Answer all Q1 (a) A balanced star connected load of (8 + j3) Q is connected to a 3-phase, 415 Vand 50 Hz supply.Draw the circuit diagram, indicating VRN, VRY and all line currents.Calculate:(i)(ii)The 3 line currents (IR, Iy and IB).The total real power (W) and power factor at the 3 phasesupply.(b)An unbalanced delta connected load consisting of the phase impedances ZRY(10+j3) 2, ZYB (12+j0) 2 and ZBr (8+j3) N is connected to a 3-phase, 440V, 50 Hz supply. Draw the circuit diagram including the implementation ofa 2 wattmeter power measurement.Using the information above:(i)(ii)Calculate the 3 load phase currents (IRY, IYB and IBR).Draw a scaled phasor diagram indicating all phase and linevoltages and the three load phase currents.Using the scaled phasor diagram or otherwise determine the 3line currents (IR, Iy and IB).(iii)

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QI (a) A balanced star connected load of (8+ j3) N is connected to a 3-phase, 415 V and 50 Hz supply. Draw the circuit diagram, indicating VRN, VRY and all line currents. Calculate: (i) (ii) The 3 line currents (IR, Iy and IB). The total real power (W) and power factor at the 3 phase supply.

QI (a) A balanced star connected load of (8+ j3) N is connected to a 3-phase, 415 V and 50 Hz supply. Draw the circuit diagram, indicating VRN, VRY and all line currents. Calculate: (i) (ii) The 3 line currents (IR, Iy and IB). The total real power (W) 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

Chapter3: Power Transformers

Section: Chapter Questions

Problem 3.49P: Consider the single-Line diagram of a power system shown in Figure 3.42 with equipment ratings...

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Analog to Digital Converters

The analog-to-digital converter (ADC) allows circuits controlled by microprocessors, Arduinos, Raspberry Pi, and various reasonable digital circuits to be connected to the real world. In the real world, analog signals have a continuous stream of information from a variety of sources and sensors capable of measuring sound, light, temperature, or movement, in addition to the many digital systems that interact with their environment by measuring analog signals from those transducers.

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Answer all

Q1 (a) A balanced star connected load of (8 + j3) Q is connected to a 3-phase, 415 V
and 50 Hz supply.
Draw the circuit diagram, indicating VRN, VRY and all line currents.
Calculate:
(i)
(ii)
The 3 line currents (IR, Iy and IB).
The total real power (W) and power factor at the 3 phase
supply.
(b)
An unbalanced delta connected load consisting of the phase impedances ZRY
(10+j3) 2, ZYB (12+j0) 2 and ZBr (8+j3) N is connected to a 3-phase, 440
V, 50 Hz supply. Draw the circuit diagram including the implementation of
a 2 wattmeter power measurement.
Using the information above:
(i)
(ii)
Calculate the 3 load phase currents (IRY, IYB and IBR).
Draw a scaled phasor diagram indicating all phase and line
voltages and the three load phase currents.
Using the scaled phasor diagram or otherwise determine the 3
line currents (IR, Iy and IB).
(iii)

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