A 4200-V, three-phase transmission line has an impedance of 4+j ohms per phase. If it supplies a load of 1 MVA at 0.75 power factor, find: (a) the complex power (b) the power loss in the line (c) the voltage at the sending end.   *Ans. S=0.75+j0.66 MVA, PL=25.14 kW and VS=4.492∠ − 1.912°kV

Q: A short transmission line is represented by an impedance of 0.01 + jo.04. What is the voltage…

A: Given data, A short transmission line has Z=0.01+j0.04 ΩI=1.93∠-8° puVs=1∠0° pu

Q: A load of 135 MW at a power factor of 0.9 lagging can be delivered by a 3-phase transmission line.…

A: The line current supplied to the load and the resistance per phase for a 3∅ transmission line are…

Q: The length of a three-phase power transmission line with a nominal operating voltage of 69 kV is…

A:

Q: 5. A substation receives 4,500 kW power at 0.9 p.f. lag. at 10 kV from a generating station over a…

A:

Q: 4) the length of a three-phase power transmission line with a Nominal operating voltage of 69 kV is…

A: Given: Nominal operating voltage, Transmission line impedance, Length of transmission line, Power of…

Q: An inductive circuit draws a line current of 10A. If the reactive component of the line current is…

A: Given, The total current is I=10A And, the reactive component of Total current is 6A i.e, Isinθ=6

Q: AC Power and Power Factor 1. Two loads are connected in parallel across a 13,200-volt line. Load A…

A:

Q: The voltage at the sending side (source) of a transmission line is 1 KV (Vs = 1 KV). The voltage at…

A:

Q: The open circuit and short circuit impedance of a transmission line are 200 ohm and 50 ohm…

A: Given data:

Q: A load of 140 MW at a power factor of 0.8 lagging can be delivered by a 3-phase transmission line.…

A: given total power delivered is 140 mw so total losses are 0.065*140 =9.1 mw

Q: a transmission line has an impedance of 4 12 Ohms/phase, Find the per-unit impedance of this line on…

A:

Q: A three-phase transmission line has parameters Xc-6 k 2, R-3.25 2 and X₁-25 0, and delivers 300 MW…

A: The system parameter of the 3ϕ systems is given as Capacitive reactanceXC=6kΩ/ph,Y=1-jXC=j6k,Now the…

Q: Estimate the distance over which a load of 15000 KW at p.f-0.8 lagging can be delivered by a 3-phase…

A:

Q: 0.2 ohm j1.6 ohm 0.8 ohm j3.4 ohm 79ohm j55 ohm a A 24020° 240/120° 0.2 ohm 0.8 ohm j3.4 ohm j55 ohm…

A: There is a circuit in delta connection.

Q: Consider the system in the figure to the right. The Zbus for the system is given as follows: [j0.411…

A: Given data Zbus=j0.411j0.310j0.354j0.310j0.446j0.333j0.354j0.333j0.450 To find out We have to…

Q: Which of the following descriptions IS NOT correct for loads in power systems? A. The purely…

A: capacitive load will deliver reactive power to the grid.     so option C is the wrong one

Q: Estimate the distance over which a load of 12000 kW at a p.f. 0-65 lagging can be delivered by a…

A: The solution can be achieved as follows

Q: A 13.2 kV, 3 miles transmission line is composed of 336,400 Cmil, 26/7 (Linnet) acsr has GMR of…

A: The specification of the single phase transmission line is given asV=13.2kV,length l=3 miles,Series…

Q: A three phase 60 Hz transmission line delivers 750 KW at 95% leading power factor and at delta…

A:

Q: spectively per mile. Find the percent efficiency of the line.

A:

Q: A single phase transmission line is delivering 450 kVA load at 12 kV. Its resistance is 4.5 0 and…

A: We are authorized to answer three subparts at a time, since you have not mentioned which part you…

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

A:

Q: A balanced load of 30 MW is supplied at 132 kV, 50 Hz and 0.85 p.f. lagging by means of a…

A: Given  A balanced load of 30 MW is supplied at 132 kV, 50 Hz and 0-85 p.f. lagging by means of a…

Q: A single phase 50 Hz generator supplies an inductive load of 5,000 kW at a power factor of 0.707…

A: Given data :PR=5000 KWCos∅R=0.707 lagL=20 kmR=0.195 Ω/kmVR=10KvFind a) Vs ,V.R, ηb)C=? if…

Q: EXAMPLE : Estimate the distance over which a load of 15000 KW at p.f=0.8 lagging can be delivered by…

A: The solution can be achieved as follows.

Q: A load of 130 MW at a power factor of 0.6 lagging can be delivered by a 3-phase transmission line.…

A: 1_∅ power=3-∅ power3. Per phase voltage=line voltage3power losses=3×I2 R.

Q: Quest- A single phase 50 Hz, system supplies an inductive load of 5000 kw at power factor 0.8 lag…

A: A single phase 50 Hz, system Inductive load = 5000 kw at power factor 0.8 lag through a line 25 km.…

Q: A load of 135 MW at a power factor of 0.65 lagging can be delivered by a 3-phase transmission line.…

A:

Q: A load of 138+j460 Ohm is supplied through 3+j14 Ohm line as shown in Figure 1. (a) Find the average…

A: The circuit is given as here Load Impedance ZL=138+j460Ω   Line Impedance Zline=3+j14Ω

Q: 2. Estimate the distance over which a load of 12000 kW at a p.f. 0-65 lagging can be delivered by a…

A:

Q: An 11kV, three phase transmission line has a resistance of 2 ohm and reactance of 4 ohm per phase.…

A: The solution can be achieved as follows.

Q: A 3- p, 50-Hz generating station supplies a load of 14500 kW at 0.6 (lag) through a short overhead…

A: Most of human energy requirement is meet by generating electrical energy. Once electrical energy is…

Q: S.1) The serial impedance per phase of a three-phase 45 km energy transmission line is 2 + j4 /…

A: As per the policy attempting only first question, Given: Vs = VR = 115 Kv

Q: 0.16-henry  inductance are connected in series. What is the equivalent  impedance? a. 20 + j102.2…

A: Given ,here are two relays with resistance and inductance so in series they are added to find the…

Q: non-sinusoidal quasi-square wave voltage v(t) is applied to a nonlinear load, resulting in a…

A:

Single Phase AC Circuit

Alternating Current (AC) is a type of electric power in which the electric current changes, both in magnitude and direction, at regular intervals. This AC Circuits can deliver power in either a Single Phase system or a Three Phase system.