Question
Download Solution PDFThree identical impedances are connected in delta. The load is supplied by a 3-phase supply of 300 V. The line current is \(\rm 30\sqrt3\,A\). Calculate the impedance per phase.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept
For delta connected system:
VL = VP
\(I_p={I_L\over \sqrt {3}}\)
For star-connected system:
\(V_p={V_L\over \sqrt {3}}\)
IL = IP
where, VL and IL are line voltage and line current respectively
VP and IP are phase voltage and phase current respectively
Calculation
Given, VL = VP = 300 V
IL = \(\rm 30\sqrt3\,A\)
\(I_p={30\sqrt{3}\over \sqrt {3}}=30A\)
\({R}={300\over 30}=10\Omega\)
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