What is this called? and what it is used for.
What is this called? and what it is used for.
Answer:
The bushings on the transformers are used to carry the lines out of and into the transformer, either the HV (High Voltage) or the LV (Low Voltage) lines, and to provide an insulation between the transformer body and the live wires, to prevent any possible short circuit.
The function of HT (High Tension) bushings is to provide insulation between the high voltage winding of the transformer and the outside world.
The function of LT (Low Tension) bushings is to provide insulation between the low voltage winding of the transformer and the outside world.