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110kV 115kV 132kV 138kV SF6 Voltage Transformer is outdoor, single phase
The product adopts case-type structure. The equipment body is placed inside the case. Its central part adopts silicone rubber composite insulator or high strength porcelain insulator. Top is equipped with primary Terminals
?It has a pressure-relief device with pressure blasting (release pressure) of 0.8MPa at side panel, free oil, no risk of explosion and free maintenance.
?The layer insulation consists of high strength composite insulation of diamond polyester film and gas SF6, no aging and has a function of insulation restoring.
?Density meter is mounted on the base which can show the transformer internal gas pressure (display value automatically converted to internal gas pressure at 20 ?) and density, when transformer internal pressure drops down to alarm level, gas should be replenished.
?Optimized designs for external insulation make inner and external electric field distribute evenly without discharge. Two type insulators are offered for user.
1. Composite insulator
2. High strength porcelain insulator
?Sealing ring adopts special material for SF6 gas which is applicable to a area with large?temperature?difference and harsh environment , annual leakage rate is less than 0.5%.link:http://www.hyee-current-transformer.com