Find equivalent impedance as referred to the secondary side

Assignment Help Electrical Engineering
Reference no: EM13274574

A three-phase Y- connected transformer bank (single phase) consists of three identical step-up transformers rated at 100MVA, 13.8kV:66.4kV. Each transformer has a series impedance of .0045 + j0.19-ohm referred to its 13.8kV winding. Calculate the following
a. the rated line voltage at the primary side
b. the rated line voltage at the secondary side.
c. the VA ratings on both sides
d. the equivalent impedance as referred to the secondary side

Reference no: EM13274574

Questions Cloud

Find the ratio of the flow speeds : A Venturi meter measures fluid speed in a pipe. A constriction (of cross-sectional area A2) is put in a pipe of normal cross-sectional area A1 (A1 = 2A2). Find the ratio of the flow speeds
Find an approximate expression for the response y : Consider the causal LTI system with system function H(s)=Y(s)/X(s)=1/(s+2)^2 If the input is x(t)=sin(2t) for t>0, find an approximate expression for the response y(t) that is valid for large t.
Find the resistance in the charging circuit : A camera's flash uses the energy stored in a 270µF capacitor charged to 170V. The current in the charging circuit is not to exceed 23mA. What's the resistance in the charging circuit
Find the active and the reactive power of the load : A three-phase Y- connected load is rated at 240 volts with power factor .95 (lagging), if the total apparent power is 240 KVA, compute: a. the phase currents (in polar form). There are 3 values. b. the active and the reactive power of the load at it..
Find equivalent impedance as referred to the secondary side : A three-phase Y- connected transformer bank (single phase) consists of three identical step-up transformers rated at 100MVA, 13.8kV:66.4kV. Each transformer has a series impedance of .0045 + j0.19-ohm referred to its 13.8kV winding.
Create a code : Create a base class named Car. The Car class is to have the properties AdjustFactor (double) and InitSpeed (double). There is one overridable method named DeltaSpeed that returns a double; this method computes AdjustFactor * InitSpeed and returns thi..
Contingent and flexible workforce : Determine how the company you researched could best leverage a contingent and / or flexible workforce. Provide specific examples to support your response.
Duration predecessors resources-cost : Resource Allocation and Leveling The following data were obtained from a project to expand a school. Activity Duration Predecessors Resources/Cost A 2 weeks -- Two excavators/$800 day each B 3 weeks --
Management to justify your time creating the RACI : There are many stakeholders and participants in projects, and they often get confused as to who is doing what. You decide to use an RACI to help with this situation

Reviews

Write a Review

Electrical Engineering Questions & Answers

  What is the limit on leakage resistance for the capacitor

The dielectric materials used in real capacitors are not perfect insulators. A resistance called a leakage resistance in parallel with the capacitance can model this imperfection. A 150-F capacitor is initially charged to 100 V.

  Find the maximum and minimum inductor currents

A buck converter has the following parameters: Vs = 24 V, D = 0.65, L = 25 uH, C = 15 uF, and R=10 ohm.The switching frequency is 100 kHz. Determine (a) the output voltage, (b) the maximum and minimum inductor currents

  What is the total number of photons that will be emitted

If there are 500 atoms in the sample and assuming that from any state all possible downward transitions are equally probably, what is the total number of photons that will be emitted when all atoms return to the ground state

  Determine the value of the power gain in decibels

An amplifier with a voltage gain of +40 dB, an input resistance of 10 k ohms and an output resistance of 1 kohm is used to drive a 1 k ohms load. what is the value of Avo. Find the value of the power gain in decibels.

  Find the locations of the second order poles at overshoot

For Each Pair of Second-order systems specifications that follow, find the locations of the second order poles a) Overshoot %= 12% , Ts= 0.6 seconds b) Overshoot %= 10%, Tp= 5 seconds c) Ts= 7 seconds, Tp= 3 seconds

  Find stator current and power factor of synchronous machine

A 3-phase, 5 MVA, 11 kV, 60 Hz synchronous machine has a synchronous reactance of 10 Ohms per phase and has negligible stator resistance. The machine is connected to the 11 kV, 60 Hz bus and is operated as a synchronous condenser

  What is the significance of the two nyquist criteria

Where (in the sequence of subsystems within a communication system) does the line encoder used? Draw a block diagram. Write a sentence or two on what is in the other boxes. What are the two broad parameters associated with an efficient line encoder..

  How much weight can the crane continue to support power

A stepper motor is being used to move a crane. The motor has the following properties: Holding torque = 2 m.kg, dynamic torque = 1.5 m.kg, and detent torque = 0.5 m.kg. Through a 1:5 gear, the motor (motor connected to the smaller gear)

  Calculate hall voltage across the wire

An Aluminum wire with a square cross section 2mm on a side is carrying a current of 1.5amps. Aluminum has a resistivity of 2.69*10^-6 ohm-cm and an atomic volume of 10cc/mol. Assuming aluminum has three free electrons per atom

  Determine what is the voltage displayed on the dmm

1.The signal is 10 sin (pi 500t +30deg). The amplitude of this signal is 2.The signal is 2 sin(pi 1500 t + 60deg). The frequency of the signal is 3.The signal is 5 sin(4 pi 800t - 80 deg). The phase of this signal is

  Discuss what is meant by nonlinear filtering

Discuss the between continuous-time and discrete signals and their analysis imposed by the way discrete-time signals and systems are generated. Discuss what is meant by "nonlinear filtering".

  What must be the distance be between filaments 2 and 3

Filament 1 is on the left, filament 2 is in the middle, and filament 3 is on the right. Filaments 1 and 2 have currents of 1 A in the ba z direction, and filament 3 has a current of 2 A in the ba z direction

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