CN108172364A - Low-loss transformer can drop in one kind - Google Patents
Low-loss transformer can drop in one kind Download PDFInfo
- Publication number
- CN108172364A CN108172364A CN201711392704.8A CN201711392704A CN108172364A CN 108172364 A CN108172364 A CN 108172364A CN 201711392704 A CN201711392704 A CN 201711392704A CN 108172364 A CN108172364 A CN 108172364A
- Authority
- CN
- China
- Prior art keywords
- low
- babinet
- transformer
- case lid
- drop
- 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.)
- Pending
Links
Classifications
-
- 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
- H01F27/33—Arrangements for noise damping
-
- 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
- H01F27/02—Casings
-
- 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
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/12—Oil cooling
- H01F27/14—Expansion chambers; Oil conservators; Gas cushions; Arrangements for purifying, drying, or filling
-
- 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
- H01F27/24—Magnetic cores
- H01F27/26—Fastening parts of the core together; Fastening or mounting the core on casing or support
- H01F27/263—Fastening parts of the core together
-
- 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
-
- 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
- H01F27/341—Preventing or reducing no-load losses or reactive currents
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Housings And Mounting Of Transformers (AREA)
Abstract
The present invention relates to field of electronic devices, for existing transformer, it is unloaded, the problem of load current is big, low-loss transformer can be dropped by specifically disclosing one kind, including pedestal, the pedestal supporting box, it is stamped case lid in the babinet upper end, the case lid is mutually tightly connected by sealing element with babinet, the babinet side connects fuel tank, transformer oil is housed in the fuel tank, the babinet and fuel tank junction are equipped with oil-resistant rubber strip, oil level indicator for showing oil level in fuel tank is installed on case lid, the oil level indicator is equipped with pressure relief valve, the case lid lower end connection, which is hung, mixes, the case lid upper end is equipped with platform sling.Present invention loss is low, no-load current is low, running noises are small；Transformer body is respectively provided with drawing screw rod integral into three-dimensional triangular prism shape, surrounding and center, is integrally formed with upper and lower core insulation and lamination wooden unit, can effectively resist axial direction during sudden short circuit, radial mechanical stress.
Description
Technical field
The present invention relates to field of electronic devices, can drop low-loss transformer more particularly to one kind.
Background technology
Transformer is the device for changing alternating voltage using the principle of electromagnetic induction, and main member is primary coil, secondary
Grade coil and iron core (magnetic core).Major function has：Voltage transformation, current transformation, impedance transformation, isolation, voltage stabilizing (magnetic saturation transformation
Device) etc..It can be divided into, according to use,：Power transformer and special transformer (electric furnace change, rectification change, power frequency testing transformer, pressure regulation
Device, mining change, audio-frequency transformer, intermediate-frequency transformer, high frequency transformer, impact transformer, instrument transformer, electronic transformer,
Reactor, mutual inductor etc.).
Existing no-load transformer, load, no-load current is all very high, has a great impact to grid line loss, operating cost
Height, cost input is high, deficiency in economic performance, and the green clean energy resource proposed to country has very big gap.
Invention content
For the present invention in order to solve the problems, such as that the above-mentioned prior art is worked as, low-loss transformation can be dropped by providing one kind
Device.
To achieve the above object, the present invention uses following technical scheme：
Low-loss transformer can drop in one kind, and including pedestal, case is stamped in the pedestal supporting box, the babinet upper end
Lid, the case lid are mutually tightly connected by sealing element with babinet, and the babinet side connects fuel tank, and transformation is housed in the fuel tank
Device oil, the babinet and fuel tank junction are equipped with oil-resistant rubber strip, and the oil level indicator for showing oil level in fuel tank is installed on case lid
On, the oil level indicator is equipped with pressure relief valve, and the case lid lower end connection, which is hung, mixes, and the case lid upper end is equipped with platform sling, institute
Bushing and low-tension bushing that case lid upper end is installed at least two are stated, the bushing upper end connection high pressure is led
Electric pole, the low-tension bushing upper end connect low voltage conductive bar, are installed between adjacent two bushings there are two low-tension bushing,
The case lid upper end is provided with the mercurial thermometer for measuring spin manifold temperature.
