CN106449072A - Novel mutual inductor for automation of power distribution network - Google Patents
Novel mutual inductor for automation of power distribution network Download PDFInfo
- Publication number
- CN106449072A CN106449072A CN201610858380.1A CN201610858380A CN106449072A CN 106449072 A CN106449072 A CN 106449072A CN 201610858380 A CN201610858380 A CN 201610858380A CN 106449072 A CN106449072 A CN 106449072A
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- CN
- China
- Prior art keywords
- phase
- primary
- coil
- pouring body
- distribution network
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- 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.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/20—Instruments transformers
- H01F38/38—Instruments transformers for polyphase ac
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/06—Mounting, supporting or suspending transformers, reactors or choke coils not being of the signal type
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/29—Terminals; Tapping arrangements for signal inductances
- H01F27/292—Surface mounted devices
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
- H01F27/36—Electric or magnetic shields or screens
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transformers For Measuring Instruments (AREA)
Abstract
A novel mutual inductor for automation of a power distribution network comprises a primary coil, a secondary coil, an insulation pouring body, a primary wiring terminal, a secondary leading-out terminal, a fuse, plate-shaped resistors and a single-phase PT, wherein the primary coil and the secondary coil are wound around an iron core, the insulation pouring body is poured between the primary coil and the secondary coil and at the peripheries of the primary coil and the secondary coil, the primary wiring terminal is connected with the primary coil, the secondary leading-out terminal is connected with the secondary coil, two ends of the fuse are respectively connected with a primary threaded sleeve of the primary wiring terminal and a fuse sleeve, the plate-shaped resistors of three phases A, B and C are arranged in the insulation pouring body, the three phase plate-shaped resistors each is formed by combining a primary resistor, a secondary resistor and a voltage division resistor of a temperature compensation resistor of each phase, the primary coil is connected with the primary wiring terminal through the primary resistor and the fuse, the second coil is connected with the secondary leading-out terminal through the secondary resistor, and the single-phase PT is further arranged in the insulation pouring body and is connected with the phase A or the phase C to provide a 220V voltage for breaking. The novel mutual inductor has the advantages of no magnetic saturation, no resonance, small size and light weight, and the damaged to the mutual inductor caused by ferromagnetic resonance is prevented.
Description
Technical field
The present invention relates to distribution transformer, more particularly to one kind make fault detect and system protection and phase and phase, phase
Novel distribution network automatization transformer with ground voltage monitoring.
Background technology
At present, distribution automation on-pole switch voltage transformer, generally using being three-phase and five-pole combination voltage transformer
It is integrally formed, and also aids in 1 single-phase potential transformer.The voltage transformer uses 3 voltage transformers and adds 1 zero
Sequence voltage transformer, although the ability with certain suppression weakening, but can not tackle the problem at its root, there is often transformer to fry
Accident generation is ruined, power supply reliability has been had a strong impact on, and traditional transformer volume is big, quality is heavy, high cost, is unfavorable for open air
Install on post.The new transformer A, B, C three-phase adopts special piece shape resistance, and relatively conventional electromagnetic transformer does not have electricity
Magnetic saturation, there is no ferromagnetic resonance phenomenon, fundamentally prevented to cause transformer to damage because of power network overvoltage and ferromagnetic resonance,
And 3.25/ √ 3V light current pressure of secondary output, also greatly simplifies secondary detection and protection instrument and meter, and reliability increases.Separately
Outward, provide the voltage transformer of 220V power supply with its cast one, its weight is traditional 1/5, no matter from social benefit or
From economic benefit, its superiority is obvious.
Content of the invention
The technical problem to be solved in the present invention is to provide a kind of no magnetic saturation, resonance free, thoroughly prevented because of overvoltage and
Ferromagnetic resonance causes transformer to damage, small volume, light weight, low cost, the novel distribution network automatization for being easy to Standard type to install
Use transformer.
