CN204991425U - Take outdoor voltage transformer of secondary circuit fuse - Google Patents

Take outdoor voltage transformer of secondary circuit fuse Download PDF

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Publication number
CN204991425U
CN204991425U CN201520770138.XU CN201520770138U CN204991425U CN 204991425 U CN204991425 U CN 204991425U CN 201520770138 U CN201520770138 U CN 201520770138U CN 204991425 U CN204991425 U CN 204991425U
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CN
China
Prior art keywords
circuit fuse
fuse
voltage transformer
band
integral
Prior art date
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Active
Application number
CN201520770138.XU
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Chinese (zh)
Inventor
李涛昌
王仁焘
欧希堂
赵日东
高庆利
贾学锋
张文安
李锋
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Dalian North Instrument Transformer Group Co Ltd
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Dalian North Instrument Transformer Group Co Ltd
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Priority to CN201520770138.XU priority Critical patent/CN204991425U/en
Application granted granted Critical
Publication of CN204991425U publication Critical patent/CN204991425U/en
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Abstract

The utility model relates to an electric power system high pressure voltage measurement device, specifically speaking is a take outdoor voltage transformer of secondary circuit fuse. Iron core, primary winding, secondary winding, sleeve pipe insulated column, secondary terminal box are through epoxy and the silicon rubber compound inslation integral type structure that forms, integral type structure integral erection is on the cell type base, join in marriage in the secondary terminal box and be equipped with secondary circuit fuse device. The utility model discloses take fuse protect function, easy dismounting, insulating stable, resistant pollution flashover, small, compact structure.

