scope:

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);

(c) capacitor-start;

(d) split-phase;

(e) split-phase-start, capacitor-run;

(f) shaded-pole;

(g) repulsion;

(h) repulsion-induction;

(i) repulsion-start-induction-run;

(j) reluctance;

(k) universal*;

(I) dct;

(m) permanent magnett;

(n) brushless dct;

(o) inverter driven motorst;

(p) polyphase induction motors. also specified.

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 current.

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 kilowatt5 per revolutions per minute.