2.3.2. Stepping Up Voltage
Alternative to Stacked Inverters.
Loads such as deep well water pumps and air conditioning units sometimes require Split-Phase 120/240Vac power.
When the available AC power source is not what is needed in the installation, the autotransformer can create the needed voltage
by doubling the incoming voltage.
The alternative to stacking two 120Vac inverters to provide a 120/240Vac Split-Phase is a single 120Vac inverter with an
additional autotransformer.
Other possible cases for stepping up the Voltage are shown in the wiring diagrams below.
Victron Energy Autotransformer
Page 4
Introduction
