Bryant ASPAS1BBL040 Application & Engineering Data, Generator Specifications, Generator Features

APPLICATION & ENGINEERING DATA Home Standby - 40

GENERATOR SPECIFICATIONS

TYPE	Four-pole, revolving field
ROTOR INSULATION	Class F
STATOR INSULATION	Class H
TOTAL HARMONIC DISTORTION (line to line)	.................................... <3%
TELEPHONE INTERFERENCE FACTOR (TIF)	..................................... <50
ALTERNATOR	Self-ventilated and drip-proof
BEARINGS (PRE-LUBED & SEALED)	1
COUPLING	Direct, Flexible Disc
LOAD CAPACITY (STANDBY)	100%
LOAD CAPACITY (PRIME)	110%

NOTE: Emergency loading in compliance with NFPA 99, NFPA 110, paragraph 5-13.2.6. Generator rating and performance in accordance with ISO8528-5, BS5514, SAE J1349, ISO3046, and DIN6271 standards.

EXCITATION SYSTEM
DIRECT	DC excitation system	>
	Low-velocity brushes and slip rings	>
VOLTAGE REGULATION	Solid-state	>
	±1% regulation	>

GENERATOR FEATURES

ˆFour pole, revolving field generator, directly connected to the engine shaft through a heavy-duty, flexible disc for permanent alignment.

ˆGenerator meets temperature rise standards for class “F” insulation as defined by NEMA MG1-22.4 and NEMA MG 1-1.65.

ˆStator windings are “trickle” varnished and rotor windings are “roll-dipped” for complete impregnation.

ˆUnit tested for motor starting ability by measuring instantaneous voltage dip with an oscillograph.

ˆAll models utilize an advanced wire harness design for reliable interconnection within the circuitry.

ˆMagnetic circuit, including amortisseur windings, tooth and skewed stator design, provides a minimal level of waveform distortion and an electromagnetic interference level which meets accepted requirements for standard AM radio, TV, and marine radio telephone applications.

ˆVoltage waveform deviation, total harmonic content of the AC waveform, and balanced T.I.F. (Telephone Influence Factor) have been evaluated to acceptable standards in accordance with NEMA MG1-22.

ˆAlternator is of drip-proof guarded construction.

ˆFully life-tested protective systems, including “field circuit and thermal overload protection” and standard main line circuit breakers capable of handling full output capacity.

ˆSystem torsional acceptability confirmed during prototype testing.

ENGINE SPECIFICATIONS

MODEL		3.9GN
CYLINDERS		V-6
DISPLACEMENT	3.9 Liter (238 cu. in.)
BORE	99.3 mm (3.91 in.)
STROKE	84 mm (3.31 in.)
COMPRESSION RATIO		9:1:1
INTAKE AIR	Naturally Aspirated
NUMBER OF MAIN BEARINGS		4
CONNECTING RODS	6-Drop forged steel
CYLINDER HEAD		Cast Iron
PISTONS	6-Notched Head, Aluminum Alloy
CRANKSHAFT		Nodular Steel
VALVE TRAIN
LIFTER TYPE		Hydraulic Roller
INTAKE VALVE MATERIAL	Aluminized Steel Faced
EXHAUST VALVE MATERIAL		Stellite Faced
HARDENED VALVE SEATS		No
ENGINE GOVERNOR
ˆ ELECTRONIC		Standard
FREQUENCY REGULATION, NO-LOAD TO FULL LOAD		............ 0.5%
STEADY STATE REGULATION		±0.25%
LUBRICATION SYSTEM
TYPE OF OIL PUMP		Gear
OIL FILTER	Full flow, cartridge
CRANKCASE CAPACITY	4.25 Liters (4.5 qts.)
COOLING SYSTEM
TYPE OF SYSTEM	Pressurized, closed recovery
WATER PUMP	Pre-lubed, self-sealing
TYPE OF FAN		Pusher
NUMBER OF FAN BLADES		10
DIAMETER OF FAN		559 mm (22 in.)
FUEL SYSTEM
FUEL
ˆ Natural Gas or L.P. Vapor		Standard
CARBURETOR		Down draft
SECONDARY FUEL REGULATOR	Nat. Gas or L.P. Vapor Systems
AUTOMATIC FUEL LOCKOFF SOLENOID	...................................	Standard

OPERATING FUEL PRESSURE VAPOR SYSTEMS	..Nat. Gas 5 to 14” H2O
LP Vapor.....11” to 14” H2O
ELECTRICAL SYSTEM
BATTERY CHARGE ALTERNATOR	20 Amps at 12 V
STARTER MOTOR	12 V
RECOMMENDED BATTERY	(1) - 12 V, 90 A.H., 27F
GROUND POLARITY	Negative

Rating definitions - Standby: Applicable for supplying emergency power for the duration of the utility power outage. No overload capability is available for this rating. (All ratings in accordance with BS5514, ISO3046 and DIN6271).