A 200-km, 230-kV, 60-Hz three-phase line has a positive-sequence series impedance ?=0.08+?0.48 Ω/km and a positive-sequence...
A 200-km, 230-kV, 60-Hz three-phase line has a positive-sequence
series impedance ?=0.08+?0.48 Ω/km and a positive-sequence shunt
admittance ?=?3.33×10−6 S/km. At full load, the line delivers 250
MW at 0.99 pf lagging and at 220 kV. Using the nominal ? circuit,
calculate:
a. The ABCD parameters,
b. The sending-end voltage and current,
c. The percent voltage regulation.
Homework Answers
Add Answer to:
A 200-km, 230-kV, 60-Hz three-phase line has a positive-sequence
series impedance ?=0.08+?0.48 Ω/km and a positive-sequence...
[2000] Question 3: A 500-km, 500-kV, 60-Hz, uncompensated three-phase line has a positive sequence series j4.4...
[2000] Question 3: A 500-km, 500-kV, 60-Hz, uncompensated three-phase line has a positive sequence series j4.4 x 10-6 S/ impedance z - j0.35 ohm/km and a positive-sequence shunt admittance y km. If at full load, the line delivers 700 MW at unity power factor and at 475 kV, Calculate The nominal voltage level for this line a) the exact ABCD parameters for this line, the sending- end voltagnb transferred, and max theoretical power that can be transferred, and c) d)...
A 230-kV, three-phase transmission line has a per phase series impedance of z = 0.05j0.45 2...
A 230-kV, three-phase transmission line has a per phase series impedance of z = 0.05j0.45 2 per km and a per phase shunt admittance ofy = j3.4 x 10-6 siemens per km. The line is 80 km long. Using the nominal r model, determine (a) The transmission line ABCD constants. Find the sending end voltage and current, voltage regulation, the sending end power and the transmission efficiency when the line delivers (b) 200 MVA, 0.8 lagging power factor at 220...
Q2. Draw the nominal π circuit that is used to represent the medium-length transmission line model with total series impedance Z and total shunt admittance Y. Then derive the equations to express the...
Q2. Draw the nominal π circuit that is used to represent the medium-length transmission line model with total series impedance Z and total shunt admittance Y. Then derive the equations to express the ABCD parameters (a) 20% (b)A 200 km, 230 kV, 50 Hz three-phase overhead transmission line has a positive-sequence series impedance z (0.08 + j0.48) Ω/km, and a positive-sequence shunt admittance y-j3.33 x 10T° S/km. At full load, the line delivers 250 MW at 0.99 power factor lagging...
PROBLEM: A 230-kV, 50 Hz, three-phase transmission line is 120 km long. The line has a per phase ...
PROBLEM: A 230-kV, 50 Hz, three-phase transmission line is 120 km long. The line has a per phase series impedance of z-0.05 +j0.45 Ω per km, and a per phase shunt admittance of y 3.4x10-6 Siemens per km. The line delivers (at the receiving end) 200 MVA, 0.8 lagging power factor at 220 kV. Now consider two cases: A- Assume that shunt parameters of the transmission line are ignored (i.e. even if this is a medium length transmission line, under...
4. A 500 km, 500kV,60 Hz three-phase transmission line has a positive sequence series impedance z...
4. A 500 km, 500kV,60 Hz three-phase transmission line has a positive sequence series impedance z =j 0.38.2/km and a shunt admittance y =j 4.0 x 10-6S/km. Line losses are neglected. a. Calculate the line's characteristic impedance Zc, the propagation constant y and the exact ABCD parameters of the line... b. Calculate the surge impedance loading (SIL) in MW and the maximum power that the line can deliver at rated voltage C. At full load the line delivers 1000 M...
2) A 50 Hz transmission line 300 km long has a series impedance of 40 j125...
2) A 50 Hz transmission line 300 km long has a series impedance of 40 j125 ohms and a total shunt admittance of 103 S. The load draws 500 MW at 220 kV with 0.8 pf lagging. Find the sending end voltage using (a) Short line approximation and (b) Nominal π method.
A 50-Hz, three-phase transmission line is 300 km long. It has a total series impedance of...
A 50-Hz, three-phase transmission line is 300 km long. It has a total series impedance of 23 + j75 Ohms and a shunt admittance of j500 µS. It delivers 50 MW at 220 kV, with a power factor of 0.88 lagging. Find the voltage at the sending end using: 1) the short line approximation. 2) the medium-length approximation. 3) the long line equation. How accurate are the short- and medium-length approximations for this case?
A three-phase transmission line is 200 km long. lt has a total series impedance of 25+j110)Ω...
A three-phase transmission line is 200 km long. lt has a total series impedance of 25+j110)Ω Per Phase and a total shunt admittance ofj5x 10 Ω. It delivers 180 MW at 275 kV and 0.8 power factor lagging to a load connected at the receiving end. Using the medium π model of the line, determine the voltage, current, real power, reactive power and power factor at the sending end of the line.
power system A single-circuit 60-Hz high voltage power transmission line is 370 km (230 mi) long....
power system
A single-circuit 60-Hz high voltage power transmission line is 370 km (230 mi) long. The conductors are Rook with flat horizontal configuration and 7.25 ms=(23.8 ft.) conductor spacing. The load on the line is 125 MW at 100% power factor. Use attached Tables A3 to A3to determine; The sending end voltage Vs The sending end current Is The sending end power Ps The percentage voltage regulation The transmission efficiency Given that Ds for the Rook conductor is 0.0327...
Problem 2: A 345 kV, 60 Hz, three-phase characteristic parameters of the transmission line are: transmission...
