Question

In a delta connected system, the voltage across the terminals R and Y is 400∠0⁰. Calculate the line voltage VRY. Assume RRY phase sequence. (a) 400∠0⁰ (b) 400∠120⁰ (c) 400∠-120⁰ (d) 400∠240⁰ The question was posed to me in an interview. Asked question is from Voltage, Current and Power in a Delta Connected System topic in section Polyphase Circuits of Network Theory Select the correct answer from above options network theory questions and answers, network theory questions pdf, network theory question bank, network theory gate questions and answers pdf, mcq on network theory pdf, gate network theory questions and solutions, network theory mcq Test , ies network theory questions, Network theory Questions for GATE EC Exam, Network Theory MCQ (Multiple Choice Questions)

Answer 1

Right answer is (a) 400∠0⁰ For explanation I would say: In a balanced delta-connected system we know |VRY| = |VPh|, and it is displaced by 120⁰, therefore the line voltage VRY is VRY = 400∠0⁰V.