Theory Of Operation; Inverter - Sensata Dimensions 12LP15 Owner's Manual

THEORY OF OPERATION

Inverter

Usage: Any 120 VAC, 60 Hz single phase product within the inverter's power rating.
The inverter front "STATUS" LED will be Green while the inverter is on. The
AC power produced by the inverter comes from the energy stored in the battery
bank through a sophisticated electronic inversion process. A transformer, a
Metal Oxide Silicon Field Effect Transistors (MOSFET), a filter capacitor, and a
microprocessor are used to generate clean AC power.
The inverter will operate at DC input voltages ranging from 10.5Vdc to 16 Vdc.
Above 16 Vdc the inverter may stop operating due to input voltage being out of
range. The inverter can tolerate up to 24 Vdc for 5 minutes. Durations longer than
5 minutes will result in a shut down. Input voltages above 24Vdc will result in an
immediate shutdown. The inverter will restart when the input voltage drops below
16 Vdc. When the input voltage drops to the low battery volts, the inverter will stop
operating due to a low battery condition. When the lead acid battery bank voltage
drops to 10.5 volts, the battery is fully discharged.
Note: The signal output waveform produced by the inverter when in "inverter mode" is
pure sinusoidal. It has a total harmonic distortion of less than 5% at nominal
input.
The inverter output needs to be de-rated as the ambient temperature surrounding it
increases. See the following chart for operation at 12.6 Vdc.
12LPC15 TEMP DERATING at 12.6 Vdc
1500 W
1400 W
1300 W
1200 W
1100 W
1000 W
900 W
800 W
75°F
Figure 10 - Temp Derating
85°F 95°F
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