整体式互感器安装要在敷设电缆前进行，电缆敷设时穿过互感器。

The installation of the integral transformer should be carried out before laying the cable, and the transformer is used when the cable is laid.

开口式互感器不受电缆敷设与否的限制，具体方法如下：

Open type transformer is not limited by cable laying or not, and the concrete method is as follows:

（1）拆下互感器“K1ˊ”、“K2ˊ”的联接压片（圆形互感器无此项要求）。

(1) remove the transformer "K1", "K2's" connection (not required for pressing round transformer).

（2）将互感器顶部两个内六角螺栓松开拆下（圆形互感器是将两侧的紧固螺丝松开拆下），互感器便分为两部分。

(2) loosen the two inner six angle bolts at the top of the instrument transformer (the circular transformer is to loosen and remove the fastening screws on both sides), and the transformer is divided into two parts.

（3）把互感器套在电缆上，将接触面擦干净，薄薄涂上一层防锈油，对好互感器两部分后拧上内六角螺栓（两侧的紧固螺丝），互感器两部分要对齐以免影响性能。

(3) the instrument is sheathed on the cable, and the contact surface is wiped off. The thin layer is coated with antirust oil. After the two part of the instrument transformer is screwed, the internal six angle bolt (both sides of the fastening screw) and the two parts of the transformer are aligned so as not to affect the performance.

（4）将联接片固定在“K1ˊ”、“K2ˊ”上（圆形互感器无此项要求）。

(4) the connection piece is fixed on the 'K1', 'K2' (not required for circular transformer).

（5）内孔﹥120mm的互感器如水平安装时,请加非导磁支架。

(5) > hole transformer 120mm such as the level of installation, please post magnetic stent.