Determine a static capacitor, Physics

Assignment Help:

A 250V, 50Hz single-phase supply feeds the following loads

(i) incandescent lamps taking a current of 10A at unity power factor,

(ii) fluorescent lamps taking 8A at a power factor of 0.7 lagging,

(iii) a 3kVA motor operating at full load and at a power factor of 0.8 lagging and

(iv) a static capacitor

Determine, for the lamps and motor,

(a) the total current,

(b) the overall power factor and

(c) the total power.

(d) Find the value of the static capacitor to improve the overall power factor to 0.975 lagging.

 


Related Discussions:- Determine a static capacitor

What is the means in which light waves travel, What is the means in which l...

What is the means in which light waves travel? Ans: Light is the only type of wave that doesn't require a medium. Confirmation that light will travel through vacuum is the

Explain a simple theodolite or astrolabe, A simple theodolite or astrolabe ...

A simple theodolite or astrolabe A simple theodolite or astrolabe is formed by fixing a drinking straw to the base line of a protractor with sealing wax or glue. A plumb line h

Describe nor and nand gates, Describe NOR and NAND gates. Provide their tr...

Describe NOR and NAND gates. Provide their truth tables. Discuss the nature of a p-n junction. How does a potential barrier develop at the junction.

Determine the power input of ac motor, A 415V 3-phase a.c. motor has a powe...

A 415V 3-phase a.c. motor has a power output of 12.75kW and operates at a power factor of 0.77 lagging and with an ef?ciency of 85%. If the motor is delta-connected, verify

What is the weight of the sled and rider, A sled and its rider are perched ...

A sled and its rider are perched at the top o a hill that is 35 m tall. If the gravitational potential energy is 3.0 x 10 4 J. What is the weight of the sled and rider?

Kinematics, for small values of theta sine theta is equal to tan theta . ho...

for small values of theta sine theta is equal to tan theta . how?

Velocity distribution in a rectangular channel, An approximate equation for...

An approximate equation for the velocity distribution in a rectangular channel with turbulent flow is where umax is the velocity at the surface, y is the distance from the

High current measurement , High current measurement : In common with si...

High current measurement : In common with simple analogue multimeters, the meter used a shunt which is directly connected to a separate 10A terminal. The diagram shows the con

Determine the length of the hypotenuse, A right triangular prism has volume...

A right triangular prism has volume equal to 288 cm^3. The height of the prism is 3 cm. One of the bases of the triangular face (not the hypotenuse) is equal to 12 cm, determine th

Dc ammeter, Why dc ammeter cant read ac current

Why dc ammeter cant read ac current

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

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!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd