Find the maximum kva rating as an auto- transformer, Electrical Engineering

Assignment Help:

Q. A 5-kVA, 480:120-V, two-winding, 60-Hz, single-phase transformer has an efficiency of 95% while delivering rated load at rated voltage and 0.8 power factor lagging. This transformer is to be connected as an autotransformer to step down a 600-V source to 480 V.

(a) Draw a schematic connection diagram as an autotransformer.

(b) Find the maximum kVA rating as an auto- transformer.

(c) Compute the efficiency as an autotrans- former delivering its rated kVA at 480 V and 0.8 power factor lagging.


Related Discussions:- Find the maximum kva rating as an auto- transformer

Determine the regulation of three-phase, A three-phase, six-pole, wye-conne...

A three-phase, six-pole, wye-connected synchronous generator is rated at 550 V and has a synchronous reactance Xs = 2 . When the generator supplies 50 kVA at rated voltage and a p

Explain the 8259 microprocessor, Explain the 8259 microprocessor. 82...

Explain the 8259 microprocessor. 8259: The 8259A adds 8 vectored priority encoded interrupts to the microprocessor. This can be expanded to 64 interrupt requests with us

Show the procedure of hex to decimal conversion, Q. Show the procedure of H...

Q. Show the procedure of Hex to Decimal Conversion? To convert from the Hex to the Decimal, multiply the value in each position by its hex weight and add each value. Using the

Calculate the membrane areas, In a 3-stage continuous ultrafiltration proce...

In a 3-stage continuous ultrafiltration process, a solution is concentrated from 5 gm/Liter to 50 gm/Liter of protein. The final retentate is to have a flow rate of 1000 L/hr. The

Mainframes - introduction to microprocessors , Mainframes Computers lar...

Mainframes Computers larger than minicomputer more power  operating at very high speed  called  mainframes.  They  can processes 64  bit data.  Such computers are used  in defe

Explain two types of materials that are formed after doping, Explain the tw...

Explain the two types of materials that are formed after doping. Depending on the impurity added, extrinsic semiconductors can be then subdivided in two types of class: N-ty

Explain the different types of multivibrators, Explain the different types ...

Explain the different types of multivibrators ? Multivibrator is basically  a two-stage amplifier with output of one supplied back to the input of the other . Multivibr

Define some illustrations of common control characters, Define some Illustr...

Define some Illustrations of Common Control Characters? Illustrations of common control characters include: Carriage return (ASCII code 0Dh), which positions the cu

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