ngle phase 50 Hz motor takes 10A at 0.8 power factor lagging from a 240 V supply calculate: (i) The active and reactive components of the current (ii) The power taken from the supply (iii) The output of the motor if the efficiency of the motor at this load is 0.85 per unit.

ngle phase 50 Hz motor takes 10A at 0.8 power factor lagging from a 240 V supply calculate: (i) The active and reactive components of the current (ii) The power taken from the supply (iii) The output of the motor if the efficiency of the motor at this load is 0.85 per unit.

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 2.21P: An industrial plant consisting primarily of induction motor loads absorbs 500 kW at 0.6 power factor...

See similar textbooks

Related questions

Q: L₂=20A Q.41: For the current locus diagram shown beside: Draw the equivalent electric circuit…

A: Given A current root locus diagram.we need to draw the equivalent electric circuit and we need to…

Q: The spectrum of Visible light consists of X-rays O Gamma rays O Radio waves Non of them O…

A: given here multiple choice question and asked to find the specctrum of visible light consists.

Q: Shunt and series generates can connected in parallel. O True O False

A: Generator:- It is used to convert mechanical energy to electrical energy. DC and AC generators are…

Q: 9. Draw the phasor diagram of the 2 succeeding currents if it is out of phase by an acute angle

A: Expression for Current waveforms with a phase difference of an acute angle is represented as, I1 =…

Q: The circuit parameters in the circuit in Figure are R = 2.5kn, L = 50mH, and C = 2nF. If lac = 40mA,…

Q: For the circuit shown, determine the current drawn from the 15V battery, It. Find I1, I2 I3 and I4

A: To solve above problem, we must know Ohm’s law and Kirchhoff’s law: Ohm's law state that in a…

Q: b) The magnitude plot of a transfer function G(s)= (1+s/8X1+bsX1+s/36) K(1+0.55X1+as) shown in…

Q: For the following circuit, the resistance of R2 is 20 mA SR2 SR3 •2ΚΩ 100 mA SR1 2ΚΩ 4 Ω 8 ΚΩ Ο 2 ΚΩ…

A: given here a electrical circuit and asked to find the value of resistor R2.

Q: Illustrate the working of differential pressure transmitter with neat diagram.

A: An electrically insulating fill fluid (often a liquid silicone compound) transfers motion from the…

Q: Find u (1) in the circuit shown in Fig. 16.9. Note that, since the volt- age input is multiplied by…

Q: Three responses are in figure below is true or False? Initial disturbance Initial disturbance f Time…

A: 1. This is false as it is overdamped to the desired value that is 0. If it was undamped then value…

Q: 1. To safeguard the MOSFETS, an electronic device called Zener diode is 2. The channel of MESFET…

A: In this question we will answers question related to MOSFET.... Note :- as per our guideline , I am…

Q: and b) Draw the S.F.G and obtain the transfer functions R₁ using Mason's gain formula. R₁(s) G₁ H₁ 2…

Q: 7). selector/multiplexer. Implement the logic function specified in Table by using a 74HC151 8-input…

A: The output can be obtained from the truth table and the same can be implemented by using 8x1…

Q: * The 0.6 m rod of a metal elongates 0.67 mm on heating from 35 to 90 C. Determine the value of the…

A: We need to find out the coefficient for length

Q: 6. Determine the transfer function V.(s)/Vi(s). R₂ www moo +₂ Vi(s)-ME R₂ C₁ 6₂ HE + Vo (s)

Q: 41. Let J = 10y²z a¸ − 2x²y a₂ + 2x²z α₂; and find the total current crossing the surface x = 3, 2 ≤…

Q: 15. Which of the following is TRUE? a. A conductor has a large amount of energy gap between…

Q: A dc separate excited generator operate at speed = 1500 R.P.M at a certain excitation gives a…

Q: For the following magnetic circuit, the flux passing through the cast iron core is 0.45 mWb. If the…

A: In this question we need to find a number of turn on the coil

Q: Q3) Given the circuit in Fig. 3. calculate the current i, through t, using mesh analysis 3A fis 6 A…

A: Note: Since the voltage across the current sources are unknown, hence mesh analysis is not…

Q: 12. Identify which of the following is the unit of magnetic flux density? a. Weber per centimeter…

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

Q: 29. What is the value of current density at (0, 0, 1) when magnetic field intensity is: A H = y cos…

