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© 2011 Ericson Manufacturing, Willoughby, Ohio 44094 ERICSON MANUFACTURING TRAINING MODULES TEMP POWER BASICS PART 1 of 2 Modules A, B & C © 2011 Ericson Manufacturing, Willoughby, Ohio 44094 MODULE A BASIC INFORMATION ABOUT TEMP POWER MODULE B Selecting the RIGHT TEMP POWER MODULE C The 5 Easy Steps to selecting TEMP POWER PRODUCTS Temp Power Temporary Power Products are any devices used to control electrical energy for short term durations and are not part of a building’s PERMANENT Electrical system. These devices can include: Electrical Extension Cords, Electrical “Panels”, Electrical Voltage Transformers and a variety of connection electrical devices. Temp Power Temporary Power Product Input -Primary -Line Power block • Transforms • Distributes • or Both Output -Secondary -Load Temp Power voltage “the size of the power” 600, 480, 277 240, 208, 120 volts Temp Power voltage “the size of the power” 600, 480, 277 240, 208, 120 volts amperage “the force of the power” 15 to 400 amps Temp Power voltage “the size of the power” 600, 480, 277 240, 208, 120 volts amperage “the force of the power” 15 to 400 amps phase “the pipelines of the power” 1 phase 3 phase Temp Power AC vs DC Voltage AC or Alternating Current is generator created. voltage “the size of the power” DC or Direct Current is created by Battery or AC/DC power supply. Tools, motors, pumps, light bulbs, switches, fuses, circuit breakers are all rated or DESIGNED to operate at a given voltage or range of voltages Household Automobile Jobsite Mostly 120VAC 12 VDC 600 or 480 VAC Some 240VAC 208 or 240 VAC Temp Power amperage “the force of the power” Symbol = A Motors to light bulbs require or PULL a certain amount of amps through the cord. Amps are added on a circuit and called the “load”. Household Jobsite 100 Watt Light bulb – 1.5 amps Drill or grinder – 5 to 18 amps Electric Range – 50 amps Stringlight – 10 to 18 amps Temp Power phase “the pipelines of the power” Symbol = ø The basic count of hot lines in a single circuit. 1 Phase 120V = 1 Hot , 1 neutral & 1 safety ground 1 Phase 240V = 2 Hots, 1 neutral & 1 safety ground 3 Phase 208V = 3 Hots, 1 neutral & 1 safety ground 3 Phase 480V = 3 hots & 1 Neutral/Ground Bonded Temp Power Electric circuits require a hot and return (neutral) side to complete the circuit or loop. Source Neutral Return Hot + - Temp Power Rule: Electric wires (conductors) are sized or rated to carry a maximum amperage or current. Amp chart is NEC 400 – wire sizing #14 awg = 15 amps #12 awg = 20 amps #10 awg = 30 amps # 6 awg = 50 amps Note: Wire “size” goes down as physical wire gets larger and can carry more amps Temp Power Rule: Too much current ( amps ) can burn up circuits – fire hazard. Protection – Circuit Breakers & GFCI Voltage Source Wire size too small Temp Power Rule: Too much current ( amps ) can burn up circuits – fire hazard. Protection – Circuit Breakers & GFCI Voltage Source Circuit Breaker or Fuse PROTECTS the equipment or wiring Temp Power Rule: Too much current ( amps ) can burn up circuits – fire hazard. Protection – Circuit Breakers & GFCI Voltage Source Circuit Breaker or Fuse PROTECTS the equipment or wiring CODE RULE: Circuit Breakers or Fuses must be rated for the smallest rated part of the circuit. Temp Power Protection Circuit Breakers protect equipment and wiring. - NOT a life safety device! - Rated in full amps ( 15, 20, 30, 50 etc) - Must be on all branch circuits - Must be rated correctly - Does not do the same job as a GFCI Temp Power Protection GFCIs protect people. - Ground Fault Circuit Interrupter - Quick life saving device - Sensitive to poor connections, cheap cordage, moisture Temp Power Protection Circuit Breakers protect equipment and wiring. - Not a life safety device - Rated in full amps ( 15, 20, 30, 50 etc) GFCIs protect people. - 6 ma trip point ( 6 millionth of an amp) - Quick life saving device - Sensitive to poor connections, cheap cordage, moisture Temp Power Rule: Electrical