Milton CAT G3412 User Manual

GAS
GENERATOR SET

STANDBY 350 ekW
CONTINUOUS

350 ekW

60 Hz

Caterpillar is leading the power generation
marketplace with Power Solutions engineered
to deliver unmatched flexibility, expandability,
reliability, and cost-effectiveness.

FEATURES

FULL RANGE OF ATTACHMENTS

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Wide range of bolt-on system expansion
attachments, factory designed and tested

SINGLE-SOURCE SUPPLIER

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Fully Prototype Tested with certified torsional
vibration analysis available

WORLDWIDE PRODUCT SUPPORT

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Worldwide parts availability through the
Caterpillar dealer network

●

With over 1,200 dealer outlets operating
in 166 countries, you’re never far from
the Caterpillar part you need.

●

99.5% of parts orders filled within 48 hours.
The best product support record in the
industry.

●

Caterpillar dealer service technicians are
trained to service every aspect of your electric
power generation system.

●

Preventive maintenance agreements

●

The Cat Scheduled Oil Sampling (S•O•SSM)
program cost effectively detects internal engine
component condition, even the presence of
unwanted fluids and combustion by-products

CAT®G3412 TA GAS ENGINE

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Reliable, rugged, durable design

●

Field-proven in thousands of applications
worldwide

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Low pressure gas

CAT SR4B GENERATOR

●

Designed to match performance and output
characteristics of Caterpillar engines

●

Optimum winding pitch for minimum total
harmonic distortion and maximum efficiency

●

Segregated AC/DC, low voltage accessory
box provides single point access to
accessory connections

CAT CONTROL PANELS

●

Two levels of controls, designed to meet
individual customer needs:

EMCP II provides digital monitoring, metering,
and protection

EMCP II+ provides EMCP II features along
with full-featured power metering and
protective relaying

WHERE THE WORLD TURNS FOR POWER

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

G3412 TA, 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 ....................................9.7:1

Aspiration .......................Turbocharged-Aftercooled

Ignition system .............................Digital ignition

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

STANDBY 350 ekW
CONTINUOUS 350 ekW
60 Hz

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 Digital ignition system
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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