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@PerkinsTechnical Data

®

4000 Series4012-46TWG2A

4012-46TWG3ADiesel Engine - ElectropaK

Used for 1253kVA generator

Used for 1360kVA generator

Basic technical dataNumber of cylinders . ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... . 12 Cylinder arrangement... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... Vee 60°Cycle ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... . 4 stroke, compression ignitionInduction system .. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... turbochargedCombustion system.. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... . direct injectionCompression ratio ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 13:1 nominalBore.. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 160 mmStroke ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 190 mmCubic capacity .. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 45·482 litresDirection of rotation .. ... ... ... ... ... ... ... ... ... .. clockwise viewed on flywheelFiring order ... ... ... ... ... ... ... ... ... ... ... 1A,6B,5A,2B,3A,4B,6A,1B,2A,5B.4A,3B

Cylinder 1 . ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... furthest from flywheelNote: Cylinders designated ‘A’ are on the right hand side of the engine when viewed from the flywheel end.

Total weight of ElectropaK

Overall dimensions of ElectropaK

Moment of inertia (mk²)

Cyclic irregularityFor engine/flywheel maximum:-4012-46TWG2A @ 1500 rev/min.. ... ... ... ... ... ... ... ... ... .. 1·752-4012-46TWG3A @ 1500 rev/min.. ... ... ... ... ... ... ... ... ... ...1·752

RatingsSteady state speed stability at constant load . ... ... ... ... .. ± 0,25%Electrical ratings are based on average alternator efficiency and are for guidance only (0.8 power factor being used).

Operating pointEngine speed ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...1500 rev/minStatic injection timing . ... ... ... ... ... ... ... ... ... ... ... .spill timing 22°Cooling water exit temperature .. ... ... ... ... ... ... ... ... ... ... < 98 °C

PerformanceNote: All data based on operation to ISO 3046/1, BS 5514 and DIN 6271 standard reference conditions.

Estimated sound pressure level at 1 metre ... ... ... ... ... 111 dB(A)Note: Noise levels represent highest recorded at 1500 rev/min

For engines operating in ambient conditions other than the standard reference conditions stated below, a suitable de-rate must be applied. De-rate tables for increased ambient temperatures and / or altitude are available, please contact Perkins Applications Department

Test conditions-air temperature.. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...25 °C-barometric pressure .. ... ... ... ... ... ... ... ... ... ... ... ... ... ...100 kPa-relative humidity ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 30%-air inlet restriction at maximum power (nominal)... ... ... ... 2,5 kPa-exhaust back pressure at maximum power (nominal)... ... 3,0 kPa-maximum fuel temperature (inlet pump) ... ... ... ... ... ... ... ...58 °CFor test conditions relevant to data on load acceptance, please refer to Load acceptance (cold) on page 22 of this document.

Units Temperate TropicalEngine - dry kg 4440 4440ElectropaK - dry (1)

1. Includes fuel cooler

kg 5220 5283 ElectropaK - wet (1) (2)

2. Includes engine lubricating oil and water jacket

kg 5547 5615

Units Height Length WidthTemperate mm 2255 3714 1780 Tropical mm 2255 3714 1978

Units 4012-46TWG2A 4012-46TWG3AFlywheel kgm² 9,57 9,57Engine kgm² 9,73 9,73

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General installation - 4012-46TWG2A (temperate)

General installation - 4012-46TWG2A (Tropical)

Designation UnitsType of operation and application

Base Prime StandbyGross engine power kWb 884 1106 1217Fan and battery charging alternator power kW 51Net engine power kWm 833 1055 1166Brake mean effective pressure (gross) kPa 1543 1930 21,24Combustion air flow at ISO conditions m³/min 90 102 109Exhaust gas temperature (max) after turbo °C 422Exhaust gas flow (max) at atmospheric pressure m³/min 180Boost pressure ratio - 2,38 2,86 3,09Mechanical efficiency % 88.0 90.2 91.0Overall thermal efficiency (nett) % 39.46 39.81 39.66Friction and pumping power losses kWm 120Mean piston speed m/s 9,5Engine coolant flow l/min 948

