b) A three-phase overhead line has a load of 30MW, the line voltage is 33kV and power factor is 0.85 lagging. The receiving end has a synchronous compensator, 33kV is maintained at both ends of the line. Calculate the MVAr of the compensator given that the line resistance is 6.50 per phase and inductance reactance is 2002 per phase.

b) A three-phase overhead line has a load of 30MW, the line voltage is 33kV and power factor is 0.85 lagging. The receiving end has a synchronous compensator, 33kV is maintained at both ends of the line. Calculate the MVAr of the compensator given that the line resistance is 6.50 per phase and inductance reactance is 2002 per phase.

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter4: Transmission Line Parameters

Section: Chapter Questions

Problem 4.35MCQ: The affect of the earth plane is to slightly increase the capacitance, and as the line height...

See similar textbooks

Related questions

Q: In a short paragraph, explain the need to use bundled phase conductors in HV, EHV, and UHV 3-phase…

A: Bundled conductors are made up of two or more stranded conductors that have been bundled together to…

Q: Please answer this diligently. Other answers in the internet seems wrong. Please help me understand…

Q: 1) A 60-Hz, ...-km, three-phase overhead transmission line has a series impedance z = 0.8431L79.04…

Q: Three zones of a single-phase circuit are identified shown in Figure below. The zones are connected…

Q: a) The Newmont Mining Company at Ahafo in the Bono region of Ghana requested a dedicated power…

A: Given :V=138 kVY=0.001∠90° SZ=95∠78°ΩP=49 MWcos θ=0.85L=120 km

Q: Three single-phase step-up transformers rated at 50 MVA, 13.2 kV/80 kV are connected in delta-wye on…

A: The objective of the question is to calculate the secondary line voltage, the currents in the…

Q: The impedance per phase of 3-phase transmission line on a base of 100 MVA, 100 kV is 2 pu. Find the…

A: Given- 3-phase transmission line- MVAnew=400,MVAold=100,kVold=100,kVnew=400,Zold (pu). To Find- The…

Q: Three single-phase two-winding transformers,

Q: Three single-phase step-up transformers rated at 50 MVA, 13.2 kV/80 kV are connected in delta-wye on…

A: Three single-phase step up transformers rated at S1−ϕ=50 MVA, 13.2 kV/80 kV are connected in…

Q: Example 60 MVA, 13.8 kV a balance three phase load with 0.8 lagging power factor. Determine for the…

Q: Please answer this diligently. Other answers in the internet seems wrong. Please help me understand…

A: To determine the overall power factor, the total line currents for phases a, b, and c, and the…

Q: 2. A three-phase 60-hz transmission line has its conductors arranged in a triangular formation

Q: A single phase line has a resistance of 52ohm per conductor and an inductance of 25 mH per…

Q: The VSWR on an 50-Ohm transmission line is 5. The distance between successive voltage minima is 80…

Q: Three single-phase distribution transformers, each rated for 18 kVA, 20000/220 volts, are connected…

A: Three single-phase distribution transformers are connected in a Dy three-phase bank. Rated power…

Concept explainers

Fault Analysis

In an electrical engineering system, a fault is an abnormal electric current flowing through the system, and fault analysis is the study of these faults. For instance, a short-circuit is a fault where the live wire touches the ground or neutral wire. If a circuit is interrupted by a failure of a current-carrying wire then an open circuit fault occurs. The open-circuit faults are also called series faults. One or more phases or ground may be involved in a three-phase fault or may occur only between two phases. Current flows into the earth in case of a ground fault or earth fault. For most situations, the prospective short circuit current of a fault that is predictable can be calculated. To limit the loss of service because of a failure, the protective devices can detect fault conditions and operate circuit breakers and also other devices. All phases equally can be affected in a poly-phase system which is known as symmetric electrical fault. The asymmetric fault becomes more complicated to analyze if only some phases are affected. By using methods such as symmetrical components, the power system analysis of these types of faults is often simplified. The main objective of power system protection is to design, detect, and interrupt power system faults.

Question

b) A three-phase overhead line has a load of 30MW, the line voltage is 33kV and power factor
is 0.85 lagging. The receiving end has a synchronous compensator, 33kV is maintained at
both ends of the line. Calculate the MVAr of the compensator given that the line resistance
is 6.50 per phase and inductance reactance is 200 per phase.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

Step 2

Step 3

Step 4

Trending now

This is a popular solution!

Step by step

Solved in 4 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, electrical-engineering and related others by exploring similar questions and additional content below.

Similar questions

The impedance per phase of a 3-phase transmission line on a base of 100 MVA and 100 kV is 2 p.u. The value of this impedance on a base of 400 MVA and 400 kV would be?
In a three-phase line, in order to avoid unequal phase inductances due to unbalanced flux linkages, what technique is used?
Conductor spacings, types, and sizes do have an impact on the series impedance and shunt admittance. True False
For a balanced three-phase positive-sequence currents Ia,Ib,Ic, does the equation Ia+Ib+Ic=0 hold good?
answer it i will rate
In nominal-T method of medium transmission line what is the assumption about the capacitance
3-phase single circuit bundled conductor line with two sub-conductors per phase has horizontalspacing with 6.1 m between the centre lines of adjacent phases. The distance between the subconductorsof each phase is 30.5 cm and each sub-conductor has a diameter of 2.54 cm. Find theinductance per phase per km. [0.988 mh]
In a three phase overhead system , each line is suspended by a string of three insulators. The voltages across top unit and the middle unit are 8KV and 11KV respectively. Calculate a) ratio of shunt capacitance to self capacitance b) line voltage c) string efficiency.
Please answer this diligently. Other answers in the internet seems wrong. Please help me understand and solve this problem. I'll give a like. Thanks!
Problem 4- A large 3-phase industrial load draws 3.6 MVA at 0.85 power factor lagging from through a three- phase 12.47/7.2 kV 3-wire overhead distribution line. The phase conductor is #1 ACSR “Robin". Taking 3.6 MVA and 12.47 kV as base values, determine (a) The base impedance in (N) (b) The reactive power drawn by the load (p.u.) (c) The total current (p.u.) drawn from the power supply
A three-phase 20 kV medium-voltage line is 10 km. Resistance is 0.365 2/km and reactance is 0.363 2/km (inductive). Voltage at the beginning of line is 20.5 kV. At the end of the line is loading P= 800 kW with power factor 0.95ind. Draw 1-phase equivalent diagram and calculate load current, line voltage at the end the of line, voltage drop and power losses of the line.
For transferring electrical power at 220 kV, six conductors of ACSR Drake constitute a 60Hz double circuit three phase line arranged as shown below. The vertical spacing between consecutive conductors is 14ft; the longer horizontal distance is 32ft whereas the shorter horizontal distance is 25ft. a. Find the inductance per phase per mile and the inductive reactance per phase in ohms per mile. b. Find the capacitive reactance to neutral in ohm-miles. c. Find the resistance per phase per mile in ohms per miles. d. If the length of the line is 90 miles then draw an equivalent circuit of the line and analyse the open circuit and short circuit performance of the line. e. Find the maximum power we can transmit over the line. f. If the line is delivering power to a load of 20MW at 0.8 power factor lagging then find the voltage at the receiving end of the line. Also, Determine the voltage regulation, losses and efficiency of the line. g. If a fixed shunt compensation of 3 MVAr is attached at…