Gas Generator Set NATURAL GAS STANDBY 500 ekw 750 kva 60 HZ 1800 RPM Caterpillar is leading the power generation marketplace with power solutions engineered to deliver unmatched flexibility, expandability, reliability and cost-effectiveness. Image shown may not reflect actual package FEATURES FULL RANGE OF ATTACHMENTS CAT G3412C GAS ENGINE Wide range of bolt-on system expansion Robust high speed diesel block design provides attachments, factory designed and tested. prolonged life and lower owning and operating costs Flexible packaging options for easy and cost Designed for maximum performance on effective installation. low pressure gaseous fuel supply. Simple open chamber combustion system for PROVEN SYSTEM reliability and fuel flexibility. Fully prototype tested. Field proven in a wide range of applications CAT GENERATOR worldwide. Designed to match performance and output Certified torsional vibration analysis available characteristics of Caterpillar gas engines Industry leading mechanical and electrical design WORLDWIDE PRODUCT SUPPORT High efficiency Cat dealers provide extensive post sales support including maintenance and repair CAT EMCP4.2 CONTROL PANEL agreements Simple user friendly interface and navigation Cat dealers have over 1,800 dealer branch Easy integration with local building management stores operating in 200 countries Fully-featured power metering and protection The Cat S O S SM program cost effectively Remote control and monitor capability options detects internal engine component conditions, even the presence of unwanted fluids and combustion by-products
G3412C Product Consist (DTO) System Air Inlet Cooling Exhaust Fuel Generator Governing Ignition Lubrication Mounting Starting / Charging General Standard Air cleaner, single element Service indicator Engine driven pump for jacket water Package mounted radiator sized for 40 C / 104 F ambient to 200m / 660 ft Coolant drain lines with valves piped to edge of base Cat Coolant Low coolant sensor Exhaust manifolds, watercooled Stainless steel exhaust flex with two ship loose weld flanges 1.5 to 5 psi pressure fuel regulator Carburator sized for 800-1000 BTU/scf gas NOx sensor based air-fuel-ratio control Fuel safeties, energized to run fuel shutoff valve, and gas filter (optional) SR4B self excited generator (permanent magnet optional) includes: Class H insulation, Class F temperature rise (130 C Standby) 12 Lead (600 volt generators are 6 lead) VR6 Voltage Regulator, 3-phase sensing with reactive droop, 2:1 Volts/Hz or 1:1 Volts/Hz Power terminal strip termination Extension box Segregated low voltage (AC/DC) wiring panel Random wound Woodward 2301A speed control with EG3P actuator Digital Ignition System Lubricating oil Electric prelube pump Oil filter Oil drain line with valve piped to edge of base Fumes disposal piped to front of radiator Wide, formed steel base Linear vibration isolators between base and engine-generator 24V DC starting motor 45A charging alternator Battery set w/ rack and cables Battery disconnect switch Paint -- Caterpillar Yellow except rails & radiators; Crankshaft vibration damper Lifting eyes Operation and Maintenance Manuals; Parts Book. 2
SPECIFICATIONS CAT G3412C GAS ENGINE CAT EMCP4.2 CONTROL PANEL 4-Stroke-Cycle, Spark Ignited EMCP 4 controls including: Number of Cylinders V12 Run / Auto / Stop Control Bore mm (in) 137 (5.4) Speed and Voltage Adjust Stroke mm (in) 152 (6.0) Purge Cycle Crank Displacement L (cu in) 27.0 (1649) 24-volt DC operation Compression Ratio 11.4:1 Environmental sealed front face Aspiration Lean, Turbocharged Text alarm/event descriptions Cooling Type Separate JW/OC & AC Digital indication for: Fuel System Low Pressure RPM Ignition Digital Ignition DC volts Governor Type Woodward 2301A Operating hours Oil pressure (psi, kpa or bar) CAT SR4B GENERATOR Coolant temperature Frame size 591 Volts (L-L & L-N), frequency (Hz) Excitation Self Excited Amps (per phase & average) Pitch 0.7333 ekw, kva, kvar, kw-hr, %kw, PF Number of poles 4 Warning/shutdown with common LED indication of: Number of bearings 1 Low Oil pressure Number of leads 12 High Coolant temperature Insulation Class H Overspeed IP rating Drip proof IP22 Emergency Stop Alignment Pilot shaft Failure to start (overcrank) Overspeed capability % of rated 50 Hz 180% Low Coolant temperature 60 Hz 150% Low Coolant level Waveform deviation line to line, no load less than 5.0% Programmable protective relaying functions: Voltage regulator - VR6 Generator phase sequence Voltage level adjustment +/- 5.0% Over/Under voltage (27/59) Voltage regulation, steady state +/- 0.5% Over/Under Frequency (81 o/u) Voltage regulation with 3% speed change +/- 0.5% Reverse Power (kw) (32) Telephone Influence Factor (TIF) less than 50 Reverse reactive power (kvar) (32RV) Overcurrent (50/51) Communications: Consult ASC for available voltage Six digital inputs (4.2 only) Four relay outputs (Form A) Two relay outputs (Form C) Two digital outputs Materials and specifications are subject to change without notice. Customer data link (Modbus RTU) The International System of Units (SI) is used in this publication. Accessory module data link Serial annunciator module data link Emergency Stop pushbutton Compatible with the following: digital I/o module Local annunciator Remote CAN annunciator Remote Serial annunciator 3
