Determine the current taken by the capacitor, Physics

Assignment Help:

A motor has an output of 4.8kW, an efficiency of 80% and a power factor of 0.625 lagging when operated from a 240V, 50Hz supply.

It is needed to improve the power factor to 0.95 lagging by connecting a capacitor in parallel with the motor.

Determine

(a) The current taken by the motor,

(b) The supply current after power factor correction,

(d) The capacitance of the capacitor, and

(e) The kvar rating of the capacitor.

Related Discussions:- Determine the current taken by the capacitor

What is the cause of brownian motion, What is the cause of Brownian motion?...

What is the cause of Brownian motion? Molecules in a gas move constantly, freely, randomly, in all directions and at high speeds. They are able to do so because the intermolecu

Projectile motion, in some case we take y=-g but in some case we take y=g.....

in some case we take y=-g but in some case we take y=g... why???

Angular variables, prove - w2=w0+2alpha(thita-thita0)

prove - w2=w0+2alpha(thita-thita0)

Measure the distance from the sun for new planet, Assume a new planet was d...

Assume a new planet was discovered to orbit the Sun with a period 5 times that of Pluto. Using the data, measure the average distance from the Sun for this new planet.

Diffraction of light, The phenomenon of diffraction was first discovered by...

The phenomenon of diffraction was first discovered by Girmaldi. Its experimental study was completed by Newton's and young. The theoretical explanation was first provided by Fresne

Energy, Energy: The term energy may be defined as the capacity for doin...

Energy: The term energy may be defined as the capacity for doing work. There are two forms of energy: potential energy and kinetic energy. POTENTIAL ENERGY Potential e

Properties of fluids, deduce an expression for pressure at any point inside...

deduce an expression for pressure at any point inside a liquid.

The charge and discharge characteristics of lead battery, The charge and di...

The charge and discharge characteristics of lead battery: During discharge the plates are converted into lead sulphate, the water content of the electrolyte increases, the inte

What do you mean by dopplers shift, What do you mean by Doppler's shift? De...

What do you mean by Doppler's shift? Derive a mathematical expression for the apparent frequency heard by a moving listener when the source of sound is at rest. What is the effe

What do you mean by normal adjustment of a telescope, What do you mean by n...

What do you mean by normal adjustment of a telescope? In What way it is better? What is the need of erecting lens in a terrestrial telescope? What do you mean by its magnific

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages