CN105469945B - A kind of single-phase oil immersion type transformer and its special iron core - Google Patents
A kind of single-phase oil immersion type transformer and its special iron core Download PDFInfo
- Publication number
- CN105469945B CN105469945B CN201610039056.7A CN201610039056A CN105469945B CN 105469945 B CN105469945 B CN 105469945B CN 201610039056 A CN201610039056 A CN 201610039056A CN 105469945 B CN105469945 B CN 105469945B
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- Prior art keywords
- babinet
- iron core
- lifting mechanism
- fuel tank
- oil
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Classifications
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- 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
-
- 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
- H01F27/266—Fastening or mounting the core on casing or support
Abstract
The present invention provides a kind of single-phase oil immersion type transformer and its special iron core, including the babinet with case lid, iron core, heat-dissipating pipe and conservator, iron core is the reeded single frame twin-core column of setting, and it is arranged on babinet center, and submerged by oil body, coil is drawn into case lid, high-tension insulating bushing and low-voltage insulation casing are cased with lead respectively, heat-dissipating pipe is provided with wall box, conservator is arranged on the upper end of babinet side, further include lifting mechanism, actuating unit and fuel tank, lifting mechanism is arranged on the underface of iron core, the bottom of lifting mechanism is fixedly connected with babinet, actuating unit is connected with lifting mechanism, fuel tank is connected with actuating unit, fuel tank is arranged on outside babinet.The present invention can regard the oil in babinet as power resources by actuating unit, and driving lifting mechanism takes out iron core, and the oil in babinet is stored into fuel tank, and the operation for being conducive to the maintenance of iron core and changing oil, has not only saved cost, but also improves the efficiency of maintenance.
Description
Technical field
The present invention relates to power Transmission equipment technical field, more particularly to a kind of single-phase oil immersion type transformer and its Special iron
Core.
Background technology
The chief component of transformer is iron core and coil, and iron core plays magnetic conduction and skeleton in transformer,
The quality of its processing quality directly affects the quality of transformer.At present, transformer core generally all uses laminated core structure structure,
It is different from the manufacture of Miniature transformer iron core in the fabrication process, is mainly reflected on the closed assembly and hoisting method of iron core, transformation
As long as device iron core generally after the completion of closed assembly, is directly sling from workbench with suspender on workbench, makes it from horizontal position
Put and be changed into upright position and stand up, be easy to make iron core deform during lifting, cause the seam between silicon steel sheet
Become larger, iron core end face becomes uneven, and the no-load loss and noise of such transformer can all greatly increase；In addition, so very
Security incident easily occurs, causes the damage of equipment and the injures and deaths of personnel.
Such as Publication No.：The Chinese patent of CN 105098632A discloses a kind of maintenance side of bench type transformer suspended core
Method, a kind of door shaped stent suspended core instrument of installation and maintenance suspended core on bench type transformer bottom channel steel；With in first step
A kind of door shaped stent suspended core instrument fixes bench type transformer suspended core；With a kind of door shaped stent suspended core work in first step
Tool slings bench type transformer suspended core；The bench type transformer sling is placed in position；Staff to its into
Row maintenance and inspection；The transformer core that will have been repaired, is lifted into above transformer using a kind of door shaped stent suspended core instrument, peace
Install；Unload door shaped stent suspended core instrument and just complete this maintenance.The shortcomings that this method is：Will using door shaped stent suspended core instrument
Transformer core lifts maintenance, and whole process noise is bigger, it is often more important that can damage transformer core, be unfavorable for transformer core
Recycling.
And for example Publication No.：The Chinese patent of CN 104009403A discloses the inspection being exclusively used in outdoor large transformer
Method is repaiied, bushing is overhauled, diaphragm type conservator is overhauled, unloads dehydrating breather, opens the exhaust on conservator top
Stopple, is sent into leak detection air pressure, and order oil is escaped from exhausting-gas hole, closes exhaust stopple, and installation inhales warm device, opens conservator and device body
Oil duct connecting valve；The oil in conservator is drained using conservator draining valve, the pipeline for passing to and inhaling warm device is removed, insulating oil is passed through into change
Valve injection on depressor, reduces the pressure in diaphragm, secondary lead wires connector is firmly attached；The position of the switch number can be by referring to
Show that disk provides, when making tap position needed for pointer alignment, then the screw that is tightened.The shortcomings that this method is：If desired to transformation
Device maintenance maintenance in device is reduced and will become with regard to needing after first unnecessary component is dismantled, by the pressure in transformer
Oil in depressor is all put it clean, operating time length, time-consuming and laborious, and after repairing well also needs that component is loaded onto original position successively,
If there is damage to be just unfavorable for reusing for transformer in disassembly process, cost is added.
