CN207663925U - A kind of suppression mode of resonance threephase potential transformer that can be docked with ring main unit - Google Patents
A kind of suppression mode of resonance threephase potential transformer that can be docked with ring main unit Download PDFInfo
- Publication number
- CN207663925U CN207663925U CN201721356518.4U CN201721356518U CN207663925U CN 207663925 U CN207663925 U CN 207663925U CN 201721356518 U CN201721356518 U CN 201721356518U CN 207663925 U CN207663925 U CN 207663925U
- Authority
- CN
- China
- Prior art keywords
- phase
- coil
- primary coil
- resonance
- main unit
- 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
Links
- 230000001629 suppression Effects 0.000 title claims abstract description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 12
- 239000003822 epoxy resin Substances 0.000 claims abstract description 11
- 230000001939 inductive effect Effects 0.000 claims abstract description 5
- 230000007935 neutral effect Effects 0.000 claims abstract description 4
- 238000004804 winding Methods 0.000 claims description 13
- 238000009413 insulation Methods 0.000 claims description 6
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 claims description 5
- 230000011218 segmentation Effects 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims 1
- 239000007924 injection Substances 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000000605 extraction Methods 0.000 abstract description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 125000003700 epoxy group Chemical group 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Landscapes
- Transformers For Measuring Instruments (AREA)
Abstract
A kind of suppression mode of resonance threephase potential transformer that can be docked with ring main unit, including R shaped iron cores, three-phase primary coil and three-phase secondary coil.Three-phase primary coil and three-phase secondary coil use star-connection mode around being located on R shaped iron cores, and neutral point is grounded through inductive coil.Three leads of three-phase primary coil are separately connected once fuse.Secondary wiring terminals whole concentrated setting in secondary terminals terminal box, by stuffing-box drawn by the secondary cable of extraction.Poured into a mould using epoxide resin vacuum integral in outside.The utility model can meet the technology requirement that state's net merges ring main unit first and second.It can especially remain to effectively inhibit various resonance conditions when the variation of power grid complexity, resonance are strong, ensure the high-precision of metering, ensure the reliability service of electrical equipment.
Description
Technical field
The utility model is related to a kind of mutual inductors, more particularly to a kind of suppression mode of resonance three-phase electricity that can be docked with ring main unit
Press mutual inductor.The technology requirement that state's net merges ring main unit first and second can be met.
Background technology
There are the situations such as harmonic wave and three-phase load unbalance in national grid, especially urban distribution network, to 10kV in operation
Metering, the monitoring of ring main unit bring difficulty.Voltage transformer used at present cannot preferably meet state's net to ring main unit one, two
, it is poor to there is power grid in operation harmonic wave adaptability in the technology requirement of secondary fusion.State's net is measured therefore, it is necessary to a kind of
It when with monitoring, adapts under the situation of change of power grid complexity, can ensure to measure, and can effectively inhibit various resonance, ensure
The threephase potential transformer of the reliability service of electrical equipment.
Invention content
A kind of suppression mode of resonance threephase potential transformer that can be docked with ring main unit, including iron core, three-phase primary coil and three
Phase secondary coil, it is characterised in that：
The iron core is R shaped iron cores, and the no-load loss of iron core and no-load current is made to be greatly reduced, and improves product bringing onto load energy
Power.Three-phase primary coil and three-phase secondary coil use star-connection mode around being located on R shaped iron cores, and neutral point is through perception
Coil is grounded.Three leads of three-phase primary coil pass through three fuse mounting bases and three primary fusing respectively
Device connects, and a fuse is installed in corresponding fuse mounting base.The lead and three-phase of three-phase primary coil once fuse
Device mounting base is individually enclosed in three elbow-type epoxy resins insulation columns.Three fuses pass through three elbow-type epoxies respectively
Mounting hole on insulation resin column is inserted into three fuse mounting bases（User provides）.
Secondary wiring terminals are all installed concentratedly in secondary terminals terminal box, can carry out lead sealing with capping, extraction
Secondary cable is drawn by stuffing-box.Poured into a mould using epoxide resin vacuum integral, it can be achieved that integral replacing, facilitates installation in outside
Inspection.Wherein：
First winding is using same layer segmentation winding mode around being located on R shaped iron cores.This wiring method can reduce stray electrical
Hold distribution etc., keeps product partial discharge small, service life is long.It is respectively arranged on the winding of three-phase primary coil and three-phase secondary coil
Grading ring makes field strength be uniformly distributed.
