SOUND ATTENUATED POWER MODULE
EPA and CARB Emissions Certified for non-road mobile applications.
CAT® DIESEL GENERATOR SETS
Factory designed, certified prototype tested with torsional analysis. Production tested and delivered to you in a package that is ready to be connected to your fuel and power lines. Electric Power Design Pro computer sizing available. Supported 100% by your Caterpillar dealer with warranty on parts and labor. Extended warranty available in some areas. The generator set was designed and manufactured in an ISO 9001 compliant facility. Generator set and components meet or exceed the following specifications: AS1359, AS2789, ABGSM TM3, BS4999, DIN6271, DIN6280, EGSA101P, JEM1359, IEC 34/1, ISO3046/1, ISO8528, NEMA MG1-22.
CATERPILLAR® SR4B GENERATOR
Single bearing, wye connected, static regulated, brushless permanent magnet excited generator designed to match the performance and output characteristics of the Caterpillar diesel engine that drives it.
RELIABLE, FUEL EFFICIENT DIESEL
The compact, four-stroke-cycle diesel engine combines durability with minimum weight while providing dependability and economy. The fuel system operates on a variety of fuels.
CATERPILLAR® COOLING SYSTEM
Sized compatible to rating with energy efficient fan and core.
Single unit or optional paralleling components. Circuit breakers, bus bars, and connection panel ready to connect.
EXCLUSIVE CATERPILLAR® VOLTAGE REGULATOR
Three-phase sensing and adjustable Volts-per-Hertz regulation give precise control, excellent block loading, and constant voltage in the normal operating range.
SOUND ATTENUATED ISO CONTAINER For ease of transportation and protection. Meets 70 dBA at 50 ft or below per SAE J1074
FACTORY INSTALLED STANDARD & OPTIONAL EQUIPMENT
System Standard Optional
Engine Air cleaner, with service indicator
Battery charger, heavy duty
Filters; fuel, RH with service indicators; lubricating oil
Fuel-water separator system
Pump, fuel priming RH Radiator
Standard jacket water heaters with service valves
2301A load share governor Fuel transfer system
Oil level makeup system
Special radiators for high or low ambients
Sump pump RH
Generator SR4B brushless, 480 volt, PM excited three-phase with digital voltage regulator, space heater Mil Std 461B, VDE 875 Level N Temperature rise detectors
Module Air intake louvers
Bus bar access door
Fuel tank w/gauge 2500 L (660 Gal) UL listed
Steel deck floor galvanized
24 VDC lighting
Sound attenuated (66 dBA @ 50 ft) Fuel transfer/double wall
110 VAC lighting
Bottom load cable access
Switchgear Generator mounted EMCP II
Automatic start/stop with cycle cranking and cooldown timer
Auxiliary power connections for jacket water heater, battery charger, space heaters
Battery charger, heavy duty 20A Circuit breaker, manually operated Connection terminals, 3-phase and neutral Synch lights and reverse power relay
CAT SR4B GENERATOR
Type ...... Static regulated brushless PM excited Construction ...... Single bearing, close coupled
Three-phase ........... Wye connected 6 lead
Insulation ........... Class H 2 extra dips and bakes on random wound units
Enclosure ........................... Drip proof Alignment ........................... Pilot shaft
Overspeed capability ..................... 130%
Voltage regulator .......... 3-phase sensing with Volts-per-Hertz
Voltage regulation .............. Less than ± .05%
Voltage gain ...... Adjustable to compensate for engine speed droop and line loss
Wave form .............. Less than 5% deviation
TIF................................ Less than 50
THD.............................. Less than 3%
CAT® 3412 ENGINE
V-12, 4-stroke-cycle diesel
Bore mm (in) ..................... 137.2 (5.4) Stroke mm (in) ..................... 152.4 (6)
Displacement L (cu in) .............. 27 (1649) Aspiration ............ Turbocharged-Aftercooled
60 Hz ekW Standby Prime
Engine and Container Information
Container size m (ft) Container dimensions
Fuel Capacity Hours of Operation at 60% Load Factor
2500 L (660 Gal) hours
Approximate Weight (Dry) Container with Generator Set
Including Container kg (lb) With Undercarriage kg (lb)
13 850 (30,500)
16 800 (37,000)
2 Doors Each Side
(Cable Storage Box)
The power module must have support under the center when set
Length 12192.0 mm 480.00 in Width 2438.4 mm 96.00 in Height 4115.0 mm 162.01 in
12 m (40 ft) CONTAINERS
ELECTRONIC MODULAR CONTROL PANEL (EMCP II) COMPONENTS
GENERATOR SET CONTROL (GSC)
Sequentially rotating, backlit LCD display of engine hours, engine rpm, DC battery voltage, oil pressure, and water temperature. Includes pushbutton to hold display on any single parameter.
