Operation GPS 8500 / GPS 9700
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2. Operation
2.1 Application and Power Requirements
This generator is designed to operate single-phase, 60 Hz appliances
running at 120 and 240 VAC.
NOTICE: Do not exceed the continuous rated output of the generator.
Damage to tools or generator will occur. See Technical Data.
Check the nameplate or label provided on tools and appliances to
make sure their power requirements are met by the power output of the
generator. If the wattage is not given for a particular tool or appliance,
contact the tool manufacturer for wattage requirements.
Some appliances and tools require a surge of current when starting.
This means that the amount of power needed to initially start the
equipment is larger than the power required to keep it running. The
generator must be capable of supplying this "surge" current. Other
types of appliances require more power than is actually stated on their
nameplate.
The information in “Approximate Starting Power Requirements” is
offered only as a general guideline to help you determine power
requirements for different types of equipment. Check with your nearest
Wacker dealer, or contact the manufacturer or dealer of the tool or
appliance, if you have questions regarding power requirements.
Approximate Starting Power Requirements
• Incandescent lights and appliances such as irons and hot plates,
which use a resistive-type heating element, require the same wattage
to start and run as is stated on their nameplates.
• Fluorescent and mercury lamps require 1.2–2 times their stated watt-
age to start.
• Electrical motors and many types of electrical tools often require a
large starting current. The amount of starting current depends on the
type of motor and its use.
• Most electrical tools require 1.2–3 times their stated wattage for start-
ing.
• Loads such as submersible pumps and air compressors require a
very large force to start. They need as much as 3–5 times the wattage
stated on the nameplate in order to start.
If the wattage is not given for a particular tool or appliance, it can be
calculated by multiplying its voltage and amperage requirements:
Single Phase: VOLTS x AMPS = WATTS
Three Phase: VOLTS x AMPS x 1.732 x 0.8 = WATTS
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