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ROTATING ELECTRICAL MACHINES - EQUIVALENT LOADING AND SUPER-POSITION TECHNIQUES - INDIRECT TESTING TO DETERMINE TEMPERATURE RISE
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Superseded date: 01-09-2009
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Published date: 12-01-2013
Publisher: Belgian Standards
1 Scope2 Normative references3 Symbols and units4 General test requirements5 Principle of superposition tests 5.1 General 5.2 Permissible temperature rise at superposition tests6 Superposition methods for induction motors 6.1 Method of reduced voltage and rated current 6.2 Method of rated voltage and reduced current 6.3 Method for wound-rotor induction motors7 Superposition methods for synchronous machines 7.1 Method of open circuit, short circuit, zero excitation 7.2 Method of zero power factor and open circuit loading8 Superposition method for d.c. machines9 Principle of equivalent load tests 9.1 General 9.2 Permissible temperature rise at equivalent load tests10 Equivalent load tests for induction motors 10.1 Forward short-circuit test 10.2 Modulated frequency method 10.3 DC injection 10.4 Mixed-frequency or bi-frequency method11 Equivalent load test for synchronous machines - Zero power factorAnnex ZA (normative) Normative references to international publications with their corresponding European publications
Gives descriptions of various indirect load tests, the purpose of which is to determine the temperature rise of rotating electrical machines, including a.c. induction machines, a.c. synchronous machines and d.c. machines.
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