CAN/CSA-C747-94 (R2005)

1. Scope 1.1 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) univeral*; (l) dc+; (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 current. 1.2 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 minute.