Which type of transformer is used to conduct the assessment at high and ultra-­high voltages?

Option 2 : Testing transformer

• Testing transformers are used to conduct the assessment at high and ultra-high voltages.
• Power transformers are used in transmitting electrical power from generating end to distributing end by stepping up the transformer.
• A transformer having a tapped winding or two or more windings designed to furnish inductive reactance or to transfer radio-frequency energy from one circuit to another by means of a magnetic field is known as a radio transformer.
• Auto Transformer is an electrical transformer with one winding, a portion of which is common to both the primary and the secondary circuits.