Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Advantages and disadvantages of three phase system over single phase system
1. In a single phase circuit the power distributed is pulsating. In three-phase system the total power delivered is constant if the loads are balanced by the power of any one phase or circuit might be negative. So three-phase system is highly desirable mainly for power loads.
2. The rating of a given machine enhances with the increase in number of phases. For example the output of a three-phase motor is 1.5 times the output of a single-phase motor of the similar size.
3. Single-phase induction motors, have no initial torque and so its is essential to give these motors with an auxiliary means of starting, but in case of three phase motors except synchronous motors there is no requirement of providing an auxiliary means for starting.
4. Power factor of single- phase motor is lower than that of three phase motor of the similar rating (output and speed). The efficiency of a three- phase motor is also higher than that of a single- phase motor.
why gravitational energy for a system of particles is found by first finding the gravitational energy between individual particles and then adding it up? Ans) It is a scalar qua
In computing the electric field at a point call it point P in the first quadrant of a Cartesian coordinate system because of a continuous charge distribution from 0 to L on the x-a
why we use compensater??
When a body or a moving particle repeats its motion along an exact path after regular parts of time, its rotation is said to be Periodic Motion and interval of time is known as per
composition of two SHM at right angle to each other and having time period in the ratio of 1: 2
#question.introduction .
Poisson spot (S.D. Poisson) Originally Poisson predicted the existence of such spot, and utilized the prediction to revel how the wave theory of light have to be in error to g
A 3Kg bar of aluminum has to be heated from 25 degrees Celsius to 75 degrees Celsius. how many calories are needed to achieve this temperature increase?
Le Chatelier's principle (H. Le Chatelier; 1888) If a system is in equilibrium, then any change imposed onto the system tends to shift the equilibrium to decrease the effect of
baryon decay The idea, predicted through several grand-unified theories, that class of subatomic elements called baryons (of which the nucleons protons & neutrons are members
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd