To Next Page

To Previous Page

9. Operating voltage

PLM+ SERIES Quick Start Guide rev 3.0.2

9.1. Low voltage country considerations

Although the PLM+ Series has a wide range of operating mains voltage, some considerations can be applicable

for low voltage regions. PLM+ performs well throughout the speciﬁ ed nominal voltage range but has slightly better

efﬁ ciency at higher voltages. For regions with nominal voltage below 140 V, one could consider connecting the

ampliﬁ er in a three-phase delta or two phase split-phase conﬁ guration.

Note: Following connections applicable only for resulting voltage inside the ampliﬁ ers nominal

voltage range.

Connecting the ampliﬁ er in three phase delta conﬁ guration

In three-phase conﬁ guration where the phases are 120 degrees apart, one can connect three balanced loads in a

delta conﬁ guration. The connection is made between the phases instead of between the neutral and a phase.

Three phase delta conﬁ guration

Amp

120V

Amp

N N

Amp

3 phase Y 120V

3 phase delta 208V

208V

L1 L2

Connecting the ampliﬁ er in a split phase conﬁ guration

In two phase split-phase conﬁ guration there are two phases separated by 180 degrees. Connecting between the

phases gives double the line voltage.

Two phase split-phase conﬁ guration

Split phase 100V

100V 100V 200V

Amp

L2N

Amp

Split phase 200V

L1 L2

Amp

Lab.gruppen PLM 12K44 Quick Start Guide

Other manuals for Lab.gruppen PLM 12K44