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CALCULATING EFFICIENCIES OF POWER CONVERSION COMPONENTS & SYSTEMS
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A customer needed a dry resin potted AC voltage 60 Hz harmonic filter capacitor to complete an inverter design. They also needed a solution with military standards of reliability. NWL's solution was...
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Power Supplies for Dehydrators/Desalters

AC Power supply rated for Cl. 1, Div 1/ATEX Dehydration units at a storage facility  Double half wave DC power supply 

Removing water and salt from crude oil is a multi-stage process that requires treatment both upstream and downstream. After the crude oil is pumped, excess water must be removed prior to the crude being transported to a storage facility or refinery.  Electrostatic dehydrators are the most common equipment for removing water at the well, rig, or FPSO. Desalter units are generally found further downstream at the oil refinery or tank farm. Both types of treatment equipment require reliable, high voltage power supplies to efficiently agglomerate water droplets or mineral compounds and separate them from the crude oil.

NWL has been a leader in the development of electrostatic coalescer power supply technology for over half a century. Our standard 100% reactance units have a range of output voltages (12 to 25 kV) and power levels (25 to 250 kVA). These power supplies carry all major UL, CSA, and ATEX certifications. The 5 output taps enable our customers to optimize on the most suitable voltage based on crude oil conductivity, viscosity, and API gravity. We also make a double half wave DC output unit (positive and negative) for dehydration of refined oils with low conductivity.

Technical Information

Product sheet for 100% reactance AC unit

Product sheet for double half wave DC unit