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CONNECTING THE LOADS
APPLYING THE LOADS
Allow the engine to warm up for two or three minutes
before applying any load. This will allow the engine to
reach normal operating temperature and oil to circulate
throughout the engine. A shot warm-up time will permit
the engine to work more efficiently when the load is
applied and will reduce the wear in the engine, extending
its life.
Receptacles have been provided to allow loads to be
connected to the generator. The loads should be added
one at a time. If a large motor is being started: or multiple
motors are being started, they should be started individually
and the largest should be started first.
CAUTION: EQUIPMENT OVERLOAD
Keep the generator load within in the generator and
receptacle nameplate rating. Overloading may cause
damage to the generator and/or the loads.
Most electric tools and appliances will have the voltage and
amperage requirements on their individual nameplates.
When in doubt, consult the manufacturer or a local
electrician. The nameplate amperage rating for electric
motors can be misleading. See “Starting Electric Motors” in
the Unit Capabilities.
These engine-generator sets are inherently self regulating
based on engine speed. The engine governor will
automatically adjust itself to the load. No harm to
the generator will result if it is operated with no load
connected. Proper utilization of the receptacles located on
the control panel is necessary to prevent damage to either
the receptacles or the generator. The generator is a limited
source of electrical power, therefore, pay special attention
to the receptacle and generator ratings. The nameplate
rating can be obtained through a single receptacle as long
as the receptacles amperage rating is not exceeded.
GROUNDING
Proper grounding of your generator is application
dependent. Carefully evaluate your planned use of your
generator to understand which grounding you require.
If you are not sure what to do, contact a competent
professional to assist you. The NFPA 70 250:34-35 are good
technical references.
STANDARD PORTABLE GENERATOR
Your WINCO portable generator ships with a bonded
neutral. You can safely use this generator without external
grounding as long as all loads are powered through the
receptacle panel.
VEHICLE-MOUNTED GENERATOR
Your WINCO portable generator ships with a bonded
neutral. When mounted to a vehicle to safely distribute
power it is necessary that the generator frame is bonded
to the vehicle frame. The generator should only supply
equipment that is cord and plug connected through
receptacles mounted on the generator or the vehicle.
PERMANENTLY INSTALLED GENERATORS
This WINCO portable generator ships with a bonded
neutral and overcurrent protection. NFPA 70 refers to this
as a “separately derived system.” When connecting it to a
building a transfer switch specifically designed for GFCI and
bonded neutral generators is required.
WIRING
Plug your tools such as drills, saws, blowers, sump pump,
and other items to be powered directly into the generator
receptacles. Before plugging in all the tools and cord
sets, recheck the rating of the generator set. Be sure it
can handle the intended load and is compatible with the
voltage, phase, and current ratings. ‘Hard wiring’ this unit
directly into a temporary construction site electrical system is
NOT A SIMPLE DO-IT-YOURSELF JOB.
For your safety, all
wiring must be done by a qualified electrician and conform
to the National Electric Code and comply with all state and
local codes and regulations. Check with local authorities
before proceeding.
WARNING: PERSONAL DANGER
A fully isolated, double pole double throw manual
transfer switch must be installed any time a generator is
being connected to an existing distribution system.
1. These engine-generator sets are designed for
portable residential and light commercial use.
Receptacles are provided on the control panel to
permit 120 and 240 Volt portable appliances and
tools to be plugged directly into them. Please note
that the 3-wire 240 Volt receptacle(s) on these units
are designed to power only 240 Volt tools. There
are two hot leads and a ground wire, but no neutral
connection, in the 3-wire 240 Volt receptacle.
A 4-wire receptacle (two hot, one ground, and
one neutral) has been provided on the control panel
for use in temporary power applications requiring
120/240 Volt power. Consult a licensed electrician for
wiring the TemPower plug and connecting it as
temporary service.
To connect these units directly to an un-powered,
isolated construction site TemPower panel, have your
electrician connect to the control panel using a
120/240 Volt, 4-wire twist-lock plug (L14-30).
2. If the generator set is connected to an existing
distribution system, a fully isolated manual transfer
switch must be installed. The transfer switch prevents
damage to the generator and the other circuit
components if main line power is restored while the
generator is connected. Installing a transfer switch
also permits the use of normal fusing.
3. Many homes and construction sites are wired for at
least 60 to 100 Amp entrance service, much greater
than the capacity of this portable generator. When
installing the generator at these sites, a secondary
emergency distribution panel may have to be
installed. The emergency distribution panel must be
installed by a licensed electrician according to all