LB oil-insulated current transformers for outdoor installations are based on a hairpin design. All our current transformers are built-to-order to customer specifications. This current transformer is available with either porcelain or silicone rubber insulators, with brown porcelain insulator considered as the standard product. Hermetic sealing of the design is accomplished using a gas cushion above the oil to prevent free-breathing outside moisture-laden air.
The LB demonstrates reliable performance in service with a low field failure rate that is lower than the industry average. This design has been installed in different applications and from desert to arctic climates.