The ECoil Mobile Transformer Oil Regeneration System (Model RS-M) has been specifically designed for the on-site regeneration of insulating mineral oil in energized or de-energized transformers. The ECoil can be utilized for tank to tank regeneration as well. The ECoil Transformer Oil Regeneration plant uses a special blend of Fuller’s Earth Clay, permanently installed in skid mounted columns. The dirty oil is directed through the columns by forced percolation. The Transformer Oil Regeneration process effectively removes contaminants such as acids and sludge from the oil, rectifies the colour and restores the oxidation stability of the oil. In addition to the regenerating capabilities, the ECoil system incorporates a heater, degasser and particulate removing filters. The result is complete degasification, dehydration and filtration of the oil. An optional heavy-duty heater is provided to remove sludge from the transformer. The ECoil Transformer Oil Regeneration Plant consistently regenerates used and deteriorated transformer oil to a specification that surpasses all ASTM and IEEE specifications/standards.

One of the many unique features of the Transformer Oil Regeneration System is the ability to reactivate the same clay up to 300 times before the clay is exhausted. Once exhausted, the clay can be disposed of as a non-hazardous material.

During the dirty oil regeneration process, the clay beds will become saturated with impurities. The efficiency will drop to a point that requires the reactivation of the clay. With the simple push of a button, the reactivation of the clay is carried out within the clay columns. The reactivation process is fully automated and enables the system to process oil again and again using the same clay. Since the clay can be re-used, Filtervac is able to offer a high grade of Fuller’s Earth Clay that allows for the oil to be regenerated to a specification that cannot be consistently matched by any Conventional Fuller’s Earth System. In addition it has been recognized that after the initial reactivation, the clay’s adsorptive capacity is enhanced and provides better results than virgin Fuller’s Earth. The ECoil System avoids the complications, costs and performance issues associated with typical oil processing units.

The ECoil Transformer Oil Regeneration Plant is controlled by a programmable logic controller (PLC). The system is monitored by a computerized supervisory system. This system monitors and records all vital operating parameters. All ECoil Mobile Systems come equipped with an operator control room. The Ecoil System is housed in either a Semi-Trailer (Option ‘T’ – Varied Length available) or in 20 and 40ft sea freight containers (Option 20 or 40). In addition, FilterVac can supply a full line of oil testing equipment to provide the operator with an on-board oil testing facility.