Draft Details

Designation:CSA C391
Source:CSA
Contact name:Jason Patrascu
Review start date:Feb 21, 2025
Review end date:Apr 22, 2025
Categories:Electrical
Contact email:mary.morgan(at)csagroup.org
Draft Scope/Description:

1.1 Inclusions

This Standard covers three-phase, alternating current, salient pole synchronous machines 150 kW and up, 200 through 13,800 volts, at rated machine frequencies and will assist in verifying the machine efficiency has been maintained.

Note: This Standard can be useful and applied with discretion to products outside the scope of this Standard.

1.2 Exclusions

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.
 

Note: See Annex D.2 for information on generators

1.3 Terminology 

In this Standard, “shall” is used to express a requirement, i.e., a provision that the user is obliged to satisfy 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.

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.

Notes to tables and figures are considered part of the table or figure and may be written as requirements.

Annexes are designated normative (mandatory) or informative (nonmandatory) to define their application.

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