The utility model is inserted into once molten device when using running, in fuse mounting base of mutual inductor three-phase A, B, C
(disconnected insurance, user provide）, fusing, which is insured, to be connected by primary coil fuse base with first winding, and first winding passes through iron core
Voltage signal and electricity 220V power supplies are generated in secondary winding.
Type of device：
Indoor technical parameter：
Voltage ratio：10√3/0.1/√3/0.22/√3/0.1 k V
Accuracy class：0.2/3/6P
Rated output capacity： 30/500/100VA
Frequency：50/60Hz
The advantages of the utility model：
The utility model is used for 10kV ring main units.The utility model secondary coil can provide metering, monitoring and power supply
Winding can meet the technology requirement that state's net merges ring main unit first and second.It especially can be strong in the variation of power grid complexity, resonance
It when strong, remains to effectively inhibit various resonance conditions, ensures the high-precision of metering, ensure the reliability service of electrical equipment.
Description of the drawings
Fig. 1 is that a kind of embodiment of the utility model watches figure attentively.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is the right view of Fig. 1.
Specific implementation mode
A kind of suppression mode of resonance threephase potential transformer that can be docked with ring main unit, including R shaped iron cores 7, three-phase primary coil 4
With three-phase secondary coil 6, it is characterised in that：
For three-phase secondary coil 6 around being located on R shaped iron cores 7, three-phase primary coil 4 is secondary around three-phase is located at through main insulating layer 5
It is the star row mode of connection on coil 6.First winding is using same layer segmentation winding mode around being located on three-phase secondary coil 6.Three-phase
Primary coil neutral point 12 is grounded through inductive coil 10.Wherein：It is the primary coil N-terminal earth point 1 of three-phase primary coil 4, primary
The lead in coil O terminations place 2 is individually enclosed in two king-posts 13.
Three leads of three-phase primary coil 4 are respectively through three fuse mounting bases 3 and three fuses 11
Connection, three leads of three-phase primary coil 4 and three fuse mounting bases 3 are individually enclosed in band and once fuse
In the elbow-type epoxy resins insulation column 14 of device jack.
It is respectively arranged with grading ring 15 on the winding of three-phase primary coil 4 and three-phase secondary coil 6.
R shaped iron cores 7, three-phase primary coil 4, three-phase secondary coil 6 and inductive coil 10 are integral by poured with epoxy resin
Structure, epoxy resin poured body are shell 16, and shell 16 is the whole of one-time cast-forming with elbow-type epoxy resins insulation column 14
Body structure.16 outer wall lower part of shell is fixed with secondary terminals terminal box 8.Secondary wiring terminals 9 are provided entirely in secondary terminals and connect
In wire box 8, three-phase secondary coil 6 according to measure and monitoring etc. use setting lead respectively in secondary terminals terminal box 8
Secondary wiring terminals 9 connect.
Claims (3)
1. a kind of suppression mode of resonance threephase potential transformer that can be docked with ring main unit, including R shaped iron cores (7), three-phase primary coil
(4) and three-phase secondary coil (6), it is characterised in that：
Three-phase secondary coil (6) is around being located on R shaped iron cores (7), and three-phase primary coil (4) is through main insulating layer (5) around being located at three-phase
It is the star row mode of connection on secondary coil (6)；Three-phase primary coil neutral point (12) is grounded through inductive coil (10)；Wherein：Three
Primary coil (N) termination place (1) of phase primary coil (4), the lead of primary coil (O) termination place (2) are individually enclosed in
In two king-posts (13)；Three leads of three-phase primary coil (4) are respectively through three fuse mounting bases (3) and three one
Secondary fuse (11) connection, three leads of three-phase primary coil (4) and three fuse mounting bases (3) are sealed respectively
In band once the elbow-type epoxy resins insulation column (14) of fuse jack；
R shaped iron cores (7), three-phase primary coil (4), three-phase secondary coil (6) and inductive coil (10) by poured with epoxy resin at
Overall structure, epoxy resin poured body are shell (16), and shell (16) is once to pour with elbow-type epoxy resins insulation column (14)
The overall structure of injection forming；Shell (16) outer wall lower part is fixed with secondary terminals terminal box (8), and secondary wiring terminals (9) are all
Setting in the secondary terminals terminal box (8), three-phase secondary coil (6) according to measure and the lead of the use such as monitoring setting respectively with
Secondary wiring terminals 9 in secondary terminals terminal box 8 connect.