Further, iron core is installed, the iron core is installed on the case by upper clamping piece and lower clamping piece in the babinet
In vivo, the upper clamping piece is equipped with one layer of clamp insulation and is connected by insulated bolt with babinet, logical at left and right sides of the babinet
It crosses bolt and fixes a pair of of screw rod, be cased with insulation tube in the screw rod, upper and lower iron is installed with by the way that a pair of of screw rod is symmetrical above and below
Yoke insulate.The iron core is not less than 30ZH110 cold-reduced silicon sheets using material capability；Three-phase three-column cubic symmetry structure has most flat
The three-phase magnetic circuit of weighing apparatus；Every group of (volume) lamination is by thin steel strip coiling on special iron core up- coiler, the uniform consolidation of pressure；Iron core frame piece
Through vacuum annealing process, stress is eliminated, improves electromagnetic performance；Iron core surface applies epoxy resin coating, moisture-proof, curing.
Further, the lower clamping piece includes lower clamping piece frame, and the lower clamping piece frame forms one with Bolted angle connection, institute
Lower clamping piece frame connection feet is stated, the lower clamping piece frame is equipped with reinforcing plate among it, and bottom end is equipped with fixed plate.
Further, be wound with coil on the bushing and low-tension bushing, the coil be drum type brake, using a left side around
To, the mode of the radial extraction of tap wire is around on bushing, on bushing around the long 100mm of winding protruding head, low-tension bushing
On around the long 150mm of winding protruding head；The coil uses the paper-covered copper flat wire of hypoxemia copper material or QQ-2 acetal enamel insulated round copper wire；
Low-voltage coil is double-deck or four layers of round copper formula or new spiral or foil.High-tension coil is multi-layer cylindrical；Coil oil duct is watt
Stupefied structure, layer insulation are two-sided gummed paper；Low pressure and high pressure surface add around half viscous glass fiber band of epoxy resin, increase
Mechanical strength.
Further, described coil one end is equipped with insulating cylinder, and the insulating cylinder is externally provided with two layers of insulating end ring.
Further, stay curtain is further included, the stay curtain includes stay and insulating paper, and the stay is connected by insulating paper
Splicing plate, the cardboard connect insulating end ring.
Further, the fuel tank includes oil tank body, and the oil tank body is along side extension outlet edge, and the case is along lower end
Plate is installed, oil tank body bottom end is equipped with grounding nut, and the oil tank body lateral wall is periodically provided with corrugated plate, described
Oil tank body top is equipped with the shield frame of at least one, and oil sample valve is offered on the oil tank body.
Further, it is provided with letter card bottom plate by the grounding nut.
Further, nameplate bottom plate is installed on the oil tank body, installation nameplate is corresponded to by nameplate bottom plate.
Further, the bushing is 3, and the low-tension bushing is 4.
Advantageous effect is：Present invention loss is low, no-load current is low, running noises are small；Transformer body is integral into solid
Triangular prism shape, surrounding and center are respectively provided with drawing screw rod, are integrally formed, can effectively resist with upper and lower core insulation and lamination wooden unit
Axial direction during sudden short circuit, radial mechanical stress.
Description of the drawings
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution of the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described.In all the appended drawings, similar element
Or part is generally identified by similar reference numeral.In attached drawing, each element or part might not be drawn according to practical ratio.
