt;
Described epoxy resin poured body upper end is provided with primary connection terminal, and described primary connection terminal is connected with a described wire;
Described epoxy resin poured body bottom is provided with secondary wiring terminals box, is provided with secondary wiring terminals in described secondary wiring terminals box, and described secondary wiring terminals is connected with protective winding with described measurement winding respectively; Described secondary wiring terminals box is provided with anti-electricity-theft cover plate;
Base is fixed with bottom described epoxy resin poured body.
Further, the quantity of described protection iron core is 2.
Further, described base and epoxy resin poured body are fixed by inserts.
Further, described measurement iron core is nanocrystalline alloy cores.
Further, described protection iron core is grain-oriented Si steel sheet.
Further, described square ring cardboard is the insulating board that 0.5mm is thick.
Further, described secondary external insulation layer is polyester film layer.
Further, a described external insulation layer is semiconductive crimped paper.
The beneficial effects of the utility model are:
Outdoor high-capacity of the present utility model low office discharge stream instrument transformer, one-body molded by poured with epoxy resin, the features such as have structure simple, volume is little, easy for installation, and capacity is large, anti-pollution, uvioresistant, anti-aging.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the internal structure schematic diagram of Fig. 1 embodiment;
Fig. 3 is the exterior lateral sides structural representation of Fig. 1.
In figure:
1, a winding; 2, iron core is measured; 3, iron core is protected; 4, winding is measured; 5, square ring cardboard; 6, secondary external insulation layer; 7, protective winding; 8, an external insulation layer; 9, a wire; 10, epoxy resin poured body; 11, silicon rubber umbrella skirt; 12, primary connection terminal; 13, secondary wiring terminals box; 14, secondary wiring terminals; 15, anti-electricity-theft cover plate; 16, base; 17, inserts; 18, connecting plate.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
As shown in Figure 1-Figure 3, the low office of the outdoor high-capacity in the present embodiment discharge stream instrument transformer, comprises winding 1, measurement iron core 2 and a protection iron core 3; In the present embodiment, described measurement iron core 2 is nanocrystalline alloy cores, and described measurement iron core 2 outside is wound with measures winding 4, and be separated with square ring cardboard 5 between described measurement iron core 2 and measurement winding 4, described measurement winding 4 outside is coated with secondary external insulation layer 6; Described protection iron core 3 outside is wound with protective winding 7, square ring cardboard 5 is separated with between described protection iron core 3 and protective winding 7, described protective winding 7 outside is coated with secondary external insulation layer 6, protect iron core 3 for grain-oriented Si steel sheet described in the present embodiment, the quantity of protection iron core 3 is 2, can design this numerical value according to actual needs; A described winding 1 is through described measurement iron core 2 and protection iron core 3; Described winding 1 outside is coated with an external insulation layer 8; The two ends of a described winding 1 are connected with a wire 9, and wherein, one end of a winding 1 is connected with a wire 9 by connecting plate 18; Former components is positioned at the epoxy resin poured body 10 of one moulding by casting; Described epoxy resin poured body 10 outer surface is provided with silicon rubber umbrella skirt 11.
Described epoxy resin poured body 10 upper end is provided with primary connection terminal 12, and described primary connection terminal 12 is connected with a described wire 9; Described epoxy resin poured body 10 bottom is provided with secondary wiring terminals box 13, is provided with secondary wiring terminals 14 in described secondary wiring terminals box 13, and described secondary wiring terminals 14 is connected with protective winding 7 with described measurement winding 4 respectively; Described secondary wiring terminals box 13 is provided with anti-electricity-theft cover plate 15; Be fixed with base 16 bottom described epoxy resin poured body 10, described base 16 is fixed by inserts 17 with epoxy resin poured body 10.
In the present embodiment, described square ring cardboard 5 is the insulating board that 0.5mm is thick.Described secondary external insulation layer 6 is polyester film layer.A described external insulation layer 8 is semiconductive crimped paper.
The level time of the current transformer of the present embodiment can accomplish 0.2S level, can accomplish 5 windings, Large Copacity.Adapt to the demand of electric network reconstruction, transformer increase-volume, lines escalation, decrease the replacing of equipment.For product is put in low office, minimum discharge capacity can accomplish below 5Pc, and the useful life of product is extended.Measuring accuracy can accomplish 0.1 grade, can run by full working scope, capacity is large, secondary winding can polytropic ratio, in transformer station's increase-volume, can reduce instrument transformer and change in track remodelling.Cast product, technical maturity, can produce in a large number.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection range of the present utility model.
