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Network Analysis
Three Phase Circuits

Practice questions from Three Phase Circuits.

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Q#1 Three Phase Circuits GATE EE 2023 (Set 1) NAT +2 marks -0 marks

A balanced delta connected load consisting of the series connection of one resistor (R=15Ω) and a capacitor  in each phase is connected to three-phase,  supply terminals through a line having an inductance of  per phase, as shown in the figure. Considering the change in the supply terminal voltage with loading to be negligible, the magnitude of the voltage across the terminals  in Volts is ________ (Round off to the nearest integer).

Explanation:

Convert Δ connected load  to star

By this conversion phase voltage across load changes but line voltage remains same

By voltage division

Magnitude of load voltage per phase

Line to line voltage across load = 415 V