1 Scope
This standard specifies the test procedures for three-phase permanent magnet synchronous machines (machines are also known as motors).
This standard is applicable to self-starting three-phase permanent magnet synchronous machines. It may be referenced in the test of synchronous machines powered by static variable frequency power supply, but it is not applicable to the synchronous machine with DC excitation windings.
2 Normative references
The following normative documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated reference, subsequent amendments (excluding corrections) to, or revisions of, any of these publications do not apply. However, parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. For undated references, the latest edition applies.
GB 755-2008 Rotating electrical machines - Rating and performance (IEC 60034-1:2004, IDT)
GB/T 1029-2005 Test procedures for three-phase synchronous machines
GB/T 1032-2005 Test procedures for three-phase induction motors
GB 10068-2008 Mechanical vibration of certain machines with shaft heights 56mm and higher - Measurement evaluation and limits of vibration severity (IEC 60034-14:2003, IDT)
GB/T 10069.1-2006 Measurement of airborne noise emitted by rotating electrical machines and the noise limits - Part 1: Method for the measurement of airborne noise emitted by rotating electrical machines (ISO 1680:1999, MOD)
GB/T 13958-2008 Test procedures for non-direct current excitation winding synchronous motor
IEC 60034-2-1:2007 Standard methods for determining losses and efficiency from tests (excluding machines for traction vehicles)
3 Main symbols
cos φ——the power factor
f——the power supply frequency, Hz
Foreword i
1 Scope
2 Normative references
3 Main symbols
4 Test requirements
5 Test preparation
6 No-load test
7 Locked rotor test
8 Load test
9 Determination of all losses
10 Determination of efficiency
11 Thermal test
12 Determination of pull-out torque
13 Determination of pull-in torque
14 Determination of minimum torque
15 Other tests
16 Calculation format
Annex A (Normative) Dynamometer torque reading correction
Annex B (Informative) Linear regression analysis
Annex C (Informative) Calculation method for determination and detach of iron losses and friction and windage losses
Figure 1 Relation curve of no-load current I0 and no-load loss P0′ versus no-load voltage U0
Figure 2 Locked rotor characteristic curve (I)
Figure 3 Locked rotor characteristic curve (II)
Figure 4 Relation curve of speed versus time during no-load starting of motor
Figure 5 Torque-rotating speed characteristic curve T=f(n)
