ELECTRIC POWER RATINGS GUIDE - Teknoxgroup

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CONVERSIONS FUEL SYSTEM - DIESEL Day Tank Sizing Tank Size (gal) = Rated BSFC (lb/hp•hr) x Rated HP x Load Factor 7.076 (lb/gal) x Hours Between Refilling + Reserve Requirement OR Rule of Thumb for tank size with 25% reserve 0.056 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-injected engines. Tank should be located below level of injectors or nozzles. On-Site Power Requirements Based on 100,000 sq ft. of office bldg., etc and 40°N. Latitudes • Electric Requirements 600 kW continuous load (Air conditioning is absorption) Use three - 300kW units (2 prime and 1 standby) • Air Conditioning and Compressor 400 tons prime load Use two - 200 hp engines (No 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 psi Decrease bhp 10% for 80 psi 28
CONVERSIONS <strong>ELECTRIC</strong>AL TABLES To Obtain Alternating Current Single-Phase Three-Phase Direct Current kW V x I x P.F. 1000 1.732 x V x I x P.F. 1000 V x I 1000 kVA V x I 1000 1.732 x V x I 1000 Horsepower required when kW known (Generator) kW .746 x EFF. (Gen) kW .746 x EFF. (Gen) kW .746 x EFF. (Gen) kW input when HP known (Motor) HP x .746 EFF. (Mot.) HP x .746 EFF. (Mot.) HP x .746 EFF. (Mot.) Ampheres when HP known HP x .746 V x P.F. x EFF. HP x .746 1.732 x V x EFF. x P.F. HP x .746 V x EFF. Ampheres when kW known kW x 1000 V x P.F. kW x 1000 1.732 x V x P.F. kW x 1000 V Ampheres when kVA known kVA x 1000 V kVA x 1000 1.732 x V Frequency Hz Poles x RPM 120 Poles x RPM 120 Reactive kVA (kVAr) V x I x 1-(P.F.) 2 1000 1.732 x V x I x 1-(P.F.) 2 1000 % Voltage Regulation 100 (V NL -V FL ) V FL 100 (V NL -V FL ) V FL 100 (V NL -V FL ) V FL <strong>ELECTRIC</strong>AL TABLE ABBREVIATIONS: V - voltage in volts I - current in ampheres kW - power in kilowatts (actual power) kVA - kilovolt-ampheres (apparent power) HP - horsepower RPM - revolutions per minute kVAr - reactive kilovolt-ampheres EFF. - efficiency as a decimal factor NL - no load FL - full load P.F. - power factor Note: DC kW = DC kVA 29
Page 1: ELECTRIC POWER RATINGS GUIDE Genera
Page 5 and 6: CAT ® GENERATOR SETS DIESEL
Page 7 and 8: DIESEL 50 HZ CAT 50 Hz DIESEL RATIN
Page 9 and 10: DIESEL 60 HZ CAT 60 Hz DIESEL RATIN
Page 11 and 12: DIESEL RENTAL POWER RATINGS CAT 60
Page 13: DIESEL RATINGS DEFINITIONS Prime Po
Page 16 and 17: GAS 50 HZ CAT 50 Hz CONTINUOUS GAS
Page 18 and 19: GAS 60 HZ CAT 60 Hz CONTINUOUS GAS
Page 21 and 22: EMCP 4
Page 23 and 24: EMCP 4 EMCP 4.3 The EMCP 4.3 furthe
Page 26 and 27: SYSTEMS PRODUCTS Paralleling Switch
Page 28: CONVERSIONS RATINGS GUIDE
Page 33 and 34: CONVERSIONS REDUCED VOLTAGE STARTER
Page 35 and 36: CONVERSIONS ENGINE ROOM VENTILATION
Page 37 and 38: CONVERSIONS CONVERSION FACTORS Flow
Page 39 and 40: CONVERSIONS CONVERSION FACTORS m 3
Page 41 and 42: PRODUCT SUPPORT PRODUCT SUPPORT DEF
Page 43 and 44: PRODUCT SUPPORT CUSTOMER SUPPORT AG

ELECTRIC POWER RATINGS GUIDE - Teknoxgroup

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