A three-phase, three-winding, delta/delta/star, 33kV/1.1kV/400V, 200kVA transformer is shown in Figure. The secondary load is 150kVA at 0.8 lagging power factor, and the tertiary load is 50kVA at 0.9 lagging power factor. The magnetizing current is 4% of the rated load, and the iron loss is 1kW.

Figure: Three-Phase Transformer Calculate per-phase values of

(i) Secondary current

(ii) Tertiary current

(iii) Magnetizing current

(iv) Iron loss current.

Transcribed Image Text:

12 12/V3 111 |1/ 3 400V/V3 33kV 흐 1.1kV 등 400V s primary 13 secondary tertiary Figure Q1: Three-Phase Transformer 12 12/V3 111 |1/ 3 400V/V3 33kV 흐 1.1kV 등 400V s primary 13 secondary tertiary Figure Q1: Three-Phase Transformer

Answer rating: 100% (QA)

YV 33kv11kv400V Secondary load 150 KVA at 08 Tertiary load 5... View the full answer