800kva Cast Dry Transformer
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800kva Cast Dry Transformer Design Sheet
Transcript of 800kva Cast Dry Transformer
1. SPECIFICATIONS:
KVA : 800 Taps(+ve to -ve)@Step : 5% 5% 2.5
HighVoltage(V) : 20000 Phases : 3
LowVoltage(V) : 400 K-FACTOR : 0.45
Current Density (LV)(A/mm^2): 1.13 LV & HV Connection : Star Delta
Current Density(HV) 1.33 Winding Material(LV) : AL
Frequency(Hz) : 50 Winding Material(HV) : Al
No-Load-Loss(W) : 2200 2185 Type of Cooling : AN
Full_Load-Loss(W) : 7500 7172 Winding/Amb Temp(DegC) : 100 40
Impedance% : 6.5 6.57 Vector Group : DYN-11
2. CLEARANCES
Core-LV1(mm) : 15 HV Tap Break(mm) : 21
LV1-LV2 Coil Gap(mm) : 14 Phase To Phase(mm) : 21
LV-HV(mm) : 45 HV Coil Qty(Nos) : 13
HV-HV Coil Gap(mm) : 12 LV Coil Qty(Nos) : 1
LV/HV To Yoke(mm) : 30 60 Cast Resin(in/out/up&bot) : 2 7 23.5
3.CORE SPECS
CORE DIAMETER(MM) : 228 FRAM SIZE(Dia/WH/CC)mm : 228 970 540
NET CORE AREA [cm2] : 372.31 REACTANCE(%) : 6.52
TYPE OF CORE : M5 RESISTANCE(%) : 0.8475
CORE WEIGHT : 1556 IMPEDENCE(%) : 6.57
FLUX DENSITY(T)&(W/kg) : 1.6 1.17 F.D(W/M^2)-LV1-LV2-HV 671 249 249
4.WINDING DATA LV1 LV2 HV WINDING
Phase Voltage(Volts) : 230.9 230.9 20000 :
Line/Phase Amps(A) : 1154.9 1154.9 13.3 :
Winding Type : :
Cond Area(mm^2) : 1022 1022 10 :
Conductor Size Width(mm) : 820 820 50 :
Conductor Size Depth(mm) : 1.2 1.2 0.2 : 258
Conductor Insu(mm). : 0 0 0 : 260
Layer_Insulation : 0.13 0.13 0.023 : 286
Covering Size Depth(mm) : 1.33 1.33 0.223 : 289
Turns/Limb : 18 - 1559 :
Section Per Coil(Split) : 2 - 13 : 317
No.in Parallel Cond Axial : 1 1 1 : 319
No.in Parallel Cond Radial : 1 1 1 : 345
Turns/Section : 9 9 1637 : 348
No. of Layers : 9 9 126 :
Turns/Layers : 13 : 438
Inner Diameter(mm) : 260 319 442 : 442
Outer Diameter(mm) : 289 348 519 : 505
Radial Thick(mm) : 12.88 12.88 31.603 : 519
Oil Duct (mm x no) : 0 :
Winding Length(mm) : 820 803 :
Total Wind length (mm) : 840 850 :
WT bare/Cover(Kg) : 146 202 :
Resis@-75DegC : 0.000580391 8.402217868 :
I^2 R Losses/Ph(W) : 774 1486 :
Eddy+Stray Losses(W) : :
Temperature Rise(DEGC) : 78.6 85.5 94.3 :
TransPosition : Nill Nill :
Impulse Level(BIL) : 28 125 :
Type of Winding : Round Round
392
CAST RESIN DRY TYPE TRANSFOREMER DESIGN
TAP WINDING
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