Minimising Power Transmission Losses (VCE SSCE Physics): Flashcards
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Formula for power loss in transmission lines
Formula for power loss in transmission lines
Power loss change when voltage increases by factor of 10
Power loss change when voltage increases by factor of 10
Decreases by factor of 100
Typical extra high transmission voltage in Australia
Typical extra high transmission voltage in Australia
Domestic AC voltage and frequency in Australia
Domestic AC voltage and frequency in Australia
at
Conductor material used in transmission lines
Conductor material used in transmission lines
Aluminium
Why aluminium used instead of copper
Why aluminium used instead of copper
Cheaper and lighter
Voltage gradient causing corona effect (air breakdown)
Voltage gradient causing corona effect (air breakdown)
Current practical voltage limit in Australia
Current practical voltage limit in Australia
Overall power loss % in Australian transmission system
Overall power loss % in Australian transmission system
About 10% of generation
Purpose of step-up transformers in transmission
Purpose of step-up transformers in transmission
Increase voltage to reduce current and power loss