Oil Analysis
Oil analysis is the process in which lubricant is extracted from a piece of machinery and examined for particles as a result of wear. Higher amounts of certain particles indicate a developing problem and would allow for scheduled maintenance to be performed before a catastrophic event occurs.
Particles normally found using oil analysis…
Chromium particles from piston rings, cylinder liners and exhaust valves
Nickel particles from crankshafts, camshafts and valves
Aluminum particles from pistons and bearings
Copper particles from bushings and oil coolers
Lead and tin particles from the crankshaft main bearings
Titanium particles from bearings, valves, struts and connecting rod pins
Silicon, particles are a contaminant generally associated with an engine with an obstruction in the air intake.
Sodium and potassium from the cooling system. A coolant system leak can introduce water/antifreeze into the lubrication, diluting the oil.
Fuel also dilutes the oil, the fuel thins the oil making it less viscous and damaging the moving parts by allowing added friction.
Carbon particles caused by incomplete combustion. It indicates dirty or worn injectors, improper fuel mixture, inadequate air intake flow, blow-by or an obstructed exhaust system. Diagnosing the problem and correcting it improves performance and lowers fuel consumption.
Particles found in Transformers:
Moisture Content found in Transformer Oil
Dielectric properties for conductivity in the oil
Specific Gravity for oil viscocity and oil condition
Gas analysis used to detect corbon monoxide and other gasses that can be harmful to transformer components.