Method of assembling a transformer

A method of assembling a transformer/reactor comprising the steps of;

• receiving a first coil having a first coil end conductor;
• receiving a second coil having a second coil end conductor;
• mounting the first coil and second coil on respective limbs of a magnetic core;
• arranging the first coil such that the first coil end conductor projects outwardly from the first coil from a point between the first and second coils;
• arranging the second coil such that the second coil end conductor projects outwardly from the second coil from a point between the first and second coils;
• mounting a first conducting tube around the first coil end conductor;
• prior to mounting the second coil in its final position on its limb of the magnetic core, in which the first and the second coil end conductors are aligned, mounting a second conducting tube around the second coil end conductor;
• connecting the first coil end conductor and the second coil end conductors to form an interconnection between the coils;
• and
• mounting two or more insulation rings over the conducting tubes within a snout of the respective first and second coil.