Winco PSS20000/C - Manual (Page 4)

PAGE 2
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 frequency
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. A seven day electronic exerciser clock is
installed in the A.T.S. as standard equipment. The A.T.S.
also contains the power failure sensing circuitry neces-
sary to send a start/stop signal to the engine generator
set.
Standard Automatic Transfer Switch Sizes
(NON-UL)
UNIT LINE SIDE GENERATOR
CONTACTOR SIDE CONTACTOR
PSS8000 110 AMPS 60 AMPS
PSS12000 110 AMPS 60 AMPS
PSS20000 230 AMPS 150 AMPS
Optional UL Automatic Transfer Switch Sizes
UNIT LINE SIDE GENERATOR
CONTACTOR SIDE CONTACTOR
PSS8000 100 AMPS 100 AMPS
PSS12000 100 AMPS 100 AMPS
PSS20000 100 AMPS 100 AMPS
or 200 AMPS 200 AMPS
Both the 100 amps and the 200 amps UL Switches are
available in single and three phase.
Additional optional A.T.S. sizes are available to meet
specific needs. Contact your local WINCO Rep. or the
WINCO Sales Department for a quote.
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 installation. 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 Elec-
tronic 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 regulation. 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. Con-
nection 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 com-
plete 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.
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 60
Hz, by an electronic governor mounted on the engine.
The 20,000 watt (20kW) generator is a single bearing,