Typical GenSet electrical output (0.8pf)kVA 989 1253 1385kWe 791 1002 1108

Assumed alternator efficiency % 95


Base Prime StandbyGross engine power kWb 891 1113 1224Fan and battery charging alternator power kW 58Net engine power kWm 833 1055 1166Brake mean effective pressure (gross) kPa 1555 1942 2136Combustion air flow at ISO conditions m³/min 90 103 109Exhaust gas temperature (max) after turbo °C 422Exhaust gas flow (max) at atmospheric pressure m³/min 180Boost pressure ratio - 2,39 2,87 3,10Mechanical efficiency % 88.1 90.3 91.1Overall thermal efficiency (nett) % 39,5 39,8 39,6

Friction and pumping power losses kWm 120Mean piston speed m/s 9,5Engine coolant flow l/min 948



General installation - 4012-46TWG3A (Temperate)

General installation - 4012-46TWG3A (Tropical)

Notes:All quoted gross engine powers include an allowance of 1.5% for installation varianceNot to be used for CHP design purposes (indicative figures only). Consult Perkins Engines Stafford Limited. Assumes complete combustion.

Rating definitions Baseload powerUnlimited hours usage with an average load factor of 100% of the published baseload power rating.

Prime PowerVariable load. Unlimited hours usage with an average load factor of 80% of the published prime power rating over each 24 hr. period A 10% overload is available for 1 hour in every 12 hour of operation.

Standby powerVariable load. Limited to 500 hours annual usage up to 300 hours of which may be continuous running. No overload is permitted.


Base Prime StandbyGross engine power kWb 960 1200 1314Fan and battery charging alternator power kW 51Net engine power kWm 909 1149 1263Brake mean effective pressure (gross) kPa 1675 2094 2293Combustion air flow at ISO conditions m³/min 94 108 114Exhaust gas temperature (max) after turbo °C 474Exhaust gas flow (max) at atmospheric pressure m³/min 182Boost pressure ratio - 2.55 3.05 3.28Mechanical efficiency % 88.9 90.9 91.6Overall thermal efficiency (nett) % 39.66 39.80 38.95Friction and pumping power losses kWm 120Mean piston speed m/s 9,5Engine coolant flow l/min 948




Base Prime StandbyGross engine power kWb 967 1207 1321Fan and battery charging alternator power kW 58Net engine power kWm 909 1149 1263Brake mean effective pressure (gross) kPa 1688 2106 2305Combustion air flow at ISO conditions m³/min 94 108 115Exhaust gas temperature (max) after turbo °C 479Exhaust gas flow (max) at atmospheric pressure m³/min 182Boost pressure ratio - 2.56 3.07 3.30Mechanical efficiency % 89.0 91.0 91.7Overall thermal efficiency (nett) % 39.67 39.75 38.92Friction and pumping power losses kWm 120Mean piston speed m/s 9,5Engine coolant flow l/min 948



Energy balance4012-46TWG2A - Temperate

4012-46TWG2A - Tropical

4012-46TWG3A - Temperate


Designation Units Baseloadpower

Prime power

Standby power

Energy in fuel kWt 2107 2632 2939

Energy in power output (gross) kWb 884 1106 1217

Energy to cooling fan kWm 51

Energy in power output (nett) kWm 833 1055 1166

Energy to exhaust kWt 684 878 1001

Energy to coolant and oil kWt 345 372 401

Energy to radiation kWt 64 81 89

Energy to charge cooler kWt 131 195 232

Designation Units Baseload power

Prime power

Standby power










Prime power

Standby power










Prime power

Standby power









Note: Not to be used for combined heat and power (CHP) purposes (indicative figures only), if required, please consult Perkins Engines
Company Limited.
Exhaust systemOutlet size (internal)... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 2 x 254 mmOutlet flange size ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 10” table DBack pressure for total system... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 500 PaFor recommended pipe sizes, refer to the Installation Manual.

