CN206460867U - A kind of electronic current voltage transformer - Google Patents
A kind of electronic current voltage transformer Download PDFInfo
- Publication number
- CN206460867U CN206460867U CN201720177456.4U CN201720177456U CN206460867U CN 206460867 U CN206460867 U CN 206460867U CN 201720177456 U CN201720177456 U CN 201720177456U CN 206460867 U CN206460867 U CN 206460867U
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- voltage transformer
- divider
- electronic current
- voltage
- electronic
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Abstract
The utility model is related to transformer and manufactures and designs field, particularly a kind of electronic current voltage transformer.Including being arranged at the electronic current mutual inductor on top and the electronic type voltage transformer of bottom, current transformer is fixedly installed on conductive metal pipe, including single measuring coil and electric current secondary singal output lead, precision resister is arranged in parallel on electric current secondary singal output lead；Electronic type voltage transformer includes single high-voltage bleeder, and divider earth terminal is connected with voltage secondary singal output lead；The through hole passed through for conductive metal pipe is provided with the middle of the iron core of measuring coil, conductive metal pipe is conductively connected with divider high-pressure side by being connected conductor, electrically insulating silicone rubber is filled at the electronic current voltage transformer internal voids.This product uses all-silicon rubber die casting dispensable mould molding integral structure, the problem of efficiently solving conventional epoxies product cold cracking, and has excellent insulating properties, superpower resistance to voltage levels and excellent partial discharge.
Description
Technical field
The utility model is related to transformer technical field, more particularly to a kind of electronic current-voltage combination transformer.
Background technology
Transformer is measurement, monitoring, the equipment of relay protection in power system, is widely used in outdoor high-voltage vacuum and breaks
Road device.Because power system is improved constantly in terms of monitoring, control and protection to automation and intelligentized requirement, electronic type
Transformer effectively overcomes the shortcoming of conventional electromagnetic transformer, with small volume, lightweight, transient performance it is good, without ferromagnetic humorous
Shake, without magnetic saturation phenomenon, excellent insulating properties the advantages of, be adapted to electric power digital, intelligent and networking
Need.
At present, middle pressure 10kV electronic current mutual inductors, electronic type voltage transformer belong to stand-alone product, product peace mostly
Fill comparatively laborious, cost of manufacture is higher, and the electronic mutual inductor performance difference occurred in market is larger.In the prior art
Current Voltage combination transformer through having, generally internal to use epoxy resin as insulation, outside is entered with one layer of silicon rubber again
Row cladding, occurs cracking damage phenomenon, it is impossible to use in high and cold, high altitude localities in more than subzero 20 degree, and manufacturing procedure is multiple
Miscellaneous, process-cycle length, cost are high.
Utility model content
Not enough for more than, the electronic current voltage transformer that the utility model is provided is not only mutual by electronic current
Sensor and electronic type voltage transformer are combined, and have two kinds of functions concurrently, and whole for all-silicon rubber die casting disposal molding
Body formula structure, efficiently solves the defect of prior art.
The technical solution of the utility model is：
A kind of electronic current voltage transformer, includes the electronic current mutual inductor and voltage transformer of integral type, its
It is characterised by, the electronic current mutual inductor is arranged at top and is fixedly installed on conductive metal pipe, including single only measurement
It is arranged in parallel on coil and the electric current secondary singal output lead drawn from measuring coil, the electric current secondary singal output lead
Precision resister；The voltage transformer is arranged at bottom, including single high-voltage bleeder, and the high-voltage bleeder is close to measurement
One end of coil is divider high-pressure side, and one end away from measuring coil is divider earth terminal, and the divider earth terminal connects
It is connected to voltage secondary singal output lead；It is provided with the middle of the iron core of the measuring coil for running through that the conductive metal pipe is passed through
Hole, the conductive metal pipe and the perpendicular structure of high-voltage bleeder, conductive metal pipe is with divider high-pressure side by being connected conductor
It is conductively connected；Electrically insulating silicone rubber is filled at the electronic current voltage transformer internal voids, lower end is connected with fairlead, institute
Electric current secondary singal output lead and voltage secondary singal output lead is stated to draw through fairlead.
High-voltage bleeder and electric current the secondary singal output lead is parallel construction, and distance between the two is 2-
60mm, preferably 10-30mm.
The connection conductor is copper conductor, and the conductive connection manner is that conductive metal pipe welding copper conductor is connected to partial pressure
Device high-pressure side, or, copper conductor, which is wrapped on conductive metal pipe, is connected to divider high-pressure side.
The connection conductor is stud or bolt or non-bolt metallic rod, and the conductive connection manner is conducting metal
Pipe is welded or crimping connection conductor, is connected to divider high-pressure side.
The electronic current voltage transformer lower end sets ground connection barrier metal cover, and the ground connection barrier metal cover passes through
Earth stud is connected with divider earth terminal.
