CN203134547U - Epoxy resin pouring compound type integral three-phase voltage transformer - Google Patents
Epoxy resin pouring compound type integral three-phase voltage transformer Download PDFInfo
- Publication number
- CN203134547U CN203134547U CN 201320049335 CN201320049335U CN203134547U CN 203134547 U CN203134547 U CN 203134547U CN 201320049335 CN201320049335 CN 201320049335 CN 201320049335 U CN201320049335 U CN 201320049335U CN 203134547 U CN203134547 U CN 203134547U
- Authority
- CN
- China
- Prior art keywords
- epoxy resin
- phase voltage
- voltage transformer
- insulating protecting
- external 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
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Abstract
Provided is an epoxy resin pouring compound type integral three-phase voltage transformer. The epoxy resin pouring compound type integral three-phase voltage transformer is used for measurement of electric energy and voltage, relay protection and insulation monitoring in neutral point non-effectively grounded electric power systems with voltages equal to 10kV or lower than 10kV. The epoxy resin pouring compound type integral three-phase voltage transformer is composed of a combiner body, an inner insulating protecting body, an outer insulating protecting body and an installation support, wherein the combiner body is composed of three single-phase voltage transformer bodies, high-voltage leads and low-voltage leads, an iron core in each single-phase voltage transformer body is integral, the section of each iron core is divided into four steps and is in a staircase shape, the combiner body is completely packaged by the inner insulating protecting body formed by epoxy resin mixture in a vacuum pouring mode, the outer insulating protecting body formed by high temperature vulcanized silicone rubber in a compressed mode is adhered to the outer surface of the inner insulating protecting body, and the installation support, the inner insulating protecting body and the outer insulating protecting body are connected with one another through fastening bolts.
Description
Technical field
The utility model belongs to the high voltage transformation equipment in the electric power system, makes electric energy, voltage measurement, relaying protection and insulating monitoring at 10kV and in subordinate's system with non effectively earth ed neutral and uses.
Background technology
At present, the iron core of plain edition threephase potential transformer is generally laminated core or is formed by two C shape iron core butt joints, and iron core excitation and the eddy current loss of these structures are bigger, directly cause the threephase potential transformer error precision low, the three phase excitation characteristic does not match, and does not satisfy client's demand.
Summary of the invention
The utility model error precision height, margin of safety is big, when load variations is big, also satisfies the error precision requirement, and can accomplish that the three phase excitation characteristic is easy to coupling, and the filthy regional safe and reliable operation of plateau severe out of doors.
The technical scheme that its technical problem that solves the utility model adopts is: it is made up of combiner body, interior insulating protector, external insulation protective, mounting bracket four major parts; The combiner body is made of three single-phase potential transformer device bodies and high pressure, low-voltage lead; iron core in each single-phase potential transformer device body is integral type; its cross section divides level Four stepped; by the interior insulating protector that the mixture of epoxy resins vacuum pouring forms the combiner body is sealed fully; at the bonding external insulation protective that is formed by the high-temperature silicon disulfide rubber compacting of the outer surface of interior insulating protector, mounting bracket, interior insulating protector, external insulation protective connect by fastening bolt.
The purpose of this utility model also can further realize by following technical proposals.
External insulation protective top is three high-tension insulating bushings that are respectively equipped with five layers of alternate circular full skirt of size, and the middle part is provided with three layers of rectangle full skirt that the cross section is dihedral, and the bottom is provided with a rectangular outlet box, and low-voltage lead is concentrated and drawn in outlet box.
The beneficial effects of the utility model are, the iron core of integral structure, and excitation and eddy current loss are few, and the overvoltage ability is strong, and error precision height, excitation property are easy to coupling.The design of external insulation protective full skirt has farthest strengthened the outside creepage distance of product, out of doors the filthy regional safe and reliable operation of plateau severe.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is front view of the present utility model
Fig. 2 is left view of the present utility model
1. high-tension insulating bushings among the figure, 2. high-voltage connection, 3. circular full skirt, 4. in insulating protector, 5. iron core, 6. rectangle full skirt, 7. single-phase potential transformer device body, 8. external insulation protective, 9. mounting bracket, 10. outlet box, 11. low-voltage leads.
Embodiment
At Fig. 1; in embodiment illustrated in fig. 2; the combiner body is by three single-phase potential transformer device bodies (7) and high-voltage connection (2); low-voltage lead (11) constitutes; iron core (5) in each single-phase potential transformer device body (7) is integral type; its cross section divides level Four stepped; by the interior insulating protector (4) that the mixture of epoxy resins vacuum pouring forms the combiner body is sealed fully; at the bonding external insulation protective (8) that is formed by the high-temperature silicon disulfide rubber compacting of the outer surface of interior insulating protector (4), mounting bracket (9); interior insulating protector (4); external insulation protective (8) connects by fastening bolt.
External insulation protective (8) top is three high-tension insulating bushings (1) that are respectively equipped with five layers of alternate circular full skirt of size (3); the middle part is provided with three layers of rectangle full skirt (6) that the cross section is dihedral; the bottom is provided with a rectangular outlet box (10), and low-voltage lead (11) is concentrated and drawn in outlet box.
Claims (2)
- The compound integral type threephase potential transformer of poured with epoxy resin it by the combiner body; interior insulating protector; the external insulation protective; mounting bracket four most of compositions; it is characterized in that: the combiner body is by three single-phase potential transformer device bodies and high pressure; low-voltage lead constitutes; iron core in each single-phase potential transformer device body is integral type; its cross section divides level Four stepped; by the interior insulating protector that the mixture of epoxy resins vacuum pouring forms the combiner body is sealed fully; at the bonding external insulation protective that is formed by the high-temperature silicon disulfide rubber compacting of the outer surface of interior insulating protector, mounting bracket; interior insulating protector; the external insulation protective connects by fastening bolt.
- 2. the compound integral type threephase potential transformer of poured with epoxy resin according to claim 1; it is characterized in that: external insulation protective top is three high-tension insulating bushings that are respectively equipped with five layers of alternate circular full skirt of size; the middle part is provided with three layers of rectangle full skirt that the cross section is dihedral; the bottom is provided with a rectangular outlet box, and low-voltage lead is concentrated and drawn in outlet box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320049335 CN203134547U (en) | 2013-01-09 | 2013-01-09 | Epoxy resin pouring compound type integral three-phase voltage transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320049335 CN203134547U (en) | 2013-01-09 | 2013-01-09 | Epoxy resin pouring compound type integral three-phase voltage transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203134547U true CN203134547U (en) | 2013-08-14 |
Family
ID=48942498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320049335 Expired - Fee Related CN203134547U (en) | 2013-01-09 | 2013-01-09 | Epoxy resin pouring compound type integral three-phase voltage transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203134547U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109283381A (en) * | 2018-09-29 | 2019-01-29 | 广东米勒电气有限公司 | A kind of electronic voltage transducer and application method |
-
2013
- 2013-01-09 CN CN 201320049335 patent/CN203134547U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109283381A (en) * | 2018-09-29 | 2019-01-29 | 广东米勒电气有限公司 | A kind of electronic voltage transducer and application method |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130814 Termination date: 20210109 |