The content of the invention
The problem of time-consuming and laborious is operated to overcome transformer core existing in the prior art to repair and change oil, the present invention carries
A kind of single-phase oil immersion type transformer and its special iron core are supplied.
The technical solution used in the present invention is：
A kind of special iron core of single-phase oil immersion type transformer, it is characterised in that：The iron core includes " returning " shape single frame twin-core column
And coil, the coil are wound on single frame twin-core column, the single frame twin-core column includes the first cylinder and the second cylinder, described first
N number of groove is both provided with the outside of cylinder and the second cylinder, the groove is evenly spaced on.
On this basis, the groove vertical cross-section is rectangle, and the inside grooves are smooth arc-shaped.
On this basis, the width of the groove is more than the height of coil, and the depth of the groove is more than the width of coil.
Present invention also offers a kind of single-phase oil immersion type transformer, including the babinet with case lid, iron core, heat-dissipating pipe and oil
Pillow, the iron core is arranged on babinet center, and is submerged by oil body, and the coil on iron core is drawn case lid, is cased with respectively on lead
High-tension insulating bushing and low-voltage insulation casing, are provided with heat-dissipating pipe on the wall box, the conservator is arranged on babinet side
Upper end, further include lifting mechanism, actuating unit and fuel tank, the lifting mechanism is arranged on the underface of iron core, the lifting
The bottom of mechanism is fixedly connected with babinet, and the actuating unit is connected with lifting mechanism, and the fuel tank is connected with actuating unit, institute
Fuel tank is stated to be arranged on outside babinet.
On this basis, the lifting mechanism includes two supporting racks, support platform and supporting track, described two supports
Frame is arranged side by side, and connecting rod is provided between described two supporting racks, and the support platform is fixed at the top of two supporting racks
End, described two supporting rack lower ends are connected with supporting track.
On this basis, the support platform is provided with concave channels, and the iron core lower end is reverse gibbous shape, under the iron core
End is mutually embedding with support platform concave channels.
On this basis, support frame as described above includes multiple scissor structures, and each scissor structure is by being hinged and connected, institute
The one end for stating the scissor structure of supporting rack bottom is fixedly connected with supporting track, and the other end is with supporting track with being slidably connected.
On this basis, support frame as described above includes 4~8 scissor structures.
On this basis, the actuating unit includes hydraulic pump, check valve, promotes piston and solenoid valve, the hydraulic pump,
Check valve and promote piston to be arranged on box house, the hydraulic pump, check valve and advance the plunger through outside pipeline and babinet
Solenoid valve, fuel tank be sequentially connected, the connecting rod promoted between piston and supporting rack is fixedly connected, the solenoid valve with it is exterior
Controller is connected.
On this basis, a side lower part of the fuel tank is provided with oil outlet, and the oil outlet is provided with flow-stopping sheet with leading
Flow, the flow deflector are fixedly connected with babinet in 30 °~60 °, and the flow-stopping sheet is slidably connected with oil outlet.
Compared with prior art, the beneficial effects of the invention are as follows：
1st, the iron core in the present invention includes the first cylinder and the second cylinder, the first cylinder and the second cylinder for single frame twin-core column
Outside be both provided with N number of groove, groove is evenly spaced on, which can be fully chimeric with coil, solves transformer
Transport, installation or maintenance when, winding may due to collision cause to shift, change coil between gap the problem of, therefore
It can fully ensure that transformer normal operation.
2nd, the present invention is provided with lifting mechanism and actuating unit in transformer tank body, and equipped with fuel tank, in transformation
When needing repairing inside device, by actuating unit lifting mechanism can be driven to take out iron core, at the same the oil in transformer is complete
Portion takes out and deposits to fuel tank, then by conservator to new oil body is added inside transformer-cabinet, to reach the effect changed oil, the design behaviour
It is simple to make principle, maintenance efficiency is high, not only can quickly remove iron core by the use of the oil body in transformer tank body as power source, and
And can change oil at the same time, kill two birds with one stone, reduce cost.
