CSA C391-15

Abstract

This Standard covers three-phase, alternating current, salient pole synchronous machines 150 kW and up, 200 through 13,800 volts, 60 and 50 Hertz and will assist in verifying the machine efficiency has been maintained. <br>Note: <em>This Standard can be useful and applied with discretion to products outside the scope of this Standard.</em> <br>Large 2-pole and 4-pole solid cylindrical rotor machines, typically used as generators for utility and large industrial applications, are excluded from this Standard. <br><strong>Note:</strong> <em>See Annex E for information on generators</em> <br>In this Standard, "shall" is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the standard; "should" is used to express a recommendation or that which is advised but not required; and "may" is used to express an option or that which is permissible within the limits of the standard. <br>Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material. <br>Notes to tables and figures are considered part of the table or figure and may be written as requirements. <br>Annexes are designated normative (mandatory) or informative (nonmandatory) to define their application.