Induction systemEmissions data with combustion air temperature of 25 °CMaximum air intake restriction of engine:-clean filter . ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 200 Pa-dirty filter ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 400 Pa-air filter type .. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .. Heavy Duty Axial Flow

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THERMOSTAT HOUSING1 EACH SIDE

ELECTRONIC ACTUATOR

TORSIONAL VIBRATION DAMPERS (2 X 20")

RADIATOR FILLER0.7 BAR RELIEF VALVE

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6 HOLES M16 X 30 DEEPEQUALLY SPACED ON ø543 (21.38") P.C.D.

16 HOLES M12 X 21 DEEPEQUALLY SPACED AS SHOWNON ø851 (33.5") P.C.D.

EXHAUST OUTLET FLANGE1 EACH SIDESEE DETAIL

AIR FILTER RESTRICTION INDICATOR 1 EACH SIDE

4012-46TWG2A Temperate - Support pads, exhaust outlet flange and flywheel

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DETAIL OF EXHAUST OUTLET FLANGE(B.S.10 TABLE D)

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FRONT VIEW

ø20 HOLE, FRONT LIFTING BRACKET(ENGINE ONLY) 1 EACH SIDE

FUEL FILTER/WATER SEPERATOR

G 3/8" AND G 1/2" TAPPINGS IN

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SUMP DRAIN PLUG

CRANKSHAFT



EXHAUST OUTLET FLANGE 1 EACH SIDE SEE DETAIL

AIR FILTER RESTRICTION INDICATOR 1 EACH SIDE

FILTER

HEIGHT

4012-46TWG2A Tropical, 4012-46TWG3A Temperate - Support pad, exhaust outlet flange and flywheel

22,5°

ø250

ø406


SCALE 1:5


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8 HOLES ø 22

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4012-46TWG3A Tropical - left view

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4012-46TWG3A Tropical - front view

FUEL COOLERCONNECTIONS

510

701 902.5 OVER MATRIX

1805

641

75

235.4 ENGINEFEET

22 254.5

OVER MATRIX

1662

370 353 70 CLEARANCE REQUIRED TO REMOVE SUMP

513513

570

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936.5 CRS1873

385 385

315315


G 3/8" AND G 1/2" TAPPINGS IN


ELECTRONIC ACTUATOR

TORSIONAL VIBRATION

16 SLOTS 11 X 19(FOR DUCTING PURPOSES)

FUEL FILTER/WATER SEPARATOR

FUEL INLET CONNECTION ø 15 OUTSIDE STEEL PIPE.MAXIMUM FUEL LIFT 2,5 METRESWHEN FUEL TANK OUTLET ISLOWER THAN LIFT PUMP INLET ANON-RETURN VALVE MUST BEFITTED AT FUEL TANK. IF MAX.FUEL LIFT FIGURE IS EXCEEDEDCONSULT PERKINS TECHNICAL DEPT.

CRANKSHAFT


FUEL LEAK-OFF CONN.TO SUIT 15 mm O/D PIPE.'BITE' TYPE NON-RETURNVALVE SUPPLIED.1 EACH SIDE.


