Winco PSS8B2W/A - Manual (Page 4)

PAGE 2 60706-164 4008-20
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 auto-
matically provide standby power to unattended loads
during electrical outages. Upon an interruption of normal
electrical service the packaged standby system 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 commer-
cial power. The Automatic Transfer Switch will retransfer
the load back to the 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.
Automatic Transfer Switch Sizes
(NON-UL)
UNIT LINE SIDE GENERATOR
CONTACTOR SIDE CONTACTOR
PSS8B2W 110 AMPS 60 AMPS
UL Automatic Transfer Switch Sizes
UNIT LINE SIDE GENERATOR
CONTACTOR SIDE CONTACTOR
PSS8B2W 100 AMPS 100 AMPS
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 dealer, or the
WINCO Sales Department for a quote.
2) ENGINE/GENERATOR
The engine generator set consists of a Briggs &
Stratton Vanguard, twin cylinder, four cycle air cooled
engine. The engine is factory equipped to run on L.P. or
N.G. fuel. The engine operates at 3600 rpm and fre-
quency regulation is maintained by the engine governor
within 4 cycles variation (62.5 Hz - 58.5 Hz) from no load
to rated load. The 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.
** NOTICE **
This unit will automatically transfer if a power outage
occurs while running in an exercise mode.
SPECIFICATIONS
GENERATOR
MODEL WATTS* VOLTS AMPS* HZ PH RPM
PSS8B2W 8,000 120/240 33.0 60 1 3600
*Derate 16% for Natural Gas operation. Derate 3.5%
per 1000 feet elevation above sea level.
FUEL CONSUMPTION
NG L.P. VAPOR
1000 BTU/CU FT 2520 BTU/CUFT
MODEL CF/HR BTU/HR #/HR* GAL/HR CF/HR BTU/HR*
PSS8B2W 132 132,000 6.7 1.6 63 158,760
*Based on full load operation