3rd, the lifting mechanism in the present invention includes two supporting racks, support platform and supporting track, which includes more
A scissor structure, each scissor structure is by being hinged and connected, and one end of the scissor structure of supporting rack bottom and supporting track
It is fixedly connected, the other end is with supporting track with being slidably connected.Each scissor hinge joint uniform force of scissor structure, makes stress point peak
Value declines, and reduces the dosage of material, saves cost, and the amplitude of oscillation is obviously reduced, will not fatigue fracture, there is no using hidden
The features such as suffering from, improving maximum lifting height and rated load, thus there is good application value.
4th, the support platform in the present invention is provided with concave channels, while iron core lower end is reverse gibbous shape, iron core lower end and branch
Support platform concave channels it is mutually embedding, using mutually embedding pattern so that iron core is connected compacter with support platform, and iron core and
The contact area of support platform is larger, is conducive to the steady rising in lifting mechanism lifting transformer core, will not damage iron
Core, is conducive to the recycling of iron core.
5th, actuating unit is provided with the present invention, which includes hydraulic pump, check valve, promotes piston and electromagnetism
Valve, mechanism promote piston, check valve ensures by the use of the oil body inside transformer-cabinet as power source by hydraulic pump drive
Oil body not oil return so that promote piston rest, power source need not be obtained again by outside, save the cost of raw material, and liquid
The inlet of press pump is provided with oil filter, can protect oil pump and other Hydraulic Elements, pollutes impurity, Ke Yiyou to avoid suction
The cleannes of the control hydraulic system of effect, help to improve the service life of actuating unit.
6th, lifting mechanism and actuating unit equipped with fuel tank, take out when can be stored in lifting transformer core in the present invention
Transformer-cabinet in oil, which is provided with oil outlet, and oil outlet is provided with flow-stopping sheet and flow deflector, flow deflector and babinet
It is fixedly connected in 30 °~60 °, flow-stopping sheet is slidably connected with oil outlet.The oil outlet is due to there is angle of inclination between babinet, just
Oil body outflow in fuel tank, and flow-stopping sheet can end the flowing of oil body by being inserted into oil outlet, it is easy to operate effectively.
Brief description of the drawings
Fig. 1 is a kind of structure diagram of single-phase oil immersion type transformer；
Fig. 2 is the connection diagram of actuating unit and lifting mechanism in a kind of single-phase oil immersion type transformer；
Fig. 3 is lifting mechanism support platform and the connection diagram of iron core in a kind of single-phase oil immersion type transformer；
Fig. 4 is a kind of structure diagram of single-phase oil immersion type transformer oil outlet；
Fig. 5 is a kind of structure diagram of transformer core in single-phase oil immersion type transformer.
Embodiment
Below in conjunction with drawings and examples, the present invention will be described in further detail.It is it should be appreciated that described herein
Specific embodiment only to explain the present invention, is not intended to limit the present invention.
A kind of special iron core of single-phase oil immersion type transformer, as shown in figure 5, iron core 2 includes " returning " shape single frame twin-core column and line
Circle, coil are wound on single frame twin-core column, and single frame twin-core column includes the first cylinder 21 and the second cylinder 22, the first cylinder 21 and second
The outside of cylinder 22 is both provided with N number of groove 23, and groove 23 is evenly spaced on.23 vertical cross-section of groove is rectangle, groove
23 inside are smooth arc-shaped.The width of groove 23 is more than the height of coil, and the depth of groove 23 is more than the width of coil, this is recessed
Groove can be fully chimeric with coil, solves transformer in transport, installation or maintenance, winding may cause to move due to collision
Position, the problem of changing the gap between coil, therefore can fully ensure that transformer normal operation.