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RADIATOR DRAINPLUG G1/2"

ø 20 HOLE FRONT LIFTING BRACKET

(ENGINE ONLY) 1 EACH SIDE

DAMPER

THERMOSTAT HOUSING 1 EACH SIDE

4012-46TWG3A Tropical - right view

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4012-46TWG3A Tropical - rear view

611

ENGINEFEET235.4

25

1400

646

301 301

OVER RADIATOR1905

OVERALL WIDTH1978

OVERALLHEIGHT

2255

552.5

10

11.25°

280

39

182 182

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B BANK A BANK24 V AIR SHUT-OFF VALVEENERGISED TO CLOSE.1 EACH SIDE

SUMP DRAIN PLUG

CRANKSHAFT



AIR FILTER RESTRICTIONINDICATOR. 1 EACH SIDE

CLEARANCE REQUIRED TOREMOVE FUEL FILTER

ROTATION

4012-46TWG3A Tropical - Support pads, exhaust outlet flange and flywheel

300300

150900

1978

100

1900

950

39

1751744

500 435

9170

60

451

98

135

221

2369

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4 154

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CRANKSHAFT


SCALE 1:5


Cooling systemRecommended coolant: 50% inhibited ethylene glycol or 50% inhibited propylene glycol and 50% clean fresh water. For CHP systems and where there is no likelihood of ambient temperature below 10 °C, then clean ‘soft’ water may be used, treated with 1% by volume of Perkins inhibitor in the cooling system. The inhibitor is available in 1 litre bottles from all Perkins Distributors.Maximum -pressure in crankcase water jacket.. ... ... ... ... ... ... ... ... 170 kPa-top tank temperature (standby) ... ... ... ... ... ... ... ... ... ... ... 98 °C-static pressure on pump... ... ... ... ... ... ... ... ... ... ... ... ... . 70 kPa-pressure cap setting. ... ... ... ... ... ... ... ... ... ... ... ... ... ... .. 70kPa

Total coolant capacityElectrounit (engine only) ... ... ... ... ... ... ... ... ... ... ... ... ... 73 litresElectropaK-temperate (engine and radiator) .. ... ... ... ... ... ... ... ... ...196 litres-tropical (engine and radiator) ... ... ... ... ... ... ... ... ... ... .. 201 litresMaximum permissible restriction to coolant pump flow. ... . 20 kPaThermostat operating range.. ... ... ... ... ... ... ... ... ... ... 71 - 85 °CTemperature rise across the engine (standby power) with inhibited coolant .. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .. 8 °CShutdown switch setting ... ... ... ... ... ... ... ... ... ... . 101 °C (rising)Coolant immersion heater capacity... ... ... ... ... ... ... ... .. 2 x 4 kW

Radiator

Water jacket cooling data

Coolant pump-speed ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 1.4 x engine rev/min-method of drive ... ... ... ... ... ... ... ... ... ... ... engine (gear) driven

Fan

Cooling clearance4012-46TWG2A - Temperate




Cold start recommendations

Notes:The battery capacity is defined by the 20 hour rateThe oil specification should be for the minimum ambient temperature as the oil will not be warmed by the immersion heaterBreakaway current is dependant on battery capacity available. Cables should be capable of handling the transient current which may be up to double the steady cranking current.

Unit Temperate TropicalFace area mm² 2630400 2967420

Number of rows and material 226 226

Fins per inch and material 7 7

Width of matrix mm 1600 1805

Height of matrix mm 1644 1644

Weight (dry) kg 780 843

Total coolant capacity litres 123 128

Pressure cap setting (min) kPa 69 69

Unit 4012-46TWG2A

4012-46TWG3A

Coolant flow l/s 948 948

Coolant exit temperature (max) °C 98 98

Coolant inlet temperature (min) °C 70 70

Coolant inlet temperature (max) °C 85 85

Unit Temperate TropicalType engine driven engine driven

Diameter mm 1400 1530

Number of blades 12 12

Material Aluminium Aluminium

Drive ratio 1:1 1:0,9

Maximum additional restriction (duct allowance) to cooling airflow, and resultant min airflow

Description °C Pa m³/secAmbient clearance: Inhibited coolant 35 N/A N/A

Duct allowance 35 250 N/A

Minimum airflow 35 250 22













Temperature range

Down to 0 °C (32 °F)

