Homework Answers
Add Answer to:
Consider a simple power system consisting of an ideal voltage source, an ideal step-up transformer, a...
1. A single-phase power system consists of a 480-V 60-Hz generator supplying a load of Zload...
1. A single-phase power system consists of a 480-V 60-Hz generator supplying a load of Zload = 4 + j3 2 through a transmission line of impedance Zline = 0.18 + 0.24 2. (a) (i) If the power system is exactly as shown in Fig. P3.1, calculate the line current voltage at the load. (ii) Calculate the transmission line losses. (b) Suppose a 1:10 step-up transformer is placed at the generator end of the transmission line and 10:1 step-down transformer...
2. Consider a 20kV source that is connected to a long transmission line with ZLINE (2...
2. Consider a 20kV source that is connected to a long transmission line with ZLINE (2 j42 to a load with a ZL a. Determine the PLoss in the transmission line? b. Use a Step Up Transformer (1:20) at the source side connected to the transmission line. At the end of the transmission line use a Step Down Transformer (30:1) to connect to the load. Draw the circuit? c. Show how this link lowers transmission line power losses compared to...
In an ideal 1:8 step-down transformer, the primary power is 10 kW and the primary voltage...
In an ideal 1:8 step-down transformer, the primary power is 10 kW and the primary voltage is 4kV. What is, a) the primary current? b) the secondary voltage? c) the secondary current? The secondary is connected to a power transmission line. If the line has a resistance of 29 ㎕2m, what is the rate at which energy is being dissipated in 800 km of line? If 8:1 step up transformer is used, what is the rate at which energy is...
An AC circuit consists of a non-ideal source, an ideal transformer, and a load impedance. Assume...
An AC circuit consists of a non-ideal source, an ideal transformer, and a load impedance. Assume VTH = 66/42° VRMS, ZTH = 86/-37° and n = 2. Zih 1:n + th ele lll ZLOAD non-ideal AC source What is the maximum average power in W) that could be delivered to the load?
Problem 1: A single-phase load with a nameplate rating of 4.16kV, 2.5MW, 0.8 pf (lag) is...
Problem 1: A single-phase load with a nameplate rating of 4.16kV, 2.5MW, 0.8 pf (lag) is being supplied from a 4.16kV singe-phase generator. There is a 5km transmission line between the generator and the load. The transmission line has an impedance of 0.5 / 60◦ ohms per 1000m. What is the ratio of the voltage at the load to the voltage at the generator terminals? What is the power loss in the transmission line? What is the actual load power?...
1) A single-phase 50-kVA, 2400/240 volt, 60 Hz distribution transformer is used as a step-down tr...
1) A single-phase 50-kVA, 2400/240 volt, 60 Hz distribution transformer is used as a step-down transformer at the load end of a 2400-volt feeder whose series impedance is (1.0+2.0) Ω. The equivalent series impedance of the transformer is (10+j25) Ω referred to the high voltage (primary) side. The transformer is delivering rated load at 0.8 power factor lagging and at rated secondary volitage. Neglect the transformer exciting curent. Using the transtormer raltings as base quantities work this problem in per...
last two digits of student number are 10 Q.3 A single-phase power system is shown in...
last two digits of student
number are 10
Q.3 A single-phase power system is shown in Figure. The power source feeds a load through a transmission line and a IXY (kVA), 20kV/3.8kV transformer. The transformer's series impedance is shown as referred to the LV side. The source voltage is v:(t) = 2Xsin(3141) kV, which delivers 120 kVA at 0.95 power factor lagging to the system. Determine, a. actual voltage drop in the transmission line, (5 marks) b. actual voltage drop...
4. Figure shows a power source that feeds a 100 kVA 14/2.4 kV transformer through a...
4. Figure shows a power source that feeds a 100 kVA 14/2.4 kV transformer through a feeder with impedance of 100/60° Ω Load 90 kw 0.85 PF lagging Feeder transmission line) Source Transformer Load The transformer has been tested to determine its equivalent circuit. The results of the tests are: Open-circuit test Voc = 14 kV oc 0.1 A Рос-800 w Short-circuit test Vsc 800 V Isc = 7A Psc 2 kW The load on the transformer is 90 kW...
1.1 (3 marks) A single-phase power system consists of a 480 volt 60 Hz generator supplying...
1.1 (3 marks) A single-phase power system consists of a 480 volt 60 Hz generator supplying a load of 4 + j 3 ohms through a transmission line whose impedance is 0.18 + j 0.24 ohm. The generator impedance may be neglected. 1.1.1 Determine the transmission loss (power loss in the transmission line resistance. (1 mark) 1.1.2 Redo the 1.1.1 when the following is done to the power system. The generated voltage is stepped up ten times by using an...
Palred Quiz) 3 For ideal transformer as shown in figure P.3, determine: a. The currents I1,...
