Find the individual load currents

Assignment Help Electrical Engineering
Reference no: EM131266035

A 20 kVA, 4400/220 V transformer with an equivalent impedance of 0.01 Ω is to operate in parallel with a 15 kVA, 4400/220 V transformer with an equivalent impedance of 0.015 Ω. The two transformers are connected in parallel and made to carry a load of 25 kVA. Assume both the impedances to have the same angle.

(a) Find the individual load currents.

(b) What per cent of the rated capacity is used in each transformer?

Reference no: EM131266035

Questions Cloud

Number of dollars per japanese yen : 1. Let the exchange rate be defined as the number of dollars per Japanese yen. Assume that there is a relatively lower rate of inflation in the U.S. relative to that of Japan.
Calculate the kva loading and the power factor : The resistance and reactance of the first transformer are 3% and 6.5% respectively, and of the second transformer 1.5% and 8% respectively. Calculate the kVA loading and the power factor at which each transformer operates.
What is the largest value of the unity power factor load : What is the largest value of the unity power factor load that can be delivered by the parallel combination at the rated voltage?
Describe the major schools of management thought : Assignment Brief - Students are required to do an analysis of Historical Foundation of Management and prepare an academic report including the following. Describe the Major Schools of Management Thought. Critically analyze the Classical approaches ..
Find the individual load currents : A 20 kVA, 4400/220 V transformer with an equivalent impedance of 0.01 Ω is to operate in parallel with a 15 kVA, 4400/220 V transformer with an equivalent impedance of 0.015 Ω. The two transformers are connected in parallel and made to carry a loa..
Determine the kva rating of the autotransformer : With a load of 20 kVA, 0.8 pf lagging connected to 200 V terminals, determine the currents in the load and the two transformer windings.
Prepare a perceptual map for your chosen product : Prepare a perceptual map for your chosen product/brand and using a minimum of seven competitors, rank each product/brand on the two variables based on how they are positioned in the consumers' minds.
Activities described on the web site : Do the activities described on the Web site seem consistent with the company's products? - Why or why not?
Find the efficiency of the autotransformer : calculate the power output, power transformed and power conducted. If the efficiency of the twowinding transformer at 0.7 pf is 97%, find the efficiency of the autotransformer.

Reviews

Write a Review

Electrical Engineering Questions & Answers

  What must be value of capacitor that needs to be connected

Assume that a load Z absorbs power of 150 W at a lagging power factor of 0.8, and the voltage across the load Z is 220 Vms, 50 Hz. What must be the value of capacitor that needs to be connected in parallel with the load Z

  Calculate width of space charge region for applied voltages

Find the built-in potential for a p-n Si junction at room temperature if the bulk resistivity - calculate the width of the space charge region for the applied voltages

  Find armature resistance of excited dc motor

A separately excited DC motor runs at1500 rpm under no load with 200 V applied to the armature.The field voltage is maintain at its rated value. The speed of the motor, when it delivers a torque of 5 Nm ,is 1400 rpm.

  Design a circuit with a decoder and external gates

A combinational circuit is defined by the following booleanfunctions. Design a circuit with a decoder and external gates. F1(x,y,z) = x'y'z' + xz F2(x,y,z) = xy'z'+x'y F3(x,y,z) = x'y'z+xz

  Write general form of natural response for capacitor voltage

Consider a source-free parallel RLC circuit having alpha =10^8 s^-1, omega-sub-zero = 10^3 rad/s, and omega-sub-zero * L = 5 ohm. a) Show that the stated units of omega-sub-zero * L are correct. b) Compute s_1and s_2.

  Design a moore machine that has one input x and one output

Design a Moore machine that has one input X and one output Z. Provide a complete design using D Flip flops. In this design, the output should be 1 any time the sequence 01101 occurs. Overlapping sequences are allowed.

  Compute the total signal power from the specturm

A communication system must transmit the following real valued signal: v(t) = 4cos(2pi*10MHz*t) + 2cos(2pi*20MHz*t)+cos(2pi*30MHz*t)V For this signal, sketch the positive-frequency power specturm P(f>0)

  Determine for copper at 20 degree c the resistance

The resistivity of copper is 1.724 micro-ohm-cm at200C. Determine for copper at 200C the resistance (a) of a cylindrical conductor 1 meter long and having a diameter of 1mm; (b) a rod 2 meters long and having a diameter of 2mm.

  Explain electronic technology in relationship to the use

electronic technology in relationship to the use of personnel and access control, surveillance, and identification of authorized personnel.

  Explain what will the current be when the speed is reduced

A separately excited DC generator,when running at 1200 RPM, supplies 200A at 125V to a circuit ofconstant resistance. What will the current be when the speed is reduced to 1000 RPM if the field current remains unchanged

  Determine minimun number of 20-a circuits required to supply

Determine the minimun number of 20 Acircuits required to supply the general lighting load in a residence of 1750 sq ft. in terms of good design practice, what is the max of receptacles allowed on a dedicated small appliance branch circuit

  How many months will it take for facebook to grow its user

How many months will it take for Facebook to grow its user base to two billion users?

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