Rating Pocket Size LEXE2576-08

POCKET RATING GUIDEGenerator Sets

Caterpillar Diesel Ratings

Caterpillar Diesel Rating Definitions

Caterpillar Gas Ratings

Caterpillar Gas Rating Definitions

Diesel Rental Ratings

Olympian International Diesel Ratings

Olympian Diesel Rating Definitions

Olympian International Gas Ratings

Olympian North America Gas Ratings

Olympian Gas Rating Definitions

Conversion Tables

Notes Page

Caterpillar Offices

2-8

9

10-14

15

16

17-19

20

21-22

23

24

25-35

36-37

38

TABLE OF CONTENTS

Cat DieselCat Gas

Olympian DieselOlympian Gas

Color Key:

CAT GENERATOR SETS(DIESEL)

Prime

275320365365

410

455

500545550591

635680725

9109101000100011351275127513601500160017001825182520002275

Continuous

8309109101000120612301230

1500

1600164017502000

CAT 50 Hz DIESEL RATINGS

Configuration

Low BSFCLow BSFCLow BSFC

EU Stage II, Low BSFC,Low Emissions




Low BSFC, Low EmissionsLow BSFC, Low Emissions

EU Stage IIEU Stage II, Low BSFC,

Low EmissionsLow BSFC, Low Emissions

Low BSFCLow BSFCLow BSFCLow BSFC

Low BSFC, Low EmissionsLow BSFC



Low BSFC, Low EmissionsLow BSFC, Low EmissionsLow BSFC, Low EmissionsLow BSFC, Low EmissionsLow BSFC, Low EmissionsLow BSFC, Low EmissionsLow BSFC, Low EmissionsLow BSFC, Low Emissions

Low BSFC

Generator SetModel

3406C3406C3406C

C15 ACERTTM

C15 ACERT

C15 ACERT

C15 ACERT

C18 ACERTC18 ACERTC18 ACERTC18 ACERT

C18 ACERT3412C3412C3412C3508

C32 ACERT3508B

C32 ACERT3512

3512B3512B3512B3512B

3516B-HD3512B-HD

35163516

3516B3516B-HDC175-16

1500 rpm

3

Standby

300350400400

450

500

550

550600605650

7007508009001000100011001100125014001400150016001750187520002000225025003000

kVA

50 Hz DIESEL RATINGS (cont.)

Prime

500738

1050110014001475

2425325048506500

1963

2600

39255200

Continuous

4886389691013122512881368182520252200293844005875

177522252875236332383550472569889313

345646565238

65507638872598251309417463

1000 rpm

Generator SetModel

35083508B3512

3512B3516

3516B6CM208CM209CM20

3606360836123616

36066CM258CM25

36089CM25

36123616

12CM3216CM32

6CM328CM329CM32

6CM437CM438CM439CM4312CM4316CM43

750 rpm

*All ratings at 1.0 pf**All ratings at 0.8 pf

CAT 60 Hz DIESEL RATINGSekW

4 5

Standby

2688357553757150

2163

2863

43255725

Prime

11.81618

22.527364554

67.58290

1216.418

22.8273645

54.67290114135

157.5

Model

D13-2SD17-2SD20-4SD25-6SD30-6SD40-4SD50-4SD60-4SD75-4SD90-4SD100-4S

D13-2D18-2D20-4D25-6D30-8D40-4D50-4D60-4D80-4D100-4D125-6D150-8D175-2

Single Phase Output* 1800 rpm

kVA

600 rpm

500 rpm

Standby

13172025304050607590100

131820253040506080100125150175

3-Phase Output** 1800 rpm

CAT 60 Hz DIESEL RATINGS (cont.)

