Discuss factors that must be considered in setting ratings

Assignment Help Electrical Engineering
Reference no: EM13263577

We have a transformer designed to operate at 60Hz. The voltage ratings are 4800v rms and 240v rms for the primary and secondary windings, respectively. The transformer is rated to 10KVA. Now we want to use this transformer at 120Hz. Discuss the factors that must be considered in setting ratings appropriate for operation at the new frequency.

Reference no: EM13263577

Questions Cloud

Compute the speed-output torque and power and stator current : The total friction and core losses may be assumed to be constant at 403 Watts, independent of load. For a slip of 2% , compute the speed, output torque, and power and stator current, power factor and efficiency when the motor is operated at rated ..
What is the value of the timing option today : This is a risky project, so a WACC of 16.0% is to be used. If NPC chooses to wait a year before proceeding, what is the value of the timing option today?
Estimate the frequency of the light : Monochromatic light falls on two very narrow slits 0.045 mm apart. Successive fringes on a screen 5.00 m away are 6.2 cm apart near the center of the pattern. estimate the frequency of the light
What is the value of the option to delay : The project's cost and expected annual cash flows would be the same whether the project is delayed or not. The project's WACC is 11.0%. What is the value (in thousands) of the option to delay the project?
Discuss factors that must be considered in setting ratings : The voltage ratings are 4800v rms and 240v rms for the primary and secondary windings, respectively. The transformer is rated to 10KVA. Now we want to use this transformer at 120Hz. Discuss the factors that must be considered in setting ratings ap..
Find the voltages vab-vbc and vca at the load : the rms voltage of a balanced 3 phase Y connected source is 110 volts at 60Hz. it is connected to a balanced Y Load by 3 distribution lines with an impedence on each line z=1+j2. the load impedence is z=19=j28 per phase.
Calculate the focal length of the eyepiece : A microscope has a 15.0? eyepiece and a 60.0? objective lens 20.0 cm apart. Calculate the focal length of the eyepiece
Calculate the net present value of the loan : The furniture store manager rarely finances purchases, but will for Terry "as a special favor." The rate will be 10% per year, and because the desk costs $600, the interest will come to $60 for a one-year loan. Thus, the total price is $660, and T..
Formulate a professional thank you letter : Use the samples in Chapter 8 to help you formulate a professional thank you letter. Create your letter in a Word document using the business letter format (the same format you used for your cover letter).

Reviews

Write a Review

Electrical Engineering Questions & Answers

  What interest rate are making on the retirement money

An insurance company has made you the following retirement offer. If you pay them $100,000 now, you will receive payments of $8000 a year for 10 years. After this they will pay you $9000 a year in perpetuity (for ever).

  Find the code word transmitted for the data word

a) Find the code word transmitted when the data word is 101100011011. b) Draw the LFSR circuit to generate the CRC. Generate the CRC by applying the data pattern to the LFSR and verify the answer in part a.

  Describe the rise time-the overshoot and the settling time

Discuss the sequence of actions that occur in the operation of the control system for a traffic light that includes sensors in the roadbed. Indicate which actions are time-driven and which actions are event-driven.

  Calculate the core parameters rc and xm

The open circuit test on a single-phase 15kVA, 7500/480 V, 60 Hz distribution transformer yielded the following: V = 7500V; I = 0.2006A; P = 180W Calculate the core parameters RC and XM and the magnetizing current IM.

  How much current-in ampere will flow through the load

A student from electromechanical systems class planned to construct a transformer that will cause an actual load resistance of 98.5 ohms to appear as 172.8 ohms to an AC voltage source of 176 V rms.

  Find lumped element values of open-circuited line designed

An open-circuited 50 Ohm microstrip transmission line is used in a microwave amplifier circuit to provide a capacitance of 3.2 pF at 2.3 GHz. (a) Find the appropriate electrical length of the line and (b) Find the lumped element values of the open..

  Explain what rf bandwidth must the radio link provide

What RF bandwidth must the radio link provide if the modulation is binary phase shift keying (BPSK)?

  Develop a looping program in mips

How would you develop a looping program in MIPS that will take a series of decimal numbers and arrange them in ascending order from smallest to largest. The sequence of nine numbers are: 5, 3, 8, 9, 2, 4, 1, 7, 6, 3, 8

  How many photos fit into a cube whose sides are 1mm

The 16giga-byte (GB=2^30 bytes) flash memory chip for an MP3player is 11mm by 15mm by 1mm. This memory chip holds 20,000photos. a) How many photos fit into a cube whose sides are 1mm

  What will be the speed if the load torque is increased by 44

A 220V dc series motor runs at 700 rev/min when operating at its full-load current of 20A. The motor resistance is 0.5W and the magnetic circuit may be assumed unsaturated. What will be the speed if: (i) the load torque is increased by 44

  What is percent quantization error if 1volt max signal input

A unipolar 16 bit ADC measures 0-10 volts full scale. a) What is the minimum resolvable voltage b) What is the percent quantization error c) What is the percent quantization error if a 1 volt max signal is input

  Find the transformation ratio of a transformer

Find the transformation ratio of a transformer having 350 turns on the secondary winding and 7000 turns on the primary. What voltage must be applied to the primary of the transformer to develop an open-circuit secondary voltage

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