CN206583955U - A kind of multi-function electronic current-voltage transformer - Google Patents
A kind of multi-function electronic current-voltage transformer Download PDFInfo
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- CN206583955U CN206583955U CN201720177689.4U CN201720177689U CN206583955U CN 206583955 U CN206583955 U CN 206583955U CN 201720177689 U CN201720177689 U CN 201720177689U CN 206583955 U CN206583955 U CN 206583955U
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- voltage
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- divider
- voltage transformer
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Abstract
The utility model is related to transformer and manufactures and designs field, particularly a kind of multi-function electronic current-voltage transformer.Including being arranged at top and being fixedly installed in the current transformer on conductive metal pipe and the electronic type voltage transformer of bottom, current transformer is two, respectively phase current and zero sequence current mutual inductor, including mutual inductor coil and electric current secondary singal output lead；Electronic type voltage transformer has two, and respectively phase voltage and zero sequential potential transformer, including two high-voltage bleeders being arranged in parallel, divider earth terminal are connected with voltage secondary singal output lead；It is provided with the middle of the iron core of mutual inductor coil on the through hole passed through for the conductive metal pipe, conductive metal pipe and is cased with being conductively connected and fixed becket, becket is connected with divider high-pressure side by stud and conducts electric high pressure.This product function admirable, efficiently solves the split type electric current of in the market and voltage transformer product installs the problems such as cumbersome, cost of manufacture is high, performance difference is big.
Description
Technical field
The utility model is related to transformer technical field, more particularly to a kind of multi-function electronic current-voltage 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 current transformers are mainly using the design principle of micro energy lose iron-core coil and Rogowski coil.
10kV electronic type voltage transformers are mainly using the principle of electric resistance partial pressure or capacitance partial pressure or resistive-capacitive voltage divider.In the market
10kV current transformers, electronic type voltage transformer belong to stand-alone product, and product installs comparatively laborious, and cost of manufacture is higher, and
And the electronic mutual inductor performance difference occurred in market is larger.
Utility model content
It is not enough for more than, the multi-function electronic current-voltage transformer that the utility model is provided, by current transformer
With electronic type voltage transformer integrated design, have two kinds of functions of Current Voltage concurrently, efficiently solve problem above.
The technical solution of the utility model is：
A kind of multi-function electronic current-voltage transformer, includes current transformer and the electronic type voltage mutual inductance of integral type
Device, it is characterised in that the current transformer is two, respectively measurement or protection single-phase current transformer and zero-sequence current
Transformer, is arranged at top and while be fixedly installed on conductive metal pipe, each current transformer include mutual inductor coil and
The electric current secondary singal output lead drawn from mutual inductor coil；The electronic type voltage transformer is two, is respectively measured
With single-phase potential transformer and zero sequential potential transformer, bottom is arranged at, each electronic type voltage transformer includes high pressure partial pressure
Device, two high-voltage bleeders are arranged in parallel, and the high-voltage bleeder is divider high-pressure side close to one end of mutual inductor coil, far
One end from mutual inductor coil is divider earth terminal, and the divider earth terminal is connected with voltage secondary singal output lead；
The through hole passed through for the conductive metal pipe, the conductive metal pipe and high pressure are provided with the middle of the iron core of the mutual inductor coil
Becket is cased with the perpendicular structure of divider, conductive metal pipe, the becket is connected solid with conductive metal pipe reliable conductive
It is fixed, and be connected by stud with divider high-pressure side and conduct electric high pressure；The multi-function electronic Current Voltage mutual inductance
Insulating materials is filled at device internal voids, lower end is connected with fairlead, and the electric current secondary singal output lead and voltage are secondary
Signal output lead is drawn 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 current-voltage transformer lower end sets ground connection barrier metal cover, and the ground connection barrier metal cover is by being grounded spiral shell
Bolt is connected with divider earth terminal.
The insulating materials is electrically insulating silicone rubber or epoxy resin.
The becket material is that stainless steel, copper, aluminium, aluminium alloy, iron or silver any of are worked as.
The mutual inductor coil is minicrystal iron core coil or silicon steel coil or Rogowski coil.
The high-voltage bleeder is resitstance voltage divider or capacitive divider or RC divider.
The fairlead is stainless steel tube.
Both are effectively combined by the utility model on the basis of ripe current transformer and electronic type voltage transformer
Together there is provided a kind of electronic current-voltage combination transformer, install simple with small volume, low manufacture cost, product
The advantages of；And the current transformer of this combined current-voltage transformer uses low-power consumption coil, voltage transformer uses high pressure
Voltage divider principle, has the advantages that high accuracy, small volume, lightweight.
Brief description of the drawings
Fig. 1 is the utility model electronic current voltage transformer structure top view；
Fig. 2 is Fig. 1 along line B-B 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 embodiment one of the present utility model and embodiment two.
