Q1 (a) A balanced delta connected load of (10 + j3)N is connected to a 3-phase,415V,50HZ supply.Draw the circuit diagram, indicating VRN, VRY and all line currents, andfrom this calculate:(i)(ii)(iii)The 3 load phase currents (IRY, IYB and IBr).The 3 line currents (IR, Iy and Is).The total real power and power factor at the 3 phase supply.(b) An unbalanced 4 wire star connected load consisting of the phaseimpedances Zrs (15+j5)N, Zys (10+j0)N and ZBs (18-j6)N is connected to a3-phase, 440V, 50HZ supply. Draw the circuit diagram including theimplementation of a 2 wattmeter power measurement and from this:(i)(ii)Calculate the 3 line currents (IR, Iy and IB).Construct a scaled phasor diagram and using this or otherwisedetermine the star/neutral current ISN. Include VRY and VrB onthe phasor diagram.Calculate the necessary wire diameter for the star/neutralconnection to achieve a current density of 3A/mm?.(iii)(c) Determine the total real supply power (W) for Q1(b) based on the 2wattmeter measurements.

Draw the 3phase system with balance load Find the line current and phase current Find the active…

Q1 (a) A balanced delta connected load of (10 + j3)N is connected to a 3-phase, 415V,50HZ supply. Draw the circuit diagram, indicating VRN, VRY and all line currents, and from this calculate: (i) (ii) (iii) The 3 load phase currents (IRY, IYB and IBR). The 3 line currents (IR, IY and IB). The total real power and power factor at the 3 phase supply.

Q1 (a) A balanced delta connected load of (10 + j3)N is connected to a 3-phase, 415V,50HZ supply. Draw the circuit diagram, indicating VRN, VRY and all line currents, and from this calculate: (i) (ii) (iii) The 3 load phase currents (IRY, IYB and IBR). The 3 line currents (IR, IY and IB). The total real power and power factor at the 3 phase supply.

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter2: Fundamentals

Section: Chapter Questions

Problem 2.52P: A balanced three-phase load is connected to a 4.16-kV, three-phase, fourwire, grounded-wye dedicated...

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