The high-voltage bleeder is resitstance voltage divider or capacitive divider or RC divider.
The measuring coil is minicrystal iron core coil or silicon steel coil or Rogowski coil.
The fairlead is stainless steel tube.
The electronic current-voltage combination transformer that the utility model is provided, with small volume, low manufacture cost, product
The advantages of installing simple；And this product uses all-silicon rubber die casting dispensable mould molding integral structure, efficiently solves traditional ring
The problem of oxygen tree fat prod cold cracking, and with excellent insulating properties, superpower resistance to voltage levels, excellent partial discharge and standard
True measurement accuracy.
Brief description of the drawings
Fig. 1 is the utility model electronic current voltage transformer front view；
Fig. 2 is Fig. 1 along line A-A schematic cross-section.
Embodiment
The technique effect of design of the present utility model, concrete structure and generation is made furtherly below with reference to accompanying drawing
It is bright, to be fully understood from the purpose of this utility model, feature and effect.
Fig. 1 and Fig. 2 is the embodiment one and embodiment two of electronic current voltage transformer of the present utility model.
Embodiment one, with reference to Fig. 1 and Fig. 2, electronic current voltage transformer is the electronic current mutual inductor of integral type
And electronic type voltage transformer, the electronic current mutual inductor is arranged at top, including minicrystal iron core measuring coil 11 and from
Height is arranged in parallel on the electric current secondary singal output lead 12 that measuring coil 11 is drawn, the electric current secondary singal output lead 12
Accuracy resistance 14, voltage output is converted into by secondary current output；
The electronic type voltage transformer is arranged at bottom, including resitstance voltage divider 21, and the resitstance voltage divider 21 is close
One end of measuring coil 11 is divider high-pressure side 211, and one end away from measuring coil 11 is divider earth terminal 212, described
Divider earth terminal 212 is connected with voltage secondary singal output lead 213；
Electronic current voltage transformer is using a punching bus-type structure, and Primary Conductor is through current transformer
The hollow conductive metal pipe 3 of the central through-hole 13 of measuring coil 11, the conductive metal pipe 3 and the perpendicular knot of high-voltage bleeder 21
Copper conductor 32 is wound on structure, conductive metal pipe 3, copper conductor 32 is connected to divider high-pressure side 211 and conducts electric high pressure；It is described
Electrically insulating silicone rubber 33 is filled at electronic current voltage transformer internal voids, lower end is connected with stainless steel tube 34, the electric current
Secondary singal output lead 12 and voltage secondary singal output lead 213 are drawn through stainless steel tube 34.
Electronic current voltage transformer lower end sets ground connection barrier metal cover 22, and the ground connection barrier metal cover 22 passes through
Earth stud 23 is connected with divider earth terminal 212.High-voltage bleeder 21 is parallel with electric current secondary singal output lead 12
Structure, distance between the two is 10mm.
Embodiment two, referring still to Fig. 1 and Fig. 2, electronic current voltage transformer is mutual for the electronic current of integral type
Sensor and electronic type voltage transformer, the electronic current mutual inductor are arranged at top, including silicon steel core measuring coil 11
With the electric current secondary singal output lead 12 drawn from measuring coil 11, parallel connection is set on the electric current secondary singal output lead 12
Precision resister 14 is put, secondary current output is converted into voltage output；
The electronic type voltage transformer is arranged at bottom, including capacitive divider 21, and the capacitive divider 21 is close
One end of measuring coil 11 is divider high-pressure side 211, and one end away from measuring coil 11 is divider earth terminal 212, described
Divider earth terminal 212 is connected with voltage secondary singal output lead 213；
Electronic current voltage transformer is using a punching bus-type structure, and Primary Conductor is through current transformer
The hollow conductive metal pipe 3 of the central through-hole 13 of measuring coil 11, the conductive metal pipe 3 and the perpendicular knot of high-voltage bleeder 21
Structure, the direct weld bolt 32 of conductive metal pipe 3 is conductively connected with divider high-pressure side 211 and conducts electric high pressure；The electronic type
Electrically insulating silicone rubber 33 is filled at current-voltage transformer internal voids, lower end is connected with stainless steel tube 34, the secondary letter of the electric current
Number output lead 12 and voltage secondary singal output lead 213 are drawn through the hole of stainless steel tube 34.
Electronic current voltage transformer lower end sets ground connection barrier metal cover 22, and the ground connection barrier metal cover 22 passes through
Earth stud 23 is connected with divider earth terminal 212.High-voltage bleeder 21 is parallel with electric current secondary singal output lead 12
Structure, distance between the two is 20mm.