Present invention also offers a kind of single-phase oil immersion type transformer, as shown in Figure 1, including babinet 1, iron core with case lid
2nd, heat-dissipating pipe and conservator, and be arranged on the center of babinet 1, and submerged by oil body, rotating around there is a coil on single frame twin-core column, and by line
Circle draws case lid, is cased with high-tension insulating bushing and low-voltage insulation casing respectively on lead, is provided with 1 side wall of transformer-cabinet scattered
Heat pipe, conservator are arranged on the upper end of 1 side of babinet, this single-phase oil immersion type transformer further includes lifting mechanism 3,4 and of actuating unit
Fuel tank 5, wherein lifting mechanism 3 are arranged on the underface of transformer core 2, and the bottom of lifting mechanism 3 is fixedly connected with babinet 1,
Actuating unit 4 is connected with lifting mechanism 3, and fuel tank 5 is connected with actuating unit 4, and fuel tank 5 is arranged on outside babinet 1.The present invention is becoming
Lifting mechanism and actuating unit are provided with depressor babinet, and equipped with fuel tank, when inside transformer needs repairing, is not required to
Separately to add loop wheel machine that transformer core is lifted maintenance, by actuating unit lifting mechanism can be driven to take out iron core, at the same time
Oil in transformer is all taken out and is deposited to fuel tank, then is changed by conservator to new oil body is added inside transformer-cabinet with reaching
The effect of oil, the design operating principle is simple, and maintenance efficiency is high, low noise, and will not destroy iron core, can not only utilize transformation
Oil body in device babinet quickly removes iron core as power source, and can change oil at the same time, kills two birds with one stone, reduces cost.
As shown in Figure 1, 2, lifting mechanism 3 includes two supporting racks 31, support platform 32 and supporting track 33, two supports
Frame 31 is arranged side by side, and is provided with connecting rod 312 between two supporting racks 31, and support platform 32 is fixed at two supporting racks 31
Top, two 31 lower ends of supporting rack are connected with supporting track 33.Wherein supporting rack 31 includes multiple scissor structures 311, each to cut
Structure 311 is pitched by being hinged and connected, one end of the scissor structure 311 of 31 bottom of supporting rack is fixedly connected with supporting track 33, separately
One end is with supporting track 33 with being slidably connected.Preferably, supporting rack 31 includes 4~8 scissor structures 311.Further preferably, prop up
Support 31 includes 6 scissor structures 311.The primary structure of lifting mechanism in the present invention is scissor structure, the scissor structure
Each scissor hinge joint uniform force, stress point peak-fall, reduces the dosage of material, saves cost, and the amplitude of oscillation is obvious
Reduce, will not fatigue fracture, the features such as there is no using hidden danger, maximum lifting height and rated load is improved, thus have
Good application value.
As shown in figure 3, support platform 32 is provided with concave channels 322,2 lower end of iron core is reverse gibbous shape, the iron core 2
Lower end and 32 concave channels 322 of support platform are mutually embedding.Support platform in the present invention is provided with concave channels, while iron core lower end
For reverse gibbous shape, iron core lower end and support platform concave channels are mutually embedding, using mutually embedding pattern so that iron core is connected with support platform
It is compacter, and the contact area of iron core and support platform is larger, is conducive in lifting mechanism lifting transformer core
Steady rising, iron core will not be damaged, be conducive to the recycling of iron core.
As shown in Figure 1, actuating unit 4 includes hydraulic pump 41, check valve 42, promotes piston 43 and solenoid valve 44, the liquid
Press pump 41, check valve 42 and promotion piston 43 are arranged on inside babinet 1, the hydraulic pump 41, check valve 42 and promotion piston 43
It is sequentially connected by pipeline and the solenoid valve 44 outside babinet 1, fuel tank 5, the company promoted between piston 43 and supporting rack 31
Bar 312 is fixedly connected, and the solenoid valve 44 is connected with peripheral control unit.Actuating unit is provided with the present invention, the actuating unit
Including hydraulic pump, check valve, promote piston and solenoid valve, mechanism by the use of the oil body inside transformer-cabinet as power source,
Piston is promoted by hydraulic pump drive, check valve ensures oil body not oil return so that promote piston rest, power source need not be by outer
Portion obtains again, has saved the cost of raw material, it is preferable that 41 inlet of hydraulic pump is provided with oil filter, can protect oil pump and
Other Hydraulic Elements, pollute impurity to avoid suction, can effectively control the cleannes of hydraulic system, help to improve power
The service life of mechanism.Wherein oil filter can be screen filter, edge type oil filter etc., it is preferable that oil strain in the present invention
Device is screen filter, and not only installs oil filter in the inlet of hydraulic pump, is also installed at the entrance and exit of fuel tank
There is oil filter.Wherein solenoid valve can be direct-acting electromagnetic valve, step direct-acting type electromagnetic valve and guide electromagnetic valve, it is preferable that
Solenoid valve 44 in the present invention is direct-acting electromagnetic valve 44.
