Key Advantages: 

– Rated primary voltage classes: up to 220 kV class and above.

– Power-frequency withstand and lightning impulse (BIL) levels scale with class (e.g., 34–50 kV & 95–125 kV for 24 kV class; up to 460 kV & 1050 kV for 220 kV).

– Rated secondary voltages: common values like 0.115 kV or 0.115/√3, 0.11 kV etc., depending on design

– Accuracy classes: typical options include 0.2, 0.5, and 3P for metering/protection

– Rated output (VA) and thermal limiting output rated: VA up to 300 VA and thermal limit up to 2000 VA.

– Design & Construction Features

– Dry-type epoxy resin insulation with silicone rubber outdoor protection for lower classes.

– Oil-immersed inductive designs for medium to high-voltage

– Hermetically sealed / oil-filled units for higher classes