Description

Band secondary circuit fuse outdoor voltage transformer
Technical field
The utility model relates to electric power system high tension voltage measurement mechanism, specifically a kind of band secondary circuit fuse outdoor voltage transformer.
Background technology
The supporting outdoor voltage transformer of pole-mounted circuit breaker mainly uses as voltage measurement and transient operation power supply, pushing forward comprehensively especially along with national distribution automation work, various intelligent outdoor pole top switch and demarcation switch adopt in a large number, propose more requirement to outdoor voltage transformer function.Have except requiring product that volume is little, non-oil ultra high vacuum system, band high-voltage and current-limitation fuse, except the function such as non-maintaining, in order to avoid secondary circuit has overload and short circuit fault fault, require that instrument transformer secondary can from tape loop fuse apparatus, avoid secondary circuit and secondary winding to be short-circuited fault, cause device damage and power outage.And current industry does not also have the product of this performance, need especially to develop this performance products, reduce in the operation of outdoor pole top switch, because second loop return wiring error or control element reason cause the risk probability of equipment fault, the overall reliability and safety improving equipment safety operation.
Utility model content
For existing system for distribution network of power automation on-pole switch because the problem of secondary circuit overload or second short circuit fault, the technical problems to be solved in the utility model is to provide a kind of band secondary circuit fuse outdoor voltage transformer.
The technical scheme that the utility model is adopted for achieving the above object is: a kind of band secondary circuit fuse outdoor voltage transformer, iron core, winding, secondary winding, sleeve pipe insulated column, a secondary terminal box form integral structure by epoxy resin and silicon rubber composite insulation, described integral structure integral installation, on grooved base, is fitted with secondary circuit fuse apparatus in described secondary terminal box.
Described secondary circuit fuse apparatus is high temperature plastics screw shell band connecting lead wire form.
Two welding edges of described connecting lead wire have U-shaped binding post.
Described secondary circuit fuse apparatus adopts U-shaped binding post and screw fastener to be fixedly connected with the secondary transition terminal of two in secondary terminal box.
The outermost layer of described integral structure is silastic material, and secondary skin is epoxy resin.
Described integral structure outer surface is provided with silicon rubber umbrella skirt.
Described sleeve pipe insulated column inside envelope is equipped with a high-voltage and current-limitation fuse.
The utility model has the following advantages and beneficial effect:
1, fuse defencive function, easy accessibility is with: interiors of products design autogamy once high-voltage and current-limitation fuse and secondary circuit fuse defencive function; available protecting protection product when secondary circuit overload or secondary loop short circuit fault and system malfunctions can not damage; Rational structure design makes change of fuse dismounting convenient, ensures the safe and reliable operation of complete set of equipments.
2, insulate stable, resistance to pollution flashover: adopt rational structural design, ensure that product has very large surface insulation, silicone rubber insulation material has good tracking resistance and electrical erosion resistance energy, greatly increases pollution flashover voltage, effectively can prevent the generation of pollution flashover fault.
3, little, the compact conformation of volume: secondary circuit fuse apparatus is encapsulated in secondary terminal box inside, and carry out sealing two sleeve pipe insulated column inside with two secondary lids and be sealed with a high-voltage and current-limitation fuse respectively, effectively make use of the space of instrument transformer, small product size is little, compact conformation, reduces the overall dimensions of outdoor pole top switch.
Accompanying drawing explanation
Fig. 1 is the utility model external structure front view;
Fig. 2 is the utility model external structure end view;
Fig. 3 is the utility model internal structure schematic diagram;
In figure: 1. iron core; 2. a winding; 3. secondary winding; 4. a sleeve pipe insulated column; 5. secondary terminal box; 6. base; 7. secondary circuit fuse apparatus; 8. high temperature plastics screw shell; 9. connecting lead wire; 10.U type binding post; 11. 2 transition terminal; 12. epoxy resin; 13. silastic materials; 14. high-voltage and current-limitation fuses; 15. silicon rubber umbrella skirt; 16. 2 secondary lids.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
As Figure 1-3; the utility model has iron core 1, winding 2, secondary winding 3, sleeve pipe insulated column 4, a secondary terminal box 5; epoxy resin and silicon rubber composite insulation is adopted to form integral structure; last integral installation is on grooved base 6; being fitted with secondary circuit fuse apparatus 7 in described secondary terminal box 5, using as preventing secondary loop short circuit error protection.Described secondary circuit fuse apparatus 7 is with connecting lead wire 9 form for high temperature plastics screw shell 8, and porcelain cartridge fuse is equipped with in inside, easy installation and removal.Described high temperature plastics screw shell 8 be with connecting lead wire both ends to be welded with U-shaped binding post 10, cooperation screw fastener and interior two the secondary transition terminal 11 of secondary terminal box 5 fixedly mount, two secondary lids 16 are adopted to encapsulate, sealing is tight reliable, ensures that rainwater can not leak into inside and cause secondary terminals corrosion problem.Described instrument transformer body is the integral structure of epoxy resin 12 and silastic material 13 compound inslation, and product design insulation margin is large, insulate reliable and stable under being applicable to the adverse circumstances such as outdoor operation sleet; No. one time sleeve pipe insulated column 4 inside envelope is equipped with a high-voltage and current-limitation fuse 14, and effectively insulate under playing protection winding and fault buffer action; Body is provided with silicon rubber umbrella skirt 15, effectively can strengthen instrument transformer surface creepage distance, increases insulation level, ensures to there will not be pollution flashover voltage.
The utility model secondary winding 3 is contained on iron core 1 post with winding 2 is concentric around an insulation framework upper rear set, be fixed in casting mold after insulation and buffering wrapping, adjust apart from rear epoxide resin vacuum cast cured explosive and silicon rubber composite insulation integral structure, last integral installation is on grooved base 6.Being fitted with secondary circuit fuse apparatus 7 in secondary terminal box 5, using as preventing secondary loop short circuit error protection.Secondary circuit fuse apparatus 7 is with connecting lead wire 9 form for high temperature plastics screw shell 8, and porcelain cartridge fuse is equipped with in inside, easy installation and removal.High temperature plastics screw shell 8 be with connecting lead wire both ends to be welded with U-shaped binding post 10, cooperation screw fastener and interior two the secondary transition terminal 11 of secondary terminal box 5 fixedly mount, two secondary lids 16 are adopted to encapsulate, sealing is tight reliable, ensures that rainwater can not leak into inside and cause secondary terminals corrosion problem.Instrument transformer body is the integral structure of epoxy resin 12 and silastic material 13 compound inslation, and product design insulation margin is large, insulate reliable and stable under being applicable to the adverse circumstances such as outdoor operation sleet; No. one time sleeve pipe insulated column 4 inside envelope is equipped with a high-voltage and current-limitation fuse 14, and effectively insulate under playing protection winding and fault buffer action; Body is provided with silicon rubber umbrella skirt 15, effectively can strengthen instrument transformer surface creepage distance, increases insulation level, ensures to there will not be pollution flashover voltage.
During assembling, load in a sleeve pipe insulated column 4 of instrument transformer by a high-voltage and current-limitation fuse 14, then carry out envelope and put, integral installation is on grooved base 6.The secondary circuit fuse apparatus 7 U-shaped binding post 10 of connecting lead wire, cooperation screw fastener and interior two the secondary transition terminal 11 of secondary terminal box 5 fixedly mount, and finally adopt two secondary lids 16 to encapsulate, assembly work completes.
The utility model is completely according to a kind of new product of national standard design, adopts and rolls iron core, utilize electromagnetic conversion principle, makes secondary voltage can the situation of change of reflected measurement primary voltage exactly, is transferred to secondary measurement and control device.
The utility model be epoxy resin and silicon rubber composite insulation two sub-band fuse defencive functions, easy for installation, insulate stable, antifouling work, volume are little, compact conformation; various system for distribution network of power automation on-pole switch can be widely used in, use as operating power.

