CN2502386Y - 0.5 KV outdoor dry type current transformer - Google Patents
0.5 KV outdoor dry type current transformer Download PDFInfo
- Publication number
- CN2502386Y CN2502386Y CN 01266909 CN01266909U CN2502386Y CN 2502386 Y CN2502386 Y CN 2502386Y CN 01266909 CN01266909 CN 01266909 CN 01266909 U CN01266909 U CN 01266909U CN 2502386 Y CN2502386 Y CN 2502386Y
- Authority
- CN
- China
- Prior art keywords
- current transformer
- utility
- insulating protector
- model
- gland
- 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 - Lifetime
Links
- 239000003822 epoxy resin Substances 0.000 claims abstract description 9
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 9
- 238000004804 winding Methods 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims abstract description 6
- 230000001012 protector Effects 0.000 claims description 14
- 210000004907 gland Anatomy 0.000 claims description 6
- 238000009434 installation Methods 0.000 abstract description 3
- 238000009413 insulation Methods 0.000 abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 2
- 238000005259 measurement Methods 0.000 abstract 1
- 238000005266 casting Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
Landscapes
- Housings And Mounting Of Transformers (AREA)
Abstract
The utility model discloses a 0.5 kV outdoor dry-type current mutual inductor, which is composed of a secondary winding (1), a ring-shaped iron core (2) and an insulation protecting body (3). With adopting bus bar structure, the utility model makes the cable of a power supply system as a primary winding, the insulation protecting body (3) forms by adopting outdoor epoxy resin to be casted. The utility model has simple structure, high accuracy of measurement, convenient installation, no oil, whole sealing and no need of maintaining, which can be installed at the load centre in the open air directly.
Description
The utility model belongs to the low pressure converting equipment in the electric power system, is the crucial signal transmission equipment of electric power system electric energy metrical and relaying protection.
At present, the plain edition oil-immersed current transformer is suitable for using indoor and outdoor, and its insulation system mostly is insulating paper and transformer oil compound inslation, and volume is big and heavy, and inflammable, contaminated environment can not be directly installed on load center.Chinese patent ZL 98249687.7 discloses a kind of " Outdoor Dry-Type Current Transformer "; this current transformer adopts the insulating protector of the outdoor type epoxy resin of moulding by casting as current transformer; its surface casting becomes full skirt corrugated; special-purpose closed terminal box is installed at secondary leading-out terminal place; reached miniaturization; no oiling; totally-enclosed; non-maintaining; unattended operation; and can expose the purpose of installation in the open; but this instrument transformer is to design according to the electrical network that is applicable to 10kV voltage; move on the 0.5kV voltage electrical network if be used for; then can increase production cost, its volume even influence the normal mounting use of equipment because the profile of instrument transformer internal structure and insulating protector is too complicated.
The purpose of this utility model is to provide a kind of and can uses out of doors, again the low cost current instrument transformer that can move on the 0.5kV electrical network.
To achieve these goals, the inner bus-type structure that adopts of the utility model does not have one time winding, has only a secondary coil of being made up of secondary winding and belt iron core.
The utility model adopts outdoor type epoxy resin to pour into a mould the insulating protector of current transformer under vacuum environment; in order to reduce the consumption of volume, simplified structure and saving outdoor type epoxy resin; the top of insulating protector is poured into hollow cylinder, and the bottom is poured into simple rectangle.
Because the utility model adopts outdoor type epoxy resin to replace plain edition epoxy resin to make insulating protective layer; make current transformer have the ability of ultraviolet radiation resisting, weathering resistance erosion; no oiling, fire-retardant, antipollution purpose have been realized, long-time running under can be the out of doors full weather conditions.Compare with the 10kV current transformer, the utility model adopts the bus-type structure, does not have one time winding, and insulating protector is simple and compact for structure, thereby greatly reduces the consumption of outdoor type epoxy resin, has reduced production cost.
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is a front view of the present utility model.
Fig. 2 is an end view of the present utility model.