TECHNICAL DATA G3412C Natural Gas Generator Set Ref. EM4706 EM0747 Engine Type G3412C G3412C Compression Ratio 11.4:1 11.4:1 Emission level (NO x ) mg/nm 3 g/bhp-hr 851 2.0 421 1.0 Aftercooler Temperature Deg C Deg F 54 130 54 130 Package Performance* (1) (w/ pumps/fan) Power Rating @ 0.8 pf ekw Continuous 500 423 Power Rating @ 1.0 pf ekw Continuous 535 451 Mechanical Power bkw Continuous 563 475 Fuel Consumption (2) 100% load w/ fan Nm 3 /hr scf/hr 158 5,908 137 5,126 75% load w/ fan Nm 3 /hr scf/hr 125 4,676 109 4,061 50% load w/ fan Nm 3 /hr scf/hr 92 3,435 80 2,994 Altitude Capability (3) At 25 Deg C (77 Deg F) ambient, above sea level m ft 610 2000 1219 4000 Cooling System Ambient air temperature Deg C Deg F 25 77 25 77 Jacket water temperature ( Maximum outlet ) Deg C Deg F 99 210 99 210 Exhaust System Combustion air inlet flow rate Nm 3 /min scfm 40.9 100 36.2 1,395 Exhaust stack gas temperature Deg C Deg F 450 842 369 696 Exhaust gas flow rate (Nm 3 @ 0C, ft 3 /min @ stack T) Nm 3 /min ft 3 /min 44 3,904 39 3,247 Heat Rejection (4) Heat rejection to jacket water+oil cooler kw Btu/min 425 24,160 429 24,387 Heat rejection to aftercooler kw Btu/min 115 6,353 79 4,517 Heat rejection to exhaust (LHV to 120 Deg C) kw Btu/min 238 13,535 173 9,838 Heat rejection to atmosphere from engine kw Btu/min 64 3,632 55 3,153 Heat rejection to atmosphere from generator (typical) kw Btu/min 30 1,730 30 1,730 Generator Votlage V 480 480 Typical Temperature rise Deg C 130 130 Typical motor starting capability @ 30% voltage dip (5) skva 956 956 Lubrication System Standard sump refill with filter change L Gal 170 45 170 45 Emissions (6) NO x @ 5% O 2 (dry) mg/nm 3 g/bhp-hr 851 2.0 421 1.0 CO @ 5% O 2 (dry) mg/nm 3 g/bhp-hr 748 1.8 915 2.2 THC @ 5% O 2 (dry) mg/nm 3 g/bhp-hr 2227 5.2 2634 6.3 NMHC @ 5% O 2 (dry) mg/nm 3 g/bhp-hr 334 0.8 395 0.9 Exhaust O 2 (dry) % 8.6% 9.1% 4
RATING DEFINITIONS AND CONDITIONS (1) Standby Maximum output available for the duration of an emergency power outage (typically less than 500 hours/year). Ratings are based on low energy gas having a Low Heat Value (LHV) of 35.64 MJ/Nm 3 (905 Btu/ft 3 ).For values in excess of altitude. ambient temperature, inlet/exhaust restriction, or different from the conditions listed, contact your Cat Dealer. (2) Ratings and fuel consumption are based on ISO 3046/1 standard reference conditions of 25 C (77 F) of ambient temperature and 100 kpa (29.61 in Hg) of total barometric pressure, 30% relative humidity with 0, +5% fuel tolerance. (3) Altitude capability is based on 2.5 kpa air filter and 5.0 kpa exhaust stack restrictions. (4) Heat rejection Values based on nominal data with fuel tolerance of +/-2.5% and 2.5 kpa inlet and 5.0 kpa exhaust restrictions. (5) Assume synchronous driver. (6) Emissions data measurements are consistent with those described in EPA CFR 40 Part 89 Subpart D & E and ISO8178-1 for measuring HC, CO, PM NO X. Data shown is based on steady state engine operating conditions of 25 C (77 F), 96.28 kpa (28.43 Hg) and fuel having a LHV of 35.6 MJ/Nm 3 (905 Btu/cu ft) and 80 Cat Methane Number at 101.60 kpa (30.00 in Hg) absolute and 0 C (32 F). Emission data shown is subject to instrumentation, facility and engine fuel system adjustment. 5
DIMENSIONS Package Dimensions Length 4540.2 mm 178.8 in Note: Do not use for installation design. Width 2194.5 mm 82.9 See general dimension drawings Height 2528.9 mm 99.6 for details Approx. Shipping Weight 4383.5 kg 9664 lb (Drawing Number 45203056) Information contained in this publication may be considered confidential. Discretion is recommended when distributing. Materials and specifications are subject to change without notice. CAT, CATERPILLAR, their respective logos, Caterpillar Yellow, the Power Edge trade dress as well as corporate and product identity used herein, are trademarks of Caterpillar and may not be used without permission. www.cat-electricpower.com Media TBD (12/13) 2013 Caterpillar All Rights Reserved. Printed in U.S.A.