Fig. 1 is a kind of front view that can drop low-loss transformer of the present invention；
Fig. 2 is a kind of left view that can drop low-loss transformer of the present invention；
Fig. 3 is a kind of device body installation diagram that can drop low-loss transformer of the present invention；
Fig. 4 is a kind of lower clamping piece structure diagram that can drop low-loss transformer of the present invention；
Fig. 5 is a kind of vertical view for the coil that can drop low-loss transformer of the present invention；
Fig. 6 is a kind of front view for the coil that can drop low-loss transformer of the present invention；
Fig. 7 is a kind of Oiltank structure schematic diagram for the coil that can drop low-loss transformer of the present invention；
Fig. 8 is a kind of fuel tank revolved sectional view for the coil that can drop low-loss transformer of the present invention；
Fig. 9 is a kind of fuel tank partial structural diagram for the coil that can drop low-loss transformer of the present invention；
Reference numeral
Wherein 1 is pedestal, and 2 be babinet, and 3 be case lid, and 4 be sealing element, and 5 be fuel tank, and 5-1 is oil tank body, and 5-2 is case
Edge, 5-3 are plate, and 5-4 is grounding nut, and 5-5 is corrugated plate, and 5-6 is shield frame, and 5-7 is oil sample valve, and 5-8 is letter card bottom plate,
5-9 is nameplate bottom plate, and 6 be oil-resistant rubber strip, and 7 be oil level indicator, and 8 be pressure relief valve, and 9 mix to hang, and 10 be platform sling, and 11 be high pressure
Casing, 12 be low-tension bushing, and 13 be high-voltage conductive rod, and 14 be low voltage conductive bar, and 15 be mercurial thermometer, and 16 be transformer oil,
17 be iron core, and 18 be upper clamping piece, and 19 be lower clamping piece, and 19-1 is lower clamping piece frame, and 19-2 is angle steel, and 19-3 is feet, and 19-4 is
Reinforcing plate, 19-5 are fixed plate, and 20 be clamp insulation, and 21 be screw rod, and 22 insulate for upper yoke, and 23 insulate for lower yoke, and 34 are
Coil, 35 be insulating cylinder, and 36 be insulating end ring, and 37 be stay curtain, and 37-1 is stay, and 37-2 is insulating paper.
Specific embodiment
With reference to embodiment, the present invention is further illustrated.
Low-loss transformer can drop in one kind as depicted in figs. 1 and 2, including pedestal 1,1 supporting box of pedestal
2, case lid 3 is stamped in 2 upper end of babinet, and the case lid 3 is tightly connected by sealing element 4 and 2 phase of babinet, 2 side of babinet
Fuel tank 5 is connected, transformer oil 16 is housed in the fuel tank 5, the babinet 2 and 5 junction of fuel tank are equipped with oil-resistant rubber strip 6, use
It is installed on case lid 3 in the oil level indicator 7 of oil level in display fuel tank, the oil level indicator 7 is equipped with pressure relief valve 8, the case lid 3
Lower end connection, which is hung, mixes 9, and 3 upper end of case lid is equipped with platform sling 10, and 3 upper end of case lid is installed at least two height
Pressing sleeve pipe 11 and low-tension bushing 12,11 upper end of bushing connect high-voltage conductive rod 13, and 12 upper end of low-tension bushing connects
Low voltage conductive bar 14 is connect, is installed between adjacent two bushings 11 there are two low-tension bushing 12,3 upper end of case lid is set
It is useful for measuring the mercurial thermometer 15 of spin manifold temperature.Multiple bushings and low-tension bushing are set, to reduce no-load transformer
Electric current, equipped with the oil level indicator with pressure relief valve convenient for refueling and observation fuel head and dash forward to inside transformer on case lid face
Safeguard protection is released stress when sending out failure overvoltage.As shown in Figure 1, the bushing in the present embodiment is set as 3, described
Low-tension bushing is set as 4.
In the present embodiment, as shown in figure 3, being equipped with iron core 17 in the babinet, the iron core 17 passes through upper clamping piece 18
It is installed in the babinet 2 with lower clamping piece 19, the upper clamping piece 18 is equipped with one layer of clamp insulation 20 and passes through insulated bolt and case
Body 2 is connected, and 2 left and right sides of babinet is bolted a pair of of screw rod 21, is cased with insulation tube 22 in the screw rod 21, leads to
Cross that a pair of of screw rod 21 is symmetrical above and below is installed with upper and lower core insulation 22,23.Iron core in the present embodiment uses material capability
Not less than 30ZH110 cold-reduced silicon sheets；Three-phase three-column cubic symmetry structure has best balanced three-phase magnetic circuit；Every group of (volume) lamination by
Thin steel strip coiling on special iron core up- coiler, the uniform consolidation of pressure；Iron core frame piece is eliminated stress, is carried through vacuum annealing process
High electromagnetic performance；Iron core surface applies epoxy resin coating, moisture-proof, curing.Transformer body is integral into three-dimensional triangular prism shape, surrounding
And center is respectively provided with drawing screw rod, is integrally formed with upper and lower core insulation and lamination wooden unit, can effectively resist axis during sudden short circuit
To radial mechanical stress.
