1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
MrRa [10]
3 years ago
13

Why the power factor is Low in no load test in induction motor ?​

Engineering
1 answer:
marshall27 [118]3 years ago
5 0

Answer:

At no load, the Cosine of the phase angle between the stator current(I1) and the stator applied voltage(V1) is the power factor of an induction motor. The reason of the low power factor is high rotor reactance at lower loading. The rotor reactance value gets decreased with increased loading on induction motor..','.

You might be interested in
For a body moving with simple harmonic motion state the equations to represent: i) Velocity ii) Acceleration iii) Periodic Time
max2010maxim [7]

Answer with Explanation:

The general equation of simple harmonic motion is

x(t)=Asin(\omega t+\phi)

where,

A is the amplitude of motion

\omega is the angular frequency of the motion

\phi is known as initial phase

part 1)

Now by definition of velocity we have

v=\frac{dx}{dt}\\\\\therefore v(t)=\frac{d}{dt}(Asin(\omega t+\phi )\\\\v(t)=A\omega cos(\omega t+\phi )

part 2)

Now by definition of acceleration we have

a=\frac{dv}{dt}\\\\\therefore a(t)=\frac{d}{dt}(A\omega cos(\omega t+\phi )\\\\a(t)=-A\omega ^{2}sin(\omega t+\phi )

part 3)

The angular frequency is related to Time period 'T' asT =\frac{2\pi }{\omega }

where

\omega is the angular frequency of the motion of the particle.

Part 4) The acceleration and velocities are plotted below

since the maximum value that the sin(x) and cos(x) can achieve in their respective domains equals 1 thus the maximum value of acceleration and velocity is A\omega ^{2} and A\omega respectively.

4 0
3 years ago
Sam decides to remove his oversized hooded jacket before he works near the pto driveline is it safe or unsafe
Salsk061 [2.6K]
Its safe because it isn't something with electricity
4 0
3 years ago
generally compound curves are not filtered recommended for A. Road B. water way C. underground road D. rail way​
vfiekz [6]

Answer:

C. underground road

Explanation:

Generally compound curves are not filtered and recommended for use in an underground road. However, they are best used in the road, water way, and rail way.

3 0
4 years ago
Witch truck company is better.<br><br> Ram <br> Ford <br> Toyoda<br> GMC
arlik [135]
Ram is the better truck company
7 0
3 years ago
Read 2 more answers
Which goal incorporates most of the criteria required for a SMART goal?
STatiana [176]

Answer:

e

Explanation:

8 0
3 years ago
Other questions:
  • If link AB of the four-bar linkage has a constant counterclockwise angular velocity of 58 rad/s during an interval which include
    11·1 answer
  • Explain the four criteria for proving the correctness of a logical pretest loop construct of the form "while B do S end". And pr
    12·1 answer
  • The statement that is NOT true about the difference between laminar and turbulent boundary layers is:1.the Reynolds number for a
    8·1 answer
  • It has been estimated that 139.2x10^6 m^2 of rainforest is destroyed each day. assume that the initial area of tropical rainfore
    12·1 answer
  • A wastewater plant discharges a treated effluent (w) with a flow rate of 1.1 m^3/s, 50 mg/L BOD5 and 2 mg/L DO into a river (s)
    14·1 answer
  • Compare the temperature dependence of Nabarro-Herring and Coble creep. Which is more temperature-sensitive
    15·1 answer
  • The electrical panel schedules are located on EWR Plan number ___.
    13·1 answer
  • The current flowing into the collector lead of a certain bipolar junction transistor (BJT) is measured to be 1 nA. If no charge
    14·1 answer
  • 3
    6·1 answer
  • All people<br><br><br>id 5603642259 pd 123456<br>on z o o m​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!