OIL FILTRATION & SAMPLE ANALYSIS
CEC provide a range of services for oil filtration and the testing of oil and insulation used in electrical power transformers. As part of our High Voltage Maintenance, our expert staff have a detailed knowledge of transformer diagnostics and can provide detailed current and historical reports to assist in the maintenance of transformers. We also offer oil filtration services. We facilitate the collection, transportation and processing of used non-PCB and PCB-contaminated naphthenic-based transformer oil from power utilities, electrical maintenance companies, used oil collectors and other sources. CEC also provide instruction around the collection of samples using approved sample containers to send the samples to our testing facilities.
CEC’s minespec Transformer Oil Filtration unit and 4WD service truck travel the East Coast of Australia servicing councils, mines & industrial clients. CEC are experts in HV installation and maintenance, and onsite Transformer Oil Filtration forms part of CEC’s overall HV maintenance.
Onsite Transformer Oil Filtration restores the oil to its new state. The filtration process removes acidity, sludge and soluble oil decay products from the transformer windings and cooling system.
The filtration process lowers operating temperatures of the transformer, which helps prevent recontamination. The desired outcome of onsite Transformer Oil Filtration is to maintain the insulating properties of the Transformer Oil. This can be achieved with the optimum seven year cycle. This will allow the integrity of the transformer oil to remain intact and prevent costs by not only increasing the life of the transformer, but also reducing the probability of an unplanned outage.
To handle electrical stresses, transformer oils are required to have better dielectric strength. Lower residual water, gas and contamination content must be maintained to reduce the speed of oil ageing. All of these operations are performed using CEC’s onsite transformer oil filtration unit.
Power transformer oil filtration, dehydrating and degassing can be performed individually or simultaneously based on the various conditions of the mineral oil and customer requirements.