Prime

225275320

365

410

455

500545591635680725820810910910

10001135127513601360160018251825

2275

Continuous

660740832830890

1010123012301230145016401640

2050

Configuration

EPA Tier 3EPA Tier 3

EPA Tier 3, Low BSFC, Low Emissions





EPA Tier 2, Low BSFC EPA Tier 2, Low BSFC EPA Tier 2, Low BSFC EPA Tier 2, Low BSFC EPA Tier 2, Low BSFC EPA Tier 2, Low BSFC

Low BSFC, Low EmissionsEPA Tier 2, Low BSFC

Low BSFC, Low EmissionsEPA Tier 2, Low BSFC

Low BSFCLow BSFC, Low EmissionsLow BSFC, Low Emissions

EPA Tier 2Low BSFC, Low Emissions

Low BSFCLow BSFC, Low Emissions

EPA Tier 2EPA Tier 1, Low BSFC,

Low EmissionsEPA Tier 2

EPA Tier 2, Low BSFCEPA Tier 2, Low BSFC

Generator SetModel

C9 ACERTTM

C9 ACERTC15 ACERT

C15 ACERT

C15 ACERT

C15 ACERT

C15 ACERT

C18 ACERTC18 ACERTC27 ACERTC27 ACERTC27 ACERTC27 ACERT

3508C32 ACERT

3508BC32 ACERT

35123512

3512B3512C3512B3516

3516B3516C3516B

3516C-HDC175-16C175-16

1800 rpmStandby

250300350

400

450

500

550(ESP)550600650700750800

900

1000110012501400150015001750200020002250

250027503000

Continuous

400520870890110011451325

980130014701650220033004400

Generator SetModel

35083508B3512

3512B3516

3516B3516B

6CM208CM209CM20

3606360836123616

Prime

42560010001015125012851450

1820242036404840


900 rpm

1200 rpmStandby

2000266040005320

ekW

6 7

ekW


Prime

1525

2020

30504040

Continuous

137517301830223025002750366055907450

276537254190

52406110698078601047513970

Generator SetModel

36066CM25

36088CM259CM25

36123616

12CM3216CM32

6CM328CM329CM32

6CM437CM438CM439CM4312CM4316CM43

720 rpm

600 rpm

514 rpm

Standby

1680

2200

33604440

ekW

CAT DIESEL RATING DEFINITIONS:8 9

Emergency Standby (ESP)Output available with varying load for the duration of an emergencyoutage. Average power output is 70% of the standby power rating.Typical operation is 50 hours per year with maximum expected usageof 200 hours per year. Standby power in accordance with ISO8528and ISO3046.

StandbyOutput available with varying load for the duration of the interruptionof the normal source power. Average power output is 70% of thestandby power rating. Typical operation is 200 hours per year, withmaximum expected usage of 500 hours per year. Standby power inaccordance with ISO8528 and ISO3046.

PrimeOutput available with varying load for an unlimited time. Averagepower output is 70% of the prime power rating. Typical peak demandof 100% of prime - rated ekW with 10% of overload capability foremergency use for a maximum of 1 hour in 12. Overload operationcannot exceed 25 hours per year. Prime power in accordance withISO8528 and ISO3046.

ContinuousOutput available without varying load for an unlimited time. Averagepower output is 70 - 100% of the continuous power rating. Typical peak demand is 100% of continuous rated ekW for 100% of operatinghours. Continuous power in accordance with ISO8528 and ISO3046.

CAT GENERATOR SETS(GAS)

CAT 50 Hz GAS RATINGS

kVA

87106138156156194200213218225225231237237256263281288300319325344350363369394406444450

ekW

7085110125125155160170174180180185190190205210225230240255260275280290295315325355360

Generator SetModel

G3306G3306G3306G3306G3406G3408G3406G3408G3406G3406G3408G3406G3406G3408G3408G3408G3412G3408G3408G3408G3412G3412G3412G3412G3412G3412G3412G3412G3412

Continuous

1500 rpm

11

kVA

469494600619631638906931956963109411561219125612881356138013881431161517001825197519752000200024382500

ekW

375395480495505510725745765770875925975100510301085110411101145129213601460158015801600160019502000