Claims (8)
1. an outdoor high-capacity low office discharge stream instrument transformer, is characterized in that: comprise winding, measurement iron core and a protection iron core;
Described measurement iron core outside is wound with measurement winding, and be separated with square ring cardboard between described measurement iron core and measurement winding, described measurement winding outside is coated with secondary external insulation layer; Described protection iron core outside is wound with protective winding, is separated with square ring cardboard between described protection iron core and protective winding, and described protective winding outside is coated with secondary external insulation layer;
A described winding is through described measurement iron core and protection iron core; A described winding outside is coated with an external insulation layer; The two ends of a described winding are connected with a wire;
Former components is positioned at the epoxy resin poured body of one moulding by casting; Described epoxy resin poured body outer surface is provided with silicon rubber umbrella skirt;
Described epoxy resin poured body upper end is provided with primary connection terminal, and described primary connection terminal is connected with a described wire;
Described epoxy resin poured body bottom is provided with secondary wiring terminals box, is provided with secondary wiring terminals in described secondary wiring terminals box, and described secondary wiring terminals is connected with protective winding with described measurement winding respectively; Described secondary wiring terminals box is provided with anti-electricity-theft cover plate;
Base is fixed with bottom described epoxy resin poured body.
2. the low office of a kind of outdoor high-capacity as claimed in claim 1 discharge stream instrument transformer, is characterized in that: the quantity of described protection iron core is 2.
3. the low office of a kind of outdoor high-capacity as claimed in claim 1 discharge stream instrument transformer, is characterized in that: described base and epoxy resin poured body are fixed by inserts.
4. the low office of a kind of outdoor high-capacity as claimed in claim 1 discharge stream instrument transformer, is characterized in that: described measurement iron core is nanocrystalline alloy cores.
5. the low office of a kind of outdoor high-capacity as claimed in claim 1 discharge stream instrument transformer, is characterized in that: described protection iron core is grain-oriented Si steel sheet.
6. the low office of a kind of outdoor high-capacity as claimed in claim 1 discharge stream instrument transformer, is characterized in that: described square ring cardboard is the insulating board that 0.5mm is thick.
7. the low office of a kind of outdoor high-capacity as claimed in claim 1 discharge stream instrument transformer, is characterized in that: described secondary external insulation layer is polyester film layer.
8. the low office of a kind of outdoor high-capacity as claimed in claim 1 discharge stream instrument transformer, is characterized in that: a described external insulation layer is semiconductive crimped paper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420413260.7U CN204117827U (en) | 2014-07-24 | 2014-07-24 | A kind of outdoor high-capacity low office discharge stream instrument transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420413260.7U CN204117827U (en) | 2014-07-24 | 2014-07-24 | A kind of outdoor high-capacity low office discharge stream instrument transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204117827U true CN204117827U (en) | 2015-01-21 |
Family
ID=52335115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420413260.7U Expired - Fee Related CN204117827U (en) | 2014-07-24 | 2014-07-24 | A kind of outdoor high-capacity low office discharge stream instrument transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204117827U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109360712A (en) * | 2018-11-27 | 2019-02-19 | 保定天威互感器有限公司 | A kind of transformer external current mutual inductor and its application method |
-
2014
- 2014-07-24 CN CN201420413260.7U patent/CN204117827U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109360712A (en) * | 2018-11-27 | 2019-02-19 | 保定天威互感器有限公司 | A kind of transformer external current mutual inductor and its application method |
| CN109360712B (en) * | 2018-11-27 | 2023-10-17 | 保定天威互感器有限公司 | External current transformer for transformer and application method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201514851U (en) | Outdoor self-excited source three-phase combined electronic transducer metering device | |
| CN204117833U (en) | A kind of outdoor individual event metering current voltage combination transformer | |
| CN202084421U (en) | Zero sequence current transformer | |
| CN204558232U (en) | Current transformer | |
| CN203799857U (en) | Low-partial-discharge high-capacity post type current transformer | |
| CN204117827U (en) | A kind of outdoor high-capacity low office discharge stream instrument transformer | |
| CN201663050U (en) | Electronic combined transformer | |
| CN203013493U (en) | Electronic voltage transformer for high-voltage cubicle type gas insulated switchgear | |
| CN102360891A (en) | Multi-transformation ratio current transformer | |
| CN203444967U (en) | Three-phase four-wire split-assembling epoxy resin poured dry voltage transformer | |
| CN204558236U (en) | A kind of three-phase integrated zero sequence current mutual inductor | |
| CN209357549U (en) | Outdoor compound insulation current transformer | |
| CN210837357U (en) | Integrated injection silicone rubber composite insulation outdoor current transformer | |
| CN203055652U (en) | Combined type mutual inductor | |
| CN204668129U (en) | A kind of few oil type voltage transformer | |
| CN203799859U (en) | Outdoor bus type current transformer | |
| CN204441079U (en) | A kind of novel measurement power taking Current Transformer | |
| CN202084414U (en) | Combined-type zero sequence current mutual inductor | |
| CN202758735U (en) | Three-phase integrated type current transformer for intelligent user switch for dividing | |
| CN201549359U (en) | Fully-closed low voltage dry-type voltage transformer | |
| CN201252000Y (en) | Fully-closed multi-winding current transformer | |
| CN201590322U (en) | Anti-foul voltage transformer with small partial discharge | |
| CN202585084U (en) | Novel 20KV low-magnetic flux combined voltage transformer | |
| CN203366976U (en) | Dry type voltage transformer for electric locomotive | |
| CN214099387U (en) | V-shaped wiring combined transformer for outdoor 35kV metering |
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: 20150121 Termination date: 20160724 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |