The paper analyses the current transformer (ct) that secondary winding possesses casingtap, and its secondary connector wiring fault's influence on the ct changing rate.
文章分析了二次绕组带有抽头的套管电流互感器(CT)，其二次端子接线错误对CT变比的影响。
2
The taper mill tap is a special tool for opening up a passage in casing.
锥形铣锥是用来套管打通道的专用工具。
3
The milled tap pup joint is a special tool used for opening up a passage in casing.