A: The value of current density at (0,0,1) when magnetic field intensity given: H=ycos2x ax+y az Am…

Q: (6) Apply Norton's theorem to find Vo in the circuit of Fig. 6 4Ω ΤΩ 34 16Ω Figure 6 Μ 5Ω 12 V 10 Ω

Q: 5. Determine the transfer function I.(s)/IT(S)

A: It is given that:

Q: A 10 MVA three phase load is to be served by a three phase transformer at a line voltage of 13.8 kV.…

A: Transformer is the static device it is used to transfer the electrical power from one terminal to…

Q: In the center tapped full-wave rectifier the PIV is VM in diodes under blocking state O Higher than…

Q: Q.5: a) Correct any five of the following sentences using suitable scientific phrases. tion whan…

A: We are authorized to answer three subparts at a time, since you have not mentioned which part you…

Q: Please solve asap my deadline is very close

Q: (6) Apply Norton's theorem to find Vo in the circuit of Fig. 6 4Ω ΤΩ ΜΕ 34 16 Ω 5Ω 12V 10 Ω

Q: 41. Let J = 10y²z ax − 2x²y αy + 2x²z α₁ and find the total current crossing the surface x = 3, αz;…

A: Current: It is the time rate of the change of the charges. It is also known as the flow of the…

Q: A price change causes the quantity demanded of a good to decrease by 30%, while the total revenue of…

Q: Find the Fourier Series for the following common repetitive waveforms. a. Half-wave rectified sine…

A: Since you have posted multiple different question. we will solve the first question for you. To get…

Q: C) Why is the common collector amplifier called an emitter follower? Why is it often used as a…

A: (C) Common collector amplifiers are those transistor amplifier in which the input and output…

Q: Determine the Fourier transform for the signal x(t) given in Figure Q1(a). An arbitrary system has…

Q: Use Thevenin's theorem to find 1, in the circuit in Fig.1. 2/0° A -j2 카 4/0° A 6/0° V In To Fig.1 10

Q: An electric heater with a resistance of 40 ohms and a current of 5 amperes. What is the voltage? O…

Q: An inductive load of 100 Ohm and 200mH connected in series to thyristor supplied by 200V dc source.…

A: In this question we will find that SCR will be fired or not by given data...

Q: A d.c. circuit usually has .......... as the load Oresistance Oinductance Ocapacitance hoth…

A: We know that a simple DC circuit usually consists of a current source (Usually battery) and one or…

Q: 3. Classify the following linear differential equations according to whether they are time-variable…

Q: 19. Two metallic plates seperated by 9.8 cm. If a plastic material is inserted between the plates of…

A: Take the ratio of capacitor with plastic material as a dielectric and without dielectric to find…

Q: 63. The vector field in spherical coordinate system: A=4sina0. Determine the value of its…

A: given the vector field in spherical coordinate system is A=4 sinϕ aθhere we have to find the value…

Q: Determine the transfer function Io(s)/IT(S)

A: Given: Required: Transfer function I0sITs

Q: SHOW YOUR COMPLETE SOLUTION, MAKE SURE YOUR ANSWERS ARE IN 4 DECIMAL PLACES. Three uniform sheets…

A: For the above given 3 uniform sheet charges we need to calculate the net electric field at the given…

Q: In the network of Fig.4, find Vx-y using Thevenin's theorem. R₁= 392 R₂= 202 2A (^ I R₂=202 0-1V 02…

Q: What is the instantaneous maximum value of power

A: The incandescent lamp act as a resistive load. So, its power factor is unity. The rms current…

Q: 0.114 U1 114.387 AC 10MOhm R1 m 1kQ U4 AC 1e-090hm V1 120Vrms 50Hz 0° U2 0.036 AC 10MOhm L1 1mH U3…

A: given here a electrical circuit and asked to find the current and voltages..

Q: Find the steady-state is (a) w = 400rad/s, 100 cos (wt) mA 375 mH 12 cos (400 t) V 100 S2 ww vo(t) +…

Q: . Determine the transfer function I.(s)/IT(S) R₂ WW R₁ www 6₂ (E) G₁ = 6₂ R3 MM i₂ (t)

Q: 14. Which of the following is a condition that must be met in order to qualify for the exemption…

A: Since #14 and #17 are two different questions, as per the guidelines, #14 has been solved in the…

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

A single phase 50 Hz motor takes 10A at 0.8 power factor lagging from a 240 V supply
calculate:
(i) The active and reactive components of the current (ii) The power taken from the supply (iii)
The output of the motor if the efficiency of the motor at this load is 0.85 per unit.

