Several voltages are used in the interconnected transmission systems that make up the Australian National Electricity Market:
For more information see the Related link shown below: 'The national grid in Australia as is run by AEMO, the Australian Energy Market Operator', which includes a map.
The voltage of the French National Grid is 2000 mw high voltage. It is a direct current electrical interconnector between the British and French transmission.
Several voltages are used in the interconnected transmission systems that make up the Australian National Electricity Market:Queensland and South Australia are predominantly 275 kVNSW is mainly 330 kVVictoria has a mix of 500, 330 and 220 kVFor more information see the Related link shown below: 'The national grid in Australia as is run by AEMO, the Australian Energy Market Operator', which includes a map.
because the voltage should be constant as the full transmission grid need ame voltage for synchronization of alternatos of grid
Grid stations are the station which reduce the High Voltage to Low Voltage and increase the Current, the Current is Low and Voltage is High at the Generation Plant to reduce the energy losses during transmission of Electricity.
Step up transformers are used to boost the voltage up for long distance transmission. At the other end, step down transformer are used to bring the voltage back to a working voltage for distribution to homes and industries
From the Generator station, the voltage is sent to a step up transformer. Transmission at higher voltages is used to over come line loss over the miles of transmission.
EHV = Extra High Voltage. To quote from the Wikipedia article (see link) "...this refers to equipment designed for more than 345,000 volts between conductors." Put simply - EHV transmission is the 'national grid' power system.
Power Systems or Transmission & Distribution
The terms transmission grid and electrical grid are somewhat interchangeable. The electrical grid, or power grid, is the network used to get electric power from where it is generated to all the places that use it. The one difference might be that a transmission line or grid might be thought of as the network of high voltage long distance lines. These are used to move large amounts of power with minimal loss through the use of extremely high voltages. These long distance lines connect generation facilities with substations, and it is at the substation that the voltages are stepped down, and that power is then put on the electrical grid.
At the National Grid was created in 2005.
220v ac UK and Europeans will need an adapter, but otherwise ok. US will need a converter.
The voltage can be anywhere from 5000 to 7500 volts. That is why the bugs snap when they get between the two grid plates.