Milton CAT G3412 375 kW Continuous 375 kW 60 Hz Spec Sheet - Manual (Page 2)

CAT SR4B GENERATOR
Frame. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 592
Type . . . . . . . . . . . . . . . . Self excited, static regulated, brushless
Construction . . . . . . . . . . . . . . . . . . Single bearing, close coupled
Three phase . . . . . . . . . . . . . . . . . . . . . . . . . 12 lead reconnectable
Insulation . . . . . . Class H with tropicalization and antiabrasion
IP rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Drip proof 22
Alignment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pilot shaft
Overspeed capability
Prototype tested . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150%
Production tested . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125%
Wave form. . . . . . . . . . . . . . . . . . . . . . . . . . Less than 5% deviation
Paralleling capability. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Standard
Voltage regulator . . . . . 3-phasing sensing with Volts-per-Hertz
Voltage regulation . . . . . . . . . . . Less than ± 1/2% (steady state)
Less than ± 1% (no load to full load)
Voltage gain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Automatic
Telephone Influence Factor (TIF) . . . . . . . . . . . . . . . . Less than 50
Harmonic Distortion (THD) . . . . . . . . . . . . . . . . . . . . Less than 5%
CAT ENGINE
G3412C LE, 4-stroke-cycle, SCAC
Bore – mm (in) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137 (5.4)
Stroke – mm (in) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152 (6.0)
Displacement – L (cu in) . . . . . . . . . . . . . . . . . . . . . . . . . 27.0 (1649)
Compression ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.4:1
Aspiration . . . . . . . . . . . . . . . . . . . . . . . Turbocharged-Aftercooled
Ignition system . . . . . . . . . . . . . . . . . Cat Electronic Ignition (EIS)
Governor type . . . . . . . . . . . . . . . . . . . . . . . . . . . Woodward 2301A
CAT CONTROL PANEL
24 Volt DC Control
NEMA 1, IP22 enclosure
Electrically dead front
Lockable hinged door
Generator instruments meet ANSI C-39-1
Terminal box mounted
Single location customer connector point
Consult your Caterpillar dealer for available voltages.
SPECIFICATIONS
S T A N D B Y 3 7 5 e k W
C O N T I N U O U S 3 7 5 e k W
6 0 H z
FACTORY INSTALLED STANDARD & OPTIONAL EQUIPMENT
System Standard Optional
Air Inlet Single element canister type air cleaner
Service indicator
Cooling Radiator with guard Jacket water coolant heater with shutoff valves
Coolant drain lines with valves Radiator removal
Fan and belt guards
Caterpillar Coolant
Low coolant level sensors
Exhaust Stainless steel exhaust flex with 15 dBA muffler
weld outlet flange
Fuel Gas pressure regulator
Low pressure fuel system
Energize To Run (ETR) gas shutoff valve
Generator Self excited Permanent magnet excited
Class H insulation Digital Voltage Regulator
Class F temperature rise Digital Voltage Regulator with KVAR/PF control
(105° C continuous/130° C standby) Anti-condensation space heater
VR6 Voltage Regulator, 3-phase sensing, Oversize & premium generators
with reactive droop Circuit breakers, UL, 3 pole with shunt trip
2:1 Volts/Hz or 1:1 Volts/Hz Multiple breaker capability
Bus bar termination
Extension box
Governor 2301A speed control with EG3P actuator Electronic load sharing
Ignition Electronic Ignition System (EIS)
Control Panels EMCP II EMCP II+
Customer Communication Module
Local alarm & remote annunciator modules
Lube Lubricating oil and filter Manual sump pump
Oil drain line with valve
Fumes disposal
Mounting Wide base
Linear vibration isolators between base
and engine-generator
Starting/Charging 35 amp charging alternator Battery chargers, 5 & 10 amp
24 volt starting motor Oversize batteries
Batteries with rack and cables
Battery disconnect switch
General Automatic Transfer Switches (ATS)
Floor standing circuit breakers
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