Technical information

21
Installation
The following examples show AC power connections for single phase and three phase FX
drives. These examples are shown for reference only. Local electrical codes should be
consulted before installation.
Figure 13: Earth Ground WYE Distribution Transformer
Figure 14: Earth Grounded Delta Distribution Transformer
L3
L1
L2
EARTH
GROUND
230 VAC
SECONDARY
PRIMARY
EARTH
GROUND
DISTRIBUTION PANEL
(3 PHASE APP. ONLY)
BY GROUNDING THE
CENTER POINT OF
THE WYE
DISTRIBUTION
TRANSFORMER, THE
PHASE-PHASE
VOLTAGE IS 230 VAC
AND THE VOLTAGE
PHASE-EARTH
GROUND IS LIMITED
TO APPROXIMATLY
115 VAC. THUS ALL
THE VOLTAGES ARE
LESS THAN 264 VAC.
*
*
L3
L1
L2
EARTH
GROUND
230 VAC
SECONDARY
PRIMARY
EARTH
GROUND
DISTRIBUTION PANEL
(3 PHASE APP. ONLY)