Generator SetModel

G3412G3412G3508G3508G3508G3508G3512G3512G3512G3512G3516G3516G3516G3516G3516

G3516BG3516BG3516BG3516BG3520BG3520BG3520BG3516CG3516EG3516CG3516EG3520CG3520C

Continuous

1500 rpm

Continuous

CAT 50 Hz GAS RATINGS (cont.)

ekW

1270135516952045257527252900342536303860

65201460

1000 rpm

750 rpm

12

CAT 60 Hz GAS RATINGS

Continuous

85100135140150150175210225250255280350375375395425

1250130014001635166019002055

Generator SetModel

G3306G3306G3306G3306G3306G3406G3408G3406G3406G3412G3408G3408G3412

G3412CG3412G3412G3412G3516

G3516BG3516BG3516BG3516CG3516CG3520CG3520C

1800 rpm

ekWStandby

150

260275

310340350375450480

1040

13

Generator SetModel

G3606G3606G3608G3608G3612G3612G3612G3616G3616G3616

G16CM34G3520B

kVA

1588169421192556321934063625428145384825

81501825

CAT 60 Hz GAS RATINGS (cont.)

ekW

14

CAT GAS RATING DEFINITIONS:15

Generator SetModel

G3508G3508G3512G3512G3512

G3516

G3516

G3520C

G3606G3606G3608G3608G3612G3612G3612G3612G3612G3616G3616G3616G3616G3616

G16CM34

Continuous

375400555570600750770815820

1600

11551235154016402310233524652595261530803105328534083480

6520

StandbyThese ratings are applicable for supplying continuous electricalpower (at variable load) in the event of a utility power failure. Nooverload is permitted on these ratings. Natural gas ratings have beenestablished on natural gas with net calorific Low Heat Value (LHV) ofapproximately 35.6 mJ/m3 (905 Btu/ft3) and 80 methane number (MN).

ContinuousOutput available without varying load for an unlimited time.Continuous power in accordance with ISO8528, AS2789, and BS5514.Natural gas ratings have been established on natural gas with netcalorific Low Heat Value (LHV) of approximately 35.6 mJ/m3 (905 Btu/ft3) and 80 methane number (MN).

ekW Generator output at 0.8 pfkVA Generator output

Standby

900 rpm

1200 rpm

720 rpm

OLYMPIAN 50 Hz RENTAL UNIT RATINGS

Prime

20274575100135200250

CAT 60 Hz RENTAL UNIT RATINGS

1800 rpm

3-Phase Output* - 1500 rpmStandby

*All ratings at 0.8pf

kVA

ekW

14

OLYMPIAN GENERATOR SETS(DIESEL)

16

Model

XQ20XQ30XQ45XQ60XQ80XQ100XQ230XQ300XQ400XQ500XQ600XQ750XQ1000XQ1500XQ2000

Prime

18274154709021027536545554568091013601825

Standby

2030456080

100230300400500600750

100015002000

Model

XQE20XQE27XQE45XQE75XQE100XQE135XQE200XQE250

3-Phase Output**

OLYMPIAN INTERNATIONAL DIESEL RATINGS

*Ratings at 1.0 pf and 32C (90F).

60 Hz - ekW 50 Hz - kVAPrime

5.571013152424323240404545585872728096

50 Hz - kVA60 Hz - ekW

**Ratings at 0.8 pf and 43C (100F).

OLYMPIAN INTERNATIONAL DIESEL RATINGS (cont.)

18 19

Standby

68691114

16.517.52426263535444450506464808088105

Standby

131720303040404444555572729494

100112.5

rpm

15001500300030001500150015003000300015001500150015001500150015001500150015001500150015001500

Prime

12

15.51827273636404050506565858590

100

Standby

131720

27.227.2303040404545506060

70.470.496100100132132

148150.4200

Standby

13.8182222303530303333444450505565658888100110110150150165165

220250275

rpm

15001500150030003000300015001500150015001500150015001500150015001500150015001500150015001500150015001500

