EN 60034-29:2008
Current
The latest, up-to-date edition.
Rotating electrical machines - Part 29: Equivalent loading and superposition techniques - Indirect testing to determine temperature rise
07-11-2008
FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Symbols and units
4 General test requirements
5 Superposition method
5.1 Basic principles
5.1.1 General
5.1.2 Temperature rise
5.1.3 Estimation of temperature rise from reduced
load tests
5.2 Induction motors
5.2.1 Applicable tests
5.2.2 Method of reduced voltage and rated current
5.2.3 Method of rated voltage and reduced current
5.2.4 Method combining tests at reduced voltage and
reduced current
5.3 Synchronous machines
5.3.1 Method of open circuit, short circuit, zero
excitation
5.3.2 Method of zero power factor and open circuit
loading
5.4 DC machines
6 Equivalent load method
6.1 Principles
6.1.1 General
6.1.2 Temperature rise
6.2 Induction motors
6.2.1 Forward short-circuit test
6.2.2 Modulated frequency method
6.2.3 DC injection
6.2.4 Mixed-frequency or bi-frequency method
6.3 Synchronous machines - Zero power factor
7 Preferred methods
Annex A (informative) Example calculation
Annex ZA (normative) Normative references to international
publications with their corresponding European
publications
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