Kyoritsu 4140 User Manual download pdf (Page 24)

8. Phase Rotation Tests

1.OperatethePowerswitchandturnontheinstrument.Pressthe

PHASEROTATIONfunctionswitch.

2.InserttheTestLeadsintotheinstrument.(Fig.8-1)

Fig.8-1

3.Connecteachtestleadstoacircuit.(Fig.8-2)

Fig8-2

4.Resultsaredisplayedasfollows.

CorrectphasesequenceReversedphasesequence

Fig.8-3

Fig.8-4

●Whenamessage“no”or“---”isdisplayed,thecircuitmay

not be a 3-phase system or a wrong connection may have been

made.Checkthecircuitandtheconnection.

●Presence of Harmonics in measurement voltages, such as an

inverter power supply, may influence the measured results.

1 2 ... 19 20 21 22 23 24 25 26 27 28 29 30 31 32

No comments

Kyoritsu 4140 User Manual Page 24