Technical Documents

“Wet” vs. “Dry” Type Capacitors – Myths and Misnomers

posted in: Latest Tech Documents

This paper discussed the often misinterpreted discussion of “Wet” and “Dry” type capacitors and the use of metalized polypropylene electrode designs.

With the proliferation of metalized polypropylene capacitors, which now comprise the vast majority of components used for Power Factor Correction, and the passing of vermiculite filled “dry” type cells the landscape has changed for specifying these systems, the specifications themselves however may have not.

Developments including the use of “Resin” filled cells (oil based liquid that changes to a high viscosity to inhibit leakage) in place of “oil filled” capacitors is providing improvements in the safety and reliability and  cost of Power Factor Correction systems.