no-load loss

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.{{sfn|Wu|Ni|2016|p=131}} No-load loss typically depends on the operating voltage of a grid unit{{sfn|Wu|Ni|2016|p=89}} and can be attributed to:

• dielectric loss in cables;{{sfn|Wu|Ni|2016|p=141}}
• core loss in electric transformers;{{sfn|Wu|Ni|2016|pp=145-146}}
• 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);{{sfn|Wu|Ni|2016|p=149}}
• loss in the electromechanical measuring devices (low, e. g. an "analog" electrical meter consumes less than 1.5 Watts of power);{{sfn|Wu|Ni|2016|p=150}}
• corona loss in high-voltage lines.{{sfn|Wu|Ni|2016|p=132}}