Engine Performance Data @ 1500 rpm - Powerica Ltd

1 G-DRIVEQSK1 Engine SpeedStandby PowerPrime PowerContinuous PowerrpmkWmhpkWmhpkWmhp15002539340423043 08820722777 These guidelines have been formulated to ensure proper application of generator drive engines in generator set in-stallations. STANDBY POWER RATING: Applicable for supplying emergency power for the duration of the utility power outage. No overload capability is available for this rating. Under no condition is an Engine allowed to operate in parallel with the public utility at the Standby Power rating. This rating should be applied where reliable utility power is available. A Standby rated Engine should be sized for a maximum of an 80% average load factor and 200 hours of operation per year.

2 This includes less than 25 hours per year at the Standby Power rating. Standby ratings should never be applied except in true emergency power outages. Negotiated power outages contracted with a utility company are not considered an emer-gency. PRIME POWER RATING: Applicable for supplying electric power in lieu of commercially purchased power. Prime Power applications must be in the form of one of the following two categories:UNLIMITED TIME RUNNING PRIME POW-ER: Prime Power is available for an unlimited number of hours per year in a variable load application. Variable load should not exceed a 70% average of the Prime Power rating during any operating period of 250 hours.

3 The total operating time at 100% Prime Power shall not exceed 500 hours per year. A 10% overload capability is available for a period of 1 hour within a 12-hour period of operation. Total operating time at the 10% overload power shall not exceed 25 hours per TIME RUNNING PRIME POWER: Limited Time Prime Power is available for a limited number of hours in a non-variable load application. It is intended for use in situations where power outages are contracted, such as in utility power curtailment. Engines may be operated in parallel to the public utility up to 750 hours per year at power levels never to ex-ceed the Prime Power rating. The customer should be aware, however, that the life of any Engine will be reduced by this constant high load operation.

4 Any operation exceeding 750 hours per year at the Prime Power rating should use the Con-tinuous Power POWER RATING: Applicable for supplying utility power at a constant 100% load for an unlimited number of hours per year. No overload capability is available for this AEB for determining Electrical shown above represent gross Engine Performance capabilities obtained and corrected in accordance with ISO-3046 conditions of 100 kPa ( in Hg) barometric pressure [110 m (361 ft) altitude], 25 C (77 F) air inlet temper-ature, and relative humidity of 30% with No. 2 diesel or a fuel corresponding to ASTM D2. Derates shown are based on 15 in H2O air intake restriction and 2 in Hg exhaust back fuel consumption data is based on No.

5 2 diesel fuel weight at kg/litre ( lbs/US gal). Power output curves arebased on the Engine operating with fuel system, water pump and lubricating oil pump; not included are battery chargingalternator, fan, optional equipment and driven Status: --Preliminary-- data Tolerance: 5%Chief Engineer:CONVERSIONS:(litres = US Gal x ) (US Gal = litres x ) data Subject to Change Without NoticeDisplacement : litre (4735 in3 )Bore : 170 mm ( in.) Stroke : 190 mm ( in.)No. of Cylinders : 18 Aspiration : Turbocharged and Low Temperature Aftercooled (2 Pump / 2 Loop)Cummins , Indiana 47202-3005 Engine data SheetCurve Number:FR-6677 Basic Engine Model:QSK78-G9 Engine Critical Parts List:CPL: 43195 Date.

6 4 Nov08 OUTPUT POWERFUEL CONSUMPTION%kWmhpkg/kWm hlb/hp hlitre/hourUS gal/hourSTANDBY Performance data @ 1500 rpm Engine Output - kWm1500 rpmG-DRIVEQSK2 Continuous Power05101520253035050010001500200025003 0003500 Altitude (meters)Derate (% of Rated Power)Prime Power05101520253035050010001500200025003 0003500 Altitude (meters)Derate (% of Rated Power)Standby Power05101520253035050010001500200025003 0003500 Altitude (meters)Derate (% of Rated Power) 1500 rpm Derate CurvesQSK78-G9 Ambient Temp. C/ F55/13125/7740/10450/12255/13140/10450/1 22 Ambient Temp. C/ FOperation At Elevated Temperature And Altitude:For Standby Operation above these conditions, derate by an additional 5% per 300 m (1000 ft), and 16% per 10o C (18o F).

