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12
M.Barański,J.Kołowrotkiewicz
Fig.3.Laboratoryteststand(1–motor,2–torquetransducer,3–mechanicalsize
value,4–powernetworkanalyser)
Theconstructedteststand(seeFig.3)enablesrecordingofbasiccharacteristics
oftestedmotor.Thevaluesofstartingtorqueandthestatorcurrentshavebeen
measuredandrecorded.Thefirsttestwasperformedforthemachinewiththerotor
locked.ThestatorRMScurrentsweremeasuredasthevoltagewasincreasedtoits
ratedvalue.InFigs.4and5thetestresultsarecomparedwiththeresultsofcom-
putersimulations.
Ir[A]
40
35
30
25
20
15
10
5
0
0
50
100
pomiar
150
polowo
200
250
obwodowo
300
350
400
U[V]
Fig.4.ComparisonofRMScurrentsvs.RMSvoltagecharacteristicsforthemotor
withtherotorlocked