As shown in Fig. 1,4, a side lower part of fuel tank 5 is provided with oil outlet 51, and oil outlet 51 is provided with flow-stopping sheet 511 with leading
Flow 512, the flow deflector 512 are fixedly connected with babinet 1 in 30 °~60 °, and flow-stopping sheet 511 is slidably connected with oil outlet 51.This
Lifting mechanism and actuating unit can be stored in the transformer-cabinet taken out during lifting transformer core equipped with fuel tank in invention
In oil, which is provided with oil outlet, and oil outlet is provided with flow-stopping sheet and flow deflector, and flow deflector is solid in 30 °~60 ° with babinet
Fixed connection, flow-stopping sheet are slidably connected with oil outlet.The oil outlet is due to there is angle of inclination between babinet, easy to the oil in fuel tank
Body flows out, and flow-stopping sheet can end the flowing of oil body by being inserted into oil outlet, it is easy to operate effectively.Wherein flow deflector can be with
It is flexible, the length of flow deflector can be lengthened according to demand so that Oil Guide is more convenient and will not overflow or spill.
During work, hydraulic pump powers on, and starts hydraulic pump and is constantly pressurized the oil body in transformer-cabinet along pipeline, pushes away
Piston promotes supporting rack, and uniform speed slow lifts, and stops pump liquid after certain position is raised to, and check valve prevents oil return at this time,
Promoting piston rest, supporting rack remains stationary state, operating personnel can be overhauled in rising way；During decline, it need to only connect
Three-way electromagnetic valve opens back fluid path, and fluid returns to fuel tank, and hydraulic cylinder decompression, promotes piston to decline, supporting rack gently declines.If need more
Change oil liquid, you can new fluid is inputted from conservator；The fluid in fuel tank is back to transformer-cabinet if it need not replace fluid
In, maintenance is completed.
The preferred embodiment of the present invention has shown and described in described above, as previously described, it should be understood that the present invention is not office
Be limited to form disclosed herein, be not to be taken as the exclusion to other embodiment, and available for various other combinations, modification and
Environment, and can be changed in the scope of the invention is set forth herein by the technology or knowledge of above-mentioned teaching or association area
It is dynamic., then all should be appended by the present invention and changes and modifications made by those skilled in the art do not depart from the spirit and scope of the present invention
In scope of the claims.
Claims (6)
- A kind of 1. single-phase oil immersion type transformer, it is characterised in that：Including the babinet (1) with case lid, iron core (2), heat-dissipating pipe and Conservator, the iron core (2) include " returning " shape single frame twin-core column and coil, and the coil is wound on single frame twin-core column, the single frame Twin-core column includes the first cylinder (21) and the second cylinder (22), is all provided with the outside of first cylinder (21) and the second cylinder (22) N number of groove (23) is equipped with, the groove (23) is evenly spaced on；The width of the groove (23) is more than the height of coil, institute The depth for stating groove (23) is more than the width of coil；The iron core (2) is arranged on babinet (1) center, and is submerged by oil body, by iron Coil on core (2) draws case lid, and high-tension insulating bushing and low-voltage insulation casing, babinet (1) side are cased with respectively on lead Heat-dissipating pipe is provided with wall, the conservator is arranged on the upper end of babinet (1) side, further includes lifting mechanism (3), actuating unit (4) and fuel tank (5), the lifting mechanism (3) are arranged on the underface of iron core (2), the bottom of the lifting mechanism (3) and babinet (1) it is fixedly connected, the actuating unit (4) is connected with lifting mechanism (3), and the fuel tank (5) is connected with actuating unit (4), institute State fuel tank (5) and be arranged on babinet (1) outside；The actuating unit (4) includes hydraulic pump (41), check valve (42), promotes piston (43) and solenoid valve (44), the hydraulic pump (41), check valve (42) and promotion piston (43) are arranged on babinet (1) inside, institute State hydraulic pump (41), check valve (42) and promote piston (43) to pass through the exterior solenoid valve (44) of pipeline and babinet (1), fuel tank (5) it is sequentially connected, the connecting rod (312) promoted between piston (43) and supporting rack (31) is fixedly connected, the solenoid valve (44) it is connected with peripheral control unit.
