1198:
53:
at the normal voltage the current through the windings would be high enough to rapidly overheat and damage them. The test may still be conducted at full voltage if it is brief enough to avoid overheating the windings or overloading the starting circuits, but requires much more care to be taken while performing the test. The
52:
of the motor can be found. It is very important to know a motor's starting torque since if it is not enough to overcome the initial friction of its intended load then it will remain stationary while drawing an excessive current and rapidly overheat. The test may be conducted at lower voltage because
139:
the rated frequency as recommended by IEEE, because the rotor's effective resistance at low frequency may differ at high frequency. The test can be repeated for different values of voltage to ensure the values obtained are consistent. As the current through the stator may exceed the rated current,
675:
546:
1012:
866:
938:
321:
613:
792:
453:
706:
607:
579:
416:
385:
238:
734:
354:
208:
181:
137:
109:
258:
1179:
61:
because the starting torque of these wound-rotor motors depend upon the external resistance added. However, it may still be used to characterise the motor.
1537:
1281:
459:
1162:
29:
1247:
1102:
1717:
1121:
944:
1274:
81:
in the stator winding, and the current, voltage and power input are measured at that point. When the rotor is stationary, the
1666:
1076:
1055:
797:
670:{\displaystyle Z_{01}={\frac {\text{short-circuit voltage per phase}}{\text{short-circuit current}}}={\frac {V_{S}}{I_{S}}}}
872:
263:
1451:
1183:
1925:
1799:
1809:
1522:
1495:
1237:
1092:
1819:
1814:
1267:
1894:
1512:
1490:
1763:
1617:
1864:
1804:
1355:
1627:
1532:
1461:
1758:
1622:
1360:
1340:
1320:
1206:
741:
33:
1139:
1753:
1646:
1395:
1370:
45:
1859:
1562:
1557:
1302:
422:
1884:
1778:
1671:
1641:
1595:
1418:
1405:
25:
32:
of a transformer short-circuit test), locked rotor test or stalled torque test. From this test,
1844:
1794:
1748:
1676:
1468:
1456:
1446:
1243:
1158:
1098:
1072:
1051:
1022:
78:
58:
1899:
1889:
1834:
1829:
1773:
1743:
1691:
1587:
1577:
1567:
1517:
1380:
1350:
1290:
681:
585:
557:
391:
360:
213:
140:
the test should be conducted quickly. By using the parameters found by this test, the motor
70:
712:
332:
186:
159:
1874:
1824:
1686:
1507:
1485:
1473:
1441:
1345:
1219:
1182:. Department of Electrical and Computer engineering, University of Alberta. Archived from
21:
1849:
114:
88:
1869:
1768:
1738:
1600:
1552:
1500:
1428:
1365:
1308:
1027:
243:
141:
1125:
1919:
1879:
1547:
82:
73:
is locked securely enough that it cannot break free. A low voltage is applied on the
1904:
1839:
1527:
41:
1681:
1612:
1572:
1542:
1413:
1375:
1854:
1607:
1385:
1636:
1480:
1436:
541:{\displaystyle cos\phi _{S}={\frac {W_{S}}{{\sqrt {3}}{V_{SL}}{I_{SL}}}}}
1712:
1707:
37:
1390:
1314:
1157:(Twenty third revised multicolour ed.). S. Chand. p. 1317.
74:
49:
1259:
1263:
1007:{\displaystyle X_{01}={\sqrt {{Z_{01}}^{2}-{R_{01}^{2}}}}}
609:
is the leakage reactance per phase as referred to stator
1116:
1114:
1124:. Electronic Systems of Wisconsin, Inc. Archived from
1094:
861:{\displaystyle W_{cu}={3}\times {{I_{S}}^{2}{R_{01}}}}
947:
933:{\displaystyle R_{01}={\frac {W_{cu}}{3{I_{S}}^{2}}}}
875:
800:
744:
715:
684:
616:
588:
560:
462:
425:
394:
363:
335:
316:{\displaystyle I_{SN}=I_{S}\times {\frac {V}{V_{S}}}}
266:
246:
216:
189:
162:
117:
91:
1538:
Dual-rotor permanent magnet induction motor (DRPMIM)
581:
is the short-circuit impedance as referred to stator
1787:
1726:
1700:
1655:
1586:
1427:
1404:
1329:
1006:
932:
860:
786:
728:
700:
669:
601:
573:
540:
447:
410:
379:
348:
315:
252:
232:
202:
175:
131:
103:
240:is the short-circuit current at normal voltage
1275:
8:
1231:
1229:
1282:
1268:
1260:
995:
990:
985:
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921:
914:
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845:
839:
832:
827:
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805:
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778:
765:
749:
743:
720:
714:
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683:
659:
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621:
615:
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587:
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525:
520:
510:
505:
498:
491:
485:
476:
461:
439:
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399:
393:
368:
362:
356:is the total input power on short circuit
340:
334:
305:
296:
287:
271:
265:
245:
221:
215:
194:
188:
167:
161:
121:
116:
90:
183:is the short-circuit current at voltage
1050:, p. 6-7, Technical Publications, 2009
1039:
153:Short-circuit current at normal voltage
1215:
1204:
7:
1087:
1085:
418:is the line current on short circuit
387:is the line voltage on short circuit
1153:B.L. Theraja, A.K. Theraja (2010).
