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Assignment -
Two Identical single-phase 200 kVA, 220/440 V are supplying a 3-phase load at 440 V in open-delta mode. The power factor of the load is 0.7 lagging. Calculate the following:
(a) The maximum secondary side line current without overloading the transformer.
(b) The amount of real power delivered by each transformer.
(c) The primary side line current.
(d) A third identical transformer is now added to complete the closed delta.
Calculate the percentage increase in real power supplied. Assume that the load voltage and pf remain same as 440 V and 0.7 pf lagging.
Develop Simulink model demonstrating this open - delta mode and verify the results obtained showing the respective waveforms.
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