150015001500

Prime

1215.5182424272736364040455555646488

90.490.4120120

135.2

180

Prime

12.516.5202727303040404545506060808090100100135135150150

200230250

Generator SetModel

GEP13.5-2GEP18-2GEP22.2

GEPH22-2GEPH30-2GEPH35-2GEP30-1GEP30-2GEP33-1GEP33-2GEP44-2GEP44-5GEP50-2GEP50-5GEP55-1GEP65-2GEP65-5GEP88-1GEP88-2GEP100GEP110

GEP110-2GEP150

GEP150-2GEP165

GEP165-2GEH175GEH188GEH220GEH250GEH275

Single Phase Output*rpm

180018001800

18001800180018001800180018001800180018001800180018001800

rpm

180018001800

180018001800180018001800180018001800180018001800180018001800180018001800

180018001800

Generator SetModel

GEK6SP-1GEK8SP-1

GEKH6SP-1GEKH9SP-1GEP11SP-2GEP14SP-2GEP16SP-2GEPH17SPGEPH24SPGEP26SP1GEP26SP2GEP35SP2GEP35SP5GEP44SP1GEP44SP2GEP50SP2GEP50SP5GEP64SP1GEP64SP2GEP80SP1GEP80SP2GEP88SP1GEP105SP1

StandbyThese ratings are applicable for supplying continuous electrical power(at variable load) in the event of a utility power failure. No overload ispermitted on these ratings. Natural gas ratings have been establishedon natural gas with net calorific value of approximately 36.8 mJ/m3 (988Btu/ft3).

PrimeThese ratings are applicable for supplying continuous electrical power(at variable load) in lieu of commercially purchased power. There is nolimitation to the annual hours of operation, and this model can supply 10 percent overload power for 1 hour in 12 hours.

OLYMPIAN DIESEL RATING DEFINITIONS:

OLYMPIAN GENERATOR SETS(GAS)

20

OLYMPIAN (INTERNATIONAL) 50Hz GAS RATINGSStandby ekW Prime ekW

LP

1324

16.530

Natural

11.824

1530

LP

11

14

rpm

15003000

15003000

Natural

10

12.5

Single Phase output*

3-Phase output**

Standby ekW Prime ekWLP

1625

1625

Natural

1525

1525

LP

13.5

13.5

rpm

18003600

18003600

Natural

13

13.5

Generator SetModel

GEUG13S1GEUHG24S1

GEUG16-1GEUHG30-1


3-Phase output**

OLYMPIAN (INTERNATIONAL) 60Hz GAS RATINGS

*Ratings at 1.0 pf and 32C (90F)**Ratings at 0.8 pf and 43C (100F)

22

OLYMPIAN (NORTH AMERICA) 60Hz GAS RATINGS

*Ratings at 1.0 pf and 32C (90F)**Ratings at 0.8 pf and 43C (100F)

Standby ekW Prime ekWLP

1015

17.5253035455575

121520253040506080

Natural

1015

17.5253035

42.55570100

121520253040456075100125150

LP

913.5

27

31.5405064

1113.5

2736

42.55568

Natural

91327

31.536506085

1113.2

2736

37.555

63.585114

134.4


23

3-Phase output**

rpm

1800180036003600180018001800180018001800

180018003600180018001800180018001800180018001800

Generator SetModel

GEUG13S1GEUHG24S1

GEUG16-1GEUHG30-1

Generator SetModel

G10U3SG15U3S

G17.5UH3SG25UH3SG30F3SG35F3SG45F3SG55F3SG75F3SG100F3S

G12U3G15U3

G20UH3G25UH3G30F3G40F3G50F3G60F3G80F3G100F3G125G1G150G1

StandbyThese ratings are applicable for supplying continuous electrical power(at variable load) in the event of a utility power failure. No overload ispermitted on these ratings. Natural gas ratings have been establishedon natural gas with net calorific value of approximately 36.8 mJ/m3 (988 Btu/ft3).

Prime These ratings are applicable for supplying continuous electrical power(at variable load) in lieu of commercially purchased power. There is nolimitation to the annual hours of operation, and this model can supply 10 percent overload power for 1 hour in 12 hours.

