Answered: 230V shunt motor delivers 37hp at the…

230V shunt motor delivers 37hp at the shaft at 1120rpm. If the motor has an efficiency of 89% at this load, determine the total input power.

Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)

10th Edition

ISBN:9781337399128

Author:Russell E. Smith

Publisher:Russell E. Smith

Chapter8: Basic Electric Motors

Section: Chapter Questions

Problem 14RQ

See similar textbooks

Related questions

Q: A 400 V, 50 Hz, 30 hp, three-phase induction motor is drawing 50 A current at 0.8 power factor…

A: Referring to the question, the given data are:

Q: A dc series motor drives a load a 30revs and takes a current of 10A when the supply voltage is 400V.…

Q: a current of 30 A while running at 700 rpm. The armature and series field resistances are 0.1 Ω, 0.2…

Q: A 400 V, 50 Hz 30 hp, three-phase induction 50 A current at 0.8 power factor lagging. The stator and…

A: Given values are - Vt=400VI=50Acosϕ=0.8laggingStator copper lossPS=1500WRotor copper…

Q: 2. A DC motor with an internal resistance of 10 2 and a voltage constant Kv = 0.10 V/rad/sec is…

A: When load is not connected , Motor draw very less current from source We can neglect for the…

Q: A 220V shunt generator is being powered by 36.5 Hp prime mover. if the armature resistance is 0.025Ω…

Q: C.ttlAsiacell موعد التسليم ۱6 حزیران ۱۲:۲۰ م A universal series motor has a resistance of 30 and an…

Q: An ideal 120V 2HP motor draws an apparent power of 1800w from the source. Determine it's power…

A: In this question the apparent power and active power are given ,so as we know power factor is the…

Q: A 220-volt 15 HP motor has an output of 12HP at an efficiency of 83%. A P12.00 per KWHR, determine…

Q: A Wattmeter measures the input power of the motor in Question 13 to be 5650 W. What is the…

A: Evaluating the horse power of the motor:

Q: Q18. What will be the operating power factor of a 3-phase induction motor, whose ratings are 230 V,…

A: In this question we need to find a operating power factor of a 3 phase induction motor

Q: A 220-volt 15 HP motor has an output of 12HP at an efficiency of 83%. A P9.00 per KWHR, determine…

A: Input in KW = output power/ efficiency. Energy = power in KW × time in hours KWh. Cost of energy…

Q: fill in the blank : In a DC Motor,efficiency is the ratio of the output power to the power…

A: b) electrical Efficiency is output / input So here Input electrical energy Output mechanical energy…

Q: An alternator has 8 poles. (a) At what speed must the machine be driven to develop 75 cycles? 40…

Q: (c) Briefly explain the operation of an alternator. A 440 V, shunt motor has armature resistance of…

Q: A 425V, 3-phase Induction motor has output of 30HP and operates at power factor of 0.75 lagging with…

Q: 4.3 The power supplied to a three phase induction motor is 32 kW and the losses are 1200 W. If the…

A: In this question we will find output power...

Q: A 13kV/50Hz/50MW generator is rotated at 750 rpm. The mechanical power loss of the system is %10…

A: given data: A 13kV/50Hz/50MW generator is rotated at 750 rpm. The mechanical power loss ofthe system…

Q: A 220-volt 15 HP motor has an output of 13HP at an efficiency of 83%. A P10.00 per KWHR, determine…

A: More than 50 percent of total loads are motor. examples are IM for Water pumping application, Motor…

Q: A) Find the power factor B) if the internal induced voltage is the same as the line voltage at the…

Q: 1. The speed of a motor falls from 1100 r.p.m. at no-load to 1050 r.p.m. at rated load. The speed…

A: Given data, No load speed Nnl=1100 rpm Rated speed Nfl=1050 rpm

Q: Calculate the output torque of a motor in lb-ft. when operates at 1200 rpm at a power input of…

A: The solution can be achieved as follows.

Q: A motor operating on a 120 volt DC supply drivesw a direct current generator, which is delivering 1…

A: A direct current generator is an electrical machine that converts mechanical energy into…

Q: 2. Why do you keep the alternator speed constant in this experiment? 3. What are the main effects of…

A: In this solution we discuss about speed of an alternator, effects of losses, stray load losses.

Q: The following information is given in connection with a long-shunt compound generator: E = 220…

A: In the question, a long-shunt compound generator: E = 220 volts; output = 20 kW; stray-power loss…

Q: Table 1: Motor Test Data Field Current [A] 175 225 OC Line Voltage [V] 12,000 13,800 SC Current [A]…

A: Motor It is an electrical machine that convert electrical energy into mechanichal energy. here…

Q: Two identical 2,000 kW alternator operates in parallel. The governor of the first machine is such…

A: It is given that: Rating of alternator=P=2000 KWFrequency drop of first machine 1=∆f1=50 Hz-48 Hz=2…

Q: B- Find power delivered to the de motor has operating voltage 120V and consume

A: Electrical machines can be either generator, transformer or motors. They can be either Ac machines…

Q: Write the solution neatly. A 230 V d.c. shunt motor, having an armature resistance of 0.05 ohm and a…

A: According to the question we have to find the value of efficiency.

