Industrial load is taking 500kW at 0.6 lagging pf. It is desired to raise the pf to 0.866 lagging using synchronous machines whose power input is 300-kW. Calculate the KVA rating of the motor required for such operation and

Industrial load is taking 500kW at 0.6 lagging pf. It is desired to raise the pf to 0.866 lagging using synchronous machines whose power input is 300-kW. Calculate the KVA rating of the motor required for such operation and

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 2.16P: A single-phase, 120V(rms),60Hz source supplies power to a series R-L circuit consisting of R=10 and...

See similar textbooks

Related questions

Q: E = K,ONvolts-where NIS Example 8.8. Afour-pole generator, having wa ve-wound armature winding has…

A: The solution is given below

Q: Binary codes. Convert from Gray code to binary X1 = 10101111. From the result obtained, apply a…

A: The solution is given below

Q: A transformer with a 240-V ac primary voltage and a 6:1 turns ratio has an output voltage ot 1,440 V…

A: Given data, A transformer with, V1=240 Va=N2N1=6:1

Q: 3. Given: o+15 V a) the gm b) Input resistance of the amplifier c) Input resistance seen by the…

A: We need to find out transconductance and input impedance for given circuit

Q: Q1 (a) The current, i, flowing in a wire is plotted in igure Q1(a).Obtain the charge, Q for 0 <t< 4…

Q: A power transformer with a voltage rating of 12500:240 V has a primary current rating of 50 A. Find…

A: given that, primary voltage VP = 12500 v secondary voltage Vs = 240…

Q: Design a combinational circuit that accepts a 2-bit number (AB) and generates a 5-bit binary number…

Q: To increase the overall current capability of the circuit connect thyristors in

Q: a) i) Sketch the sequence x[n] = sin(n. T/2) plotted against 'n' (the sketch should only go from n =…

Q: For the circuit shown below, use the superposition theorem and solve for the following: a. The…

Q: The eddy current loss of a given solid core is 80 W at 50 Hz. What would be the loss of 60 Hz if the…

A: The solution is given below

Q: frequency (MUF) for transmission at an angle of incidence of 75° is 20MHz. A) What is the critical…

A: In this question we will find critical frequency and optimum working frequency of transmission....

Q: (a) Let x(t) be a signal with Nyquist rate w,. In other words, X(w), the Fourier transform of x(t),…

Q: When it comes to semiconductors, how comparable is a diode to a transistor?

A: Comparison between diode and transistor: 1. Definitions: Diode: A semiconductor device…

Q: Find the current and voltage using superposition across the 4- kN resistor(I, and Vx, respectively).…

A: In this question, We need to determine the current and voltage across the 4k ohm using the super…

Q: Table Q1(a) Location Load Nos. Estimated Power Demand Factor (W) 200 Chandelier lamp Fluorescent…

A: Note: As per the policy we can solve only 3-sub parts of a question, please re-upload the remaining…

Q: Suppose that R1 14 2, R2 =9 N. Part A Figure < 1 of 1 Determine the value of I, in the circuit shown…

A: Given data, R1=14 ΩR2=9 Ω

Q: x² + ax+b (x-4)(x- 3) k1 k2 with a=4 and 3=b Find the coefficient of the given function F(x)= X-4…

A: The solution is given below

Q: (A) The induced emf and the magnetic flux across the rectangular loop are out of phase by 90°. (B)…

A: The generator is a electrical machine which is capable of converting the mechanical power input into…

Q: For the given circuit below, compute for the power dissipation of the diode. Si RL 8 k2 Vs 18 V

Q: Veltase. Regofite LM S177 Filter Voltage follower Non-invecting AP 2Transistors 2 LEDS LOv Vin. 55…

A: An electrical circuit consists of many components to reach the necessary output voltage which is…

Q: Question a, Draw a sine wave with a frequency of 250 Hz that lasts for a duration of 12 ms and…

A: Given a sinusoidal signal of 5V. f=50 Hz

Q: Convolution has the following propertises V communtative distributive V associative V time-shift

A: In this question we need to choose a correct option

Q: Compose the mesh equations. 10 Q j10 O j10 O ll ll 10 V [11] [ 12] へ)15V -j10 O sine sine @mesh 1:…