- A kind of 2. single-phase oil immersion type transformer according to claim 1, it is characterised in that：The lifting mechanism (3) includes Two supporting racks (31), support platform (32) and supporting track (33), described two supporting racks (31) are arranged side by side, described two Connecting rod (312) is provided between supporting rack (31), the support platform (32) is fixed at the top of two supporting racks (31), Described two supporting rack (31) lower ends are connected with supporting track (33).
- A kind of 3. single-phase oil immersion type transformer according to claim 2, it is characterised in that：The support platform (32) is set There are concave channels (322), iron core (2) lower end is reverse gibbous shape, iron core (2) lower end and support platform (32) concave channels (322) it is mutually embedding.
- A kind of 4. single-phase oil immersion type transformer according to claim 2, it is characterised in that：Support frame as described above (31) includes more A scissor structure (311), each scissor structure (311) is by being hinged and connected, the scissor knot of support frame as described above (31) bottom One end of structure (311) is fixedly connected with supporting track (33), and the other end is with supporting track (33) with being slidably connected.
- A kind of 5. single-phase oil immersion type transformer according to claim 4, it is characterised in that：Support frame as described above (31) includes 4 ~8 scissor structures (311).
- A kind of 6. single-phase oil immersion type transformer according to claim 1, it is characterised in that：Under the side of the fuel tank (5) Portion is provided with oil outlet (51), and the oil outlet (51) is provided with flow-stopping sheet (511) and flow deflector (512), the flow deflector (512) it is fixedly connected with babinet (1) in 30 °~60 °, the flow-stopping sheet (511) is slidably connected with oil outlet (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610039056.7A CN105469945B (en) | 2016-01-20 | 2016-01-20 | A kind of single-phase oil immersion type transformer and its special iron core |
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| CN201610039056.7A CN105469945B (en) | 2016-01-20 | 2016-01-20 | A kind of single-phase oil immersion type transformer and its special iron core |
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| CN105469945B true CN105469945B (en) | 2018-05-01 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106158283B (en) * | 2016-08-24 | 2017-10-20 | 江苏铭安电气有限公司 | A kind of single-phase oil immersion type transformer |
| CN107123507B (en) * | 2017-03-24 | 2018-11-16 | 江苏源通电气有限公司 | A kind of oil-immersed transformer with oil product detection device |
| CN106935373B (en) * | 2017-03-24 | 2018-09-11 | 江苏源通电气有限公司 | A kind of single-phase oil immersion type transformer |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN203982943U (en) * | 2014-06-23 | 2014-12-03 | 明珠电气有限公司 | A kind of liquid immersion type reactor of environmental-protection fireproof |
| CN204270782U (en) * | 2014-12-08 | 2015-04-15 | 国家电网公司 | With two five posts magnet controlled reactor unshakable in one's determination of horizontal yoke |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2121741U (en) * | 1992-03-16 | 1992-11-11 | 苏州变压器厂 | Adjustable reactor |
| CN2594948Y (en) * | 2002-09-11 | 2003-12-24 | 张振华 | Electric reactor with three-phase parallel cores |
| EP2320439A4 (en) * | 2008-09-03 | 2018-05-02 | Hitachi Industrial Equipment Systems Co., Ltd. | Wound iron core for static apparatus, amorphous transformer and coil winding frame for transformer |
| CN104101489B (en) * | 2014-05-29 | 2017-04-05 | 国家电网公司 | A kind of portable primary cut-out detecting tool |
| CN204045359U (en) * | 2014-09-04 | 2014-12-24 | 浙江金盘变压器有限公司 | Two high voltage dry type distribution transformer |
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- 2016-01-20 CN CN201610039056.7A patent/CN105469945B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203982943U (en) * | 2014-06-23 | 2014-12-03 | 明珠电气有限公司 | A kind of liquid immersion type reactor of environmental-protection fireproof |
| CN204270782U (en) * | 2014-12-08 | 2015-04-15 | 国家电网公司 | With two five posts magnet controlled reactor unshakable in one's determination of horizontal yoke |
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| CN105469945A (en) | 2016-04-06 |
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