Q: The full-load stator losses and the rotational looses of a 40 kW induction motor amount to 1.5 kW…

Q: Please show a step-by-step solution. The input power to a 6-pole, 3-phase, 50 Hz induction motor is…

A: In this question, We need to determine efficiency of the motor? Efficiency = output power/input…

Q: 220V dc shunt motor takes 4A at no load and runs at 700 rpm. Ra = 0.60 ohm and Rsh = 110 ohms. What…

Q: A 100 kW belt driven shunt generator running at 300 rpm on 220V bus-bar, continues to run as a motok…

A: This question belongs to electrical machine . It is based on the concept of braking in machine .…

Q: A 480-V, three-phase motor draws 22.553 A at a power factor of 0.8 to develop a useful load torque…

Q: A bipolar AC generator is running at 3,600 RPM . What will be the frequency of the voltage wave…

A: solve prob..

Q: A 4 HP motor with a power factor of 0.8(-) operating at 100 Vrms.Indicate the angle of the current…

A: In this question we need to find the magnitude and phase angle of current drawn by motor

Q: An industrial co speed fan runs at high speed from 8am to 4pm from Monday to Friday. From 4pm to 8am…

A: It is given the unit price of electricity is given as 20 cent/kWh. Finally it is asked to find out…

Q: Determine the current in amperes drawn from a three-phase 440-V line by a three-phase15-hp motor…

A: Efficiency = output power/input power. Input power =sqrt(3)×line voltage ×line current ×power…

Q: Calculate the current taken by a 1.7 kW 230 volt single-phase motor working at full load with a p.f.…

A: We have a 1.7 KW single-phase motor at full load with, Pf = 0.8 Efficiency = 75 % We have been…

Q: 83. The power input to a 6 pole, 3 phase, 50 Hz induction motor is 42 KW; the speed is 970 rpm. The…

Q: Iron loss of DC motor is constant with the load. Select one: O True O False

A: Iron loss depends on voltage. As voltage is constant iron loss is constant.

Q: A three- phase star- connected synchronous motor draws 70 A at 0.8 pf leading when connected from a…

A: In stray load loss the shaft and moving of bearing are combine and friction losses to generate due…

Q: A 5 kW, 230 V, d.c shunt motor is operating at rated condition with 82% efficiency. Power drawn form…

Q: The field windings of a series motor has a resistance of 120 ohms at 15 ˚C. After running for two…

Q: Problem 1 1.1 In a DC shunt motor as the load is reduced. (a) The speed will increase abruptly. (b)…

A: 1 )In case of DC shunt motor field is parallel to the armature therefore flux is remain constant .…

Q: A motor has an output of 6 kW, an efficiencyof 75% and a power factor of 0.64 lagging when operated…

A: Hello. Since you have posted question with multiple subparts and not specified which subpart to…

Q: A 25 MVA turbo-alternator is working on full load at a power factor of 0-8 and efficiency of 97%.…

Q: Back EMF of DC motor opposes the supply voltage according to Fleming's law. Select one: O True False

A: This statement is true or false? Induced back EMF voltage in the DC motor is oppose the supply…

Q: The load of an industrial concern is 400 kVA at a power factor of 75 percent, lagging. An additional…

A: A)The initial level of load is,PL=400KVA,75%lagging=(300-264.58j)kVAHere the additional load which…

Q: When a small a-c motor is operating at rated load from a 115-volt 60-cycle source, it takes 287…

Concept explainers

Three Phase Induction Motor

The induction motor is an electric motor that runs on AC (alternating current) and it is of two type single phase motor that work on single-phase power supply and three-phase motor that work on three-phase power supply.

Question

100%

A 230V shunt motor delivers 37hp at the shaft at 1120rpm. If the motor has an efficiency of 89% at this load, determine the total input power.

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

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 squirrel-cage induction motor is operating at 1175 RPM and producing a torque of 22 Ib-ft. What is the horsepower output of the motor?
A 240V shunt motor delivers 30hp at the shaft at 1800rpm. If the motor has an efficiency of 85% at this load, determine the total input power and the line current
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.
A 5 kW, 230 V, d.c shunt motor is operating at rated condition with 82% efficiency. Power drawn form the supply and the total loss are respectively
In a 3-phase induction motor, express the mechanical power developed, in terms of air gap power Pg.
An ideal 120V 2HP motor draws an apparent power of 1800w from the source. Determine it's power factor. Thank you.
A 400V, 3-phase Induction motor has output of 32HP and operates at power factor of 0.75 lagging with an efficiency of 87%. Calculate the reading on each of the two wattmeter connected to measure the input. Find the following below: The value of P1 is = The value of P2 is =
SHOW THE CIRCUIT AND COMPLETE SOLUTION A 75-KW, 440V DC generator has 90% efficiency during full- load and the maximum efficiency of the generator is recorded at 95.64%. Determine the constant loss and the variable loss.
A three-phase, 440-V, 60-Hz, wye-connected induction motor takes a stator current of 50 A at 0.8 powerfactor while running at its rated speed of 855 rpm. The stator loss is 2500 W, and the rotational lossesare 3200 W. Calculate the efficiency of the motor.
A 25-kW shunt generator is delivering full output to 400-V bus-bars and is driven at 950 r.p.m. by beltdrive. The belt breaks suddenly but the machine continues to run as a motor taking 25 kW from the busbars.
A 220-volt 15 HP motor has an output of 12HP at an efficiency of 83%. A P9.00 per KWHR, determine the monthly cost of energy if the motor operates continuously at a uniform load 18hrs per day for 25 days in a month.
A 400V, 50Hz 30hp three-phase induction motor is drawing current at power factor 0.8 lagging. The stator and rotor copper losses are 1.5kW and 900W respectively. The friction and windage losses are 1050W and the core losses are 1200W . Find the air-gap power of the motor.