ABSTRACT
The potential energy conservation in any system can best be determined by examining each element of the system and its contribution to the losses and inefficiency of the system. Every device that does any work or causes a change in the state of a material has energy losses. Thus, typical losses include the following:
1. Electrical transmission losses from the metering point
to the system. (This is where the electric power
consumption is measured and the power bill deter-
mined.)
2. Conversion losses in any power conditioning equip-
ment. (This includes variable-frequency inverters
and the eAect of the inverter output on the motor
e E ciency.)
3. Electric motor losses to convert electric power to
mechanical power.
