CN201425877Y

CN201425877Y - Medium-high frequency electrostatic dust removal dry-type transformer high-voltage coil

Info

Publication number: CN201425877Y
Application number: CN200920117384XU
Authority: CN
Inventors: 赵西平
Original assignee: Zhejiang Guangtian Transformer Co Ltd
Current assignee: Zhejiang Guangtian Transformer Co Ltd
Priority date: 2009-04-09
Filing date: 2009-04-09
Publication date: 2010-03-17
Anticipated expiration: 2019-04-09

Abstract

A medium-high frequency electrostatic dust removal dry-type transformer high-voltage coil comprises a wire inlet pillar, a wire outlet pillar, an upper clamping piece, and a lower clamping piece; thewire inlet pillar as well as the wire outlet pillar comprises a high-voltage coil and a low-voltage coil mounted in the high-voltage coil; an epoxy resin concreting layer is arranged on the outer wallof the high-voltage coil; an iron core is mounted on the inner side of the low-voltage coil; the upper clamping piece and the lower clamping piece are used for fixing the high-voltage coils and low-voltage coils respectively; upper cushion blocks are mounted between the wire inlet pillar and the upper clamping piece as well as between the wire outlet pillar and the upper clamping piece; and lowercushion blocks are mounted between the wire inlet pillar and the lower clamping piece as well as between the wire outlet pillar and the lower clamping piece; and a base and a supporting plate are connected to the bottom of the lower clamping pieces. The utility model is characterized in that the high-voltage coil of the wire inlet pillar is divided into two segments, namely, an upper wire inlet high-voltage coil and a lower wire inlet high-voltage coil; the high-voltage coil of the wire outlet pillar is divided into two segments, namely, an upper wire outlet high-voltage coil and a lower wireoutlet high-voltage coil; and the upper wire inlet high-voltage coil is connected in series with the upper wire outlet high-voltage coil through an upper connecting rod, and the lower wire inlet high-voltage coil is connected in series with the lower wire outlet high-voltage coil through a lower connecting rod, so that an outlet wire with a parallel circuit is formed.

Description

Medium-high frequency static dust-removing dry type transformer high-tension coil

Technical field

The utility model relates to a kind of medium-high frequency static dust-removing dry type transformer high-tension coil, belongs to field of electrical equipment.

Background technology

Be applied to the medium-high frequency static dust-removing dry type resin insulating transformer of the large-scale electric dust-removing equipment of large power plant, building material industry, chemical industry, in the assembling process of transformer high-voltage coil, in order to control voltage between layers and field intensity and leakage inductance, high-tension coil need be carried out segmentation, existing high-tension coil generally is divided into 4 sections or 6 sections, the shortcoming of its existence has: one, segmentation is many more, and leakage reactance is big more, and impedance is more little; Two, the supplementary load loss of high-tension coil do not have to reduce specially the measure of its skin effect and proximity effect, cause its supplementary load loss to increase; Three, the delivery efficiency that makes the high and low pressure coil overlap arrange to cause the output impedance height to cause is very low.

Summary of the invention

The purpose of this utility model is in order to overcome the shortcoming of prior art, provide a kind of high-tension coil is divided into upper and lower two sections, voltage between layers and field intensity and leakage inductance had both been controlled, make leakage reactance little again, impedance is little, and reduce medium-high frequency magnetic field eddy current loss, reduce the thermal losses that skin effect produces, reduce the medium-high frequency static dust-removing dry type transformer high-tension coil of transformer supplementary load loss.

The technical scheme of the utility model medium-high frequency static dust-removing dry type transformer high-tension coil is: comprise inlet wire post and outlet column, described inlet wire post and outlet column comprise high-tension coil separately and are installed in the interior low-voltage coil of high-tension coil, the outer wall of high-tension coil has the poured with epoxy resin layer, installed inside iron core at low-voltage coil, and it is fixing high, on the low-voltage coil, lower clamping piece is formed, advancing, outlet column and last, be equipped with cushion block and lower cushion block between the lower clamping piece respectively, the lower clamping piece bottom connects base and supporting plate, the high-tension coil that it is characterized in that described inlet wire post is divided into inlet wire high-tension coil and two sections of following inlet wire high-tension coils, the high-tension coil of described outlet column is divided into outlet high-tension coil and two sections of following outlet high-tension coils, last inlet wire high-tension coil and last outlet high-tension coil are in series through upper connecting rod, and following inlet wire high-tension coil is in series through lower connecting rod with following outlet high-tension coil and forms the shunt circuit outlet.