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 3

VIEW

Step by step

Solved in 3 steps

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

A 489V shunt motor delivers 30hp at the shaft at 1120rpm. If the motor has an efficiency of 86% at this load, determine the (a) total input power and (b) line current.
An induction motor load of 1500 watts with a power factor of 0.75 is combined with a 500 volt amperes of synchronous motor with a power factor of 0.65 leading. What kvar of capacitors is required to correct the overall power factor of the two groups of motors to 0.95 lagging? What percent reduction in volt amperes results?
A 240 kVA synchronous motor of rated apparent power consumes 95 kW of active power of the power grid. And it is possible to adjust it so that by working with this same active power, it compensates the power factor by providing reactive power (i.e., appearing with a capacitive component). How can you get this? What is the maximum reactive power that it can provide?
The load of an industrial concern is 400 kVA at a power factor of 75 percent, lagging. An additional motor load of 100 kW is needed. What is the new kilovoltampere load and power factor of the load if the motor to be added is ... an induction motor with a power factor of 90 percent, lagging? A) kVA a) 450.1 kVA b) 507.8 kVA c) 623.2 kVA d) none of the above B) Power Factor a) 78.7 % lagging b) 83.4 % lagging c) 93.5 % leading d) none of the above ... a synchronous motor with an 80 percent power factor, leading? C) kVA a) 442.5 kVA b) 305.4 kVA c) 236.3 kVA d) none of the above D) Power Factor a) 63.3 % lagging b) 81.9 % lagging c) 90.3 % leading d) none of the above E) What must be the power factor of the added 100-kW load if it were to improve the overall plant power factor to 100 percent? a) 93.8 % leading b) 77.1 % leading c) 35.4 % leading d) none of the above
A farm house is located at the end of a country road in northern Michigan. The Thévenin impedance seen looking back into the power line from the electrical distribution panel is 0.2+j0.2 Ω. The Thévenin voltage is 240 V rms 60 Hz ac. A 2-hp 240-V-rms capacitor-start motor is used for pumping water. We want to estimate the voltage drop observed in the house when the motor starts. Typically, such a motor has a power factor of 75 percent and an efficiency of 80 percent at full load. Also, the starting current can be estimated as six times the full-load current. Estimate the worst-case percentage voltage drop observed when the motor starts.
A 25 MVA turbo - alternator is working on full load at a power factor of 0-8 and efficiency of 97%. Find the quantity of cooling air required per minute at full load, assuming that 90% of the total losses are dissipated by the internally circulating air. The inlet air temperature is 20 ° C and the temperature rise is 30 ° C. Given that specific heat of air is 0-24 and that 1 kg of air occupies 0-8 m3. (890 m3 / minute
In a 3-phase induction motor, express the mechanical power developed, in terms of air gap power Pg.
A 50kVA, 550V single phase alternator draws a field current 10A at rated load. With the same field current, the open circuit emf and shirt circuit current are 300V and 150A. The ohmic resistance of the armature between terminals is 0.18Ω. The ratio of effective to ohmic resistance may be taken as 1.5. Determine the terminal voltage at 0.8 pf factor lagging. Use two decimal places.
A 4-pole alternator, on open-circuit, generates 200 V at 50 Hz when the field current is 4 A.Determine the generated EMF at a speed of 1200 rpm and a field current of 3 A, Neglect saturation in the iron parts.
A drilling machine is driven by a single-phase induction machine connected to a 110 V RMS supply. Assuming that the machining operation requires 1 kW, that the tool machine has 90 percent efficiency, and that the supply current is 14 A RMS with a power factor of 0.8. Find the AC machine efficiency.
A 400hp induction motor and a 400hp synchronous motor both are operating at 90% efficiency. The induction motor power factor is 0.8 lag. The synchronous motor power factor is unity. How many amperes of incandescent lighting may be added to the plant at the same KVA load if the synchronous motor is operated at a leading power factor 0.8? The supply is 600V, 3-phase.
The power factor of a load of 400kW is 0.4 lagging. It is desired to improve this power factor to 0.7 lagging by using the over excited synchronous motor. If the synchronous motor takes 70 kW,find, 1.Power factor of synchronous motor 2.Leading kVAr of synchronous motor 3.kVA of synchronous motor.