Oil: .. ... .. ... .. ... .. ... .. ... .. ... .. ... .. ... API CH4 15W40Starter: .. ... .. ... .. ... .. ... .. ... .. ... .. ... .. ... .2 x 24 voltsBattery: .. ... .. ... .. ... .. ... .. ... .. ... .. ... . 4 x 12V 286 AhMax breakaway current: . .. ... .. ... .. ... .. ... . 1600 ampsCranking current: ... .. ... .. ... .. ... .. ... .. ... .. 810 ampsAids: ... .. ... .. ... .. ... .. ... .. ... .. ... .. ... .. ..block heatersMin mean cranking speed:. ... .. ... .. ... .. ... 120 rev/min

Lubrication systemRecommended multigrade oil viscosity (15W40) which adequately meets the specifications of API CH4. For further details refer to the engine OMM.

Lubricating oil capacityTotal system... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ..177 litresSump maximum . ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ..159 litresSump minimum .. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ..136 litresOil temperature at normal operating conditions . ... ... ... ... .. 95 °COil temperature (in rail) - maximum continuous operation . 105 °C

Lubricating oil pressureminimum ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .. 340 kPaAt rated speed ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 400 kPaOil relief opens ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 400 kPaOil filter screen spacing.. ... ... ... ... ... ... ... ... ... ... ... .. 20 micronsSump drain plug tapping size. ... ... ... ... ... ... ... ... ... ... ... ... .. G1Lubricating oil pump speed ... ... ... ... ... ... ... 1.4 x engine rev/minLubricating oil pump drive method . ... ... ... ... ... ... ...engine drivenShutdown switch - pressure setting (where fitted) 193 kPa (falling)

Normal operating angles-front and rear ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 5°-side tilt... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .. 10°

Fuel systemInjection system . ... ... ... ... ... ... ... ... ... ... ... ... ... direct injectionFuel injection pump/Injector type ... ... ... ... Combined unit injectorInjector pressure ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 23,4 MPaFuel lift pump type.. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... GerotorDelivery flow... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .. 1020 litres/hrHeat retained in fuel to tank-4012-46TWG2A ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 8,5 kW-4012-46TWG3A ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 9,0 kWFuel inlet temperature to be less than ... ... ... ... ... ... ... ... .. 58 °CDelivery pressure ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .. 300 kPaMaximum suction head at pump inlet ... ... ... ... ... ... ... . 24,5 kPaMaximum static pressure head .. ... ... ... ... ... ... ... ... . see manualFuel filter spacing... ... ... ... ... ... ... ... ... ... ... ... ... ... .. 10 micronsGoverning type... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... electronicGoverning .. ... ... ... ... ... ... ... ... ... ... ... ... ... to ISO 8528-5 2005Torque at the governor output shaft... ... ... ... ... ... ... ... ... .. 1·631Tolerance on fuel consumption.. ... ... ... ... ... to ISO 8528-1 1993

Fuel specificationRecommended fuel to conform to:-BS2869 1998 class A2 or BS EN590

Fuel consumptionNote: All fuel consumption figures are based on assumed fuel density of 0.862.





Electrical systemAlternator-type ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... . insulated return-voltage ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .. 24 volts-output . ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 40 ampsStarter-type ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... (axial) electric-motor voltage . ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .. 24 volts-motor power ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... . 16,4 kWNumber of teeth on-flywheel .. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 156-starter motor... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .. 12Minimum cranking speed ... ... ... ... ... ... ... ... ... ... ... 120 rev/minStarter solenoid (24V)-pull in current @ -25 °C max.. ... ... ... ... ... ... ... ... ... ... 30 amps-hold in current @ -25 °C max. ... ... ... ... ... ... ... ... ... ... .. 9 ampsEngine stop solenoid current... ... ... ... ... ... ... ... ... ... ... 1,1 amps

Engine mountingMaximum static bending moment at rear face of block .. 1356 NmMaximum additional load applied to flywheel due to rotating components. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 850 kg

