The following loads are connected to a 3 phase 3 wire supply, 415V 50Hz supply. Between Red and yellow lines is a non-inductive resistive load of 60;between Yellow and Blue lines is a coil of inductive reactance of 30.2 and resistance 40.2 and between Blue and Red lines is a capacitor of 100 μF.Calculatea. Phase Current and Line Current for each connected load.b. The power for each respective load.c. The total overall power

a) To calculate the phase current and line current for each connected load, we'll use the formulas…

Answered: The following loads are connected to a…

Electric Motor Control

10th Edition

ISBN:9781133702818

Author:Herman

Publisher:Herman

Chapter3: Magnetic Starters

Section: Chapter Questions

Problem 30SQ

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Task 3 A three phase, four wire star connected load consisting of: ZR: a resistor of 9500 in series with a 3H inductor ZB: a resistor of 1950 ZY: a resistor of 1950 in series with a 4µF capacitor Using the equipment available in the power lab (Room T017), connect the given load to a three-phase supply available in the lab and: 3.1. Determine the current of each line and the neutral current and measure the total power supplied by the source. 3.2. Analytically, calculate all currents and the total power and compare with those obtained in measurements. 3.3. Device a method and measure the waveform of the neutral current. Discuss the obtained waveform and the reason for any distortion in the waveform 3.4. Validate your calculations using computer simulation
A moving coil ammeter and a moving iron ammeter are connected in series with arectifier across 110V (r.m.s.) AC supply. The total resistance of the circuit in theconducting direction is 60 ohm and that in the reverse direction may be taken asinfinity. Assuming the waveform of the supply voltage to be sinusoidal, calculate thereadings in each ammeter
15) Kirchhoff's Voltage Law (KVL) states that A) the product of the phasor voltages around any closed path must equal zero. B) the sum of the phasor voltages around any closed path does not have to equal zero. C) the sum of the phasor voltages around any closed path must equal zero. D) the sum of the phasor voltages around a closed path cannot include "through the air."
The ACSR conductor Falcon is used in a 3-phase equidistant configuration with D = 25 feet. The per kilo feet inductive reactance will be: O A. 1.0025 B. None of choices are correct C. 0.1418 O D. 0.0556 O E. 0.707
The ACSR conductor Falcon is used in a 3-phase equidistant configuration with D = 42 feet. The per kilo feet inductive reactance will be: O A. 0.1537 B. 0.8117 O C. 0.1475 O D. 0.1148 O E. None of choices are correct
3. The secondary voltage can rise above its rated value when the load is a. resistive. b. capacitive. C. inductive. d. an RL series combination.
What is the expected voltage drop across each load in this circuit?
Two impedance coils A and B are connected in series to a 111-volt ac source. Coil A has a resistance of 12 ohms and an inductive resistance of 16 ohms. Coil B has a resistance of 24 ohms and an inductive reactance of 10 ohms. Calculate the voltage drop across each coil. Only in rectangular form
QUESTION 19 E-06, PC-02. Three inductors 15 mH, 15 mH and 15 mH are connected in series. What is the total inductance? O 5 mH. Without knowing the coupling factor the total inductance cannot be found. 45mH. QUESTION 20 E-06, PC-05. Why are the iron cores of most induction coils laminated? To increase the core permeability. O To reduce the core reluctance. O To reduce the effects of eddy currents. Click Save and Submit to save and submit. Click Save All Answers to save all answers. MacBook Air 888 F7 FB F6 F4 F3 F2 & 23 $ 4 5 0 8 3 Y W E と S D S F G >> J しのくつつ >
A single-phase, 120V(rms),60Hz source supplies power to a series R-L circuit consisting of R=10 and L=40mH. (a) Determine the power factor of the circuit and state whether it is lagging or leading. (b) Determine the real and reactive power absorbed by the load. (c) Calculate the peak magnetic energy Wint stored in the inductor by using the expression Wint=L(Irms)2 and check whether the reactive power Q=Wint is satisfied. (Note: The instantaneous magnetic energy storage fluctuates between zero and the peak energy. This energy must be sent twice each cycle to the load from the source by means of reactive power flows.)
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Convert the following instantaneous currents to phasors, using cos(t) as the reference. Give your answers in both rectangular and polar form. (a) i(t)=5002cos(t30) (b) i(t)=4sin(t+30) (c) i(t)=5cos(t15)+42sin(t+30)

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