2. a kind of suppression mode of resonance threephase potential transformer that can be docked with ring main unit according to claim 1, feature exist
In：
It is respectively arranged with grading ring (15) on the winding of three-phase primary coil (4) and three-phase secondary coil (6).
3. a kind of suppression mode of resonance threephase potential transformer that can be docked with ring main unit according to claim 1, feature exist
In：
First winding is using same layer segmentation winding mode around being located on three-phase secondary coil (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721356518.4U CN207663925U (en) | 2017-10-20 | 2017-10-20 | A kind of suppression mode of resonance threephase potential transformer that can be docked with ring main unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721356518.4U CN207663925U (en) | 2017-10-20 | 2017-10-20 | A kind of suppression mode of resonance threephase potential transformer that can be docked with ring main unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207663925U true CN207663925U (en) | 2018-07-27 |
Family
ID=62938445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721356518.4U Expired - Fee Related CN207663925U (en) | 2017-10-20 | 2017-10-20 | A kind of suppression mode of resonance threephase potential transformer that can be docked with ring main unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207663925U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107731500A (en) * | 2017-10-20 | 2018-02-23 | 湖北大二互科技股份有限公司 | A kind of suppression mode of resonance threephase potential transformer that can be docked with ring main unit |
-
2017
- 2017-10-20 CN CN201721356518.4U patent/CN207663925U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107731500A (en) * | 2017-10-20 | 2018-02-23 | 湖北大二互科技股份有限公司 | A kind of suppression mode of resonance threephase potential transformer that can be docked with ring main unit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204558232U (en) | Current transformer | |
| CN202758727U (en) | Anti-resonance voltage transformer | |
| CN207800347U (en) | Distribution automation three-phase zero sequence integral type anti-resonance potential transformer | |
| CN207663925U (en) | A kind of suppression mode of resonance threephase potential transformer that can be docked with ring main unit | |
| CN206976140U (en) | Minimize outdoor three-phase anti-ferromagnetic resonance voltage transformer | |
| CN102226974B (en) | Voltage transformer capable of eliminating ferromagnetic resonance | |
| CN208093344U (en) | A kind of dc circuit breaker energy supply transformer | |
| CN202796409U (en) | Dry type voltage transformer for switchgears | |
| CN207663884U (en) | A kind of 20kV ring main units threephase potential transformer | |
| CN205670502U (en) | Three-phase hexa-atomic part Current Voltage Split assembled transformer | |
| CN107731500A (en) | A kind of suppression mode of resonance threephase potential transformer that can be docked with ring main unit | |
| CN208478095U (en) | Ring network cabinet antiresonance type three-phase and four-line type voltage transformer | |
| CN204117823U (en) | A kind of ring main unit dedicated potential transformer | |
| CN220290624U (en) | Combined three-phase current transformer | |
| CN201590322U (en) | Anti-foul voltage transformer with small partial discharge | |
| CN204558236U (en) | A kind of three-phase integrated zero sequence current mutual inductor | |
| CN207425577U (en) | A kind of voltage transformer | |
| CN205810565U (en) | A kind of metal shell three-phase ground voltage transformer | |
| CN201946424U (en) | An indoor dry anti-ferromagnetic resonance three-phase voltage mutual-inductor | |
| CN203871171U (en) | Combined type mutual inductor | |
| CN202758735U (en) | Three-phase integrated type current transformer for intelligent user switch for dividing | |
| CN203799859U (en) | Outdoor bus type current transformer | |
| CN105957704A (en) | Three-phase grounded voltage transformer with metal shell | |
| CN203895262U (en) | Outdoor composite insulation current and voltage combined transformer | |
| CN205670500U (en) | Outdoor three-phase 4PT voltage transformer |
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: 20180727 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |