Calculating Power Loss in Transmission Line with Transformers

  • Thread starter Thread starter aizen92
  • Start date Start date
  • Tags Tags
    Transformers
Click For Summary
SUMMARY

The discussion focuses on calculating power loss in a transmission line with transformers, specifically for a power station delivering 150 kW over a distance of 15 km. The total resistance of the transmission line is 0.6 ohms, and the voltage is 240V with a power factor of 1. The power loss can be calculated using the formula: R(line) * (I2eff)^2, but the user lacks the necessary values for I2eff and P2.

PREREQUISITES
  • Understanding of electrical power transmission concepts
  • Familiarity with Ohm's Law and power calculations
  • Knowledge of transformers and their role in power distribution
  • Ability to manipulate electrical formulas involving resistance and current
NEXT STEPS
  • Calculate I2eff using the formula P = V * I for the given power and voltage
  • Research the impact of power factor on transmission efficiency
  • Explore the effects of resistance in long-distance power transmission
  • Learn about transformer efficiency and its role in minimizing power loss
USEFUL FOR

Electrical engineering students, power system engineers, and professionals involved in energy transmission and distribution will benefit from this discussion.

aizen92
Messages
3
Reaction score
0
This is a question written in my book, i tried to solve it but didnt work with me.

Homework Statement


A power station delivers a power of 150kW to small town at 15km from the station. Energy is transmitted by means of a transmission line of total resistance of 0.6 _()_ (ohm). The power factor is 1. Calculate the power lost as a result of this transmission at a voltage of 240V.
It is in the lesson of transformers.

Homework Equations





The Attempt at a Solution


I have the rule that the power lost is equal to : [R(line)*(P2)^2]/[(Veff)^2 * cos^2(phi2)
or R(line) * (I2eff)^2 , but i don't have the I2eff and neither do i have P2 nor cos(phi)
 
Last edited:
Physics news on Phys.org
You need to show us your attempt at solving it so we can see what the problem is.
 
ohh ok ill edit the first post
 

Similar threads

Long distance electrical transmission efficiency
  • · Replies 2 ·
Replies
2
Views
2K
To reduce cost and weight, power transmission lines are made
  • · Replies 6 ·
Replies
6
Views
2K
Power Line Losses: Trivial Problem, Confusing Answer
  • · Replies 9 ·
Replies
9
Views
2K
Why is power loss = I^2R instead of P=VI or P=I^2R?
  • · Replies 14 ·
Replies
14
Views
4K
Power loss in the transmission system with a transformer
  • · Replies 4 ·
Replies
4
Views
2K
How Does Increasing Voltage Reduce Power Loss in Electrical Transmission?
  • · Replies 6 ·
Replies
6
Views
3K
Power loss in transmission lines
  • · Replies 20 ·
Replies
20
Views
12K
Solving Power Transmission Homework for Small Town | 1.00MW @ 35km
  • · Replies 6 ·
Replies
6
Views
2K
Optimizing Voltage for Power Transmission Efficiency
  • · Replies 4 ·
Replies
4
Views
4K
How can stepping up and down the voltage save energy in power transmission?
  • · Replies 2 ·
Replies
2
Views
2K