787:{\displaystyle W_{cu}=W_{S}-W_{c}}
14:
455:is the short-circuit power factor
1236:Deshpande, M.V. (30 May 2011).
633:short-circuit voltage per phase
69:In the blocked rotor test, the
1667:Timeline of the electric motor
1155:Electrical Technology volume 2
1:
1452:Dahlander pole changing motor
1071:, p. 254, PHI Learning, 2011
448:{\displaystyle cos\phi _{S}}
1496:Brushless DC electric motor
111:. The test is conducted at
77:terminals so that there is
1942:
1097:. Newnes. 8 October 2001.
326:Short-circuit power factor
1513:Switched reluctance (SRM)
1491:Brushed DC electric motor
1297:
1242:. PHI Learning Pvt. Ltd.
55:blocked rotor torque test
1701:Experimental, futuristic
1618:Variable-frequency drive
1048:Electrical Machines - II
1046:U.A.Bakshi, M.V.Bakshi,
708:is the total copper loss
44:on short circuit, total
1718:Superconducting machine
1356:Coil winding technology
1142:. Sakshat virtual labs.
1122:"Motor testing methods"
57:is less significant on
1214:Cite journal requires
1201:. Femco mining motors.
1008:
934:
862:
788:
730:
702:
701:{\displaystyle W_{cu}}
671:
603:
602:{\displaystyle X_{01}}
575:
574:{\displaystyle Z_{01}}
542:
449:
412:
411:{\displaystyle I_{SL}}
381:
380:{\displaystyle V_{SL}}
350:
317:
254:
234:
233:{\displaystyle I_{SN}}
204:
177:
133:
105:
30:the mechanical analogy
24:. It is also known as
1759:Power-to-weight ratio
1623:Direct torque control
1180:"Electrical Machines"
1009:
935:
863:
789:
731:
729:{\displaystyle W_{c}}
703:
672:
636:short-circuit current
604:
576:
543:
450:
413:
382:
351:
349:{\displaystyle W_{S}}
318:
255:
235:
205:
203:{\displaystyle V_{S}}
178:
176:{\displaystyle I_{S}}
148:Calculations involved
134:
106:
34:short-circuit current
1754:Open-loop controller
1647:Ward Leonard control
1371:DC injection braking
1199:"femco squirrel.doc"
1140:"Blocked rotor test"
945:
873:
798:
742:
713:
682:
614:
586:
558:
460:
423:
392:
361:
333:
264:
244:
214:
187:
160:
144:can be constructed.
115:
89:
1926:Electrical circuits
1657:History, education,
1303:Alternating current
1239:Electrical Machines
1069:Electrical Machines
1000:
132:{\displaystyle 1/4}
104:{\displaystyle s=1}
20:is conducted on an
1820:Dolivo-Dobrovolsky
1779:Voltage controller
1734:Blocked-rotor test
1672:Ball bearing motor
1642:Motor soft starter
1596:AC-to-AC converter
1457:Wound-rotor (WRIM)
1419:Electric generator
1004:
986:
930:
858:
784:
726:
698:
667:
599:
571:
538:
445:
408:
377:
346:
313:
250:
230:
200:
173:
129:
101:
59:wound-rotor motors
26:short-circuit test
18:blocked rotor test
1913:
1912:
1749:Open-circuit test
1588:Motor controllers
1469:Synchronous motor
1291:Electric machines
1178:Knight, Dr Andy.