Centre of gravityBare engine (wet) 4012-46TWG2A / 4012-46TWG3A-forward of rear face of cylinder block . ... ... ... ... ... ... ... . 658 mm-above crankshaft centre line .. ... ... ... ... ... ... ... ... ... ... ... 32 mmElectropaK (wet) - Temperate-forward of rear face of cylinder block . ... ... ... ... ... ... ... . 960 mm-above crankshaft centre line .. ... ... ... ... ... ... ... ... ... ... ... 32 mmElectropaK (wet) - Tropical-forward of rear face of cylinder block . ... ... ... ... ... ... ... 1286 mm-above crankshaft centre line .. ... ... ... ... ... ... ... ... ... ... ... 32 mm

Oil consumption (prime power) 4012-46TWG2A

4012-46TWG3A

After running-in(typically after 250 hours) g/kWhr 0,52 0,52

Oil flow rate from oil pump l/s 6,0 6,0

DesignationFuel consumption calculated

on nett rated powersg/kWh litres/hr

Standby 212 287Prime power 211 258Baseload power 213 206At 75% of Prime power 214 196At 50% of Prime power 230 141










Load acceptance (cold)4012-46TWG2A (prime %) ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...724012-46TWG3A (prime %) ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...65Engine block temperature (cold) ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ..45 °CAmbient temperature . ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ..25 °CGoverning mode ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... IsochronousAlternator inertia. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ..50 kgm²Under frequency roll off (UFRO) point set to . ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ..49 HzUFRO rate set to ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .. 16 V/HzLAM on/off.. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...on

Notes:All test were conducted using an engine installed and serviced to Perkins Engine Company Limited recommendations.Applied load is a percentage of the generator electrical output efficiencies as published in the general installation section of this data sheet.

Noise levelsThe figures for total noise levels are typical for an engine running at the standby power rating in a semi-reverberant environment and measured at a distance of one metre from the periphery of the engine (sound pressure level re: -20 x 10-6 pa).Ambient noise level ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 70 dB(A)

Octave analysisThe following diagrams show maximum noise level.

Noise data 4012-46TWG3A, 1500 rev/min 1263 kWb with radiator 584/471FC

Noise data 4012-46TWG3A, 1500 rev/min 1263 kWb with radiator 584/485FC

Note: The information given on this Technical Data Sheet is for standard ratings only. For ratings other than those shown, please contact Perkins Engines Company Limited.

Fr e que nc y a na l y si s a t poi nt 6

9196.2 97

105 106.8 104 101.895.6

91.486.1

0

20

40

60

80

100

120

31.5 63 125 250 500 1K 2K 4K 8K 16k

Fr e que nc y i n Hz

6

5

4

1

2

3

Position SPL dBA

1 114.1

2 112.9

3 113.0

4 111.7

5 113.0

6 114.2

6

5

4

1

2

3

Fr e que nc y a na l y si s a t poi nt 1

8892.6 95.8

109.4 109.6102.8 100

95.190.2

84

0

20

40

60

80

100

120

31.5 63 125 250 500 1K 2K 4K 8K 16k

Fr e que nc y i n Hz

Position SPL dBA

1 113.5

2 113.2

3 112.0

4 111.7

5 113.1

6 112.8

This page has been left intentionally blank

4000 Series 4012-46TWG2A4012-46TWG3A

Per

kins

Eng

ines

Com

pany

Lim

ited.

All information in the document is substantially correct at the time of printing but may be subsequently altered by the company.

Distributed by@Perkins ®

Publ

icat

ion

No.

TPD

1603

E, Is

sue

1. J

anua

ry 2

007

©

Perkins Engines Company LimitedPeterborough PE1 5NA United KingdomTelephone +44 (0) 1733 583000Fax +44 (0) 1733 582240www.perkins.com

senior technical author - tổng kho máy phát điện

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