3. Warnings
21
D SERIES Lake Quick Start Guide rev 3.0.4
10. Grounding
NOTE: Following connections applicable only for resulting voltage inside the ampliÄ ers nominal voltage
range.
Connecting the ampliÄ er in three phase delta conÄ guration
In three-phase conÄ guration where the phases are 120 degrees apart, one can connect three balanced loads in a
delta conÄ guration. The connection is made between the phases instead of between the neutral and a phase.
Amp
120V
120V
120V
L1
Amp
L2
L3
Amp
N N
Amp
Amp
Amp
3 phase Y 120V
3 phase delta 208V
208V
208V
208V
L1 L2
L3
Three phase delta conÄ guration
Connecting the ampliÄ er in a split phase conÄ guration
In two phase split-phase conÄ guration there are two phases separated by 180 degrees. Connecting between the
phases gives double the line voltage.
Two phase split-phase conÄ guration
10. Grounding
D Series must be grounded (earthed) with the safety ground pin to the mains distribution system.
NEVER disconnect the earth (ground) pin on the mains cable (AC power cord).
Use correctly-shielded balanced audio input connections to minimize hum and interference.
Split phase 100V
100V 100V 200V
L1
Amp
L2N
Amp
Split phase 200V
L1 L2
N
Amp
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