Potential Transformers of single core for metering purposes are commonly used. Di-electric strength of the oil-impregnated paper insulation is preserved by the hermetic sealing of the transformer.

Characteristics:

• Non-ageing Epoxy with Class B insulation
• Non Hygroscopic
• Vacuum cast under controlled conditions
• Partial discharges as per allowable limits
• Designed to work in high ambient in enclosedswitch gears
• Good mechanical stability under fault conditions