Further, in order to improve the steady effect of the folder of lower clamping piece, the present embodiment has made further the structure of lower clamping piece
Optimization, as shown in figure 4, the lower clamping piece 19 connects including lower clamping piece frame 19-1, the lower clamping piece frame 19-1 and angle steel 19-2
It connects to form one, the lower clamping piece frame 19-1 connection feets 19-3, the lower clamping piece frame 19-1 are equipped with reinforcement among it
Plate 19-4, bottom end are equipped with fixed plate 19-5.
Further, as shown in Figure 1, being wound with coil 34 on the bushing 11 and low-tension bushing 12, the coil 34
For drum type brake, using a left side around to, the mode of the radial extraction of tap wire is around on bushing, on bushing around winding protruding head
Long 100mm, on low-tension bushing around the long 150mm of winding protruding head.The present embodiment coil is flat using the paper bag copper of hypoxemia copper material
Line or QQ-2 acetal enamel insulated round copper wire；Low-voltage coil is double-deck or four layers of round copper formula or new spiral or foil.High-tension coil is
Multi-layer cylindrical；Coil oil duct is corrugated structure, and layer insulation is two-sided gummed paper；Low pressure and high pressure surface add around asphalt mixtures modified by epoxy resin
Half viscous glass fiber band of fat increases mechanical strength.After the coil in the present embodiment, transformer performance parameter such as the following table 1
It is shown.
Table 1
Further, in the present embodiment, described 34 one end of coil as shown in Figure 5 is equipped with insulating cylinder 35, the insulating cylinder 35
It is externally provided with two layers of insulating end ring 36.As shown in fig. 6, further including stay curtain 37, the stay curtain 37 includes stay 37-1 and insulation
Paper 37-2, the stay 37-1 connect insulating end ring 36 by insulating paper 37-2 connections cardboard 38, the cardboard 38.
As shown in Fig. 7, Fig. 8, Fig. 9, the fuel tank 5 extends including oil tank body 5-1, the oil tank body 5-1 along side
Case is equipped with plate 5-3 along 5-2, the case along 5-2 lower ends, and oil tank body 5-1 bottom ends are equipped with grounding nut 5-4, the fuel tank sheet
Body 5-1 lateral walls are periodically provided with corrugated plate 5-5, and the oil tank body 5-1 tops are equipped with the shield frame 5- of at least one
Oil sample valve 5-7 is offered on 6, the oil tank body 5-1.Letter card bottom plate 5-8 is provided with by the grounding nut 5-4.Institute
It states and nameplate bottom plate 5-9 is installed on oil tank body 5-1, installation nameplate is corresponded to by nameplate bottom plate 5-9.Using triangular structure
Full-sealing corrugated oil box, three-phase be respectively provided with corrugated plate with ensure to radiate and compensate with oil temperature change and cause oil volume change swollen contracting
Volume；It dashes forward on case lid face equipped with the oil level indicator with pressure relief valve convenient for oiling and observation fuel head and to inside transformer
Safeguard protection is released stress when sending out failure overvoltage.
Measured performance parameter, experimental data are carried out to this transformer mentioned above using the experimental method of this field routine
As shown in table 2
2 transformer performance parametric measurement experiments experiment data of table
The transformer of transformer in the present embodiment and model S11-1600/10 is compared, the transformation of the model
Device no-load current is between 0.4~0.5A, short-circuit impedance 4.5%, no-load loss 1650W, load loss 14500, this reality
It applies relative to the Transformer Short Circuit Impedance of model height in example, short-circuit risks reduce, while no-load loss is dropped with load loss
It is low, with respect to energy conservation and environmental protection.
Although specific embodiments of the present invention have been described above, it will be appreciated by those of skill in the art that these
It is merely illustrative of, protection scope of the present invention is defined by the appended claims.Those skilled in the art is not carrying on the back
Under the premise of from the principle and substance of the present invention, various changes or modifications can be made to these embodiments, but these are changed
Protection scope of the present invention is each fallen with modification.
