Optional AC Power Plant Curves | Miller Electric Big Blue 251D

4-7. Optional AC Power Plant Curves

The ac power curves show the gen- erator power in amperes available at the single-phase 120/240 volt or three-phase 240 volt terminals.

A. 7.5 KVA/KW Single-Phase AC Power Plant (No Weld Load)

B. 10 KVA/KW Three-Phase AC Power Plant (No Weld Load)

AC VOLTS

280

260

240

220

200

180

AC AMPERES

rsb13.1 12/94 - 134 636-A / 206 032

OM-480 Page 13

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Miller Electric Big Blue 251D manual Optional AC Power Plant Curves

Contents

Description ProcessesVisit our website at OM-480128 576AC January Engine Driven Welding Generator From Miller to You Table of Contents Options and Accessories Warranty Arc Welding Hazards Symbol Usage Engine Hazards Compressed Air Hazards California Proposition 65 Warnings Principal Safety StandardsEMF Information Radiation can cause interference − Consignes DE Sécurité − Lire Avant Utilisation Signification des symbolesUN Choc Électrique peut tuer LES Fumées ET LES GAZ peuvent être dangereux DES Particules Volantes peuvent blesser les yeux LE Soudage peut provoquer un in- cendie ou une explosionDES Pièces Chaudes peuvent provoquer des brûlures graves LE Bruit peut affecter l’ouïe DES Organes Mobiles peuvent provoquer des blessures ’EXPLOSION DE LA Batterie peutLA Chaleur DU Moteur peut pro- voquer un incendie ’AIR Comprimé peut provoquer des blessures Information sur les champs électromagnétiques Principales normes de sécurité − Definitions Symbols And Definitions Dimensions, Weights, And Operating Angles − SpecificationsWeld, Power, And Engine Specifications Exceeding duty cycle can damage unit and void warranty Curve shows typical fuel use under weld or power loadsFuel Consumption Duty Cycle And Overheating Volt-Ampere Curves AC Generator Power Optional AC Power Plant Curves Connecting The Battery − InstallationInstalling Welding Generator Engine Prestart Checks Installing Muffler PipeStop engine and let cool Fuel Do not use gasoline. Gasoline Connecting To Weld Output Terminals Installing Ether Cylinder Optional Ether Starting Aid 150 ft 200 ft 250 ft Selecting Weld Cable Sizes350 ft 400 ft 45 m 60 m 70 m 90 m 105 m 120 m Put terminals Controls See Section − Operating the Welding Generator Remote A/V Control Description Of Front Panel Controls See SectionStop engine and fix trouble if either light goes on Do not use Ether if engine is running X 15 a + 120 V x 10 a = 3.0 kVA/kW OM-480 − Operating Auxiliary EquipmentVolt Duplex And Optional Gfci Receptacles 240 V 15 a AC Receptacle RC1 Volt Duplex Receptacle OptionalCircuit Breakers CB1 And CB2 X 10 a + 120 V x 5 a = 3.0 kVA/kW Connecting Optional AC Power Plant 240 Volt Twistlock Receptacle Optional − Maintenance and Troubleshooting Maintenance Label Servicing Air Cleaner To change oil and filter Servicing Fuel And Lubrication SystemsTo replace primary fuel filter To replace secondary fuel filter Models With Automatic Idle Optional Adjusting Engine SpeedStandard Models Full Empty Overload Protection Servicing Optional Ether Starting Aid Troubleshooting Inspecting And Cleaning Optional Spark ArrestorStop engine and let cool. Reinstall cleanout plug Welding Check connections to ac power plant see Section Generator PowerEngine Maximum see Section Circuit Diagram For Welding Generator − Electrical Diagram Welding Generator − RUN-IN ProcedureWetstacking Procedure at less than Run-In Procedure Using Load BankStop engine Do not touch hot exhaust From flammables Do not Perform Bank/grid Run-In Procedure Using Resistance GridFrom flammables Do not perform run-in Grounding Generator To Truck Or Trailer Frame − Generator Power GuidelinesSelecting Equipment How Much Power Does Equipment Require? Grounding When Supplying Building SystemsEarth ground if supplying Amperes x Volts = Watts Approximate Power Requirements For Farm/Home Equipment Approximate Power Requirements For Industrial MotorsIndustrial Motors Rating Starting Watts Running Watts Farm/Home Equipment Rating Starting Watts Running Watts Contractor Rating Starting Watts Running Watts Approximate Power Requirements For Contractor Equipment How Much Power Can Generator Supply? Power Required To Start MotorSingle-Phase Induction Motor Starting Requirements KVA/HP x HP x 1000 = Starting Amperage Work like a Pro Typical Connections To Supply Standby Power Current Load Watts Amperes Selecting Extension Cord Use Shortest Cord Possible OM-480 125 124 123 122 − Parts List120 121 117 116 2526 126 Dia Part Description Quantity Mkgs 128 111 Panel, Front w/Components -1Item Panel, Front w/Components -1Item 111 Cont’d Generator Generator -1Item Includes 114Page Page Support ServiceYour distributor also gives Miller Electric Mfg. Co To locate a Distributor or Service Agency visitFor assistance in filing or settling claims, contact Your distributor and/or equipment manufacturer’s