D10-M Series Single Phase Oil Immersed Distribution Transformer
D10-M Series Single Phase Oil Immersed Distribution Transformer

D10-M Series Single Phase Oil Immersed Distribution Transformer

Effectively upgrade transformer's no-load performance by below methods: 1) The core is made of high-permeable grain-orientated top quality cold-rolled silicon sheet and the material is cut with advanced Germany Geoge GmbH automatic shear line with the cut burs controlled within 0.02mm.

Feature

The Core is Made of High-Permeable Grain-Orientated Top Quality Cold-Rolled Silicon Sheet and The Material is Cut With Advanced Germany Geoge Gmbh Automatic Shear Line with The Cut Burs Controlled Within 0.02mm; High Performance and Reduces Noises

The High-Voltage (Hv) Coil Adopts An Interleaved-Continuous Structure to Improve The Voltage Characteristics Under Impact Voltage,in The Transformer Winding There is A Zigzag Oil Guide Structure 

The Tank Wall Adopts Wide Steel Sheet, Which Will Be Folded Into Corrugated Structure Without Splicing, in This Way Welds are Decreased And Mechanical Strength is Enhanced, Meanwhile, The Corrugated Wall Has Diverging Effect, And Thus Plays A Role in Decrease Of Noise

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Product Introduction

OVERVIEW

 

lron core:

Effectively upgrade transformer's no-load performance by below methods:

1) The core is made of high-permeable grain-orientated top quality cold-rolled silicon sheet and the material is cut with advanced Germany Geoge GmbH automatic shear line with the cut burs controlled within 0.02mm.

2) The silicon sheet fabrication adopts " no-upper yoke lapped' technology and all lapped joints of the silicon sheet are 45 full-miters. The laminated core sheets are integrally pressed and adhered with epoxy resin to make the three leg two-yoke core a strong and flat integral one with good verticality precision, this effectively improves no-load. performance and reduces noises.

 

Winding:

1) The high-voltage (HV) coil adopts an interleaved-continuous structure to improve the voltage characteristics under impact voltage and make voltage evenly distributed. All stays and pads are chamfered to keep highly reliable insulation.

2) In the transformer winding there is a zigzag oil guide structure so as to fully cool all areas inside the winding, lower the temperature rise of the winding and the hot points of the winding and prolong the service life of insulation. The HV and MV regulation system are independently provided with voltage-regulating winding to balance the ampere turn of each winding, effectively lower the axial electrodynamic force generated at short-circuit of transformer and improve abrupt short-circuit withstanding capacity.

 

Oil tank and accessories:

1) The tank wall adopts wide steel sheet, which will be folded into corrugated structure without splicing, in this way welds are decreased and mechanical strength is enhanced, meanwhile, the corrugated wall has diverging effect, and thus plays a role in decrease of noise. The routing troughs and control cabinets of the secondary circuit are all made of stainless steel, so the entire transformer has a simple and good looking.

2) All sealing surface use quality sealing material and are precision-machined.

 

Model

 

 

Technical Parameters

 

Rated Capacity Voltage Ratio (kV) Vector Group Impedance Losses No-load Current Weight Dimension
(kVA) HV LV     No load Load (%) Machine weight Oil Gross (L*W*H)
5 11
10.5
10
6.3
6
0.22
0.24
Lio
li6
3.5 35 145 4 50 40 130 530*450*850
10 55 260 3.5 65 40 150 560*450*870
16 65 365 3.2 80 40 180 600*450*920
20 80 430 3.0 100 50 205 620*450*940
30 100 325 2.5 115 50 225 700*450*980
40 125 775 2.5 150 55 270 700*480*1040
50 150 950 2.3 175 70 310 650*510*1100
63 180 1135 2.1 190 80 340 660*520*1100
80 200 1400 2.0 240 100 420 770*530*1120
100 240 1650 1.9 295 100 490 840*600*1150
125 285 1950 1.8 370 110 560 890*740*1160
160 365 2365 1.7 430 130 650 950*790*1170

Note: Tapping range of high voltage: ±5%, ±2*2.5%; Frequency 50Hz

 

Rated Capacity Voltage Ratio (kV) Tapping Range LV Losses Weight
(kVA) High voltage (%) (KV) No load Full load Loss Oil Gross
15 33/19
30/17.3
13.2/7.62
11/6.35
±2*2.5%;
Or other
0.12
0.24
0.48 or
0.12-
0.24
0.24-
0.48
0.03 0.195 45 294
25 0.05 0.4 68 362
37.5 0.65 0.5 75 476
50 0.8 0.6 93 553
75 0.12 0.88 132 672
100 0.21 1.12 141 742
167 0.35 1.41 207 952
250 0.5 2.0 375 1386

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