A pair of power transmission lines each have 2.45-Ω resistance and carry 900 Amp. If the...
A pair of power transmission lines each have 2.45-Ω resistance and carry 900 Amp. If the primary voltage of the 10:1 step-up transformer is 2.2 kV, calculate the input voltage of the step-down transformer at the other end. (answer in kV)
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A pair of power transmission lines each have 2.45-Ω resistance
and carry 900 Amp. If the...
Please Provide detailed solution. Thank you An average power of 65 kW is delivered to a...
Please Provide detailed solution. Thank you
An average power of 65 kW is delivered to a distant farm via a transmission line that has a resistance R = 3.00 Ohm. The generator has an rms voltage V_1 = 500 V. A step-up transformer raises the voltage to an rms value V_2 = 10,000 V. Calculate the following: The rms value I_2 of the current on the transmission line The average thermal power (P_thermal) lost on the transmission line. The rms...
HUIS ASR YOUR TEACHER A transmission line that has a resistance per unit length of 1200000.00...
HUIS ASR YOUR TEACHER A transmission line that has a resistance per unit length of 1200000.00 10-40/m is to be used to transmit 5.00 MW over 400 miles (6.44 x 105 m). The output voltage of the generator is 4.50 kv (rms). (a) What is the line loss if a transformer is used to step up the voltage to 101 kV (rms)? kW (b) What fraction of the input power is lost to the line under these circumstances? (c) What...
Question3 3000 kVA / 0.09 p.u. Alternators 2 40004VA 0.12 p.u 6kV Busbars 4000 LVA 0.05 p.. Transmission Lines Lin...
Question3 3000 kVA / 0.09 p.u. Alternators 2 40004VA 0.12 p.u 6kV Busbars 4000 LVA 0.05 p.. Transmission Lines Lines 4000 kV 0.05 p.ย. Step-Up Transformers 5000 kVA 5000 kVA 0.06 р.u. 0.06 p.u. 11 kV Basbars -150 kVA 0.05 pu. Secondary feeder line Step-Down 1500 kVA 0.03 p.u 415 V Busbars Fault Point Figure Q3 Figure Q3 shows a power system comprising two three phase alternators supplying 6 kV busbars. I wo paralilel transmission lines fed from these busbars...
5. Consider the one-ine diagram shown below. The three-phase transformer bank is made up of three identical single-phase transformer, each specified by X1-0.004 Ω (on the high-voltage side), negl...
5. Consider the one-ine diagram shown below. The three-phase transformer bank is made up of three identical single-phase transformer, each specified by X1-0.004 Ω (on the high-voltage side), negligible resistance and magnetizing current, and turns ratio N2/N,-10. The transformer bank is delivering is delivering 110MW at 0.9 power factor leading to a substation bus voltage is 230kV. Determine the reactive power supplied by the source. (3.47) whose To rest of the system Generator ΔΥ 230-kV substation bus Step-up transformer bank...
THESE ARE THE QUESTIONS FROM THE SUBJECT POWER SYSTEM FUNDAMENTALS AND THE CHAPTER IS MECHANICAL DESIGN...
THESE ARE THE QUESTIONS FROM THE SUBJECT POWER SYSTEM FUNDAMENTALS AND THE CHAPTER IS MECHANICAL DESIGN OF TRANSMISSION LINES . THE ANSWERS ARE GIVEN WITH THE QUESTION PLEASE DO ALL THE QUESTIONS PROPERLY ..DONOT SKIP ANY STEP AND DO YOUR BEST 5. A string of 4 insulators has self-capacitance equal to 4 times the pin-to-earth capacitance. Calculate (i) the voltage distribution across various units as a percentage of total voltage across the string and (ii) string efficiency. [(i) 14·5%, 18·1%,...
Two three-phase power transmission lines with a nominal operating voltage of 220 kV and a frequency...
Two three-phase power transmission lines with a nominal
operating voltage of 220 kV and a frequency of 60 Hz are connected
in series as shown below.
Per-phase constants of the first 110 km long energy transmission
line (E.İ.H.-1); r = 0.01035Ω / km, L = 1.554 mH / km, and C =
7.387 ∙ 10-3 µF / km. Constants per phase of the second 100 km long
energy transmission line (E.İ.H.2); Zh = 1.035 + j58.58 Ω / phase
and...
solve no: 3.14 , 3.16, 3.19 please show each step and solve for beginners 120 Power...
solve no: 3.14 , 3.16, 3.19
please show each step and solve for beginners
120 Power System Analysis 3.12. A single-phase system similar to that shown in Figure 3.11 has two transformers A-B a B-C connected by a line B feeding a load at the receiving end C. The ratings and parame ter values of the components are 500 V/1.5 kV, 9.6 kVA. leakage reactance 5 % 1.2 kV/120 V, 7.2 kVA, leakage reactance 4 % series impedance (0.5 +...
transformers
Learning Goal: To understand the concepts explaining the operation of transformers.One of the advantages of alternating current (ac) over direct current (dc) is the ease with which voltage levels can be increased or decreased. Such a need is alwayspresent due to the practical requirements of energy distribution. On the one hand, the voltage supplied to the end users must be reasonably low for safety reasons(depending on the country, that voltage may be 110 volts, 220 volts, or some other value...
