Winco PSS12000, Installation And Operator'S Manual, Page: 4 / 29

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TESTING POLICY:
Before any generator is shipped from the factory, it is fully
checked for performance. The generator is loaded to
its full capacity, and the voltage, current, and fre-
quency are carefully checked.
Rated output of generators is based on engineering tests
of typical units, and is subject to, and limited by, the
temperature, altitude, fuel, and other conditions
specified by the manufacturer of the applicable
engines.
INTRODUCTION AND DESCRIPTION
The package standby system includes all items necessary
for a completely automatic standby power system as
standard equipment.
DESCRIPTION
This packaged standby system is designed to automati-
cally provide standby power to unattended loads
during electrical outages. Upon an interruption of
normal electrical service the packaged standby
systems electrical control circuits will automatically
start the engine. The generator will produce electrical
power and the Automatic Transfer Switch (A.T.S.) will
automatically transfer the electrical loads to the
engine-generator set. Upon restoration of normal
electrical service the emergency transfer switch will
sense return of the normal commercial power. The
Automatic Transfer Switch will retransfer the load back
to normal commercial power source. The engine
control circuits will begin a cool-down cycle, after
which the fuel supply will be shut off and the engine
ignition system disabled.
These packaged standby systems consist of two major
components:
1) AUTOMATIC TRANSFER SWITCH
A wall mounted Automatic Transfer Switch (A.T.S.)
designed for inside installation. The A.T.S. consists of
a line side contactor and a generator side contactor.
The contactors are both electrically and mechanically
interlocked. An automatic taper battery trickle charger
(40 MA max.) and a seven day electronic exerciser
clock are installed in the A.T.S. as standard equip-
ment. The A.T.S. also contains the power failure
sensing circuitry necessary to send a start/stop signal
to the engine generator set.
Standard Automatic Transfer Switch Sizes
UNIT LINE SIDE GENERATOR
CONTACTOR SIDE CONTACTOR
PSS8000 100 AMPS 50 AMPS
PSS12000 100 AMPS 100 AMPS
PSS20000 225 AMPS 100 AMPS
Optional A.T.S. sizes are available to meet specific needs.
If you need a switch of a different size contact WINCO,
Inc.
2) ENGINE/GENERATOR
PSS8000 - The engine generator set consists of a Briggs
& Stratton Vanguard, two cylinder, air cooled engine
equipped to run on L.P. or N.G. fuel. The engine
operates at 3600 rpm and frequency regulation is
maintained by the engine governor within 4 cycles
variation (62.5 Hz - 58.5 Hz) from no load to rated
load. The 8000 watt (8kW) generator is a brushless,
single bearing, direct drive, rotating field design. The
generator is connected to the engine’s tapered (quill)
crankshaft extension. The engine generator is
mounted in a NEMA 3R enclosure for outside installa-
tion. Connection boxes are provided for all customer
connections (both AC output and DC control). A
customer supplied 235 CCA (BCI group U1) battery is
required to complete the installation. Engine operation
is controlled by an Electronic Engine Control Module
(E.C.M.) mounted in the engine generator enclosure.
The E.C.M. is equipped standard with a 10 second
start delay, 90 second cool down delay and cycle
cranking.
PSS12000 - The engine generator set consists of a Onan
Performer, two cylinder, air cooled engine equipped to
run on L.P. or N.G. fuel. The engine operates at 3600
rpm and frequency regulation is maintained by the
engine governor within 4 cycles variation (62.5 Hz -
58.5 Hz) from no load to rated load. The 12000 watt
(12kW) generator is a single bearing, direct drive,
rotating armature design with external voltage regula-
tion. The generator is connected to the engine’s
tapered (quill) crankshaft extension. The engine
generator is mounted in a NEMA 3R enclosure for
outside installation. Connection boxes are provided
for all customer connections (both AC output and DC
control). A customer supplied 450 CCA (BCI group 26/
70) battery is required to complete the installation.
Engine operation is controlled by an Electronic Engine
Control Module (E.C.M.) mounted in the engine
generator enclosure. The E.C.M. is equipped stan-
dard with a 10 second start delay, 90 second cool
down delay and cycle cranking.
PSS20000 - The engine generator set consists of a Ford
Industrial, four cylinder, water cooled engine equipped
to run on L.P. or N.G. fuel. The engine operates at
3600 rpm and frequency regulation is maintained at
60Hz, by an electronic governor mounted on the
engine. The 20,000 watt (20kW) generator is a single
bearing, direct drive, rotating armature design. The
generator is connected to the engine flywheel via a
flexible drive disk. The engine generator is mounted in
a water tight enclosure for outside installation. Con-
nection boxes are provided for all customer connec-
tions (both AC output and DC control). A customer
supplied 500 CCA (BCI group 24) battery is required to
complete the installation. Engine operation is con-
trolled by an Electronic Engine Control Module
(E.C.M.) mounted in the engine generator enclosure.
The E.C.M. is equipped standard with a 10 second
start delay, 3 minute cool down delay and cycle
cranking consisting of five, 12 second on/12 second off
cycles.