Transformer Oil Testing

Transformer oil refers to insulation and cooling oil used in transformers and other electrical equipment. Regular transformer oil testing prevents transformer failure and ensure consistent electricity supply for network supplier and consumers. Transformer oil testing consists of measuring breakdown voltage and other physical and chemical properties of samples of the oil.

STEMart carries out comprehensive transformer oil testing service according to internationally recognized test methods and standards using the most up to date and innovative analytical techniques.

Standard Tests

• Appearance and color inspection
• Dielectric strength determination
• Water content measurement
• Oxidation inhibitor content measurement
• Polychlorinated biphenyls content measurement
• Density measurement
• Specific gravity detection
• Suspended particles detection
• Dielectric breakdown voltage testing
• Interfacial tension testing
• Kinematic viscosity measurement
• Antioxidant concentration measurement
• Neutralization value mg KOH/g
• Flash point determination
• Pour point determination
• Particle count
• Dissolved gas analysis
• Trace gases analysis
• Carbon dioxide and carbon monoxide detection
• Acetylene and ethylene detection
• Oxygen and nitrogen detection
• Methane and ethane detection
• Hydrogen detection
• Total dissolved combustible gases detection
• Dissolved metals and ferrography detection
• Corrosive Sulphur detection
• Composition of insulating oils
• Power dissipation factor determination
• Insulating fluid infrared spectral analysis
• Furan testing
• Resistivity testing
• Oil oxidation stability testing

For more information about our transformer oil testing services, please contact us.