Impedance / DUTT, Electrical Engineering

Assignment Help:
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)?

Related Discussions:- Impedance / DUTT

FET operation, ON output plot of a JFET n-channel transistor if ID is close...

ON output plot of a JFET n-channel transistor if ID is close to IDSS does the value of VGS close to VP?

Circuit analysis, what is quality factor in term circuit analysis

what is quality factor in term circuit analysis

Potentiometer, how can yuo calculate voltage,curent basing on the meter bri...

how can yuo calculate voltage,curent basing on the meter bridge?

Illustrate flat plate collectors, What is the use of basic earth-sun angles...

What is the use of basic earth-sun angles? Show by mean of diagram. Illustrate sun as source of energy with relevant data? Illustrate flat plate collectors. Describe liquid f

Emitter follwer, Ask questertion #Minimum 100 words accepted#

Ask questertion #Minimum 100 words accepted#

How speech is transmitted in digital switching environment, Q. How speech i...

Q. How speech is transmitted in digital switching environment by using PCM/TDM? Ans: A digital carrier system is a communications system which uses digital pulses instead of

find the value of the slip and air gap power, The Thevenin equivalent circ...

The Thevenin equivalent circuit at the terminals of R2 / S for a 60 hz, 6 pole induction motor is shown below. a) Find the value of the slip for maximum torque and the maximum t

Help, How do you be in Harward

How do you be in Harward

Difference between and and test instructions, Mention how do the AND & T...

Mention how do the AND & TEST instructions differ in their functionality AND: Changes the destination operand while performs the AND operation and. TEST: This ins

Write Your Message!

Captcha
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