Claims (7)

1. a band secondary circuit fuse outdoor voltage transformer, iron core (1), winding (2), secondary winding (3), sleeve pipe insulated column (4), a secondary terminal box (5) form integral structure by epoxy resin and silicon rubber composite insulation, described integral structure integral installation is on grooved base (6), it is characterized in that, in described secondary terminal box (5), be fitted with secondary circuit fuse apparatus (7).
2. band secondary circuit fuse outdoor voltage transformer according to claim 1, is characterized in that, described secondary circuit fuse apparatus (7) is high temperature plastics screw shell (8) band connecting lead wire (9) form.
3. band secondary circuit fuse outdoor voltage transformer according to claim 2, is characterized in that, two welding edges of described connecting lead wire (9) have U-shaped binding post (10).
4. band secondary circuit fuse outdoor voltage transformer according to claim 3, it is characterized in that, described secondary circuit fuse apparatus (7) adopts U-shaped binding post (10) and screw fastener to be fixedly connected with two secondary transition terminal (11) in secondary terminal box (5).
5. band secondary circuit fuse outdoor voltage transformer according to claim 1, is characterized in that, the outermost layer of described integral structure is silastic material (13), and secondary skin is epoxy resin (12).
6. band secondary circuit fuse outdoor voltage transformer according to claim 1, it is characterized in that, described integral structure outer surface is provided with silicon rubber umbrella skirt (15).
7. band secondary circuit fuse outdoor voltage transformer according to claim 1, is characterized in that, a described sleeve pipe insulated column (4) inside envelope is equipped with a high-voltage and current-limitation fuse (14).
CN201520770138.XU 2015-09-30 2015-09-30 Take outdoor voltage transformer of secondary circuit fuse Active CN204991425U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520770138.XU CN204991425U (en) 2015-09-30 2015-09-30 Take outdoor voltage transformer of secondary circuit fuse

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520770138.XU CN204991425U (en) 2015-09-30 2015-09-30 Take outdoor voltage transformer of secondary circuit fuse

Publications (1)

Publication Number Publication Date
CN204991425U true CN204991425U (en) 2016-01-20

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520770138.XU Active CN204991425U (en) 2015-09-30 2015-09-30 Take outdoor voltage transformer of secondary circuit fuse

Country Status (1)

Country Link
CN (1) CN204991425U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110836994A (en) * 2018-08-15 2020-02-25 大连北方互感器集团有限公司 All-insulation type capacitor voltage transformer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110836994A (en) * 2018-08-15 2020-02-25 大连北方互感器集团有限公司 All-insulation type capacitor voltage transformer

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