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

Solar energy, can i use the direct solar energy from solar plate to charge ...

can i use the direct solar energy from solar plate to charge my laptop without a battery

R = 10 ohms VB = 5V V1 is the sinusoidal wave having, Ask questionDraw the ...

Ask questionDraw the following circuits on the PROTEUS and check the output waveform on oscilloscope #Minimum 100 words accepted#

Arithmetic operations, Arithmetic Operations Various  types of arithmet...

Arithmetic Operations Various  types of arithmetic  operations like addition subtraction increment and  decrement  are performed in 8085 microprocessor. Generally in these  ope

Electrical machine, transformer voltage induced in armatur of ac commentato...

transformer voltage induced in armatur of ac commentator machin in case tha field flux in sinosoidal?..

Explain about subscriber loops signalling, Q. Explain about Subscriber loop...

Q. Explain about Subscriber loops signalling? In a telephone network, subscriber loop signal linger lies upon the kind of a telephone instrument used. The intra exchange signal

Characteristics of unijunction transistor, Characteristics of  unijunction...

Characteristics of  unijunction transistor: Characteristics : The static emitter characteristic of UJT at a given inter base voltage VBB in shown in fig. From fig., it is no

Find the current in resistance, Q. Obtain the Thévenin and Norton equivalen...

Q. Obtain the Thévenin and Norton equivalent circuits for the portion of the circuit to the left of terminals a-b in Figure, and find the current in the 200- resistance.

What is the working of sensor in robotics, (a) What is the working of senso...

(a) What is the working of sensor in Robotics ? (b) Define the following : (i) Proximity Sensor (ii) Tactile Sensors (iii) Optical Sensor. (c) What is an End Effecto

Delay line in CRO, why we use delay line in CRO what happens if we not use ...

why we use delay line in CRO what happens if we not use it?

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