Embodiment one, with reference to Fig. 1 and Fig. 2, multi-function electronic current-voltage transformer is the current transformer of integral type
And electronic type voltage transformer, current transformer is arranged at top, is the combination of phase current mutual inductor and zero sequence current mutual inductor,
Wherein phase current mutual inductor is used to measuring or protecting phase current, and zero sequence current mutual inductor is used to measure zero-sequence current.Including two
Silicon steel core mutual inductor coil 11 and the electric current secondary singal output lead 12 drawn respectively from two mutual inductor coils 11.
Electronic type voltage transformer is arranged at bottom, there is two, respectively the phase voltage transformer for measuring phase voltage
With the zero sequential potential transformer for measuring residual voltage, include the capacitive divider 21 of two parallel connection arrangements, the electricity
It is divider high-pressure side 211 to hold divider 21 close to one end of mutual inductor coil 11, and one end away from mutual inductor coil 11 is to divide
Depressor earth terminal 212, the divider earth terminal 212 is connected with voltage secondary singal output lead 213；Two capacitive dividers
21 and electric current secondary singal output lead 12 be parallel construction, distance between the two is 10mm.
Multi-function electronic current-voltage transformer is using a punching bus-type structure, and Primary Conductor is also cross two
The hollow conductive metal pipe 3 of the individual central through-hole 13 of mutual inductor coil 11, the conductive metal pipe 3 and two capacitive dividers 21
Be cased with perpendicular structure, conductive metal pipe 3 on metal iron hoop 31, the metal iron hoop 31 have screwed hole, by bolt with
The reliable conductive of conductive metal pipe 3 is connected, and metal iron hoop 31 is connected simultaneously by stud post 32 with divider high-pressure side 211
The electric high pressure of conduction；Epoxy resin, lower end and stainless steel are filled at the multi-function electronic current-voltage transformer internal voids
Pipe 34 is connected, and the electric current secondary singal output lead 12 and voltage secondary singal output lead 213 pass through the hole of stainless steel tube 34
Draw.
Multi-function electronic current-voltage transformer lower end sets ground connection barrier metal cover 22, the ground connection barrier metal cover
22 are connected by earth stud 23 with divider earth terminal 212.
Embodiment two, with reference to Fig. 1 and Fig. 2, multi-function electronic current-voltage transformer is the current transformer of integral type
And electronic type voltage transformer, current transformer is arranged at top, is the combination of phase current mutual inductor and zero sequence current mutual inductor,
Wherein phase current mutual inductor is used to measuring or protecting phase current, and zero sequence current mutual inductor is used to measure zero-sequence current.Including two
Minicrystal iron core mutual inductor coil 11 and the electric current secondary singal output lead 12 drawn respectively from two mutual inductor coils 11.
Electronic type voltage transformer is arranged at bottom, there is two, respectively the phase voltage transformer for measuring phase voltage
With the zero sequential potential transformer for measuring residual voltage, include the resitstance voltage divider 21 of two parallel connection arrangements, the electricity
It is divider high-pressure side 211 to hinder divider 21 close to one end of mutual inductor coil 11, and one end away from mutual inductor coil 11 is to divide
Depressor earth terminal 212, the divider earth terminal 212 is connected with voltage secondary singal output lead 213；Two resitstance voltage dividers
21 and electric current secondary singal output lead 12 be parallel construction, distance between the two is 20mm.
Multi-function electronic current-voltage transformer is using a punching bus-type structure, and Primary Conductor is also cross two
The hollow conductive metal pipe 3 of the individual central through-hole 13 of mutual inductor coil 11, the conductive metal pipe 3 and two capacitive dividers 21
Be cased with perpendicular structure, conductive metal pipe 3 on metal iron hoop 31, the metal iron hoop 31 have screwed hole, by bolt with
The reliable conductive of conductive metal pipe 3 is connected, and metal iron hoop 31 is connected and passed with divider high-pressure side 211 by stud 32
Conductive high pressure；Electrically insulating silicone rubber, lower end and stainless steel are filled at the multi-function electronic current-voltage transformer internal voids
Pipe 34 is connected, and the electric current secondary singal output lead 12 and voltage secondary singal output lead 213 pass through the hole of stainless steel tube 34
Draw.
Multi-function electronic current-voltage transformer lower end sets ground connection barrier metal cover 22, the ground connection barrier metal cover
22 are connected by earth stud 23 with divider earth terminal 212.
