Trace Engineering DR Series User Manual

Trace Engineering DR Series Owner’s Manual - Version 3.2 - 9/7/98 - Page 42
Power vs. Efficiency
There are two primary types of losses that combine to create the efficiency curve. The first is the
energy that is required to operate the inverter at full output voltage while delivering no current. This is
the idle power. At low power levels it is the largest contributor to efficiency losses.
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Efficiency
AC Load Watts
SW4024
SW4048
Figure 10, Power Output vs. Efficiency
The second and largest source of loss is a result of the resistance in the transformer and power
devices. The power lost here is proportional to the square of the output power. For Example, losses at
2000 watts will be four times higher than losses at 1000 watts.
This graph above represents the inverter’s efficiency while operating resistive loads. Inductive
loads such as motors are run less efficiently due to the impact of power factor losses.
DR1524
DR1512
DR2424
DR2412
DR3624

Trace Engineering DR Series Specifications

General

Brand	Trace Engineering
Model	DR Series
Category	Inverter
Language	English