1164:978-81-219-2437-5
1023:Open-circuit test
1002:
928:
736:is the core loss
665:
638:
637:
634:
551:Leakage reactance
536:
503:
311:
253:{\displaystyle V}
79:full load current
46:leakage reactance
1933:
1764:Two-phase system
1744:Electromagnetism
1692:Mouse mill motor
1659:recreational use
1533:Permanent magnet
1462:Linear induction
1315:Permanent magnet
1284:
1277:
1270:
1261:
1254:
1253:
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1168:
1150:
1144:
1143:
1136:
1130:
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1118:
1109:
1108:
1089:
1080:
1067:M.V. Deshpande,
1065:
1059:
1044:
1013:
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1010:
1005:
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902:
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724:
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417:
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125:
110:
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1941:
1940:
1936:
1935:
1934:
1932:
1931:
1930:
1916:
1915:
1914:
1909:
1783:
1722:
1696:
1687:Mendocino motor
1660:
1658:
1651:
1582:
1442:Induction motor
1423:
1400:
1346:Braking chopper
1334:
1332:
1325:
1293:
1288:
1258:
1257:
1250:
1235:
1234:
1227:
1213:
1203:
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1177:
1176:
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1138:
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1133:
1120:
1119:
1112:
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965:
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891:
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846:
828:
826:
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589:
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336:
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328:
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283:
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241:
217:
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210:
190:
185:
184:
163:
158:
157:
155:
150:
113:
112:
87:
86:
67:
50:starting torque
28:(because it is
22:induction motor
12:
11:
5:
1939:
1937:
1929:
1928:
1918:
1917:
1911:
1910:
1908:
1907:
1902:
1897:
1892:
1887:
1882:
1877:
1872:
1867:
1862:
1857:
1852:
1847:
1842:
1837:
1832:
1827:
1822:
1817:
1812:
1807:
1802:
1797:
1791:
1789:
1785:
1784:
1782:
1781:
1776:
1771:
1769:Inchworm motor
1766:
1761:
1756:
1751:
1746:
1741:
1739:Circle diagram
1736:
1730:
1728:
1727:Related topics
1724:
1723:
1721:
1720:
1715:
1710:
1704:
1702:
1698:
1697:
1695:
1694:
1689:
1684:
1679:
1677:Barlow's wheel
1674:
1669:
1663:
1661:
1656:
1653:
1652:
1650:
1649:
1644:
1639:
1634:
1633:
1632:
1631:
1630:
1628:Vector control
1625:
1610:
1605:
1604:
1603:
1601:Cycloconverter
1592:
1590:
1584:
1583:
1581:
1580:
1575:
1570:
1565:
1560:
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1383:
1378:
1373:
1368:
1366:Damper winding
1363:
1358:
1353:
1348:
1343:
1337:
1335:
1331:Components and
1330:
1327:
1326:
1324:
1323:
1317:
1311:
1309:Direct current
1305:
1298:
1295:
1294:
1289:
1287:
1286:
1279:
1272:
1264:
1256:
1255:
1248:
1225:
1216:|journal=
1189:
1186:on 2012-11-29.
1170:
1163:
1145:
1131:
1128:on 2012-12-31.
1110:
1103:
1081:
1060:
1038:
1037:
1035:
1032:
1031:
1030:
1028:Circle diagram
1025:
1018:
1015:
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989:
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154:
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142:circle diagram
128:
124:
120:
100:
97:
94:
66:
63:
38:normal voltage
13:
10:
9:
6:
4:
3:
2:
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1569:
1566:
1564:
1563:Piezoelectric
1561:
1559:
1558:Electrostatic
1556:
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1249:9788120340268
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42:power factor
17:
15:
1682:Lynch motor
1447:Shaded-pole
1333:accessories
1197:Pitis, CD.
1578:Axial flux
1568:Ultrasonic
1543:Servomotor
1523:Doubly fed
1518:Reluctance
1414:Alternator
1406:Generators
1376:Field coil
1361:Commutator
1321:commutated
1319:SC - Self-
1077:8120340264
1056:8184315236
1034:References
1895:Steinmetz
1810:Davenport
1608:Amplidyne
1508:Universal
1486:Homopolar
1474:Repulsion
1386:Slip ring
983:−
823:×
772:−
474:ϕ
437:ϕ
294:×
1920:Category
1900:Sturgeon
1830:Ferraris
1815:Davidson
1637:Metadyne
1553:Traction
1501:Unipolar
1481:DC motor
1437:AC motor
1341:Armature
1017:See also
1890:Sprague
1885:Siemens
1860:Maxwell
1825:Faraday
1774:Starter
1713:Railgun
1708:Coilgun
1548:Stepper
1396:Winding
1880:Saxton
1865:Ărsted
1850:Jedlik
1845:Jacobi
1835:Gramme
1800:Barlow
1788:People
1613:Drives
1528:Linear
1429:Motors
1391:Stator
1246:
1161:
1101:
1075:
1054:
75:stator
65:Method
48:, and
1905:Tesla
1875:Pixii
1840:Henry
1805:Botto
1795:Arago
1381:Rotor
1351:Brush
1313:PM -
1307:DC -
1301:AC -
71:rotor
1870:Park
1855:Lenz
1573:TEFC
1244:ISBN
1220:help
1159:ISBN
1099:ISBN
1073:ISBN
1052:ISBN
83:slip
36:at
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