CN2679812Y

CN2679812Y - Six-splitting drying phase-shiftnig rectiformer

Info

Publication number: CN2679812Y
Application number: CN 200420030424
Authority: CN
Inventors: 文治俭; 刘春梅; 孙艳芳
Original assignee: Huaye Power Equipment Co ltd A
Current assignee: Huaye Power Equipment Co ltd A
Priority date: 2004-02-19
Filing date: 2004-02-19
Publication date: 2005-02-16
Anticipated expiration: 2014-02-19

Abstract

The utility model belongs to the field of electric machine and equipment manufacture, and relates to a six-splitting dry phase shifting rectifier transformer which directly converts high voltage into high voltage and output perfect waveform without harmonic in an HVF frequency conversion system. The utility model is composed of iron cores, low-voltage lead wires and coils. The utility model is characterized in that the stacking of the iron core adopts the structure of three-stage full oblique joint with 45 DEG, imperforate binding, pull screw rod and pull plate clamp; the low-tension lead wires are arranged linearly, and are split into six sections to shift phrases in an axial direction. After the coils in the axial direction are connected and stacked, the direct conversion of high voltage to high voltage is realized, the high voltage which can be continuously adjusted and changes according to the sine regulation can be obtained by a system, and the capacities of the split coils are uniform. The utility model is the auxiliary mechanical equipment in the HVF frequency conversion system, and can be dry and oil-immersed. Compared with an ordinary frequency conversion and speed adjustment dry transformer in the present market, the utility model has the advantages of low price and cost, reasonable product structure, advanced technical performance and high safety and reliability.

Description

Six division dry type phase-shifting rectifier transformers

Technical field

The utility model belongs to electricapparatus and equipment is made the field, relates to the rectifier transformer of HVF frequency conversion system a kind of " high pressure is to high pressure " Direct Transform, and six division dry type phase-shifting rectifier transformers of output waveform perfect harmony.

Background technology

At present, the rectifier transformer that frequency control is used in the industrial production is common three-phase transformer, and there are repeatedly 24 following odd harmonics in electrical network like this, causes voltage ripple of power network serious, can not provide the voltage of equalization stable to the electric equipment in the electrical network, so that infringements such as the phenomenons that impacts.

Summary of the invention

The utility model six division phase-shifting rectifier transformers have overcome the problem of above-mentioned existence, and purpose is to provide a kind of efficient high power high transformer for industrial frequency conversion system.

The utility model six division phase-shifting rectifier transformers, by: iron core, low-voltage lead, coil are formed, and it is characterized in that: core lamination adopts 45 ° of three grades of full bias seams, and screw rod, arm-tie clamping structure are drawn in the atresia colligation; Low-voltage lead " word " type in the transformer side is vertically arranged; Axial six division phase shifts; Axially realize the Direct Transform of " high pressure---high pressure " after each section coil overlapped in series.

Six division dry type phase-shifting rectifier transformers are the subsidiary engine equipment in the HVF frequency conversion system, and it can be a dry type, also can be oil immersion, can be placed on indoor or outdoor by customer requirements and field condition.Can be widely used in industries such as oil, chemical industry, oil field pipe conveying, building materials, metallurgy, coal, heating power, thermoelectricity, water supply and lifting traction.Its main feature is: band heat-carrying plate modular construction long distance monitoring, output harmonic wave is low, overall efficiency is high, power factor is high.

The utility model six division phase-shifting rectifier transformers are compared with dry-type transformer with the frequency control that existing market is common, and expense and ten annual interest summations have reduced by 9.94%, price and use cost have been reduced, product structure is reasonable, and technical performance advanced person is safe and reliable.

Description of drawings

Fig. 1 is six division dry type phase-shifting rectifier transformer structural representations

Embodiment

The utility model six division dry type phase-shifting rectifier transformers are achieved in that to do below in conjunction with accompanying drawing and specify.See Fig. 1, by: iron core 1, low-voltage lead 2, coil 3 are formed, and low-voltage lead 2 " word " type in the transformer side is vertically arranged; Axial six division phase shifts; Axially realize the Direct Transform of " high pressure---high pressure " after each section coil 3 overlapped in series.

Axial six division phase shifts, the voltage stack can suppress 24 following odd harmonics of electrical network.Axial six division phase shift angles are more accurate, and axially the output of " high pressure---high pressure " is realized in each section voltage stack back.Core lamination adopts 45 ° of three grades of full bias seams, and screw rod, arm-tie clamping structure are drawn in the atresia colligation.By analyzing the magnetic potential relation, determine respectively to organize the capacity allocation of coil, accurately design the number of turn of phase shift coil, realize any adjustment of phase shift angle.In design, secondary side adopts drum type brake and the suitable position relation of adjusting basic coil and phase shift coil to make the temperature rise value of each coil suitable.Its compact conformation, low-voltage lead 2 helps user's wiring.Each secondary coil guarantees its operating secondary voltage value to the impedance relationship of primary winding, and guarantees the reasonable distribution of secondary load, and secondary coil is six divisions.

Axial six division phase shift angles are more accurate, and axially the Direct Transform of " high pressure---high pressure " is realized in each section voltage stack back, and the high pressure output that changes of the sinusoidal rule that makes system obtain regulating continuously and respectively divide the coil capacity equilibrium.Rated capacity 800KVA (continuing); The number of phases: 3 phases; Frequency: 50Hz; The specified input line voltage in former limit: 6000v ± 5%; The specified output line voltage 640v of each winding of secondary ± 2%, overload capacity: 1.8 times 60 seconds; The type of cooling: AN; Impedance voltage: 6-8%; The class of insulation: F level.Secondary coil is six divisions, and the phase shift angle is respectively: 1) phase shift angle :-20.00 ° ,-10.00 °, 0.00 ° ,+10.00 ° ,+20.00 ° ,+30.00 ° 2) the phase shift angle :-26.67 ° ,-16.67 ° ,-6.67 ° ,+3.33 ° ,+13.33 ° ,+23.33 ° 3) the phase shift angle :-23.33 ° ,-13.33 ° ,-3.33 ° ,+6.67 ° ,+16.67 ° ,+26.67 °

Six division dry type phase-shifting rectifier transformers can effectively suppress following odd harmonic 24 times, and electrical network is purified more, guarantee the safer operation of transformer and reduce supplementary load loss, further realize high---high conversion.

Claims

1, a kind of six division phase-shifting rectifier transformers, by: (1), low-voltage lead (2) unshakable in one's determination, coil (3) are formed, and it is characterized in that: (1) stack unshakable in one's determination adopts 45 ° of three grades of full bias seams, and screw rod, arm-tie clamping structure are drawn in the atresia colligation; Low-voltage lead (2) " word " type in the transformer side is vertically arranged; Axial six division phase shifts; Axially realize the Direct Transform of " high pressure---high pressure " after each section coil (3) overlapped in series.