CN206877817U - A kind of oil-filled transformer - Google Patents

Abstract

The utility model discloses a kind of oil-filled transformer, including transformer body, the transformer body includes fuel tank, bushing, low-tension bushing, binding post, pressure relieving valve, oil level indicator, mercurial thermometer, case lid and iron core assembly case, the oil level indicator is provided with pressure relieving valve, binding post is located at the top of bushing, transformer body also includes transformer shell, case lid is installed at the top of transformer shell, positive stop strip is fixed between transformer shell and case lid, mercurial thermometer, oil level indicator, bushing, low-tension bushing is respectively positioned on the top of case lid, fuel tank and the iron core assembly case is respectively positioned on inside transformer shell.The utility model structure arrangement is reasonable, excellent in heat dissipation effect, is worthy to be popularized.

Description

A kind of oil-filled transformer

Technical field

Transformer technology field is the utility model is related to, specially a kind of oil-filled transformer.

Background technology

Transformer is the device for changing alternating voltage using the principle of electromagnetic induction, and main member is primary coil, secondary Level coil and iron core (magnetic core).Major function has：Voltage transformation, current transformation, impedance conversion, 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, transformer etc.).

Inside transformer structure distribution of the prior art is unreasonable, and radiating effect is bad, causes it actually to make Potential safety hazard during be present.

Utility model content

The purpose of this utility model is to provide a kind of oil-filled transformer, asked with solve to propose in above-mentioned background technology Topic.

To achieve the above object, the utility model provides following technical scheme：A kind of oil-filled transformer, including transformer Body, the transformer body include fuel tank, bushing, low-tension bushing, binding post, pressure relieving valve, oil level indicator, mercury temperature Meter, case lid and iron core assembly case, the oil level indicator are provided with pressure relieving valve, and binding post is located at the top of bushing, transformer Body also includes transformer shell, is provided with case lid at the top of transformer shell, is fixed between transformer shell and case lid limited Position bar, mercurial thermometer, oil level indicator, bushing, low-tension bushing are respectively positioned on the top of case lid, fuel tank and the iron core assembly case It is respectively positioned on inside transformer shell, the inside installation of iron core assembly case is cored, and coil is arranged with iron core, iron core assembly case Top is provided with the shunting switch being electrically connected with coil, and the surrounding of transformer shell is mounted on corrugated plate, transformer shell Rear and front end be symmetrically welded with suspension ring, be laterally interspersed with Dual-purpose valve in transformer shell body.

Preferably, high pressure upper clamping piece is included in the iron core assembly case, screw rod, phenolic aldehyde paper tube is drawn, high-low pressure lower clamping piece, connects Ground piece and other screw rod, high pressure upper clamping piece are located on iron core, by drawing screw rod between the high pressure upper clamping piece and high-low pressure lower clamping piece Connection, draw and be provided with phenolic aldehyde paper tube on screw rod.

Compared with prior art, the beneficial effects of the utility model are：

1st, pass through the design of rational fuel tank, iron core and coil so that the structure distribution of inside transformer more rationally, So that transformer among the process used, reduces potential safety hazard, security is improved；

2nd, the setting of corrugated plate is passed through so that during transformer works, the effect that it radiates is more preferable, reduces because becoming Depressor heating injury to caused by itself.

Brief description of the drawings

Fig. 1 is the utility model front view；

Fig. 2 is the utility model top view；

Fig. 3 is iron core assembly box structure schematic diagram；

Fig. 4 is iron core front view；

Fig. 5 is iron core side view.

In figure：Pressure relieving valve 1, oil level indicator 2, bushing 3, binding post 4, low-tension bushing 5, positive stop strip 6, case lid 7 are dual-purpose Valve 8, fuel tank 9, corrugated plate 10, suspension ring 11, iron core assembly case 12, shunting switch 13, mercurial thermometer 14, iron core 15, coil 16, high pressure upper clamping piece 17, draw screw rod 18, phenolic aldehyde paper tube 19, high-low pressure lower clamping piece 20, ground strip 21, other screw rod 22.

Embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out Clearly and completely retouch, it is clear that the embodiment retouched is only the utility model part of the embodiment, rather than whole embodiments. Based on the embodiment in the utility model, what those of ordinary skill in the art obtained under the premise of creative work is not made has Other embodiment, belong to the scope of the utility model protection.