current will find any path to ground – Including through you! Protection - Circuit Breaker ONLY Electric current flows to and from tool as normal… Voltage Source H Circuit Breaker N Ground Temp Power Rule: Electrical current will find any path to ground – Including through you! Protection - Circuit Breaker ONLY Voltage Source H Circuit Breaker N Ground PROBLEM ! TOOL DEVELOPS AN ELECTRIC FAULT and SENDS ENERGY THROUGH THE WORKER TO GROUND ! Temp Power Rule: Electrical current will find any path to ground – Including through you! Protection - add a GFCI GFCIs watch for a mis-match in current on the Hot and Neutral conductors. Voltage Source H Circuit Breaker GFCI N Ground CODE RULE: GFCIs are required for all 15, 20 and 30 amps 120V rated circuits on jobsites. Temp Power Transform vs Distribution Distribution – “Splitting Phases” Temp Power Transform vs Distribution Distribution – “Splitting Phases” 120 volts ( 1 phase ) – 1 set of 120 V source 1 Hot, 1 Neutral & 1 Safety earth ground Temp Power Transform vs Distribution Distribution – “Splitting Phases” 120 volts ( 1 phase ) – 1 set of 120 V source 1 Hot, 1 Neutral & 1 Safety earth ground 240 volts ( 1 phase ) – 2 sets of 120 V sources 2 Hots, 1 shared Neutral & 1 Ground Temp Power Transform vs Distribution Distribution – “Splitting Phases” 120 volts ( 1 phase ) – 1 set of 120 V source 1 Hot, 1 Neutral & 1 Safety earth ground 240 volts ( 1 phase ) – 2 sets of 120 V sources 2 Hots, 1 shared Neutral & 1 Ground 208 volts ( 3 phase ) – 3 sets of 120 V sources 3 Hots, 1 shared Neutral & 1 Ground Temp Power Transform vs Distribution Transforming Power 480 or 600 volts is available at site. Tools can’t run on “commercial power” levels. The voltage requires transforming to reach 240, 208 or 120 volt ranges. Temp Power Power block Input • 1510-P • 120V • 15 amps • 1 phase Distribute only Output • 1610-C • 120V • 15 amps • 1 Phase Temp Power Power block Cordset Input • 1510-P • 120V • 15 amps • 1 phase Distribute only Output • 1610-C • 120V • 15 amps • 1 Phase Temp Power Oscar Power block Input • 240 Volts • 1 Phase • 50 Amps •Distributes Output • 120 Volts • 1 phase • 6 circuits @ 20 amps each Temp Power Oscar ® Power block Input • 240V • 1 Phase • 50Amps •Distributes Output •120V •1 phase •6 circuits @ 20 amps each Temp Power Power block Input • 208V • 3 Phase • 200 Amps •Distributes Output • 120V • 1 phase • 18 circuits @ 20 amps each Temp Power Power block Input • 208V • 3 Phase • 200 Amps •Distributes Output • 120V • 1 phase • 18 circuits @ 20 amps each Temp Power Jobsite Problem: How do you run a tool rated at 120 Volts if only 480 Volts are available? Answer: Transform the power to 120V. Transformers either step up or step down voltage based on the design. Temp Power Transform section Input • 480V • 3 Phase • 60 Amps Distribution section Output •120/208V •3 phase •(18) 1 phase circuits @ 20 amps each Temp Power Basic Rule: 3 Phase input into a transformer derives 3 phase output. 1 Phase input derives 1 phase output. 480V 3 phase INPUT = 120/208V 3 phase OUTPUT 480V 1 phase INPUT = 240V 1 Phase OUTPUT Temp Power Size Matters: Transformers are rated in KVA – this is the size rating as to the amount of amps they can produce. Every 15 KVA = Max of (6) 20 amp 120 V circuits Temp Power How to determine the right Temp Power Product Step 1 – Determine the NEED ( Distribute or Transform) Step 2 – Determine the AVAILABLE POWER - Volts Amps Phase Step 3 – Determine the EXPECTED ELECTRICAL OUTPUT Temp Power How to determine - con’t Step 4 – Determine the CONNECTIONS How will they connect in and out Be specific Use NEMA values Volts amps phase Step 5 – Determine the BUDGET Distribute Point to Point Only Cordsets Distribute / Split Phases / GFCI Protection Oscars Gen Cords Big-E Jr Big-E Distribute Multiple Taps Distribute / High Power ( 480 or 600 V ) “Y” “W” 480V Big-E 600V Big-E Power Stringers 6000 7000 8000 Series Transform / Distribute / GFCI Protect Distribute with GFCI Protection GFCI 1060 e-Cart Jr. e-Cart END OF SESSION