No-load loss (also called "fixed loss") is a portion of the loss of electricity that does not depend on the power being distributed through an electric circuit, as opposed to the load loss. No-load loss typically depends on the operating voltage of a grid unit and can be attributed to: dielectric loss in cables; core loss in electric transformers; some types of losses in synchronous condensers (rotor surface losses, pulsating losses in stator teeth, and losses in the stator due to higher harmonics of the rotor field); loss in the electromechanical measuring devices (low, e. g. an "analog" electrical meter consumes less than 1.5 Watts of power); corona loss in high-voltage lines.
See also No load power
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