Overspeed, overcrank, high water temperature, low oil pressure, and emergency stop. With LED indicator for each condition.
Low coolant level
Three-phase volts (L-L), amperes and frequency with phase select pushbutton, on backlit LCD. Metering accuracy is
Automatic starting with field adjustable cycle crank, failure to start (overcrank), and cooldown timer.
Programming and Diagnostics
Includes field programmable set-points for engine control and monitoring variables and self diagnosis of EMCP II system component and wiring failures.
Flashing LED warnings for: low coolant temperature, high coolant temperature (pre-alarm), low oil pressure (pre-alarm),
engine control switch not in automatic, and low DC voltage. Includes alarm horn and acknowledge pushbutton.
ENGINE CONTROL SWITCH
Snap action rotary switch, four-position off/reset, automatic, manual, stop/cooldown. Off/reset for engine shutdown and resetting faults, automatic for remote starting by customer contact closure, manual for local starting and manual paralleling, stop/cooldown for manual operation cooldown.
ALARM ACKNOWLEDGE/LAMP TEST SWITCH
Three-position, spring return to center switch for alarm acknowledge and lamp test of all discrete indicating lamps. Lamp test shall also sound the alarm horn.
Upon receipt of an alarm or shutdown condition, the horn shall sound and an LED shall flash. Upon acknowledgement from alarm acknowledge/lamp test switch, the horn shall be silenced and the lamp steadied. LED shall be extinguished when ECS is placed in the off/reset position if the alarm condition has been corrected.
Circuits are recurring such that the LED shall flash and the horn sound, should another fault occur even prior to correction of the initial fault.
EMERGENCY STOP PUSHBUTTON Mushroom head, twist to reset, causes engine shutdown and tripping of the
generator circuit breaker. Prevents engine
starting when depressed.
Controls consisting of reverse power relay, synchronizing lights, and switch. Reverse power condition causes tripping of the generator circuit breaker, immediate
engine shutdown, flashing of indicating lamp, and sounding of alarm horn.
GENERATOR MOUNTED CIRCUIT BREAKER Fixed mounted, three-pole, manually operated, molded case circuit breaker with
solid state trip unit for overload (time
overcurrent) and fault (instantaneous) protection. Includes DC shunt trip coil activated on any generator set monitored fault. Circuit breaker is sized for full load capacity of the generator set at 0.8 power factor.
LOAD SHARE GOVERNOR
Electronic load sharing governor with speed adjust potentiometer, idle/rated switch, and isochronous/droop switch.
Standard Caterpillar generator-mounted digital voltage regulator with voltage adjust rheostat.
CURRENT TRANSFORMERS (3)
Five-ampere secondary with shorting terminal strips
POTENTIAL TRANSFORMERS (3)
120 VAC secondary with primary and secondary fuse protection, two connected to the generator side of the circuit breaker, one connected to the load side of the circuit breaker.
Three-phase plus fully rated neutral bus bars with NEMA standard hole pattern for connection of customer load cables and generator cables. Bus bars are sized for full load capacity of the generator set at 0.8 power factor. Also includes ground bus, connected to the generator frame ground and container frame with holes for connection of field ground cable. Bus bars are accessible from outside of the power module via hinged, lockable cable access door.
3400 Power Modules
Three 120 VAC (60 Hz units) shore power connections for jacket water heaters, generator space heater, and battery charger.
24 VDC/20A battery charger with float/
equalize modes and charging ammeter.
© 2000 Caterpillar
All rights reserved.
Printed in U.S.A.
LEHX0530 ( 10-00) Materials and specifications are subject to change without notice.