DTU – THREE-PHASE MATCHING TRANSFORMERS


Designed and tested according

· EN 61558-1, -2-1
· UL 5085-2
· CSA 22.2 No. 66

Typical applications

· Voltage adjustment
· Generation of four-wire networks based on three-wire network
· Power transfer

For use according to

· EN 60204-1

Basic equipment

· Separate windings
· Insulation class H (180°)
· Ambient temperature –25 to 40 °C
· Connection terminal (≤380 A)
· Frequency 50/60 Hz
· Winding: Copper (aluminium on request)

Other available accessories

· Protective enclosure IP23
· Additional tapping
· Additional winding
· Conductive screen winding
· Temperature monitoring

Sample order

· requested type DTU8,0
· requested rated input voltage 400 V
· requested rated output voltage 200 V
· requested vector group Dyn5

The correct type designation reads DTU8,0(400/200)Dyn5

Calculation of current:
I = S / (U x √3)
e.g.: S = 8kVA, U = 3 x 200V
I = 8000 / (230 x √3) = 23,09A
-> Fig. 1/column: >0-55A

The unique part number of your configuration will be defined by trafomodern during the offer- or order process

Technical notes

Notes:

  • Conductive screen winding is an additional shielding between primary and secondary sides
  • Transformer version with reinforced insulation upon request
  • CUR according UL-File XPTQ2.E168819 (Industrial Transformers, General Purpose – Component)
  • CUR according UL-File XPTQ8.E168819 (Industrial Transformers, General Purpose Certified for Canada – Component)

CAD-data

show

Rated power
kVA
Rated input voltage 1)
V (selectable)
Rated output voltage 1)
V (selectable)
TypePriceCu-factor 2)
8100 -750 (600)100-750 (600)DTU8,0(*/*)*Price on request12
10DTU10(*/*)*15
12,5DTU12,5(*/*)*20
16DTU16(*/*)*25
20DTU20(*/*)*30
25DTU25(*/*)*35
32DTU32(*/*)*40
40DTU40(*/*)*45
50DTU50(*/*)*50
63DTU63(*/*)*55
80DTU80(*/*)*60
100DTU100(*/*)*75
125DTU125(*/*)*85
160DTU160(*/*)*125
200DTU200(*/*)*160
250DTU250(*/*)*180
315DTU315(*/*)*210
400120 -750 (600)120 -750 (600)DTU400(*/*)*290
500DTU500(*/*)*370

1) EN/CSA bis 750V, UL bis 600V
2
) The calculation method of the material price surcharge will be explained in Section 2.1 in the general conditions of business.

 

DTU 8,0 – 125 / 0 – 380A

typetotal weightno-load lossesshort-circuit losses1)short-circuit voltageefficiencya3)b1e1e2fgcb2)cb2)cb2)cb2)cb2)
kgWW%0-55A>55-115A>115-150A>150-220A>220-380A
DTU8,050593174,20,9530016222413410×18316180332200340210360230
DTU1055653723,90,9630017322414510×18316190332210340220360240
DTU12,565735815,20,9539016835014210×18357200373220381220401250434250
DTU1680856464,70,9539018335015710×18357215373230381240401260434260
DTU201001118014,70,9545018835040015813×20417220433240441240461270494270
DTU2512513411755,70,9554020045050016014×20467230483250491260511280544280
DTU3215014414115,50,9554022045050018014×20467250483270491280511300544300
DTU4017519613974,50,9654024045050020014×20467270483290491300511320</