Transformer Oil

Transformer oils are designed to operate effectively at very high temperatures, cooling, insulating, and stopping corona discharges and arcing.

TRANSFORMER OIL Conlan Oils - Supplying The Best Quality Oils For Your Business

TRANSFORMER OIL

Transformer Oil – Suppliers

Transformer oil plays a pivotal role in the operation and longevity of electrical transformers, serving four vital functions. Firstly, it acts as a heat dissipater, ensuring that the core and coil of the transformer remain at optimal temperatures by facilitating thermal syphoning. Secondly, the oil must possess dielectric capabilities to insulate and protect the transformer’s components. Most crucially, it shields the solid insulation, typically paper, from damage that could weaken the transformer’s tensile strength and reduce its overall lifespan.

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TRANSFORMER OIL – Frequently Asked Questions

What is Transformer Oil?

Transformer oil is used to insulate high-voltage electrical infrastructure such as transformers, capacitors, switches and circuit breakers. Transformer oils are designed to operate effectively at very high temperatures, cooling, insulating, and stopping corona discharges and arcing.
Transformer oils surround the core and windings of transformers, preventing wiring and cellulose-based insulation from oxidising, corroding and becoming less effective. With excellent dielectric strength, chemical stability and thermal conductivity, transformer oils circulate between the core and radiators, reducing the temperature of the infrastructure.
Transformer oil, What temperature's does it work at?

Instead of measuring maximum temperature to gauge efficiency and capability, transformers’ temperature rises are used as a guide, with lower temperature rise standards better at coping with overloads.
Liquid-filled transformers come with standard rises of 55°C or 65°C, based on a maximum average temperature of 40°C. Some hotter spots may exist within the transformer though. That means liquid-filled transformers have a maximum average operating temperature of 105°C. Insulation winding insulation is typically rated to 220°C.
If you are unsure of your transformer oil’s temperature rise standard, consult your documentation or contact the manufacturer.
Why do we need it?
Why does the oil need to be changed?
Does it have to be mineral oil?

Actually, no – it doesn’t. Over the years many things have been tried in transformers. Naphthenic mineral oils (high in Naphthenic compounds) have however become the predominant oils in use today as they have been found to be generally cheaper and more reliable than most. Some have been seriously bad, like PCB’s (Poly Chlorinated Biphenyls). PCB’s had great promise as they were really stable and had high flash points, but they were found to be seriously toxic and difficult to dispose of.

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CONLAN OILS

Dublin Road, Athy

Co. Kildare, R14 E006

059 863 2494

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