Appendix C - Power Consumption & Output Waveforms; Table C-1, Typical Appliance Power Consumption; Figure C-1, Ac Waveforms - Sensata Magnum-Dimensions MagnaSine MS-G Series Owner's Manual

Appendix C – Power Consumption & Output Waveforms
C-1 Appliances and Run Time
The MS-G Series inverter/charger can power a wide range of household appliances including small
motors, hair dryers, clocks, and other electrical devices. As with any appliance using batteries for
power, there is a certain length of time that it can run – this is called "run time." Actual run time
depends on several variables including the size and the type of appliance, the type of batteries
installed in your application, as well as the battery's capacity and age. Other factors such as the
battery's state of charge and temperature can also affect the length of time your appliances can run.
Appliances (TVs, VCRs, stereos, computers, coffee pots, incandescent lights, and toasters) can all
be successfully powered by your inverter. Larger electrical appliances, however, such as stoves,
water heaters, etc., can quickly drain your batteries and are not recommended for this application.
All electrical appliances are rated by the amount of power they consume (see Table C-1). The
rating is printed on the product's nameplate label, usually located on its chassis near the AC
power cord. Even though it is diffi cult to calculate exactly how long an inverter will run a particular
appliance, the best advice is trial and error. Your MS-G Series inverter has a built-in safeguard
that automatically protects your batteries from over-discharge.
Info: For optimum performance, a minimum battery bank of 200 AH is recommended
for moderate loads (<1000W) and greater than 400 AH for heavy loads (≥1000W).

Table C-1, Typical Appliance Power Consumption

Device Load
Blender 400W
Computer 300W
Drill 500W
Hot Plate 1800W
C-2 Output Waveform
The inverter's output waveform is the shape of the wave that alternating current makes as its
voltage rises and falls with time (see Figure C-1 below). The three basic output waveforms are:
• Modifi ed Sine Wave – Also referred to
as a "quasi sine wave" or a "modifi ed
square wave". This output looks like a
one-step staircase and the waveform
changes its width
provide the correct RMS output voltage
regardless of the battery voltage. Most
loads that run from a sine wave will
also run from a modifi ed sine wave.
However, things such as clocks and
furnace controllers may have trouble.
• Sine Wave – An AC waveform that
looks like rolling waves on water. It rises
and falls smoothly with time. The grid
puts out a sine waveform. Any plug-in
AC equipment will operate from a sine
wave output inverter.
• Square Wave – The simplest AC
waveform. Some types of equipment
behave strangely when powered from a
square wave inverter.
© 2015 Sensata Technologies
Appendix C – Power Consumption & Output Waveforms
Device
Coffee Maker
Color TV
Hair Dryer
Iron
to continually
Load
1200W Light (Flo)
150W Light (Inc)
1000W Microwave
1000W Refrigerator
200
160
120
80
40
0
40
80
120
160
200

Figure C-1, AC Waveforms

Device Load
10W
100W
1000W
500W
Square Wave
Sine Wave
Modified
Sine Wave
TIME
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