Electronic current voltage transformer of the present utility model uses all-silicon rubber die casting disposal molding monolithic construction,
With advantages below：
1）Possess good low temperature resistivity energy, solve epoxy resin traditional product cold cracking is utilized in industry well
Problem, can meet and be used in -45 degrees Celsius ~ 80 degree celsius temperature intervals, not aging is not ftractureed, can be in various severe rings
Under border, such as high and cold, high altitude localities is normally used, and security and service life are greatly improved.
2）Excellent insulating property, with excellent partial discharge performance, partial discharge quantity is less than 20PC or 14.4KV under 8.3KV
Lower partial discharge quantity is less than 50PC.
3）With superpower resistance to voltage levels, industrial frequency withstand voltage is up to 48-56KV, hence it is evident that higher than national standard.
Disclosed above is only embodiment of the present utility model, and still, the utility model is not limited to this, any ability
What the technical staff in domain can think change should all fall into protection domain of the present utility model.
Claims (9)
1. a kind of electronic current voltage transformer, includes electronic current mutual inductor and the electronic type voltage mutual inductance of integral type
Device, it is characterised in that the electronic current mutual inductor is arranged at top and is fixedly installed in conductive metal pipe（3）On, including
Single measuring coil（11）With from measuring coil（11）The electric current secondary singal output lead of extraction（12）, the secondary letter of the electric current
Number output lead（12）On be arranged in parallel precision resister（14）；The electronic type voltage transformer is arranged at bottom, including list
High-voltage bleeder（21）, the high-voltage bleeder（21）Close to measuring coil（11）One end be divider high-pressure side（211）,
Away from measuring coil（11）One end be divider earth terminal（212）, the divider earth terminal（212）It is connected with voltage secondary
Signal output lead（213）；The measuring coil（11）Iron core in the middle of be provided with supply the conductive metal pipe（3）What is passed through runs through
Hole（13）, the conductive metal pipe（3）With high-voltage bleeder（21）Perpendicular structure, conductive metal pipe（3）With divider high pressure
End（211）By connecting conductor（32）It is conductively connected；SOI is filled at the electronic current voltage transformer internal voids
Rubber（33）, lower end and fairlead（34）Connection, the electric current secondary singal output lead（12）With the output of voltage secondary singal
Lead（213）Through fairlead（34）Draw.
2. electronic current voltage transformer as claimed in claim 1, it is characterised in that the high-voltage bleeder（21）And electricity
Flow secondary singal output lead（12）For parallel construction, distance between the two is 2-60mm.
3. electronic current voltage transformer as claimed in claim 2, it is characterised in that the high-voltage bleeder（21）And electricity
Flow secondary singal output lead（12）The distance between be 10-30mm.
4. electronic current voltage transformer as claimed in claim 1, it is characterised in that the connection conductor（32）Led for copper
Line, the conductive connection manner is conductive metal pipe（3）Welding or winding copper conductor, are connected to divider high-pressure side（211）.
5. electronic current voltage transformer as claimed in claim 1, it is characterised in that the connection conductor（32）For double end
Bolt or bolt or non-bolt metallic rod, the conductive connection manner are conductive metal pipe（3）Welding or crimping connection conductor
（32）, it is connected to divider high-pressure side（211）.
6. electronic current voltage transformer as claimed in claim 1, it is characterised in that the electronic current voltage mutual inductance
Device lower end sets ground connection barrier metal cover（22）, the ground connection barrier metal cover（22）Pass through earth stud（23）Connect with divider
Ground terminal（212）It is connected.
7. electronic current voltage transformer as claimed in claim 1, it is characterised in that the high-voltage bleeder（21）For electricity
Hinder divider or capacitive divider or RC divider.
8. electronic current voltage transformer as claimed in claim 1, it is characterised in that the measuring coil（11）For crystallite
Iron-core coil or silicon steel coil or Rogowski coil.
9. electronic current voltage transformer as claimed in claim 1, it is characterised in that the fairlead（34）For stainless steel
Pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720177456.4U CN206460867U (en) | 2017-02-27 | 2017-02-27 | A kind of electronic current voltage transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720177456.4U CN206460867U (en) | 2017-02-27 | 2017-02-27 | A kind of electronic current voltage transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206460867U true CN206460867U (en) | 2017-09-01 |
Family
ID=59690338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720177456.4U Expired - Fee Related CN206460867U (en) | 2017-02-27 | 2017-02-27 | A kind of electronic current voltage transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206460867U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107680790A (en) * | 2017-11-06 | 2018-02-09 | 江苏科兴电器有限公司 | A kind of electronic mutual inductor of anti-breakdown charged output |
-
2017
- 2017-02-27 CN CN201720177456.4U patent/CN206460867U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107680790A (en) * | 2017-11-06 | 2018-02-09 | 江苏科兴电器有限公司 | A kind of electronic mutual inductor of anti-breakdown charged output |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170901 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |