Generation and Transport of Electrical Energy- Week 5 - Overhead lines and Cables - Video 2

why are power cables often not used as much for power transmission compared to overhead lines?

power cables cost a lot more than overhead lines

what are the 4 main components you will find in modern power cables and what are their functions?

note:

don’t have to remember left hand side words. just worth noting that screen is the same as shield

what are the 6 main design properties required for power cables

what is the best way to minimise your conductor losses in a power cable?

choose a low resistivity material for your conductor. this means cable can conduct a higher load current for any given temperature rise.

what is the equation for the inductance per meter of a single core power cable ?

in a single core power cable what are the two parts which make up the inductance?

1. self inductance of the current carrying conductor

2. mutual inductance between conductor and sheath.

what is the equation you need to remember for power line conductor to sheath capacitance in a single core power cable ?

what is the equation you need to remember for calculating the power dissipated in the dielectric/ the dielectric loss

what is the second equation for inductance you need to remember for a single core cable and capacitance for diagram shown .

write down the advantage and disadvantage table for cable vs overhead line?