To keep transmissionpower losses (I 2 r) and voltage drops to acceptable levels, voltage levels had to be high for long-distancepowertransmission.
为了保持发射功率损失(我2 R)和电压下降到可接受的水平,电压等级,必须长途输电高。
2
We would need new long-distancepowertransmission but the technology for providing this is advancing fast, and the countries of North Africa would get a valuable new source of income.
Smart grid describes a more efficient, less costly method of moving electricity along long-distancetransmission lines to local power lines and end-users in homes and businesses.