Using technical scheme be：
A kind of novel distribution network automatization transformer, including iron core, the primary winding being wound on iron core and secondary coil, cast
Between primary winding and secondary coil and the insulation pouring body of periphery, the connection primary connection terminal of primary winding and connecting secondary
The secondary outgoing line end of coil, mounting seat, fuse, plate shape resistance, single-phase PT.Described three-phase primary connection terminal respectively with
Epoxy resin housing is fixed on insulation pouring body, epoxy resin shell extracorporeal set silicone rubber sleeve, upper in epoxy resin housing
End is provided with a thread bush, and lower end is provided with fuse set, and the two ends of the fuse are connected to a thread bush and fusing
Device puts.The plate shape resistance of A, B, C three-phase is provided with the insulation pouring body, and three-phase plate shape resistance is respectively by the once electricity of each phase
The divider resistance of resistance, secondary resistance and thermo-compensator is combined, and primary winding connects once through resistance, a fuse
Binding post is simultaneously fixed on power transmission line on primary connection terminal with primary connection bolt and a thread bush.Secondary coil passes through
Secondary lead wires are through secondary resistance connecting secondary leading-out terminal.Transformer is made to there is no electromagnetism saturation, there is no ferromagnetic resonance phenomenon.Also
Single-phase PT is set in insulation pouring body, single-phase PT connection A phase or C phase, the 220V voltage for cut-offfing is provided, make fault detect and
System protection and phase and phase, phase and ground voltage monitoring, constitute a kind of distribution automation transformer.
Above-mentioned primary connection terminal, iron core, primary winding, secondary coil, plate shape resistance and single-phase PT are by epoxy resin
Insulation mode is poured into a mould becomes holistic insulation pouring body, and small volume is lightweight.
Above-mentioned secondary outgoing line end is provided with secondary outlet box, and secondary outlet box is fixed on insulation pouring body by secondary inserts
On.
Above-mentioned insulation pouring body is equipped with footing inserts, and mounting seat is solid with footing inserts by mounting seat fixing bolt
Fixed.
Above-mentioned mounting seat is fixed with installation suspension ring.
Above-mentioned mounting seat is equipped with earth stud.
Above-mentioned two secondary lid of secondary outlet box peripheral hardware, secondary lid surface is provided with nameplate nameplate screw and secondary outgoing line
Box is fixed.
The present invention constitutes A, B, C three-phase by three special plate shape resistance, make fault detect and system protection and phase and phase,
Phase and ground voltage monitoring, then the 220V voltage for cut-offfing is provided by a single-phase PT, relatively conventional electromagnetic transformer is not present
Electromagnetism saturation, there is no ferromagnetic resonance phenomenon, fundamentally prevented to cause transformer to damage because of power network overvoltage and ferromagnetic resonance
Bad, and 3.25/ √ 3V light current pressure of secondary output, secondary detection and protection instrument and meter is also greatly simplified, safe and reliable, separately
Outward, the voltage transformer of 220V power supply is provided with its cast one, its weight is traditional 1/5, small volume, easy for installation, no
By from social benefit still from economic benefit, its superiority is obvious.
Description of the drawings
Fig. 1 is the structure sectional view of the present invention.
Fig. 2 is the top view of Fig. 1.
Fig. 3 is the side view of Fig. 1.
Fig. 4 is the outside drawing of the present invention.
Fig. 5 is the top view of Fig. 4.
Fig. 6 is the side view of Fig. 4.
