Electrical – Ryobi RYI2200 User Manual

Page 12

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8 — English

ELECTRICAL

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.

Example:

Tool or Appliance

Running

Watts*

Additional

Starting Watts*

Refrigerator

700

1350

Portable Fan

40

120

Laptop

250

250

46 in. Flat Panel
Television

190

190

Light (75 Watts)

75

75

1255 Total

Running Watts

1350 Highest

Starting Watts

Total Running Watts

1255

Highest Starting Watts + 1350

Total Starting Watts Needed

2605

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.)

Running Watts

Watts Required to Start Motor

Universal

Capacitor

Split Phase

1/8

275

N/A

850

1200

1/6

275

600

850

2050

1/4

400

800

1050

2400

1/3

450

950

1350

2700

1/2

600

1000

1800

3600

3/4

850

1200

2600

1

1100

N/A

3300

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.

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