Medium-high frequency static dust-removing dry type transformer high-tension coil of the present utility model, the high-tension coil of inlet wire post and outlet column only is divided into inlet wire high-tension coil, two sections of inlet wire high-tension coil and last outlet high-tension coil and following outlet high-tension coils down, even the voltage between layers of transformer and field intensity and leakage inductance are effectively controlled, reduce leakage reactance and impedance again; Simultaneously, last inlet wire high-tension coil and last outlet high-tension coil are in series through upper connecting rod, following inlet wire high-tension coil is in series through lower connecting rod with following outlet high-tension coil and forms the shunt circuit outlet, reduce magnetic field eddy current loss, realize that simultaneously main insulation is 1/4 of conventional main insulation, longitudinal insulation is 1/2 of a conventional longitudinal insulation; It replaces thermal losses that high-voltage line can produce its skin effect to be reduced to about 8% from original 200%, obtains and expects the not efficient in road.

Description of drawings

Fig. 1 is the utility model medium-high frequency static dust-removing dry type transformer high-tension coil structural representation;

Fig. 2 is a medium-high frequency static dust-removing dry type transformer front view of the present utility model;

Fig. 3 is a medium-high frequency static dust-removing dry type transformer vertical view of the present utility model.

Embodiment

The utility model relates to medium-high frequency static dust-removing dry type transformer high-tension coil, as shown in Figure 1-Figure 3, comprise inlet wire post 1 and outlet column 2, described inlet wire post 1 comprises high-tension coil 3 and the low-voltage coil 4 that is installed in the high-tension coil 3 separately with outlet column 2, the outer wall of high-tension coil 3 has poured with epoxy resin layer 5, installed inside iron core 3 at low-voltage coil 4, and it is fixing high, on the low-voltage coil,

lower clamping piece

6,7 form, advancing, outlet column 1,2 with last, lower clamping piece 6, be equipped with cushion block 8 and lower cushion block 9 between 7 respectively, lower clamping piece 7 bottoms connect base 10 and supporting plate 11, the high-tension coil that it is characterized in that described inlet wire post 1 is divided into inlet wire high-tension coil 31 and 32 two sections of following inlet wire high-tension coils, the high-tension coil of described outlet column 2 is divided into outlet high-tension coil 33 and 34 two sections of following outlet high-tension coils, last inlet wire high-tension coil 31 is in series through upper connecting rod 12 with last outlet high-tension coil 33, and following inlet wire high-tension coil 32 is in series through lower connecting rod 13 with following outlet high-tension coil 34 and forms the shunt circuit outlet.The high-tension coil of inlet wire post and outlet column only is divided into inlet wire high-tension coil, two sections of inlet wire high-tension coil and last outlet high-tension coil and following outlet high-tension coils down, even the voltage between layers of transformer and field intensity and leakage inductance are effectively controlled, reduce leakage reactance and impedance again; Simultaneously, last inlet wire high-tension coil and last outlet high-tension coil are in series through connecting rod, and following inlet wire high-tension coil is in series with following outlet high-tension coil and forms the shunt circuit outlet, reduces magnetic field eddy current loss, realize that simultaneously main insulation is 1/4 of conventional main insulation, longitudinal insulation is 1/2 of a conventional longitudinal insulation; It replaces thermal losses that high-voltage line can produce its skin effect to be reduced to about 8% from original 200%, obtains and expects the not efficient in road.

Claims

1, medium-high frequency static dust-removing dry type transformer high-tension coil, comprise inlet wire post (1) and outlet column (2), described inlet wire post (1) comprises high-tension coil (3) separately with outlet column (2) and is installed in the interior low-voltage coil (4) of high-tension coil (3), the outer wall of high-tension coil (3) has poured with epoxy resin layer (5), installed inside iron core (30) at low-voltage coil (4), and it is fixing high, on the low-voltage coil, lower clamping piece (6,7) form, advancing, outlet column (1,2) with last, lower clamping piece (6,7) be equipped with cushion block (8) and lower cushion block (9) between respectively, lower clamping piece (7) bottom connects base (10) and supporting plate (11), the high-tension coil that it is characterized in that described inlet wire post (1) is divided into (32) two sections of inlet wire high-tension coil (31) and following inlet wire high-tension coils, the high-tension coil of described outlet column (2) is divided into (34) two sections of outlet high-tension coil (33) and following outlet high-tension coils, last inlet wire high-tension coil (31) is in series through upper connecting rod (12) with last outlet high-tension coil (33), and following inlet wire high-tension coil (32) is in series through lower connecting rod (13) with following outlet high-tension coil (34) and forms the shunt circuit outlet.