Specific embodiment
A kind of novel distribution network automatization transformer, including iron core 17, the primary winding being wound on iron core 15 and secondary
Coil 16, be cast between primary winding and secondary coil and periphery insulation pouring body 21, connection primary winding primary connection
The secondary outgoing line end 13 of terminal 1 and connecting secondary coil, mounting seat 23, fuse 14, plate shape resistance 6, single-phase PT12.Described
Three-phase primary connection terminal 1 be fixed on insulation pouring body 21 with epoxy resin housing 3 respectively, 3 overcoat of epoxy resin housing
Dress silicone rubber sleeve 4, the upper end in epoxy resin housing 3 is provided with a thread bush 2, and lower end is provided with fuse set 5, the fuse
14 two ends are connected on a thread bush 2 and fuse set 5.A, B, C three-phase is provided with the insulation pouring body 21
Plate shape resistance 6, three-phase plate shape resistance 6 is respectively by the partial pressure electricity of a resistance 7, secondary resistance 8 and thermo-compensator 9 of each phase
Resistance is combined, and primary winding 15 connects primary connection terminal 1 and with primary connection bolt 20 through resistance 7, fuse 14
And a thread bush 2 is fixed on power transmission line on primary connection terminal.Secondary coil 16 is by secondary lead wires 10 through secondary resistance 8
Connecting secondary leading-out terminal 13.So that transformer is there is no electromagnetism saturation, there is no ferromagnetic resonance phenomenon, fundamentally prevented because of electricity
Net overvoltage and ferromagnetic resonance cause transformer to damage.Single-phase PT12, single-phase PT12 are also set in insulation pouring body 21 and connect A
Phase or C phase, provide the 220V voltage for cut-offfing, make fault detect and system protection and phase and phase, phase and ground voltage monitoring.Described
Primary connection terminal 1, iron core 17, primary winding 15, secondary coil 16, plate shape resistance 6 and single-phase PT12 are by epoxy resins insulation
Mode is poured into a mould becomes holistic insulation pouring body, and small volume is lightweight.
The secondary outgoing line end 13 is provided with secondary outlet box 19, and secondary outlet box 19 is fixed on insulation by secondary inserts 18 and pours
In injection body 21.Insulation pouring body 21 is equipped with footing inserts 11, and mounting seat 23 is embedding with footing by mounting seat fixing bolt 24
Part 11 is fixed, and mounting seat 23 is fixed with installation suspension ring 22, and mounting seat 23 is equipped with earth stud 28.The secondary outlet box 19
Two secondary lid 27 of peripheral hardware, two secondary lids, 27 surface is provided with the nameplate of nameplate 25 screw 26 and is fixed with secondary outlet box 19, the structure
Become a kind of novel distribution network automatization transformer.
Claims (7)
1. a kind of novel distribution network automatization transformer, including iron core（17）, the primary winding being wound on iron core（15）With two
Secondary coil（16）, be cast between primary winding and secondary coil and periphery insulation pouring body（21）, connection primary winding one
Secondary binding post（1）Secondary outgoing line end with connecting secondary coil（13）, mounting seat（23）, fuse（14）, plate shape resistance
（6）, single-phase PT（12）, it is characterised in that described three-phase primary connection terminal（1）Respectively with epoxy resin housing（3）It is fixed on
Insulation pouring body（21）On, epoxy resin housing（3）Outer suit silicone rubber sleeve（4）, epoxy resin housing（3）Interior upper end is provided with
Thread bush（2）, lower end is provided with fuse set（5）, the fuse（14）Two ends be connected to a thread bush（2）
With fuse set（5）On, the insulation pouring body（21）The plate shape resistance of A, B, C three-phase is inside provided with（6）, three-phase plate shape resistance
（6）Respectively by a resistance of each phase（7）, secondary resistance（8）And thermo-compensator（9）Divider resistance combine, one
Secondary coil（15）Through a resistance（7）, fuse（14）Connection primary connection terminal（1）And use primary connection bolt（20）And one
Secondary thread bush（2）Power transmission line is fixed on primary connection terminal, secondary coil（16）By secondary lead wires（10）Through secondary electricity
Resistance（8）Connecting secondary leading-out terminal（13）, in insulation pouring body（21）Interior single-phase PT is set（12）, single-phase PT（12）Connection A phase or C
Phase, provides the 220V voltage for cut-offfing, and makees fault detect and system protection and phase and phase, phase and ground voltage monitoring.