OLYMPIAN GAS RATING DEFINITIONS:

Single-Phase

V x I x P.F.1000

V x I1000

KW .746 x EFF. (Gen)

HP x .746EFF. (Mot.)

HP x .746V x P.F. x EFF.

KW x 1000V x P.F.

KVA x 1000V

Poles x RPM120

V x I x 1-(P.F.)21000

100 (VNL-VFL)VFL

Three-Phase

1.732 x V x I x P.F.1000

1.732 x V x I1000



HP x .7461.732 x V x EFF. x P.F.

KW x 10001.732 x V x P.F.

KVA x 10001.732 x V

Poles x RPM120

1.732 x V x I x 1-(P.F.)21000

100 (VNL-VFL)VFL

ELECTRICAL TABLES

To Obtain

Kilowatts

KVA

Horsepower required when KWknown (Generator)

KW input when HP known (Motor)

Ampheres when HP known

Ampheres when KW known

Ampheres when KVA known

Frequency(c.p.s)

ReactivekVA (KVAR)

% VoltageRegulation

Direct Current

V x I1000



HP x .746V x EFF.

KW x 1000V

100 (VNL-VFL)VFL

Alternating Current

ELECTRICAL TABLE ABBREVIATIONS:

V - voltage in voltsI - current in ampheresKW - power in kilowatts (actual power)KVA - kilovolt-ampheres (apparent power)HP - horsepowerRPM - revolutions per minute

KVAR - reactive kilovolt-ampheresEFF. - efficiency as a decimal factorNL - no loadFL - full loadP.F. - power factorNote: DC KW = DC KVA

24 25

THREE-PHASE CONNECTION SYSTEMS REDUCED VOLTAGE STARTERS

Type of Starter

Full Voltage Starter

Auto Transformer 80% Tap 65% Tap 50% Tap

Resistor StarterSingle Step

(adjusted for motorvoltage to be 80%

of line voltage)

Reactor 50% Tap 45% Tap 37.5% Tap

Part Winding (low-speed motors only)

75% Winding 80% Winding

Motor Voltage(% Line Voltage)

100

806550

80

5045

37.5

100100

Line Current (% Full Voltage)Starting Current

100

684630

80

5045

37.5

7550

Starting Torque(% of Full Voltage)

Starting Torque

100

644225

64

252014

7550

26 27

Characteristic

Starting Line Currentat Same Motor

Terminal Voltage

Starting PowerFactor

Power Draw fromLine During Starting

Torque

Smoothnessof Acceleration

Relative Cost

Ease of Control

Maintenance

Line Disturbance

Autotransformer

Least

Low

Low

Increases slightlywith speed

Motor momentarilydisconnected from

line from start to run

Average

Same

Same

Reactor

Low

Average

Same

Same

Two-Step Part Winding

Low

Increases slightlywith speed

Smooth

Less than others

No provision for adjustment ofstarting current

Less than others

More than others

More than autotransformer type

Varies with conditions and type of load

*Resistor starting adds considerable kW load to generator set. Total power required includes the motor kW and the kW which is lost as heat in the resistor.

The series resistors account for a higher than normal starting power factor.

COMPARISON OF REDUCED VOLTAGE STARTING METHODS

More than autotransformer type

Increases rapidly with speed

Smooth. Transfer made with little change in

motor terminal voltage

Primary Resistor

High*

Lower in small size-otherwise equal

Same

Same

Engine room ventilation can be estimated by the following formulas,assuming 100F (38C) ambient air temperature:

V (cfm) = H + Engine Combustion Air0.070 x 0.24 x T

V (m3/min) = H + Engine Combustion Air1.099 x 0.017 x T

V = Ventilation air (cfm) (m3/min).H = Heat radiation (Btu/min) (kW).

T = Permissible temperature rise in engine room (F) (C).Density of air at 100F = 0.070 lb/cu ft (1.099 kg/m3).Specific heat of air = 0.24 Btu/F (0.017 kW/C).