Claims (10)
1. low-loss transformer can drop in one kind, including pedestal, case is stamped in the pedestal supporting box, the babinet upper end
Lid, the case lid are mutually tightly connected by sealing element with babinet, it is characterised in that：The babinet side connects fuel tank, the oil
Oil-resistant rubber strip is equipped with equipped with transformer oil, the babinet and fuel tank junction in case, for showing the oil level of oil level in fuel tank
Meter is installed on case lid, and the oil level indicator is equipped with pressure relief valve, and the case lid lower end connection, which is hung, mixes, the case lid upper end peace
Equipped with platform sling, the case lid upper end is installed at least two bushing and low-tension bushing, on the bushing
End connection high-voltage conductive rod, the low-tension bushing upper end connect low voltage conductive bar, are equipped between adjacent two bushings
Two low-tension bushings, the case lid upper end are provided with the mercurial thermometer for measuring spin manifold temperature.
2. low-loss transformer can drop in one kind according to claim 1, it is characterised in that：It is equipped in the babinet
Iron core, the iron core are installed on by upper clamping piece and lower clamping piece in the babinet, the upper clamping piece be equipped with one layer of clamp insulation and
It is connected by insulated bolt with babinet, is bolted a pair of of screw rod at left and right sides of the babinet, is cased in the screw rod
Insulation tube is installed with upper and lower core insulation by the way that a pair of of screw rod is symmetrical above and below.
3. low-loss transformer can drop in one kind according to claim 2, it is characterised in that：Under the lower clamping piece includes
Folder frame, the lower clamping piece frame form one with Bolted angle connection, and the lower clamping piece frame connects feet, the lower clamping piece frame
Frame is equipped with reinforcing plate among it, and bottom end is equipped with fixed plate.
4. low-loss transformer can drop in one kind according to claim 1, it is characterised in that：The bushing and low
Pressing sleeve Guan Shangjun is wound with coil, which is drum type brake, using a left side around to the mode of the radial extraction of tap wire is around in bushing
On, on bushing around the long 100mm of winding protruding head, on low-tension bushing around the long 150mm of winding protruding head.
5. low-loss transformer can drop in one kind according to claim 4, it is characterised in that：Described coil one end is equipped with
Insulating cylinder, the insulating cylinder are externally provided with two layers of insulating end ring.
6. low-loss transformer can drop in one kind according to claim 5, it is characterised in that：Further include stay curtain, institute
It states stay curtain and includes stay and insulating paper, the stay connects cardboard by insulating paper, and the cardboard connects insulating end ring.
7. low-loss transformer can drop in one kind according to claim 1, it is characterised in that：The fuel tank includes fuel tank
Ontology, the oil tank body are equipped with plate along side extension outlet edge, the case along lower end, and oil tank body bottom end is equipped with ground connection spiral shell
Mother, the oil tank body lateral wall are periodically provided with corrugated plate, and the oil tank body top is equipped with the shield of at least one
Frame.
8. low-loss transformer can drop in one kind according to claim 7, it is characterised in that：It is set by the grounding nut
It is equipped with letter card bottom plate.
9. low-loss transformer can drop in one kind according to claim 7, it is characterised in that：Pacify on the oil tank body
Equipped with nameplate bottom plate, installation nameplate is corresponded to by nameplate bottom plate.
10. low-loss transformer can drop in one kind according to claim 1, it is characterised in that：The bushing is 3
A, the low-tension bushing is 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711392704.8A CN108172364A (en) | 2017-12-21 | 2017-12-21 | Low-loss transformer can drop in one kind |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711392704.8A CN108172364A (en) | 2017-12-21 | 2017-12-21 | Low-loss transformer can drop in one kind |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108172364A true CN108172364A (en) | 2018-06-15 |
Family
ID=62522941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711392704.8A Pending CN108172364A (en) | 2017-12-21 | 2017-12-21 | Low-loss transformer can drop in one kind |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108172364A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109712780A (en) * | 2019-01-31 | 2019-05-03 | 江苏伊顿电气科技有限公司 | A kind of oil-immersed type transformer convenient for heat dissipation |
