Purpose: To collect by freezing, the water removed during the vacuum drying of high voltage equipment such as transformers.
Water is an enemy to the dielectric properties of the solid and liquid insulation in electrical devices. Therefore it needs to be removed during the manufacturing process and then in the field as part of maintenance.
Collecting the water from the vacuum stream allows it to be measured, prevents it from passing into the vacuum pumps and increases the efficiency of the drying process.
Two types are available: LN-2 aluminum trap for use with liquid nitrogen and the electric cascade refrigerated DS trap.