ENGINE ROOM VENTILATION28 29

Day Tank Sizing

Tank Size (gal) = Rated BSFC (lb/hphr) x Rated HP x Load Factor7.076 (lb/gal)

x Hours Between Refilling+ Reserve Requirement

ORRule of Thumb for tank size with 25% reserve0.056 x Ave. BHP demand x Hours between refills x 1.25 = gal.0.27 x Ave. BKW demand x Hours between refills x 1.25 = liters.

Note: Additional tank capacity required for cooling of recirculated fuel in unit-injectedengines. Tank should be located below level of injectors or nozzles.

On-Site Power RequirementsBased on 100,000 sq ft. of office bldg., etc and 40N. Latitudes

Electric Requirements600 kW continuous load(Air conditioning is absorption)Use three - 300kW units(2 prime and 1 standby)

Refrigeration One ton refrigeration = 200 Btu/min = 12,000 Btu/h One Boiler hp = 33,475 Btu/h One ton compressor rating = One engine hp Auxiliary air conditioning equipment requires 1/4 hp/ton of compressor rating

Ice Plant Complete power requires 4-5 hp per daily ton capacity

Air Compressor hp = 1/4 x cu ft m/min at 100 psi

Increase bhp 10% for 125 psiDecrease bhp 10% for 80 psi

FUEL SYSTEM - DIESEL

Air Conditioning and Compressor400 tons prime loadUse two - 200 hp engines(No Standby)

Unitmm2

in2

m2

ft2

mm21

645.1610 00000

92903

in20.00155

11550144

m2

0.000 645 161

0.0929

ft2

0.006 94410.764

1

Area

CONVERSION FACTORS

mm1

25.4304.8914.41000

100 0000160 9340

in.03937

11236

39.370139 370.163 360

ft.0032810.083 33

13

3.280 843208.84

5280

yd.0010940.027 780.333 33

11.093 611093.61

1760

m.001

0.02540.30480.9144

11000

1609.34

km.0000 010.000 030.000 300.000 91

0.0011

1.609 34

mi

0.000 620.621 37

1

1 sq mile = 640 acres1 acre = 4840 yd2

1 cir mil = 7.854 x 10-7in21 cir mil = .7854 x mils2

1 cir mil = 5.067 x 10-6cm2

LengthUnitmminftydm

kmmi

1 grain = 0.064799 gram

Tons

Weight

30 31

Kilograms1

0.028350.4536907.21,0161,000

Unit1 Kilogram

1 Ounce1 Pound

1 Short Ton1 Long Ton

1 Metric Ton

OuncesAvoirdupois

35.27116

32,00035,84035,300

PoundsAvoirdupois

2.2050.0625

12,0002,2402,205

Short1

1.121.102

Long

0.89291

0.9842

Metric

0.90721.016

1

CONVERSION FACTORS (cont.)

Unitmm/Hgin./Hgin. H20ft. H20lb/in2

kg/cm2

barkPa

mm/Hg(0C)

125.4

1.868 2722.419251.7149735.559750.0627.500 62

in./Hg(0C)

0.039 371

0.07 3550.882 652.036 0228.95929.530

0.295 30

in. H20(60F)0.535713.61

112

27.70395

401.84.01835

ft. H20(60F)