A: In this question, We need to determine the real and imaginary part of impedance

Q: The analysis of the voltage, V for the cireuit given in Figure Q4 can be expressed in the following…

A: Id =0.5882 V3 =200×0.5882=117.64 V

Q: A 5-ohm resistor is connected in series with a 25 micro-farad capacitor. A source voltage of 158…

Q: When we denote the direction of the line currents in a balance load, balance source system, t is…

A: Load is part of the electrical system which consumes the electrical power generated. The current is…

Q: 7.16 Consider the system shown in Fig. 7.85: (a) Find the transfer function from U to Y. (b) Write…

A: A transfer function is the ratio of the output given by the system to the input given to the system.…

Q: A d.c. series motor draws 25 A from a 260 V line while running at 900 rpm. It has an armature…

A: In this question we need to find a value of the diverter resistance Rd .

Q: Twelve Identical cells, each of E = 2V, and r = 0.5 Ω are connected to form a battery consisting of…

Q: Draw the Thevenin and Norton equivalent circuits and reconnect the load resistor R, 2i, + I, 5002 )…

Q: To place a text on the plot using a mouse, the command used is a) gtext O b) text O c) title() O d)…

A: If we want to place a text at a position of our interest in a graph we need to use the gtext command…

Q: Find the v(t) and i(i) in the circuit in Figure 9.17 4Ω ww v = 20 sin(10t + 30°) V 0.2 H Figure 9.17…

Q: storage batteries are connected in parallel to supply a load having a resistance of 0.1 Ω. The…

A: We need to find out current and voltage for given circuit

Q: Ideal Non-inverting Operational Amplifier tr

A: Discussion on Ideal Non-Inverting Amplifier:

Q: Ideal Non-inverting Operational Amplifier

A: Explanation on Ideal Non- Inverting Amplifier:

Q: (TCO 1) If the gain in decibels of an amplifier is 76.9, what is the straight gain? 6998 6578 6745…

A: Given, In an amplifier, the dB gain is 76.9.

Q: 2. y" — Зу" — 4y' + 12у 3D 12e t; у (0) %3D 4, - y'(0) = 2, y"(0) = 18

A: Formula for unilateral Laplace transform is given below:

Q: DrawD Flip Flop and give the outputs of the gates (every gate) for some inputs

A: D(Delay) Flip-Flop: The D-type flip-flop is a modified Set-Reset flip-flop with an inverter to keep…

Q: A full-wave rectified voltage of 18 V peak is connected to a 400uF filter capacitor. What are the…

Q: 3 Laplace transform of a signal x(t) is given as X (s) = e -3 S+ 1 I, Hint: use LT propertise -3s a.…

A: In this question we will find Laplace transform of given function using Laplace properties.... And…

Q: (b) Let x(t) be a real-valued signal with X (w) = 0 when |w| > 990n. Amplitude modulation is…

A: Brief description: Low pass filter is used to pass the frequencies which are within the higher cut…

Q: In an antenna array, the array factor depends on Tick all that apply. O Radiation pattern. O…

Q: Find the phase difference between these two. Also mention which one is leading. (i) I = 2 cos…

A: In this question, We need to determine the phase difference between current and voltage?

Q: In an FM system, if the maximum deviation is 60 KHz and the maximum modulating frequency is 9 KHz,…

A: Given that Maximum deviation ∆f= 60 KHz Maximum modulating frequency fm=9 KHz

Q: 3. Calculate the inductance of the line of the circuit as shown. The radius of conductor x is 20mm…

A: In this question we need to find a inductance of line

Q: A balanced delta connected load having an impedance Z, = 300 + j210 ohms in each phase is supplied…

Q: Ideal Non-inverting Operational Amplifier

A: Ideal Non-Inverting Amplifier:

Q: The output of a filter is given by Y(t) = X(t) + X(t – T) where X (t) is a WSS process with power…