7 For Prime Operation above these conditions, derate by an additional 6% per 300 m (1000 ft), and 18% per 10o C (18o F).For Continuous Operation above these conditions, derate by an additional 7% per 300 m (1000 ft), and 20% per 10o C (18o F).25/7755/13140/10450/122 Ambient Temp. C/ F25/77G-DRIVEQSK3 Cummins data Sheet data SHEET : DS-6677 Engine MODEL : QSK78-G9 CONFIGURATION NUMBER : D773002GX03 DATE :4 Nov08 Performance CURVE :FR-6677 INSTALLATION DIAGRAMCPL NUMBER Fan to Flywheel: 4953857 Engine Critical Parts List: 43195 GENERAL Engine DATAType ..4-Cycle; 60 Vee;18-Cylinder DieselAspiration ..Turbocharged and Low TemperatureAftercooled (2 Pump / 2 Loop)Bore x Stroke.

8 In x in (mm x mm) x (170 x 190)Displacement .. in3 (litre)4735 ( )Compression : 1 Dry Weight (Approximate), Fan to Flywheel lb (kg)20327(9220)Wet Weight (Approximate), Fan to Flywheel lb (kg)21627(9810)Moment of Inertia of Rotating Components with FW 6057 Flywheel (SAE 00) .. lbm ft2 (kg m2) ( )Center of Gravity from Rear Face of in (mm) (1227)Center of Gravity Above Crankshaft Centerline .. in (mm) (304)Maximum Static Loading at Rear Main lb (kg)TBD(TBD) Engine MOUNTINGM aximum Bending Moment at Rear Face of Block .. lb ft (N m)7634(10350)EXHAUST SYSTEMM aximum Back in Hg (kPa)2( )AIR INDUCTION SYSTEMM aximum Intake Air Restriction with Dirty Filter Element.

9 In H2O (kPa)25( ) with Clean Filter in H2O (kPa)15( ) COOLING SYSTEM (Separate Circuit Aftercooling Required)Coolant Capacity Engine .. US gal (litre)44( ) US gal (litre)15( )Minimum Pressure Cap (for Cooling Systems with less than 2m [6 ft.] Static Head) .. psi (kPa)11(76)Maximum Static Head of Coolant Above Engine Crank ft (m)60( )Jacket Water Circuit Requirements:Maximum Coolant Friction Head External to Engine 1500 rpm .. psi (kPa)7(48)Maximum Top Tank Temperature for Standby / Prime Power .. F ( C)220 / 212(104 / 100)Thermostat (Modulating) Range .. F ( C)180 - 200(82 - 93)Aftercooler Circuit Requirements:Maximum Coolant Friction Head External to Engine 1500 rpm.

10 Psi (kPa)5(35)Maximum Inlet Water Temperature to Aftercoolers @ 25 C (77 F) .. F ( C)120(49)Maximum Inlet Water Temperature to Aftercoolers .. F ( C)150(65)Thermostat (Modulating) Range .. F ( C)115 - 135(46 - 57)LUBRICATION SYSTEMOil Pressure @ Idle Speed .. psi (kPa)30(207)@ Governed Speed .. psi (kPa)60 - 70(414 - 483)Maximum Oil Temperature .. F ( C)250(121)Oil Capacity with OP 6085 Oil Pan : Low - US gal (litre)100 - 109(378 - 413)Total System Capacity (Including Filter) .. US gal (litre)123(466)G-DRIVEQSK4 FUEL SYSTEMType Injection System .. Cummins HPI-PTMaximum Restriction at Lift Pump(clean/dirty filter).. in Hg (kPa)5/9 ( )Typical Restriction for Engine Fuel Filter Head and Clean Fuel in Hg (mm Hg)TBD (TBD)Maximum Allowable Head on Injector Return Line (Consisting of Friction Head and Static Head) in Hg (kPa)10 ( )Maximum Fuel Flow to Injector Pump.