Typical electrical characteristics of LV/LV 50 Hz transformers

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Scope and content of Wiki EIG
General rules of electrical installation design
Connection to the MV utility distribution network
Connection to the LV utility distribution network
MV & LV architecture selection guide
LV Distribution
Protection against electric shocks
Sizing and protection of conductors
LV switchgear: functions & selection
Protection against voltage surges in LV
Energy Efficiency in electrical distribution
Power factor correction and harmonic filtering
Power harmonics management
Characteristics of particular sources and loads
PhotoVoltaic (PV) installation
Residential and other special locations
ElectroMagnetic Compatibility (EMC)





3-phase
kVA rating 5 6.3 8 10 12.5 16 20 25 31.5 40 50 63 80
No-load losses(W) 100 110 130 150 160 170 270 310 350 350 410 460 520
Full-load losses (W) 250 320 390 500 600 840 800 1180 1240 1530 1650 2150 2540
Short-circuit voltage (%) 4.5 4.5 4.5 5.5 5.5 5.5 5.5 5.5 5 5 4.5 5 5
 
kVA rating 100 125 160 200 250 315 400 500 630 800
No-load losses(W) 570 680 680 790 950 1160 1240 1485 1855 2160
Full-load losses (W) 3700 3700 5900 5900 6500 7400 9300 9400 11400 13400
Short-circuit voltage (%) 5.5 4.5 5.5 5 5 4.5 6 6 5.5 5.5


1-phase
kVA rating 8 10 12.5 16 20 25 31.5 40 50 63 80 100 125 160
No-load losses (W) 105 115 120 140 150 175 200 215 265 305 450 450 525 635
Full-load losses (W) 400 530 635 730 865 1065 1200 1400 1900 2000 2450 3950 3950 4335
Short-circuit voltage (%) 5 5 5 4.5 4.5 4.5 4 4 5 5 4.5 5.5 5 5
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