Generator Capacity - Briggs & Stratton PowerBoss 030628 Manuel De L'opérateur

Generator Capacity

To make sure your generator can supply enough
running watts and starting watts for the items you will
power at the same time, follow these simple steps:
1. Select the items you will power at the same time.
See following list for typical wattages.
Tool or Appliance
Light Bulb - 75 Watt
Sump Pump
Refrigerator/Freezer
Water Well Pump - 1/3 HP
Window AC - 10,000 BTU
Furnace Fan Blower - 1/2 HP
Microwave Oven - 1000 Watt
Color Television - 42"
Personal Computer w/17" monitor
Garage Door Opener - 1/2 HP
* Typical wattages listed are approximate only. Check
tool or appliance for actual wattage.
** Per Briggs & Stratton 628K, Starting Watts
represents the momentary electrical current the
generator can provide to start electric motors.
Starting Watts does not represent the power
required to continuously run electrical loads.
Starting Watts is the maximum current that can
momentarily be supplied when starting a motor,
multiplied by the generator's rated voltage.
2. Total the running watts. This is the amount of
power your generator must produce to keep your
items running. See following example:
Example
Tool or Appliance Running Watts
Window air conditioner
Refrigerator
Television
Light (75 Watts)
Running Watts
Total running watts
Highest starting watts
Total generator watts required
3. Estimate the starting watts you will need. Because
not all motors start at the same time, total starting
wattage can be estimated by adding only the
item with the highest additional starting watts
requirements to the total running watts from step 2.
Running Starting
Watts* Watts**
75 -
800 1200
800 2000
1000 2000
1200 1800
800 1300
1000 -
280 -
800 -
480 520
Starting Watts
1200 1800
800 2000
280 —
75 —
2355 Total 2000 Highest
Starting Watts
= 2355
= 2000
= 4355
Power Management
To manage generator power, sequentially add loads as
follows:
1. With nothing connected to generator, start the
engine outdoors.
2. Plug in and turn on the first load, preferably the
largest load you have.
3. Permit the generator output to stabilize (engine
runs smoothly and attached device operates
properly).
4. Plug in and turn on the next load.
5. Again, permit the generator to stabilize.
6. Repeat steps 4 and 5 for each additional load.
Never add more loads than the generator capacity.
Take special care to consider surge loads in generator
capacity.
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