DTFSP – Three-phase autotransformers


Designed and tested according

· IEC/EN 61558-2-13 / EN 60076-11

Typical applications

· Voltage adjustment

Basic equipment

· Ambient temperature –25 to 40 °C
· Connection terminal (<=115 A) · Frequency 50/60 Hz · Vector group Yna0 · Maximum load to neutral point: 10% of nominal current

Other available accessories

· Protective enclosure IP23
· Additional tapping
· Temperature monitoringg
· auxiliary winding

Sample order

· required throughput rating 220 kVA
· required rated input voltage 690V
· required output voltage 400V

Notes for selection:

· ST = SN x (1 – Lowervoltage / Highervoltage)= 220 kVA (1 – 400V/690 V) = 92,5 kVA
· ST = type power = power, which is relevant for the size of the transformers
· SN = nominal power = power, which is the relevant figure of the load of the transformers

The type rated power is always smaller than the throughtput rating.

Versions with delta stabilizing winding on request.

The correct type designation reads DTFSP100(690/400).

The unambiguous article number of your configuration will be defined by trafomodern during the offer- and order process.

Technical notes

Important notes:

For versions with increased climate resistance, the transformer is supplied with a specially insulated finish. The finish allows the transformer to be used in areas of high humidity.

  • CUR according to EIS 130 or EIS 155 to OBJY2. or OBJY8.E160829 (Systems, Electrical Insulation – Component bzw. Systems, Electrical Insulation Certified for Canada – Component)

When ordering, the following information must be added to the type designation:DTFSP100(*/*)

  • 1st place holder ≙ rated input voltage
  • 2nd place holder ≙ rated output voltage

 

CAD-data

show

Type rating for use according to insulation class 1) B kVAType rating for use according to insulation class 1) F kVARated input voltage V (selectable)Rated output voltage V (selectable)TypePrice per unit EuroPrice for currents up to ACu-factor 2)
12,51550-100050-1000DTFSP12,5(*/*)Price on requestPrice on request28
161950-100050-1000DTFSP16(*/*)30
2022,550-100050-1000DTFSP20(*/*)48
253050-100050-1000DTFSP25(*/*)50
323750-100050-1000DTFSP32(*/*)52
404650-100050-1000DTFSP40*/*)55
5057,550-100050-1000DTFSP50(*/*)75
6373,550-100050-1000DTFSP63(*/*)80
8089,550-100050-1000DTFSP80(*/*)110
100111,550-100050-1000DTFSP100(*/*)100
12515050-100050-1000DTFSP125(*/*)115
16018050-100050-1000DTFSP160(*/*)120
20022550-100050-1000DTFSP200(*/*)180
25028050-100050-1000DTFSP250(*/*)180
31536050-100050-1000DTFSP315(*/*)195
40045050-100050-1000DTFSP400(*/*)300
50058050-100050-1000DTFSP500(*/*)360

1) Rated output when used according to insulation class B, maximum of 130° C; for insulation class F maximum of 155° C
2) The calculation method of the material price surcharge will be explained in Section 2.1 in the general conditions of business.

typetotal
weight
no-load
losses
short-circuit
losses
short-circuit
voltage
efficiencyabb1cc1efø g
kgWW%
DTFSP12,58085380*)0,9645020417343436040014313 x 20
DTFSP1690110400*)0,9745021918743436040015713 x 20
DTFSP20117120410*)0,9745023420343436040017313 x 20
DTFSP25140140580*)0,9754024051745017014 x 20
DTFSP32155180700*)0,9754026751745019714 x 20
DTFSP40185230700*)0,9754029751745022714 x 20
DTFSP50245260850*)0,9769028057257523014 x 20
DTFSP632803201260*)0,9769031057257526014 x 20
DTFSP803302901890*)0,9776026072057520014 x 20
DTFSP1003453802380*)0,9776029072057523014 x 20
DTFSP1254504602600*)0,9876033072057527014 x 20

*) depending on the voltage ratio
all dimensions in mm

typetotal
weight
no-load
losses
short-circuit
losses
short-circuit
voltage
efficiencyabb1cc1efø g
kgWW%
DTFSP1605506203650*)0,9884050045079075070522018
DTFSP2006207004000*)0,9884050045079075070522018
DTFSP2507308204700*)0,9884050045079075070527018
DTFSP31598011606350*)0,98102050045097093070526018
DTFSP400110011606400*)0,98102050045097093070526018
DTFSP500138015505850*)0,98102050045097093070532018

*) depending on the voltage ratio
all dimensions in mm