Thus, you'll need to stepupvoltage to 745 kilovolts (which is a lot) so that wind doesn't lose all its energy in the transmitting process.
因此，为了保证在传输过程中不丢失全部能量，必须建设高达745千瓦（非常高）的变电站。
2
For a step-up transformer, the output voltage is HIGHER than the input voltage.
对于一个升压变压器，输出电压高于输入电压。
3
Otherwise, because of the limitation of IGBT's specified voltage, we must use special step-up transformer, which is more expensive, if we put this device into high voltage power system.