0.044641.134

0.083 331

2.30932.8433.49

0.33486

J/min1055.0001.350444791

14412759997

59.9968

Metric hp0.023910.000031.014

0.00002261

1.359620.00136

kW0.01758430.00002260.74570

0.00001660.73549

10.001

W17.58430.0226745.7

0.016668735.498

10001

Power

Unitin3

ft3

yd3

mm3

m3

U.S.gallmp gal

literacre-ft

in3

11728

466566.1 x 10-5

61 023.7231

277.41961.023 7

ft3

0.000 58127

4.0 x 10-8

35.31470.133 680.160 540.035 3143 560

yd3

0.000 020.037 04

1

1.307 950.004 950.005 950.001 311613.33

mm3

16387.128 320 000764 554 858

11,000,000,000

378542045400901000 000

m3

0.000 020.028 320.76455

1

0.003 780.004 55

0.0011233.48

U.S. gal0.004 327.480 52201.974

2.6 x 10-7

264.1921

1.200 950.264 17325 851

lmp gal0.003 615.228 83168.178

2.2 x 10-7

219.9691

0.219 97271 335

liter0.0163928.3169764.555

1.0 x 10-6

10003.785 414.546 09

1

1 board-foot = 144 in3 1 bushel = 1.244 ft3 1 bushel = 4 pecks

Volume and CapacityVolume and Capacity

Pressure and Head

Btu/minft-lb/min

HorsepowerJoules/minMetric hpKilowatt

Watt

Btu/min1

0.0012842.4560.0009541.827

590.05687

ft-lb/min778.2

1330000.7405325504425044.25

hp0.023580.00003

10.0000223

0.986321.341020.00134

lb/in2

0.019 340.491 150.036 130.433 52

114.225714.504

0.145 038

kg/cm2

0.001 360.034 530.002 540.030 4790.070 31

11.019 72

0.010 1972

bar0.001 330.033 860.002 490.029 890.068 950.980 67

10.010 000

Atmospheres101.4Pa (14.7 psi)

0.001 3150.033 420.002 460.029 500.068 050.967 840.98692

0.009 869 20

kPa

0.2492.9896.89598.067101.325

1

32 33

U.S. gal/min

1694.5448.84.40315.85

million U.S.gal/day

0.001 4401

0.06460.006 340.0228

ft3/s0.002 23

1.5471

0.009 810.0353

m3/h0.2270157.73101.9

13.60

L/s0.0631

43.828.320.2778

1

Flow

UnitU.S. gpm

1 million gal/dayft3/sm3/hL/s

BTUCalorie

Foot-PoundJoule

KilocalorieTherm

Btu1

0.003970.0012850.0009483.96825100,000

Cal252

10.3237650.23895

1000396.8254

ft-lb778

3.088661

0.737453089

128.5347

J1055.056

4.1871.356

14185

94.78169

Kcal0.2520.001

0.0030890.000239

10.39682

Therm0.00001

2.5191

1 Therm = 1,000,000 BtuBtu/ft2/min = 0.1220 Watts/in2

Btu/ft3 = 8.899 kg-cal/m3Btu/lb = .5556 kg-cal/kg

Energy

MCFD = 1000 ft3/day MMCFD = 1,000,000 ft3/day lb/bhp-hr x 607.73 = g/kW-hr NEMA Code LetterABCDEFGHJKLMNPRSTUV

Starting skVA/hp

0.00 - 3.143.15 - 3.543.55 - 3.994.00 - 4.494.50 - 4.995.00 - 5.595.60 - 6.296.30 - 7.097.10 - 7.998.00 - 8.999.00 - 9.99

10.00 - 11.1911.20 - 12.4912.50 - 13.9914.00 - 15.9916.00 - 17.9918.00 - 19.9920.00 - 22.39

22.40

Identifying Code Letters on AC Motors

Note: Code letters apply to motors up to 200 HP.

Temperature ConversionF = (1.8 x C) + 32

C = 0.5555 (F - 32)

Angle1 quadrant = 90 degrees1 quadrant = 1.57 radians

1 radian = 57.31 degree = 60 minutes

1 minute = 2.9 x 10 radians

34 35

36 NOTES 37

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(Listing does not include all Caterpillar offices.)

Email: [email protected]

LEXE2576-08 2007 Caterpillar All Rights Reserved CAT, CATERPILLAR, their respective logos, Caterpillar Yellow and the POWER EDGE tradedress, as well as corporate and product identity used herein, are trademarks of Caterpillar and may not be used without permission.

If you have any questions, please consult your local Caterpillar dealer. If you need assistance in finding a dealer, consult one of our Caterpillar offices.

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