What are Line losses and how can be it minimized/controlled.?
- 2 Answers
- 2681 Views
- Omega, XYZ, I also Faced
- E-Mail Answers
Answer Posted / abc
There typically two types of losses in line T&D.
1. Technical Losses
The technical losses are due to energy dissipated in the conductors, equipment used for transmission line, transformer, subtransmission line and distribution line and magnetic losses in transformers.
Technical losses are normally 22.5%, and directly depend on the network characteristics and the mode of operation.
The major amount of losses in a power system is in primary and secondary distribution lines. While transmission and sub-transmission lines account for only about 30% of the total losses. Therefore the primary and secondary distribution systems must be properly planned to ensure within limits.
The unexpected load increase was reflected in the increase of technical losses above the normal level
Losses are inherent to the distribution of electricity and cannot be eliminated.
There are two Type of Technical Losses.
1. Permanent / Fixed Technical losses
Fixed losses do not vary according to current. These losses take the form of heat and noise and occur as long as a transformer is energized
Between 1/4 and 1/3 of technical losses on distribution networks are fixed losses. Fixed losses on a network can be influenced in the ways set out below
Corona Losses
Leakage Current Losses
Dielectric Losses
Open-circuit Losses
Losses caused by continuous load of measuring elements
Losses caused by continuous load of control elements
2. Variable Technical losses
Variable losses vary with the amount of electricity distributed and are, more precisely, proportional to the square of the current. Consequently, a 1% increase in current leads to an increase in losses of more than 1%.
Between 2/3 and 3/4 of technical (or physical) losses on distribution networks are variable Losses.
By increasing the cross sectional area of lines and cables for a given load, losses will fall. This leads to a direct trade-off between cost of losses and cost of capital expenditure. It has been suggested that optimal average utilization rate on a distribution network that considers the cost of losses in its design could be as low as 30 per cent.
Joule losses in lines in each voltage level
Impedance losses
Losses caused by contact resistance.
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
Dears we deal in Chemical are Plate earthing. Kindly call if any requirement and questions. Tech Earth Solutions Mohit Verma 8791071007
What is the main cause of magnetism?
What are the advantages of instrument transformer?
The magnitude of sum of two sinusoidal av voltage is equal to 230 volt.the magnitude of each individual voltage is also equal to 230 volt.what must be the phase difference between voltages?
high voltage transformer input voltage,current and amps rating..distributed transformer input voltage,current and amps rating...
which metal is use in shunt
how unidirectional torque is produced in DC motor?
how we do Vector group ,magnetic balance and tap changer test in Transformer?
why the difference arise between HT reading & LT reading (submeters fixed in complexes, apartments etc)if the power factos exceed from 0.9 to 1 can the ht meter reads fast?
what will happen if frequency is below 50 hz?
What are the uses of lead compensator?
I have 4 busbar of 1000 ampere. we use 4 busbar to make 4000 ampere in one phase.my problem is that when we applied 60% load on that then busbar produced high noise.what is the reason of that and how can i minimize that noise.
How do i carry out or know the vector group of a Dyn1 and Dyn5 transformer
Write a note on materials used as a fuse element.
what is effect of leading power facter on the system and billing