Problem 2: A 345 kV, 60 Hz, three-phase characteristic parameters of the transmission line are: transmission line is 130 km long. The r= 0.036 ?/km L = 0.8 x 10-3 H/km C = 0.0112 x 10-6 F/km The receiving end load is 270 MVA with 0.8 PF lagging at 325 kV. (k) What is the total series impedance of this transmission line? (5 points) () What is the total shunt admittance of this transmission line? (5 points) (m) Calculate the...
[2000] Question 3: A 500-km, 500-kV, 60-Hz, uncompensated three-phase line has a positive sequence series j4.4 x 10-6 S/ impedance z - j0.35 ohm/km and a positive-sequence shunt admittance y km. If at full load, the line delivers 700 MW at unity power factor and at 475 kV, Calculate The nominal voltage level for this line a) the exact ABCD parameters for this line, the sending- end voltagnb transferred, and max theoretical power that can be transferred, and c) d)...
A 230-kV, three-phase transmission line has a per phase series impedance of z = 0.05j0.45 2 per km and a per phase shunt admittance ofy = j3.4 x 10-6 siemens per km. The line is 80 km long. Using the nominal r model, determine (a) The transmission line ABCD constants. Find the sending end voltage and current, voltage regulation, the sending end power and the transmission efficiency when the line delivers (b) 200 MVA, 0.8 lagging power factor at 220...
Q2. Draw the nominal π circuit that is used to represent the medium-length transmission line model with total series impedance Z and total shunt admittance Y. Then derive the equations to express the ABCD parameters (a) 20% (b)A 200 km, 230 kV, 50 Hz three-phase overhead transmission line has a positive-sequence series impedance z (0.08 + j0.48) Ω/km, and a positive-sequence shunt admittance y-j3.33 x 10T° S/km. At full load, the line delivers 250 MW at 0.99 power factor lagging...
PROBLEM: A 230-kV, 50 Hz, three-phase transmission line is 120 km long. The line has a per phase series impedance of z-0.05 +j0.45 Ω per km, and a per phase shunt admittance of y 3.4x10-6 Siemens per km. The line delivers (at the receiving end) 200 MVA, 0.8 lagging power factor at 220 kV. Now consider two cases: A- Assume that shunt parameters of the transmission line are ignored (i.e. even if this is a medium length transmission line, under...
4. A 500 km, 500kV,60 Hz three-phase transmission line has a positive sequence series impedance z =j 0.38.2/km and a shunt admittance y =j 4.0 x 10-6S/km. Line losses are neglected. a. Calculate the line's characteristic impedance Zc, the propagation constant y and the exact ABCD parameters of the line... b. Calculate the surge impedance loading (SIL) in MW and the maximum power that the line can deliver at rated voltage C. At full load the line delivers 1000 M...
2) A 50 Hz transmission line 300 km long has a series impedance of 40 j125 ohms and a total shunt admittance of 103 S. The load draws 500 MW at 220 kV with 0.8 pf lagging. Find the sending end voltage using (a) Short line approximation and (b) Nominal π method.
A three-phase transmission line is 200 km long. lt has a total series impedance of 25+j110)Ω Per Phase and a total shunt admittance ofj5x 10 Ω. It delivers 180 MW at 275 kV and 0.8 power factor lagging to a load connected at the receiving end. Using the medium π model of the line, determine the voltage, current, real power, reactive power and power factor at the sending end of the line.
power system
A single-circuit 60-Hz high voltage power transmission line is 370 km (230 mi) long. The conductors are Rook with flat horizontal configuration and 7.25 ms=(23.8 ft.) conductor spacing. The load on the line is 125 MW at 100% power factor. Use attached Tables A3 to A3to determine; The sending end voltage Vs The sending end current Is The sending end power Ps The percentage voltage regulation The transmission efficiency Given that Ds for the Rook conductor is 0.0327...
Problem 2: A 345 kV, 60 Hz, three-phase characteristic parameters of the transmission line are: transmission line is 130 km long. The r= 0.036 ?/km L = 0.8 x 10-3 H/km C = 0.0112 x 10-6 F/km The receiving end load is 270 MVA with 0.8 PF lagging at 325 kV. (k) What is the total series impedance of this transmission line? (5 points) () What is the total shunt admittance of this transmission line? (5 points) (m) Calculate the...
Most questions answered within 3 hours.
-
What is the % w/v when 80 mL of a 2.0% solution is mixed with 50...
asked 1 minute ago -
How can I solve the following using a TI83
Claim: Most adults would erase all of...
asked 13 minutes ago -
Analysis of 3-ethyl-3-buten-2-ol gave C, 72.13%; H, 11.92%.
Calculate the percent deviation of these results from...
asked 10 minutes ago -
Which VALS segment is most likely to have a top of the line
brand new (2015)...
asked 14 minutes ago -
Write a program to score the paper-rock-scissor game. Each of
two users types in either P,R...
asked 34 minutes ago -
Calculate the equillibrium constent K for a redox reaction that
has E°cell = -.98 V at...
asked 46 minutes ago -
A concave spherical mirror has a radius of curvature of
magnitude 19.6 cm.
(a) Find the...
asked 48 minutes ago -
3. draw a diagram of the magnetic field:
a. around a long straight wire with a...
asked 47 minutes ago -
If you titrated 30.0 mL of 0.1 M HCl with 0.1 M NaOH, indicate
the approximate...
asked 55 minutes ago -
NADH passes electrons into the electron transport chain. List
the carriers that would receive the electrons,...
asked 1 hour ago -
A cylindrical cable with a resistivity of 1.6x10-8 Ω·m and cross
sectional area of 3x10-5 m^2...
asked 1 hour ago -
True or False.
A consumer with convex preferences who is indifferent between
the bundles (5,2) and...
asked 1 hour ago