Current Transformer: reduces the current which pass through the busbar to the desired value as the current measurement or protection purposes. Epoxy resin is used as a set point or LPCT. Ends are left closed.
Voltage transformer: reduces the voltage, that pass through the busbar, to the desired value for the purpose of measuring energy transportation and protection. It is epoxy-resin.
Heater: air drying and prevents formation of moisture.
Fuse: Makes the task of protection.
