BS EN 61986:2002
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Rotating electrical machines. Equivalent loading and super-position techniques. Indirect testing to determine temperature rise
Hardcopy , PDF
30-09-2008
English
04-04-2002
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1 Scope
2 Normative references
3 Symbols and units
4 General test requirements
5 Principle of superposition tests
5.1 General
5.2 Permissible temperature rise at superposition
tests
6 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 motors
7 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
loading
8 Superposition method for d.c. machines
9 Principle of equivalent load tests
9.1 General
9.2 Permissible temperature rise at equivalent
load tests
10 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 method
11 Equivalent load test for synchronous machines -
Zero power factor
Annex 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.
| Committee |
PEL/2
|
| DevelopmentNote |
Supersedes 97/209776 DC. Also numbered as IEC 61986. (05/2002)
|
| DocumentType |
Standard
|
| Pages |
28
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
Applies to machines covered by IEC 60034-1 when they cannot be loaded to a specific condition (rated or otherwise) for whatever reason. It is applicable to both motors and generators but the methods are not suitable for machines of and below 1 kW. Provides 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. The test methods in some cases provide, in addition, a means of measuring or estimating other parameters such as losses and vibration, but the methods are not designed specifically to provide such data.
| Standards | Relationship |
| NF EN 61986 : 2004 | Identical |
| DIN EN 61986 : 2002 | Identical |
| UNE-EN 61986:2003 | Identical |
| NBN EN 61986 : 2002 | Identical |
| EN 61986:2002 | Identical |
| I.S. EN 61986:2002 | Identical |
| EN 60034-1:2010/corrigendum Oct. 2010 | ROTATING ELECTRICAL MACHINES - PART 1: RATING AND PERFORMANCE |
| IEC 60034-1:2017 | Rotating electrical machines - Part 1: Rating and performance |
| IEC 60034-2:1972 | Rotating electrical machines. Part 2: Methods for determining losses and efficiency of rotating electrical machinery from tests (excluding machines for traction vehicles) |
| EN 60034-2:1996/A2:1996 | ROTATING ELECTRICAL MACHINES - PART 2: METHODS FOR DETERMINING LOSSES AND EFFICIENCY OF ROTATING ELECTRICAL MACHINERY FROM TESTS (EXCLUDING MACHINES FOR TRACTION VEHICLES) |
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