The following diagram shows a basic structure of energy distribution. In the thermoelectric plant, a three-phase...
The following diagram shows a basic structure of energy
distribution. In the thermoelectric plant, a three-phase generator
feeds an elevator transformer which has an output of 230kVrms in
each of its phases. The relation that is had in this transformer is
1:60. The transformer acts as a balanced three-phase source which
supplies two parallel three-phase networks represented by the
high-voltage lines. These high-voltage lines have a resistance per
line of Rw = 10Ω and are connected to a step-down transformer...
1. In class we derived how a transformer can up or downregulate the voltage in an...
1. In class we derived how a transformer can up or downregulate
the voltage in an electrical circuit with an alternating
current.
(a) Use the conservation of energy to deduce how the currents I1
and I2 must be related if you know the ratio of ε1/ε2 (for the
purpose of calculating the power delivered by a circuit ignore any
complications due to the fact that I(t) and ε(t) are
time-varying).
(b) In class I argued that power transmission is more...
Please Provide detailed solution. Thank you
An average power of 65 kW is delivered to a distant farm via a transmission line that has a resistance R = 3.00 Ohm. The generator has an rms voltage V_1 = 500 V. A step-up transformer raises the voltage to an rms value V_2 = 10,000 V. Calculate the following: The rms value I_2 of the current on the transmission line The average thermal power (P_thermal) lost on the transmission line. The rms...
HUIS ASR YOUR TEACHER A transmission line that has a resistance per unit length of 1200000.00 10-40/m is to be used to transmit 5.00 MW over 400 miles (6.44 x 105 m). The output voltage of the generator is 4.50 kv (rms). (a) What is the line loss if a transformer is used to step up the voltage to 101 kV (rms)? kW (b) What fraction of the input power is lost to the line under these circumstances? (c) What...
Question3 3000 kVA / 0.09 p.u. Alternators 2 40004VA 0.12 p.u 6kV Busbars 4000 LVA 0.05 p.. Transmission Lines Lines 4000 kV 0.05 p.ย. Step-Up Transformers 5000 kVA 5000 kVA 0.06 р.u. 0.06 p.u. 11 kV Basbars -150 kVA 0.05 pu. Secondary feeder line Step-Down 1500 kVA 0.03 p.u 415 V Busbars Fault Point Figure Q3 Figure Q3 shows a power system comprising two three phase alternators supplying 6 kV busbars. I wo paralilel transmission lines fed from these busbars...
5. Consider the one-ine diagram shown below. The three-phase transformer bank is made up of three identical single-phase transformer, each specified by X1-0.004 Ω (on the high-voltage side), negligible resistance and magnetizing current, and turns ratio N2/N,-10. The transformer bank is delivering is delivering 110MW at 0.9 power factor leading to a substation bus voltage is 230kV. Determine the reactive power supplied by the source. (3.47) whose To rest of the system Generator ΔΥ 230-kV substation bus Step-up transformer bank...
Two three-phase power transmission lines with a nominal
operating voltage of 220 kV and a frequency of 60 Hz are connected
in series as shown below.
Per-phase constants of the first 110 km long energy transmission
line (E.İ.H.-1); r = 0.01035Ω / km, L = 1.554 mH / km, and C =
7.387 ∙ 10-3 µF / km. Constants per phase of the second 100 km long
energy transmission line (E.İ.H.2); Zh = 1.035 + j58.58 Ω / phase
and...
solve no: 3.14 , 3.16, 3.19
please show each step and solve for beginners
120 Power System Analysis 3.12. A single-phase system similar to that shown in Figure 3.11 has two transformers A-B a B-C connected by a line B feeding a load at the receiving end C. The ratings and parame ter values of the components are 500 V/1.5 kV, 9.6 kVA. leakage reactance 5 % 1.2 kV/120 V, 7.2 kVA, leakage reactance 4 % series impedance (0.5 +...
The following diagram shows a basic structure of energy
distribution. In the thermoelectric plant, a three-phase generator
feeds an elevator transformer which has an output of 230kVrms in
each of its phases. The relation that is had in this transformer is
1:60. The transformer acts as a balanced three-phase source which
supplies two parallel three-phase networks represented by the
high-voltage lines. These high-voltage lines have a resistance per
line of Rw = 10Ω and are connected to a step-down transformer...
1. In class we derived how a transformer can up or downregulate
the voltage in an electrical circuit with an alternating
current.
(a) Use the conservation of energy to deduce how the currents I1
and I2 must be related if you know the ratio of ε1/ε2 (for the
purpose of calculating the power delivered by a circuit ignore any
complications due to the fact that I(t) and ε(t) are
time-varying).
(b) In class I argued that power transmission is more...
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