2. a kind of novel distribution network automatization transformer according to claim 1, it is characterised in that described primary connection
Terminal（1）, iron core（17）, primary winding（15）, secondary coil（16）, plate shape resistance（6）And single-phase PT（12）By epoxy resin
Insulation mode cast becomes holistic insulation pouring body（21）.
3. a kind of novel distribution network automatization transformer according to claim 1, it is characterised in that described secondary outgoing line
End（13）It is provided with secondary outlet box（19）, secondary outlet box（19）By secondary inserts（18）It is fixed on insulation pouring body（21）On.
4. a kind of novel distribution network automatization transformer according to claim 1, it is characterised in that described insulation pouring
Body（21）Equipped with footing inserts（11）, mounting seat（23）By mounting seat fixing bolt（24）With footing inserts（11）Gu
Fixed.
5. a kind of novel distribution network automatization transformer according to claim 1 or 4, it is characterised in that described installation bottom
Seat（23）It is fixed with installation suspension ring（22）.
6. a kind of novel distribution network automatization transformer according to claim 1 or 4, it is characterised in that described installation bottom
Seat（23）Equipped with earth stud（28）.
7. a kind of novel distribution network automatization transformer according to claim 1, it is characterised in that described secondary outgoing line
Box（19）Two secondary lid of peripheral hardware（27）, two secondary lids（27）Surface is provided with nameplate（25）Use nameplate screw（26）With secondary outlet box
（19）Fixing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610858380.1A CN106449072A (en) | 2016-09-29 | 2016-09-29 | Novel mutual inductor for automation of power distribution network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610858380.1A CN106449072A (en) | 2016-09-29 | 2016-09-29 | Novel mutual inductor for automation of power distribution network |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106449072A true CN106449072A (en) | 2017-02-22 |
Family
ID=58170706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610858380.1A Pending CN106449072A (en) | 2016-09-29 | 2016-09-29 | Novel mutual inductor for automation of power distribution network |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106449072A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106971831A (en) * | 2017-04-05 | 2017-07-21 | 科誉德电气（苏州）有限公司 | Voltage transformer |
| CN108962574A (en) * | 2018-06-04 | 2018-12-07 | 湖北大二互科技股份有限公司 | Modularization combined transformers for metering |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101694810A (en) * | 2009-10-28 | 2010-04-14 | 大连中广互感器制造有限公司 | Antiresonant three-phase four-wire integrated casting insulated mutual inductor |
| CN202110940U (en) * | 2011-06-17 | 2012-01-11 | 浙江华建电气有限公司 | Combined transformer |
| CN202758727U (en) * | 2012-07-31 | 2013-02-27 | 大连第二互感器集团有限公司 | Anti-resonance voltage transformer |
| CN203746656U (en) * | 2014-03-03 | 2014-07-30 | 天水长开互感器制造有限公司 | Three-phase anti-resonance voltage transformer |
-
2016
- 2016-09-29 CN CN201610858380.1A patent/CN106449072A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101694810A (en) * | 2009-10-28 | 2010-04-14 | 大连中广互感器制造有限公司 | Antiresonant three-phase four-wire integrated casting insulated mutual inductor |
| CN202110940U (en) * | 2011-06-17 | 2012-01-11 | 浙江华建电气有限公司 | Combined transformer |
| CN202758727U (en) * | 2012-07-31 | 2013-02-27 | 大连第二互感器集团有限公司 | Anti-resonance voltage transformer |
| CN203746656U (en) * | 2014-03-03 | 2014-07-30 | 天水长开互感器制造有限公司 | Three-phase anti-resonance voltage transformer |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106971831A (en) * | 2017-04-05 | 2017-07-21 | 科誉德电气（苏州）有限公司 | Voltage transformer |
| CN108962574A (en) * | 2018-06-04 | 2018-12-07 | 湖北大二互科技股份有限公司 | Modularization combined transformers for metering |
| CN108962574B (en) * | 2018-06-04 | 2023-10-03 | 湖北大二互科技股份有限公司 | Modular combined transformer for metering |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170222 |