As depicted in figs. 1 and 2; secondary winding 1 of the present utility model is wound on the annular core 2; constitute secondary coil; secondary coil is coated by the insulating protector 3 that adopts outdoor type epoxy resin to pour into a mould under vacuum environment; outer surface of the present utility model top is poured into hollow cylinder, and the bottom is poured into simple rectangle.Lower front side at insulating protector 3 has the secondary connection box that pours into an integrated entity with insulating protector 3; seal by sealing gasket 4 and 6 pairs of secondary connection terminals 8 of gland; the double simultaneously nameplate of doing of gland 6; on the gland bolt 9 lead seal hole is arranged; can effectively prevent stealing; the secondary leading-out terminal is drawn by sealing wire plug 5, make the secondary connection box have good sealing property, has reached the purpose of snow defence, rain-proof dust-proof.Mounting panel 7 is arranged at the bottom of insulating protector 3, and 4 installing holes are arranged on mounting panel 7, and two hole lines are vertical mutually, when installing space is restricted, can adjust the station direction, makes installation more convenient.
Claims (4)
1. 0.5kV Outdoor Dry-Type Current Transformer, comprise by secondary winding (1), annular core (2) and insulating protector (3) and forming, it is characterized in that: secondary winding of the present utility model (1) is wound on the annular core (2), constitute secondary coil, secondary coil is coated by the insulating protector (3) that adopts outdoor type epoxy resin to pour into a mould under vacuum environment, outer surface of the present utility model top is poured into hollow cylinder, and the bottom is poured into simple rectangle; Lower front side at insulating protector (3) has the secondary connection box that pours into an integrated entity with insulating protector (3), by sealing gasket (4) and gland (6) secondary connection terminal (8) is sealed.
2. current transformer as claimed in claim 1 is characterized in that: the double simultaneously nameplate of doing of gland (6), and gland bolt has lead seal hole on (9), can effectively prevent stealing, and the secondary leading-out terminal is drawn by sealing wire plug (5).
3. current transformer as claimed in claim 1, it is characterized in that: mounting panel (7) is arranged at the bottom of insulating protector (3).
4. current transformer as claimed in claim 3, it is characterized in that: 4 installing holes are arranged on mounting panel (7), and two hole lines are vertical mutually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01266909 CN2502386Y (en) | 2001-09-17 | 2001-09-17 | 0.5 KV outdoor dry type current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01266909 CN2502386Y (en) | 2001-09-17 | 2001-09-17 | 0.5 KV outdoor dry type current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2502386Y true CN2502386Y (en) | 2002-07-24 |
Family
ID=33673448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01266909 Expired - Lifetime CN2502386Y (en) | 2001-09-17 | 2001-09-17 | 0.5 KV outdoor dry type current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2502386Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101728074B (en) * | 2008-10-23 | 2011-07-20 | 天津市百利纽泰克电气科技有限公司 | Wrapping technical method for primary shield of bus-type current transformer |
| CN102969723A (en) * | 2012-07-31 | 2013-03-13 | 国家电网公司 | Integrated energy extracting device for power electronic equipment |
| CN104240928A (en) * | 2014-09-18 | 2014-12-24 | 江苏科兴电器有限公司 | All-working-condition type low-voltage current transformer |
| US10285221B2 (en) | 2013-09-17 | 2019-05-07 | Neturen Co., Ltd. | Induction heating coil, induction heating device, and heating method |
-
2001
- 2001-09-17 CN CN 01266909 patent/CN2502386Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101728074B (en) * | 2008-10-23 | 2011-07-20 | 天津市百利纽泰克电气科技有限公司 | Wrapping technical method for primary shield of bus-type current transformer |
| CN102969723A (en) * | 2012-07-31 | 2013-03-13 | 国家电网公司 | Integrated energy extracting device for power electronic equipment |
| CN102969723B (en) * | 2012-07-31 | 2015-06-10 | 国家电网公司 | Integrated energy extracting device for power electronic equipment |
| US10285221B2 (en) | 2013-09-17 | 2019-05-07 | Neturen Co., Ltd. | Induction heating coil, induction heating device, and heating method |
| CN104240928A (en) * | 2014-09-18 | 2014-12-24 | 江苏科兴电器有限公司 | All-working-condition type low-voltage current transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: LIAONING PROVINCE DALIAN ECONOMIC AND TECHNOLOGICA Free format text: FORMER NAME OR ADDRESS: NO. 19, LIAONING PROV ROAD, DALIAN CITY DEVELOPMENT AREA, LIAONING PROVINCE |
|
| CP03 | Change of name, title or address |
Patentee address after: Liaoning Dalian economic and Technological Development Zone 28 residential district Dalian Gold Power Equipment Co., Ltd. Patentee address before: No. 19, Liaoning Road, Dalian Development Zone, Liaoning, China |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20110917 Granted publication date: 20020724 |
|
| DD01 | Delivery of document by public notice |
Addressee: Jiang Demin Document name: Notification of Expiration of Patent Right Duration |