来源：沟通翻译公司 更新时间：2013-12-17 10:10
The cores are electrically and magnetically isolated from one another and constructed as ring-type cores. Depending on the purpose of their application with respect to rated output, metering accuracy and overcurrent operating characteristics, the material used for the cores can be of grain-oriented transformer lamination or of a high permeable special sheet. By providing the secondary winding with taps, various transformation ratios can be obtained. The secondary winding consists of an insulated varnished copper wire. The turns are uniformly distributed along the circumference of the core.
参考译文: The power grid can only accommodate less than 50 percent of the newly increased hydropower available in scenario A as against 70 percent of that in scenario B. In addition, the latter scenario enables a relatively high utilization hours for both hydraulic and thermal power plants, therefore their utilization coefficients of equipment are greatly enhanced.
After 2010，the practice of a complete focus on the development of hydropower resources in a continuous manner is inappropriate due to the load characteristics of Burma’s main power grid and the output features for its planned hydro projects. If insisting on doing that, it will give rise to a decline of capacity factor for the installed hydro equipment and a low investment return.