Power Factor & Dissipation Test

Power Factor & Dissipation Test

 This is an AC test used to measure the bulk quality of the ground-wall insulation by measuring the dielectric loss per unit of volume of the insulation. A very important test for large motor reconditioning.

Tan delta testing - also called power factor testing (power factor is the same as tan delta within the low power factor ranges of practical electrical equipment).

As power is defined as the rate of energy transfer, 'power dissipation' is a measure of the rate at which energy is dissipated, or lost, from an electrical system. When an electric current does work on a conductor, the internal energy of that conductor increases, causing its temperature to rise above the ambient (surrounding) temperature. This causes energy to dissipate away from the conductor into the surroundings, through the process of heat transfer. The rate of this heat transfer (joules per second) is termed 'power dissipation' (in watts).