Calculate the primary and secondary impedances in ohms

Assignment Help Electrical Engineering
Reference no: EM131266050

A 22/127 kV, 125 MVA transformer has primary and secondary impedances of 0.015 + j 0.06 pu each. Its magnetizing reactance is j 120 pu. The pu values are expressed on the base of the transformer rating. Calculate the primary and secondary impedances in ohms and also the magnetizing reactance in ohms on the LV side.

Reference no: EM131266050

Questions Cloud

How do beliefs and attitudes influence consumer behavior : How do beliefs and attitudes influence consumer behavior? How can negative attitudes toward a product be changed?
Compute the voltage at the sending-end of the feeder : A single-phase load is fed through a 66-kV feeder whose impedance is 120 + j 400 Ω and a 66/6.6 kV transformer whose equivalent impedance (referred to LV) is 0.4 + j 1.5 Ω. The load is 250 kW at 0.8 leading power factor and 6 kV.
Determine the input power and power factor : When it is operating at rated load, the voltage drops in the total leakage reactance and the total resistance are, respectively, 2 and 1 per cent of the rated voltage. Determine the input power and power factor when the transformer delivers 10 kW ..
What would be the present value of her deferred annuity : Mary's replacement is unexpectedly hired away by another school, and Mary is asked to stay in her position for another three years. The board assumes the bonus should stay the same, but Mary knows the present value of her bonus will change. What w..
Calculate the primary and secondary impedances in ohms : Calculate the primary and secondary impedances in ohms and also the magnetizing reactance in ohms on the LV side.
Compute all the parameters of the equivalent circuit : Compute all the parameters of the equivalent circuit referred to the HV and LV sides of the transformer. Also calculate % voltage regulation and efficiency at full load and 0.8 pf lagging.
Find the equivalent winding resistance : Find the equivalent winding resistance, reactance and impedance referred to the HV and LV sides. Convert these to pu values.
Determine the passion for the target market need related : Select one (1) product or service that you would like to write a Blog about. Next, specify the Blog's main target market information (i.e., demographic information, psychographic information, and the need that the Blog will address for the target ..
Calculate the pu circuit parameters of the transformer : Calculate the pu circuit parameters of the transformer. Determine its efficiency and voltage regulation at full load 0.8 pf lagging. Calculate also the maximum efficiency and the load (0.8 pf ) at which it will occur.

Reviews

Write a Review

Electrical Engineering Questions & Answers

  What is the probability of an electron state being occupied

(A)Under equilibrium conditions and T= 0 Kelvin ,what isthe probability of an electron state being occupied if it is located at the Fermi level (B) If Ef is positioned at Ec,determine(numerical answer required) the probability of findingelectrons in..

  What should be the value of the firing angle

A 220 V, 1500 rpm, 11.6 A (armature current) separately excited motor is controlled by a single phase, full wave SCR converter. The armature resistance of the motor is 2 ohm. The ac source voltage is 230 V (rms) 60 Hz.

  Discuss the thin layer chromatography1

Discuss the following: - a)Thin-layer chromatography & - b)High Performance Liquid Chromatography (HPLC)- Principle of their methodology.

  How much energy does the battery deliver in 80h interval

The manufacturer of a 9V dry-cell flash light battery says that the battery will deliver 20mA for 80 continuous hours. During that time the voltage will drop from 9V to 6V.Assuming the drop in voltage is linear with time.

  Briefly explain which point on the phillips curve graph

Briefly explain which point on the Phillips curve graph best represents the same economic situation as point B on the aggregate demand and aggregate supply graph.

  Describe the center-tapped secondary needed to obtain

A power utility pole has a transformer with 2400 turns in theprimary and 4.5kV coming from the power line. Describe the center-tapped secondary needed to obtain 240V(120V/120V) for a commercial customer.

  Determine equivalent inductance of the system at terminals

The accompanying schematics each show two inductors with coupling but with different dot markings. For each of the two systems, determine the equivalent inductance of the system at terminals 1-1' by combining inductances.

  Determine how many conduction electrons would be present

In a 50 mm diameter x 0.5 mm thick wafer of pure germanium at room temperature, (a) how many conduction electrons would be present, and (b) how many electron holes would be present.

  What will be the specific internal energy of the substance

A system initially consists of 3 lbm of a substance having specific internal energy u of 20 Btu/lbm, and 6 lbm of the same substance having an internal energy of 30 Btu/lbm. 150 Btu of energy is transferred as heat to this system

  Find true and approximate relative errors as terms are added

e^-x=(1/e^x)=1/(1+x+(x^2/2)+(x^3/3!)+...) and compare with the true value of 6.737947*10^-3. Use 20 terms to evaluate each series and compute true and approximate relative errors as terms are added.

  Determine r1 and rc for the network

For the emitter bias network of Fig, determine:- IB, IC, VCE.- Given that ICQ = 2 mA and VCEQ = 10 V, determine R1 and RC for the network.

  Determine the active power in the circuit

of resistance 5 and inductive reactance 12 is connected across a supply voltage of 526 30° volts. Determine the active power in the circuit.

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