Impedance / DUTT, Electrical Engineering

3) The impedance for a 120 km, 230-kV line is given as j 0.9 ohm/km and
j 0.6 ohm/km for self and mutual terms respectively; resistance is neglected. The mho
characteristic for the line’s distance protection is set to reach 100 km at the line’s
characteristic impedance angle. Assume that a line-to-ground fault occurs at a distance “x”
from the relay by contact with a tree branch, where the tree presents an impedance of 30
ohms to the flow of fault current.
(a) What is the impedance seen by the relay, expressed as a function of x?
(b) What is the relay reach (in km) for this fault condition (i.e. at what distance from the relay
is the fault on the verge of going undetected)?
Posted Date: 4/2/2013 3:39:00 PM | Location :







Related Discussions:- Impedance / DUTT, Assignment Help, Ask Question on Impedance / DUTT, Get Answer, Expert's Help, Impedance / DUTT Discussions

Write discussion on Impedance / DUTT
Your posts are moderated
Related Questions

Precautions to be taken in carrying out repairs on HT and LT switch gear? Ans: The following precautions to be taken in carrying out repairs on LT and HT switch gears. a

This project is about another particular application of a particular embodiment of the patent: A Long Stroke Steam Engine using Solar Generated Steam. The machine elements such as


Briefly explain single mode and multimode fibres The optical fibres were categorized within two according to the number of modes it passes as: • Single mode fibres • Multi mode

a 49pf cap,a 50 uH inductor, and a 100 ohms resister are in parallel: what is the resonance freq? And what is the complex impedance vector at 100MHZ?

1.Determine and plot the ratios μ tr /μ and μ ab /μ  from 5 keV to 100 MeV for      (a) air,              (b) water,      (c) muscle,     (d) bone, and      (d) lead

Using the coefficients obtained for the noisy signal and the FIR filter in Q1(c)(i) implement on the TMS320VC5510DSK. You can use and modify any of the files provided in the Board

Input Output Operations Many times microprocessor has to  accept data  from input port and send data to  output  port to  interact with the  real world. Input  port is  tri st

Molecular Chain (MIT, Princeton, Colorado) Consider a one-dimensional chain consisting of N molecules which exist in two configurations, α, β, with corresponding energies  and