Transformer oil, a type of insulating and cooling oil used in transformers and other electrical equipment, needs to be tested periodically to ensure that it is still fit for purpose. This is because it tends to deteriorate over time.
BDV test means the Breakdown Voltage Test. This test is performed for verifying the dielectric strength of the oil of the transformer. Dielectric Strength is the maximum capacity to resist the voltage of insulating oil. This test demonstrates the dielectric Strength of Transformer Oil.
Oil testing of transformer is how blood testing to human beings. Transformer oil testing is a proven and best known loss prevention technique which should be part of any maintenance program of an organization. It not only acts as an early warning system but also help us to understand the inner health of the transformer without disrupting it’s operation. Transformer oil testing when done on a regular time interval allows maintenance department to identify priorities, plan work assignment, gives enough time to arrange outside vendor for transformer servicing or maybe order necessary parts and materials.