| CN113451006A (en) * | 2021-06-18 | 2021-09-28 | 常州工学院 | Design method of fully-sealed transformer |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006261289A (en) * | 2005-03-16 | 2006-09-28 | Japan Ae Power Systems Corp | Stationary induction apparatus containing silicone liquid |
| CN203812688U (en) * | 2014-04-25 | 2014-09-03 | 江苏天威变压器有限公司 | Oil-immersed transformer |
| CN204558203U (en) * | 2015-03-10 | 2015-08-12 | 海鸿电气有限公司 | A kind of oil immersed type stereo-triangular wound core high overload transformer |
| CN205451989U (en) * | 2016-03-23 | 2016-08-10 | 张亚茹 | Novel transformer |
| CN105989998A (en) * | 2015-03-02 | 2016-10-05 | 江西变电设备有限公司 | High-overload high-temperature-resistant oil-immersed transformer |
| CN205845656U (en) * | 2016-06-07 | 2016-12-28 | 广东瑞智电力科技有限公司 | A kind of oil-filled transformer |
| CN206271511U (en) * | 2016-12-20 | 2017-06-20 | 江西万祥电气有限公司 | A kind of casing of amorphous alloy transformer |
-
2017
- 2017-12-21 CN CN201711392704.8A patent/CN108172364A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006261289A (en) * | 2005-03-16 | 2006-09-28 | Japan Ae Power Systems Corp | Stationary induction apparatus containing silicone liquid |
| CN203812688U (en) * | 2014-04-25 | 2014-09-03 | 江苏天威变压器有限公司 | Oil-immersed transformer |
| CN105989998A (en) * | 2015-03-02 | 2016-10-05 | 江西变电设备有限公司 | High-overload high-temperature-resistant oil-immersed transformer |
| CN204558203U (en) * | 2015-03-10 | 2015-08-12 | 海鸿电气有限公司 | A kind of oil immersed type stereo-triangular wound core high overload transformer |
| CN205451989U (en) * | 2016-03-23 | 2016-08-10 | 张亚茹 | Novel transformer |
| CN205845656U (en) * | 2016-06-07 | 2016-12-28 | 广东瑞智电力科技有限公司 | A kind of oil-filled transformer |
| CN206271511U (en) * | 2016-12-20 | 2017-06-20 | 江西万祥电气有限公司 | A kind of casing of amorphous alloy transformer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109712780A (en) * | 2019-01-31 | 2019-05-03 | 江苏伊顿电气科技有限公司 | A kind of oil-immersed type transformer convenient for heat dissipation |
| CN113451006A (en) * | 2021-06-18 | 2021-09-28 | 常州工学院 | Design method of fully-sealed transformer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201514851U (en) | Outdoor self-excited source three-phase combined electronic transducer metering device | |
| CN106249053B (en) | Capacitance type potential transformer dielectric loss test method based on resonance characteristic | |
| CN204269765U (en) | A kind of transformer for power frequency withstand test and test unit | |
| CN201215755Y (en) | Oil immersion type electricity distribution transformer | |
| CN103336188A (en) | Current boosting apparatus suitable for GIS equipment | |
| CN108172364A (en) | Low-loss transformer can drop in one kind | |
| CN102288880A (en) | Frequency-changing resonant withstand voltage testing device | |
| CN202189105U (en) | System for testing insulation reliability of ultra-high pressure wire outlet device | |
| CN202057764U (en) | Variable frequency resonance voltage withstand test device | |
| CN102226974B (en) | Voltage transformer capable of eliminating ferromagnetic resonance | |
| CN201637767U (en) | Power frequency resonance transformer | |
| CN206864283U (en) | A kind of resistance to shorting structure of amorphous alloy transformer | |
| CN106158334B (en) | A kind of 35kV cast-types combination transformer | |
| CN207663884U (en) | A kind of 20kV ring main units threephase potential transformer | |
| CN109358278A (en) | The scene extra-high voltage SF6 exchanges Insulation Test reactor | |
| CN202939271U (en) | Voltage transformer induction withstand voltage experiment connecting circuit based on third harmonic generator | |
| CN205789480U (en) | A kind of Novel composite mutual inductor | |
| CN201638670U (en) | Low-current ratio current transformer for GIS | |
| CN102945739A (en) | Power-frequency single-phase resonant transformer for calibration and boosting of voltage transformer | |
| CN2620360Y (en) | Oil paper standing upside down type high-voltage current transformer | |
| CN204668129U (en) | A kind of few oil type voltage transformer | |
| KR101192609B1 (en) | Mof for reliability improvement | |
| CN202855519U (en) | Power frequency single-phase resonance transformer used for calibrating and boosting voltage of voltage transformer on site | |
| CN203022715U (en) | Fixed structure used for transformer sub and transformer sub | |
| CN208834849U (en) | A kind of step-up transformer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20180615 |