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This is the second edition of CSA C392, Testing of three-phase squirrel cage induction motors during refurbishment. It supersedes the previous edition published in 2011.
Changes have been made throughout the standard. Test procedures have been reorganized for clarity. Requirements have been updated to reflect current capability of test equipment. Requirements for test procedures have been made mandatory. A new non-mandatory Annex has been added that describes a method to determine efficiency estimation based on no-load tests.
CSA Group acknowledges that the development of this Standard was made possible, in part, by the financial support of BC Hydro, Canadian Electricity Association (CEA), and Hydro Québec, Independent Electricity Service Operator (IESO), Manitoba Hydro, and Natural Resources Canada (NRCan).
This Standard has been developed in compliance with Standards Council of Canada requirements for National Standards of Canada. It has been published as a National Standard of Canada by CSA Group.
This Standard covers integral horsepower, three-phase, alternating current, squirrel cage induction motors rated up to 15 kV at 50/60 Hz. This Standard also covers inverter duty motors.
Note: This Standard may also be applied with discretion to products outside the scope of this Standard.
The values given in SI units are the units of record for the purposes of this Standard. The values given in parentheses are for information and comparison only.
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.
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 (non-mandatory) to define their application.