Inverter Specifications
A–8
976-0043-01-02
Power Versus Efficiency
There are two primary losses that combine to create the efficiency curve
of the
Sine Wave Plus
. The first is the energy that is required to operate
the inverter at full output voltage while delivering no current. This is the
no load or idle power.
At low power levels, the idle power is the largest contributor to efficiency
losses. At high power, the largest source of loss is a result of the resistance
in the transformer and power transistors. The power lost here is
proportional to the square of the output power.
For example, losses at 2,000 watts will be four times higher than losses at
1,000 watts. This graph represents a typical inverter's efficiency while
operating resistive loads. Inductive loads, such as motors, are run less
efficiently due to the impact of power factor losses.
The
Sine Wave Plus
offers an extremely good efficiency curve. The
inverter reaches high efficiency at very low AC load levels, which is
important because the inverter often spends the majority of the time at the
lower power range. The high efficiency is maintained over a wide power
range. Only when operating at high power levels at or above the
continuous power levels does the efficiency begin to drop off. Since this
usually only occurs for short periods of time, the impact may be
negligible.
If your application involves the inverter powering heavy loads for
significant periods of time, selecting a model with a higher continuous
power rating and a higher DC input voltage would improve the operation
of the system. Since the low power efficiency of the
Sine Wave Plus
is
extremely good, oversizing the inverter does not reduce system
performance.
Summary of Contents for SW Plus 2524
Page 2: ......
Page 3: ...Sine Wave Plus Inverter Charger Owner s Manual...
Page 82: ...2 48...
Page 105: ...DC Wiring 976 0043 01 02 3 23 Figure 3 13 DC Connections to a Single Inverter...
Page 107: ...DC Wiring 976 0043 01 02 3 25 Figure 3 14 DC Connections to Dual Inverters...
Page 126: ...3 44...
Page 132: ...4 6...
Page 141: ...Menu Map 976 0043 01 02 5 9 Figure 5 10 User Menu Map Part 2...
Page 143: ...Menu Map 976 0043 01 02 5 11 Figure 5 12 Basic Setup Menu Map Part 2...
Page 145: ...Menu Map 976 0043 01 02 5 13 Figure 5 14 Advanced Setup Menu Map Part 2...
Page 146: ...Navigation 5 14 976 0043 01 02 Figure 5 15 Complete User Menu Map...
Page 147: ...Menu Map 976 0043 01 02 5 15 Figure 5 16 Complete Basic Setup Menu Map...
Page 148: ...Navigation 5 16 976 0043 01 02 Figure 5 17 Complete Advanced Setup Menu Map...
Page 250: ...8 32...
Page 274: ...A 16...
Page 308: ...C 18...
Page 312: ...D 4...
Page 316: ...E 4...
Page 338: ...I 6...
Page 342: ...Index IX 4 976 0043 01 02...
Page 343: ......