Energy Efficiency Test Methods for Single- and Three-Phase Small Motors
This Standard specifies the test methods to be used in measuring the energy
efficiency of small single- and three-phase rotating motors. This Standard
includes but is not limited to the following motor types:
(a) capacitor (permanent-split);
(b) capacitor (capacitor-start, capacitor-run);
(e) split-phase-start, capacitor-run;
(m) permanent magnet+;
(n) brushless dc+;
(o) inverter driven motors+;
(p) polyphase induction motors.
The method of quoting and the permissible tolerance on the nominal
efficiency values are also specified.
* The tests listed apply to operation on alternating current only.
+ These motors also include an integral converter that operates on alternating
This Standard applies to three-phase motors rated up to 0.746 kW at 1800 r/min
(or equivalent*) and single-phase motors rated up to 7.5 kW.
* An equivalent motor is a motor with the same torque output but with different
kilowatt output and speed. Torque varies as kilowatts per revolutions per