Mutual inductor coil of the present utility model is low-power consumption coil, and with very high transformer precision, voltage uses high pressure
Voltage divider principle, with high accuracy, small volume, it is lightweight the features such as.Multi-function electronic Current Voltage combination of the present utility model
Formula transformer efficiently solves 10KV current transformers in the market and voltage transformer product installs cumbersome, cost of manufacture
It is high, the problems such as performance difference is big, a kind of new-style electronic Current Voltage combination transformer of function admirable is provided for market.
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 multi-function electronic current-voltage transformer, includes current transformer and the electronic type voltage mutual inductance of integral type
Device, it is characterised in that the current transformer is two, respectively measurement or protection single-phase current transformer and zero-sequence current
Transformer, is arranged at top and while is fixedly installed in conductive metal pipe（3）On, each current transformer includes mutual inductor coil
（11）With from mutual inductor coil（11）The electric current secondary singal output lead of extraction（12）；The electronic type voltage transformer is two
Individual, respectively measurement single-phase potential transformer and zero sequential potential transformer are arranged at bottom, each electronic type voltage transformer
Including high-voltage bleeder（21）, two high-voltage bleeders（21）It is arranged in parallel, the high-voltage bleeder（21）Close to transformer line
Circle（11）One end be divider high-pressure side（211）, away from mutual inductor coil（11）One end be divider earth terminal（212）,
The divider earth terminal（212）It is connected with voltage secondary singal output lead（213）；The mutual inductor coil（11）Iron core
Centre, which is provided with, supplies the conductive metal pipe（3）The through hole passed through（13）, the conductive metal pipe（3）With high-voltage bleeder（21）
Perpendicular structure, conductive metal pipe（3）On be cased with becket（31）, the becket（31）With conductive metal pipe（3）Reliably lead
Electrical connection is fixed, and passes through stud（32）With divider high-pressure side（211）Connect and conduct electric high pressure；The multi-functional electricity
Insulating materials is filled at type current voltage transformer internal voids（33）, lower end and fairlead（34）Connection, the electric current two
Secondary signal output lead（12）With voltage secondary singal output lead（213）Through fairlead（34）Draw.
2. multi-function electronic current-voltage transformer as claimed in claim 1, it is characterised in that the high-voltage bleeder
（21）
With electric current secondary singal output lead（12）For parallel construction, distance between the two is 2-60mm.
3. multi-function electronic current-voltage transformer as claimed in claim 2, it is characterised in that the high-voltage bleeder
（21）With electric current secondary singal output lead（12）The distance between be 10-30mm.
4. multi-function electronic current-voltage transformer as claimed in claim 1, it is characterised in that the 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.
5. multi-function electronic current-voltage transformer as claimed in claim 1, it is characterised in that the insulating materials（33）
For electrically insulating silicone rubber or epoxy resin.
6. multi-function electronic current-voltage transformer as claimed in claim 1, it is characterised in that the becket（31）Material
Matter is that stainless steel, copper, aluminium, aluminium alloy, iron or silver any of are worked as.
7. multi-function electronic current-voltage transformer as claimed in claim 1, it is characterised in that the mutual inductor coil
（11）For minicrystal iron core coil or silicon steel coil or Rogowski coil.
8. multi-function electronic current-voltage transformer as claimed in claim 1, it is characterised in that the high-voltage bleeder
（21）For resitstance voltage divider or capacitive divider or RC divider.
9. multi-function electronic current-voltage transformer as claimed in claim 1, it is characterised in that the fairlead（34）For
Stainless steel tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720177689.4U CN206583955U (en) | 2017-02-27 | 2017-02-27 | A kind of multi-function electronic current-voltage transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720177689.4U CN206583955U (en) | 2017-02-27 | 2017-02-27 | A kind of multi-function electronic current-voltage transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206583955U true CN206583955U (en) | 2017-10-24 |
Family
ID=60091595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720177689.4U Expired - Fee Related CN206583955U (en) | 2017-02-27 | 2017-02-27 | A kind of multi-function electronic current-voltage transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206583955U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107843760A (en) * | 2017-10-26 | 2018-03-27 | 武汉三龙天成电力设备有限公司 | A kind of facies tract zero sequence AC voltage sensor of resistance-capacitance differential pressure type three |
| CN108181493A (en) * | 2018-03-06 | 2018-06-19 | 浙江天际互感器有限公司 | A kind of resistance-capacitance differential pressure type residual voltage sensor |
-
2017
- 2017-02-27 CN CN201720177689.4U patent/CN206583955U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107843760A (en) * | 2017-10-26 | 2018-03-27 | 武汉三龙天成电力设备有限公司 | A kind of facies tract zero sequence AC voltage sensor of resistance-capacitance differential pressure type three |
| CN108181493A (en) * | 2018-03-06 | 2018-06-19 | 浙江天际互感器有限公司 | A kind of resistance-capacitance differential pressure type residual voltage sensor |
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|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20171024 |