CN204257348U - Voltage transformer - Google Patents

Voltage transformer Download PDF

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Publication number
CN204257348U
CN204257348U CN201420830188.8U CN201420830188U CN204257348U CN 204257348 U CN204257348 U CN 204257348U CN 201420830188 U CN201420830188 U CN 201420830188U CN 204257348 U CN204257348 U CN 204257348U
Authority
CN
China
Prior art keywords
iron core
neutral point
copper ring
coils
coil
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
Application number
CN201420830188.8U
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Chinese (zh)
Inventor
郑丽凤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN201420830188.8U priority Critical patent/CN204257348U/en
Application granted granted Critical
Publication of CN204257348U publication Critical patent/CN204257348U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a kind of voltage transformer, comprise coil block, poured with epoxy resin layer, base plate, described coil block comprises stereoscopic triangular iron core and three and to distribute in isosceles triangle the coil be arranged on stereoscopic triangular iron core, described stereoscopic triangular iron core is the integrative-structure that three identical iron core frames piece together, and the centre being positioned at three coils is provided with neutral point merging copper ring, damping resonance eliminator is provided with in this neutral point merging copper ring, and described three coils are all connected on described neutral point merging copper ring by neutral ground lead-in wire, three described coils include secondary coil, be wrapped in the insulating cylinder outside secondary coil, be wrapped in the main insulating layer outside insulating cylinder, be wound on the primary winding outside main insulating layer, described coil block, neutral point merges copper ring, damping resonance eliminator is by poured with epoxy resin integral formation instrument transformer pour mass.The utility model has anti-resonance, structure is simple, performance safety is stable advantage.

Description

Voltage transformer
Technical field
The utility model is specifically related to a kind of voltage transformer.
Background technology
Voltage transformer is mainly used for powering to measuring instrument and protective relaying device, is used for the voltage of measurement circuitry, power and electric energy, or is used for expensive equipment, motor and the transformer when line failure in protection circuit.Voltage transformer is primarily of primary winding, secondary coil, iron core and insulation composition.But the iron core of the employing of existing voltage transformer is mostly annular core, and being wound with coil on this annular core, there is the defect that magnetic circuit is not closed, magnetic flux leakage is large in the voltage transformer of this vibrational power flow.And when circuit generation resonance, easily cause core sataration, cause instrument transformer to burn.
Summary of the invention
The purpose of this utility model is the defect overcoming prior art, provides a kind of and has anti-resonance function, structure is simple, performance safety is stable voltage transformer.
For achieving the above object, the utility model adopts a kind of voltage transformer, comprise coil block, poured with epoxy resin layer, base plate, described coil block comprises stereoscopic triangular iron core and three and to distribute in isosceles triangle the coil be arranged on stereoscopic triangular iron core, described stereoscopic triangular iron core is the integrative-structure that three identical iron core frames piece together, and the centre being positioned at three coils is provided with neutral point merging copper ring, damping resonance eliminator is provided with in this neutral point merging copper ring, and described three coils are all connected on described neutral point merging copper ring by neutral ground lead-in wire, three described coils include secondary coil, be wrapped in the insulating cylinder outside secondary coil, be wrapped in the main insulating layer outside insulating cylinder, be wound on the primary winding outside main insulating layer, described coil block, neutral point merges copper ring, damping resonance eliminator is by poured with epoxy resin integral formation instrument transformer pour mass.
The beneficial effects of the utility model are: existing annular core is improved by this voltage transformer, adopt stereoscopic triangular iron core, and on stereoscopic triangular iron core, be provided with the coil of three distributions in isosceles triangle, and the three-dimensional iron core of this triangle has magnetic circuit symmetry, magnetic resistance is little, loss is little advantage, and the centre this voltage transformer being positioned at three coils is provided with damping resonance eliminator, thus this voltage transformer possesses anti-resonance function, ensure that the security and stability of instrument transformer.
Accompanying drawing explanation
Fig. 1 is the utility model embodiment front view.
Fig. 2 is that the utility model embodiment master looks internal structure.
Fig. 3 is that the utility model embodiment overlooks internal structure.
Embodiment
As Fig. 1, 2, shown in 3, the utility model embodiment is a kind of voltage transformer, comprise coil block, poured with epoxy resin layer 12, base plate 11, described coil block comprises stereoscopic triangular iron core 13 and three and to distribute in isosceles triangle the coil 14 be arranged on stereoscopic triangular iron core 13, described stereoscopic triangular iron core 13 is the integrative-structure that three identical iron core frames piece together, and the centre being positioned at three coils 14 is provided with neutral point merging copper ring 15, damping resonance eliminator 16 is provided with in this neutral point merging copper ring 15, and described three coils 14 are all connected on described neutral point merging copper ring 15 by neutral ground lead-in wire 141, three described coils 14 include secondary coil 142, be wrapped in the insulating cylinder 143 outside secondary coil 142, be wrapped in the main insulating layer 144 outside insulating cylinder 143, be wound on the primary winding 145 outside main insulating layer 144, described coil block, neutral point merges copper ring 15, damping resonance eliminator 16 is by poured with epoxy resin integral formation instrument transformer pour mass 10.Existing annular core is improved by this voltage transformer, adopt stereoscopic triangular iron core, and on stereoscopic triangular iron core, be provided with the coil of three distributions in isosceles triangle, and the three-dimensional iron core of this triangle has magnetic circuit symmetry, magnetic resistance is little, loss is little advantage, and the centre this voltage transformer being positioned at three coils is provided with damping resonance eliminator, thus this voltage transformer possesses anti-resonance function, ensure that the security and stability of instrument transformer.

Claims (1)

1. a voltage transformer, comprise coil block, poured with epoxy resin layer, base plate, it is characterized in that: described coil block comprises stereoscopic triangular iron core and three and to distribute in isosceles triangle the coil be arranged on stereoscopic triangular iron core, described stereoscopic triangular iron core is the integrative-structure that three identical iron core frames piece together, and the centre being positioned at three coils is provided with neutral point merging copper ring, damping resonance eliminator is provided with in this neutral point merging copper ring, and described three coils are all connected on described neutral point merging copper ring by neutral ground lead-in wire, three described coils include secondary coil, be wrapped in the insulating cylinder outside secondary coil, be wrapped in the main insulating layer outside insulating cylinder, be wound on the primary winding outside main insulating layer, described coil block, neutral point merges copper ring, damping resonance eliminator is by poured with epoxy resin integral formation instrument transformer pour mass.
CN201420830188.8U 2014-12-22 2014-12-22 Voltage transformer Expired - Fee Related CN204257348U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420830188.8U CN204257348U (en) 2014-12-22 2014-12-22 Voltage transformer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420830188.8U CN204257348U (en) 2014-12-22 2014-12-22 Voltage transformer

Publications (1)

Publication Number Publication Date
CN204257348U true CN204257348U (en) 2015-04-08

Family

ID=52961627

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420830188.8U Expired - Fee Related CN204257348U (en) 2014-12-22 2014-12-22 Voltage transformer

Country Status (1)

Country Link
CN (1) CN204257348U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106872765A (en) * 2017-04-10 2017-06-20 浦北县金洋电厨具有限公司 Input voltage measurement device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106872765A (en) * 2017-04-10 2017-06-20 浦北县金洋电厨具有限公司 Input voltage measurement device

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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: 20150408

Termination date: 20161222