Referring to Fig. 1, the utility model provides a kind of technical scheme：A kind of oil-filled transformer, including transformer body, Transformer body includes fuel tank 9, bushing 3, low-tension bushing 5, binding post 4, pressure relieving valve 1, oil level indicator 2, mercurial thermometer 14th, case lid 7 and iron core assembly case 12, oil level indicator 2 are provided with pressure relieving valve 1, and binding post 4 is located at the top of bushing 3, transformation Device body also includes transformer shell, and case lid 7 is provided with the top of transformer shell, fixed between transformer shell and case lid 7 Limited location bar 6, mercurial thermometer 14, oil level indicator 2, bushing 3, low-tension bushing 5 are respectively positioned on the top of case lid 7, fuel tank 9 and iron Core assembling case 12 is respectively positioned on inside transformer shell, and tank surface uses the handling process of powder spray, whole coating uniform, complete It is whole, arrangement is tight, adhesive force is good, acid washing phosphorization causes metal surface to form phosphating coat, it is ensured that does not produce rusty stain before spray, is surface Quality lays the first stone, and whole fuel tank uses electrostatic spraying, and thickness is less than 60um.The inside installation of iron core assembly case 12 is cored 15, coil 16 is arranged with iron core 15, winding selects the enamel-covered wire or paper bag flat type copper wire of high-quality oxygen-free copper manufacture, and winding is using circle Cartridge type, it is spiral, improve spiral, continous way, be entangled with the patterns such as formula.Transformer bears short-circuit capacity.Transformer coil is layer Formula structure coil (more than 500kVA low pressure uses foil winding), low pressure are paper covered wire, high pressure be enamel-covered wire (or paper covered wire) around System, ampere-turn is evenly distributed during coiling, and insulation system is reasonable.Coil winding technique is advanced, is shunk in coil power inside work without latitude Band and wound without latitude glass fiber, increase the mechanical strength of coil, improve because external short circuit and caused by the impact energy of transformer Power, transformer station high-voltage side bus can persistently bear the external short circuit temperature capacity electric current of 5S times on any tap position, and its around Group temperature is no more than 250 DEG C (copper).Reach the features such as safe and reliable, anti-short circuit capability is strong.The top installation of iron core assembly case 12 There is the shunting switch 13 being electrically connected with coil 16, the surrounding of transformer shell is mounted on corrugated plate 10, passes through corrugated plate 10 Setting so that transformer work during, its radiate effect it is more preferable, reduce because transformer generate heat to itself caused by Injury, draw domestic and international advanced technology, using new material, optimization design, make the structure of product more reasonable, product it is electric Intensity, mechanical strength, heat-sinking capability etc. significantly improve.The rear and front end of transformer shell is symmetrically welded with suspension ring 11, transformer Dual-purpose valve 8 is laterally interspersed with housing.Pass through the design of rational fuel tank 9, iron core 15 and coil 16 so that inside transformer Structure distribution it is more reasonable so that transformer among the process used, reduce potential safety hazard, improve security；

Include high pressure upper clamping piece 17 in iron core assembly case 12, draw screw rod 18, phenolic aldehyde paper tube 19, high-low pressure lower clamping piece 20, connect Ground piece 21 and other screw rod 22, high pressure upper clamping piece 17 are located on iron core 15, lead between high pressure upper clamping piece 17 and high-low pressure lower clamping piece 20 Cross drawing screw rod 18 to connect, draw and be provided with phenolic aldehyde paper tube 19 on screw rod 18.

The utility model has small volume, external form U.S. suitable for three-phase, 50Hz, 10kV level and following power system The characteristics of sight, for work, agriculture distribution, power and illumination.

Although having been shown and having retouched embodiment of the present utility model, for the ordinary skill in the art, can A variety of changes can be carried out to these embodiments in the case where not departing from principle of the present utility model and spirit with understanding, repaiied Change, replace and modification, the scope of the utility model are limited by attached claim and its equivalent.

Claims (2)

1. a kind of oil-filled transformer, including transformer body, it is characterised in that：The transformer body includes fuel tank (9), height Gland pipe (3), low-tension bushing (5), binding post (4), pressure relieving valve (1), oil level indicator (2), mercurial thermometer (14), case lid (7) With iron core assembly case (12), the oil level indicator (2) is provided with pressure relieving valve (1), and binding post (4) is located at the top of bushing (3) Portion, transformer body also include transformer shell, case lid (7), transformer shell and case lid are provided with the top of transformer shell (7) positive stop strip (6) is fixed between, mercurial thermometer (14), oil level indicator (2), bushing (3), low-tension bushing (5) are respectively positioned on The top of case lid (7), the fuel tank (9) and iron core assembly case (12) are respectively positioned on inside transformer shell, iron core assembly case (12) Inside cored (15) are installed, be arranged with coil (16) on iron core (15), be provided with the top of iron core assembly case (12) and line The shunting switch (13) that (16) are electrically connected with is enclosed, the surrounding of transformer shell is mounted on corrugated plate (10), transformer shell Rear and front end is symmetrically welded with suspension ring (11), and Dual-purpose valve (8) is laterally interspersed with transformer shell body.

A kind of 2. oil-filled transformer according to claim 1, it is characterised in that：Include in the iron core assembly case (12) High pressure upper clamping piece (17), draw screw rod (18), phenolic aldehyde paper tube (19), high-low pressure lower clamping piece (20), ground strip (21) and other screw rod (22), high pressure upper clamping piece (17) is located on iron core (15), leads between the high pressure upper clamping piece (17) and high-low pressure lower clamping piece (20) Drawing screw rod (18) connection is crossed, draws and is provided with phenolic aldehyde paper tube (19) on screw rod (18).