(ii) transmission efficiency. [(i) 10.46 kv (ii) 207 A (ii) 95%] 6). A short 3-0 transmission line with an impedance of (5 +j 20) a per phase has sending end and receiving end voltages of 46-85 kV and 33 kv respectively for some receiving end load at a p.f.of 08 lagging. Determine () power output (i sending end power factor [(i) 22-86 kw (ii) 0-657 lag
Short Transmission Line
A short transmission line is a transmission line that has a length less than 80 kilometers, an operating voltage level of less than 20 kV, and zero capacitance effect.
Power Flow Analysis
Power flow analysis is a topic in power engineering. It is the flow of electric power in a system. The power flow analysis is preliminary used for the various components of Alternating Current (AC) power, such as the voltage, current, real power, reactive power, and voltage angles under given load conditions and is often known as a load flow study or load flow analysis.
Complex Form
A power system is defined as the connection or network of the various components that convert the non-electrical energy into the electric form and supply the electric form of energy from the source to the load. The power system is an important parameter in power engineering and the electrical engineering profession. The powers in the power system are primarily categorized into two types- active power and reactive power.
![THESE ARE THE QUESTIONS FROM THE SUBJECT POWER SYSTEM
FUNDAMENTALS AND THE CHAPTER IS PERFORMANCE OF TRANSMISSION
LINES AND THE TOPIC IS SHORT TRANSMISSION LINES THE ANSWERS ARE
GIVEN WITH THE QUESTION PLEASE DO ALL THE QUESTIONS PROPERLY
„DONOT SKIP ANY STEP AND DO YOUR BEST
4.) Estimate the distance over which a load of 15000 kW at 0-85 p.f. can be delivered by
a 3-phase transmission line having conductors of steel-cored aluminium each of
resistance 0-905 O/phase per kilometre. The voltage at the receiving end is to be 132
kV and the loss in transmission is to be 7-5% of the load. [69-55 km]
5). A 3-phase line 3 km long delivers 3000 kw at a p.f. 0-8 lagging to a load. The resistance and reactance
per km of each conductor are 0-40 and 0-3 Q respectively. If the voltage at the supply end is maintained
at 11 kv, calculate:
(i) ceceiving end voltage (line-to-line)
(ii) line current
(ii) transmission efficiency. [(i) 10.46 kv (ii) 207 A (ii) 95%]
6). A short 3-0 transmission line with an impedance of (5 +j 20) 0 per phase has sending end and
receiving end voltages of 46-85 kV and 33 kV respectively for some receiving end load at a p.f.of 0-8
lagging. Determine:
(i) power output
(i sending end power factor [(i) 22-86 kW (ii) 0-657 lag](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F44257973-1bef-4701-91ff-0908ad6750f2%2Fabcb5e96-e69e-4a69-a9b2-e5d818174088%2F1dn16_processed.jpeg&w=3840&q=75)
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