Q: 30 20 MADE IN JAPAN 10 50 5 o| 500 200 100 10 21 0 100 20 4 150 30 6 200 40 50 2 250 10 2 .5 1 +10…

Concept explainers

Synchronous Motor

The synchronous motor is an AC electric type motor where at a steady-state the shaft rotation is synchronized with the supply current variable-frequency. To an integral number of AC cycles, the rotation period is exactly equal. The stator of the motor in the synchronous motor contains multi-phase AC electromagnets due to which a magnetic field is created that rotates in time with the oscillation of the line current. The rotor contains a permanent magnet and the rotor rotates in synchronization with the stator field at the same rate and provides the second synchronized magnetic field which is rotating in nature as a result. When the synchronous motor is supplied with independently excited multi-phase AC electromagnets on both the rotor and the stator, it is termed as a doubly-fed machine. The most widely used AC-type motors are the synchronous AC motor and the induction AC motors.

Question

An Industrial load is taking 500kW at 0.6 lagging pf. It is desired to raise the pf to 0.866 lagging using synchronous machines whose power input is 300-kW. Calculate the KVA rating of the motor required for such operation and the power factor at which the motor will operates.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps with 1 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, electrical-engineering and related others by exploring similar questions and additional content below.

Similar questions

6. Analyzing an AC power outlet: a. Identify the common names for measurements 1, 2, 3, and 4 for this voltage trace. In a country using 220 VAC as standard, what is the peak-to-peak voltage? b. C. A single-phase induction motor draws 4 Amps rms when operating in the country above. What is the apparent power usage? Please note the units. û 0 -û- 3 1 V 4
5. An inductive load consumes 10kW at 0.75 PF lagging. A synchronous motor with a pf of 0.9 leading is connected in parallel with the inductive load. What is the minimum required kW size of the synchronous motor so that the combined load will have a pf of 0.8 lagging.
A universal series motor, when operating on 220 V d.c. draws 10 A and runs at 1419 r.p.m. Find the new speed and power factor, when connected to 220 V, 25 Hz supply, the motor current remaining the same. The motor has total resistance of 1 ohm and total inductance of 0.1 H.
Alternator A (100 kVA, 3-f, 240 V, 60 Hz, 1800 rpm) is operating in parallel with alternator B (125 kVA, 3-f, 240 V, 60 Hz, 1800 rpm). The load of alternator A is 70 kW at 85% pf leading and the load of alternator B is 85 kW at 75% pf leading. Determine the pf of load.
O c. K = 101.86 and flux =3.33 mWb / pole O d. K = 59.5 and flux = 1.33 mWb/pole In a given DC motor, the output power is 45 HP, and the copper losses are 2.005 KW. If the rotational losses is one tenth of the output power, find the converted power and the efficiency of the motor. Select one: O a. None O b. Prony = 33.57 KW and % efficiency 89.2 % O c. Pcony = 39 KW and % efficiency 75.8 % O d. Pcony = 36.927 KW and % efficiency 86.2 % Ps Ae Pr Ai
A generating voltmeter is required to measure voltage between 15kV and 250kV. If the indicating meter reads a minimum current of 2uA and maximum of 35uA. Assume that the speed of driving synchronous motor is 1500rpm. Determine the capacitance of the generating voltmeter. A. 1,2 pF B. 6.5 pF C. 15,2pF D. 1 pF
The meter constant of a single phase 230 V, induction energy meter is 800 rev/ kWh. What will be the speed of rotation of meter disc in rpm for a current of 20 A at 0.7 pf lagging?
The current, power factor and input power to.a 3-phase ac motor is 8.07A, 0.65 and 5KW. Calculate the voltage through it. Select one: O a. None of these O b. 106V O c. 550V O d. 250V Next page
v. With reference to an 50 Hz3 phase alternator explain how P,Q,V and F are controlled.
Explain the prime mover in diesel plant and it's energy conversion
5. A welder machine operates automatically as follows : 30A current in 10 seconds, 20A in 10 sec., 10A in 10 sec. And finally 30A for 20 sec. To complete one cycle. What the equivalent rms value over one cycle?
A universal series motor, when operating on 220 V d.c. draws 10 A and runs at1400 r.p.m. Find the new speed and power factor, when connected to 220 V, 25Hz supply, the motor current remaining the same. The motor has total resistanceof 1 ohm and total inductance of 0.1 H.