Electric Motor Loads; Generator Capacity - Ryobi RYi2200 Operator's Manual

ELECTRIC MOTOR LOADS

It is characteristic of common electric motors in normal operation to draw up to six times their running current while starting.
This table may be used to estimate the watts required to start electric motors; however, if an electric motor fails to start or
reach running speed, turn off the appliance or tool immediately to avoid equipment damage. Always check the requirements
of the tool or appliance being used compared to the rated output of the generator.
Motor Size (H.P.)
1/8
1/6
1/4
1/3
1/2
3/4
1
NOTICE:
Operating voltage and frequency requirement of all electronic equipment should be checked prior to plugging them
into this generator. Damage may result if the equipment is not designed to operate within a +/- 10% voltage variation,
and +/- 3 hz frequency variation from the generator name plate ratings. To avoid damage, always have an additional
load plugged into the generator if solid state equipment (such as a television set) is used. A power line conditioner is
recommended for some solid state applications.

GENERATOR CAPACITY

Make sure the generator can supply enough continuous (run-
ning) and surge (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.
2. Total the continuous (running) watts of these items. This
is the amount of power the generator must produce to
keep the items running. See the wattage reference chart
at right.
3. Estimate how many surge (starting) watts you will need.
Surge wattage is the short burst of power needed to
start electric motor-driven tools or appliances such as a
circular saw or refrigerator. Because not all motors start
at the same time, total surge watts can be estimated by
adding only the item(s) with the highest additional surge
watts to the total rated watts from step 2.
ELECTRICAL
Running Watts
275
275
400
450
600
850
1100
Watts Required to Start Motor
Universal
N/A
600
800
950
1000
1200
N/A
Example:
Tool or Appliance
Refrigerator
Portable Fan
Laptop
46 in. Flat Panel
Television
Light (75 Watts)
8 — English
Capacitor
850
850
1050
1350
1800
2600
3300
Running
Watts*
700
40
250
190
75
1255 Total
Running Watts
Total Running Watts
Highest Starting Watts
Total Starting Watts Needed
Split Phase
1200
2050
2400
2700
3600
—
—
Additional
Starting Watts*
1350
120
250
190
75
1350 Highest
Starting Watts
1255
+ 1350
2605