Palred Quiz) 3 For ideal transformer as shown in figure P.3, determine: a. The currents I1, I2 and I3! b. The primary and secondary voltage Vu V, Vg and Va C. The complex power supplied by the source! d. The effective power dissipated by the load impedance, Zioad 812-20 Ω 1:3 18 Ω Zload 40200 v ( 45 Figure P.3 Ideal Transformer Circuit
1. A single-phase power system consists of a 480-V 60-Hz generator supplying a load of Zload = 4 + j3 2 through a transmission line of impedance Zline = 0.18 + 0.24 2. (a) (i) If the power system is exactly as shown in Fig. P3.1, calculate the line current voltage at the load. (ii) Calculate the transmission line losses. (b) Suppose a 1:10 step-up transformer is placed at the generator end of the transmission line and 10:1 step-down transformer...
2. Consider a 20kV source that is connected to a long transmission line with ZLINE (2 j42 to a load with a ZL a. Determine the PLoss in the transmission line? b. Use a Step Up Transformer (1:20) at the source side connected to the transmission line. At the end of the transmission line use a Step Down Transformer (30:1) to connect to the load. Draw the circuit? c. Show how this link lowers transmission line power losses compared to...
In an ideal 1:8 step-down transformer, the primary power is 10 kW and the primary voltage is 4kV. What is, a) the primary current? b) the secondary voltage? c) the secondary current? The secondary is connected to a power transmission line. If the line has a resistance of 29 ㎕2m, what is the rate at which energy is being dissipated in 800 km of line? If 8:1 step up transformer is used, what is the rate at which energy is...
An AC circuit consists of a non-ideal source, an ideal transformer, and a load impedance. Assume VTH = 66/42° VRMS, ZTH = 86/-37° and n = 2. Zih 1:n + th ele lll ZLOAD non-ideal AC source What is the maximum average power in W) that could be delivered to the load?
1) A single-phase 50-kVA, 2400/240 volt, 60 Hz distribution transformer is used as a step-down transformer at the load end of a 2400-volt feeder whose series impedance is (1.0+2.0) Ω. The equivalent series impedance of the transformer is (10+j25) Ω referred to the high voltage (primary) side. The transformer is delivering rated load at 0.8 power factor lagging and at rated secondary volitage. Neglect the transformer exciting curent. Using the transtormer raltings as base quantities work this problem in per...
last two digits of student
number are 10
Q.3 A single-phase power system is shown in Figure. The power source feeds a load through a transmission line and a IXY (kVA), 20kV/3.8kV transformer. The transformer's series impedance is shown as referred to the LV side. The source voltage is v:(t) = 2Xsin(3141) kV, which delivers 120 kVA at 0.95 power factor lagging to the system. Determine, a. actual voltage drop in the transmission line, (5 marks) b. actual voltage drop...
4. Figure shows a power source that feeds a 100 kVA 14/2.4 kV transformer through a feeder with impedance of 100/60° Ω Load 90 kw 0.85 PF lagging Feeder transmission line) Source Transformer Load The transformer has been tested to determine its equivalent circuit. The results of the tests are: Open-circuit test Voc = 14 kV oc 0.1 A Рос-800 w Short-circuit test Vsc 800 V Isc = 7A Psc 2 kW The load on the transformer is 90 kW...
Palred Quiz) 3 For ideal transformer as shown in figure P.3, determine: a. The currents I1, I2 and I3! b. The primary and secondary voltage Vu V, Vg and Va C. The complex power supplied by the source! d. The effective power dissipated by the load impedance, Zioad 812-20 Ω 1:3 18 Ω Zload 40200 v ( 45 Figure P.3 Ideal Transformer Circuit
Most questions answered within 3 hours.
-
Write a program to solve the Josephus problem, with the following
modification:
Sample Input:
./a.out n...
asked 1 hour ago -
At the start of a CD it is spinning at a rate of 525 rpm
(revolutions...
asked 2 hours ago -
4. Without doing any calculations, predict whether the observed
∆T would increase, decrease or remain the...
asked 3 hours ago -
Based on the range, which of the following sets of scores has
the greatest variability? 3,...
asked 4 hours ago -
Ripples in a pond travel at a velocity of 3 m/s with one peak
passing a...
asked 4 hours ago -
A man stands on the roof of a building of height 13.0 mm and
throws a...
asked 4 hours ago -
The extent to which assets are financed by borrowed funds and
other liabilities is indicated by:...
asked 5 hours ago -
Explain in detail
Germany is the fifth largest economy
explain what goods and services Germany specializes...
asked 6 hours ago -
The density of platinum is 21.45 g/mL. If a cube of platinum
with a mass of...
asked 6 hours ago -
Accounts Receivable
Sales
A/R Posting
Extended Sales Invoice
Packing Slip
Compare invoice to packing slip 2...
asked 6 hours ago -
Michaella, age 23, is a full-time law student and is claimed by
her parents as a...
asked 6 hours ago -
Why are polymers not typically casted into products?
asked 6 hours ago