利用互感器下面两个内螺栓孔（M8—M12）安装，也可以利用互感器正面4个ф8的孔安装，但这四条螺丝不能上的太紧，否则会把开口式互感器连接处拉开影响精度，建议使用M6的螺丝安装。由于互感器为浇注后切开，所以四孔尺寸有±3mm误差。

Use transformer in the following two bolt holes (M8 - M12) installation, also can use positive four transformer ф 8 hole installation, but these four screws cannot too tight, otherwise you will put the opening type transformer connection influence precision, it is recommended to use the M6 screw to install. Because the transformer is casting after cut, so four hole size error of plus or minus 3 mm. 

1、线性好的零序电流互感器

1, good linear zero sequence current transformer 

有的用户要求零序电流互感器线性好，我公司可制作5%-100%额定电流区间误差为±3%的零序电流互感器。变比为50/1、100/1、150/1、200/1及以上。

Some users require linear zero sequence current transformer is good, we can make 5% to 100% rated current range error of plus or minus 3% of the zero sequence current transformer. Change ratio of 50/1, 100/1, 150/1, 100/1 or more. 

2、多变比的零序电流互感器

2, diverse than zero sequence current transformer 

我公司生产两个绕组三个变比的零序电流互感器

My company produces two winding three variable than zero sequence current transformer 

3、户外零序电流互感器

3, outdoor zero sequence current transformer 

户外安装时我公司给接线端子加防水盒，但只能做整体式。

Outdoor installation company to terminal I add waterproof box, but can only do integral. 

4、长圆孔零序电流互感器

4, slotted hole zero sequence current transformer 

为了方便使用和安装，而且高度不增加时我公司可制造长圆孔互感器如100×200；100×300；200×200；200×300等单位（mm）。

In order to easy to use and install, and highly increases our company can manufacture the slotted hole transformer as 100 by 200; 100 x 300; 200 x 200; 200 x 300 units (mm).