Why winding resistances and exciting current are neglected

Assignment Help Electrical Engineering

Reference no: EM13255939

Three single-phase, two-winding transformers, each rated 450 MVA, 20 kV/288.7 kV, with leakage reactance Xeq 1?4 0:12 per unit, are connected to form a three-phase bank. The high-voltage windings are connected in Y with a solidly grounded neutral. Draw the per-unit zero-, positive-, and negative-sequence networks if the low-voltage wind- ings are connected: (a) in D with American standard phase shift, (b) in Y with an open neutral. Use the transformer ratings as base quantities. Winding resistances and excit- ing current are neglected.

Reference no: EM13255939

Questions Cloud

Using the shoesmith wave forecast and the forecast from the : Forecast the future 5-year spot rate for the won (versus the dollar) using the Shoesmith Wave forecast and the forecast from the financial markets.

Find the magnitude of the particles angular momentum : The position vector of a 1.0-kg particle is given by r = 3 i + 2 j + 5 k and its velocity by v = 8 i - 2 k. Find the magnitude of the particle's angular momentum in kg.m2/s

Design 3 stage amplifier with the input signal : Design 3 stage amplifier with the following requirement input signal = 5 mV with R=10k ohms over all gain > 1000 power supply: Vcc = 5V, Vee = -5V Rin > 1 Mega Ohms Rout = 100 ohms 1st Stage BJT must use inverting

State possible structures for the molecule : In a separate experiment, it was found that, for fixed temperature and pressure, a 0.100 L sample of this compound takes 1.73 times longer to effuse than does a 0.100 L sample of Ar(g). What is the molecular formula of the compound? , draw possibl..

Why winding resistances and exciting current are neglected : The high-voltage windings are connected in Y with a solidly grounded neutral. Draw the per-unit zero-, positive-, and negative-sequence networks if the low-voltage wind- ings are connected: (a) in D with American standard phase shift

Determine the overall magnification of the microscope : The distance between the eyepiece and the objective lens in a certain compound microscope is 12.7 cm. The focal length of the objective is 0.540 cm, determine the overall magnification of the microscope

What is the projects npv : Floatation cost for debt is 4% and 8% for equity. What is the project's NPV before and after adjusting for floatation cost?

What is the enterpise value of turnbull corp : A competing firm that is very similar to Turnbull has an enterprise value/EBITDA multiple of 5.40. what is the enterpise value of Turnbull Corp?

Explain rank the ph of the resulting solutions : suppose a 0.100 M solution of each of the following substances is prepared. Rank the pH of the resulting solutions from lowest to highest: KF, NH4I, HBr, NaCl, LiOH.

User Account

All Pages