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  • Cable Size Calculator AS/NZS 3008 jCalc jCalc

    Cable impedance calculation. The impedance is calculated as Z c = R c 2 X c 2. This method calculates the impedance for the worse case power factor i.e. when the cable and load power factor is the same. The cable sizing calculator uses the resistance Rc from Table 35 in AS/NZS .

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  • kVA (Single and Three Phase) Calculator

    Electrical. Single Three Phase Line kVA calculator is an online tool used in electrical engineering to measure the unknown quantity by two known quantities applied to the below formulas for single phase and three phase connection. To calculate kVA you need to enter the known values of voltage and the current into the respective fields.

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  • Generator Sizes and Types for Home or Business

     · Survival appliances plus family room home office kitchen and laundry room. 25 kW. A mini-power plant that can run a small to mid-sized home or business. All of the above plus an air conditioning system. 30 kW and up. A mini-power plant that can run a mid-sized to large home or business. All of the above and more.

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  • NEC Commercial Electrical Exam 2011 Exam 2 Questions 1-

    GFCI protection i required for _______. All 125- voltm 20 ampere receptacles in commercial kitchens. Given a 75 KVA transformer with primary voltage of 480 volts 3-phase 3-wire has a secondary voltage of 120/208 volts 3-phase 4-wire. The transformer primary is protected at 225 amperes.

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  • Fuel and Energy Conversion and Equivalence Chart

     · dry. A cord of wood is a rough measuring unit it is a stack of wood 4 feet high 8 feet long and 4 feet wide. A "good" cord of wood will be tightly packed. Pellet fuels are usually made from sawdust. The Btu content will therefore vary depending on the type of wood that the sawdust is from.

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  • HOW TO CALCULATE BREAKER SIZE WIRE SIZE AND

     · Seldom used on 115 voltage 12 800 100 amp # 2 Seldom used on 115 voltage 18 400 125 amp #1/0 Seldom used on 115 voltage 23 000 150 amp #2/0 Seldom used on 115 voltage 27 600 200 amp #3/0 Seldom used on 115 voltage 36 800 Most electric furnaces have resistance elements divided into banks totaling near 11 000 watts. 60 amp is correct for such use.

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  • Estimating your Power Demands Power Consumption

    Multiply the amps by the hours and you get the result of 1.2 amp-hours per day. You use three 20 watt 12 volt lights for about four hours each night. The power consumption for each light we worked out earlier to be 1.67 amps. So for three lights we calculate a current draw of 5 amps. So to calculate the power consumption we multiply 5 amps by 4

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  • Energy Measurements and Conversions

     · 200 watts (Wikipedia). 1 watt = 1 joule per second 1 watt = 3.412 Btu per hour 1 Btu per hour = .293 watts 1 kilowatt (kW) = one thousand watts 1 kilowatt = 3 412 Btu per hour 1 kilowatt = 1.341 horsepower 1 horsepower = .746 kilowatts 1 megawatt (MW) = one million watts 1 gigawatt (GW) = one billion watts

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  • Generator Calculator Generator Sizing and Power

    Note this sizing advice relates to portable generatorsif you are after generator sizing advice for a large stationary generator then you may need to engage an electrician.. To begin you need to know the wattage draw of your appliance(s) and make sure your generator produces enough power to handle that drawlets do it. Step 1 Getting the power information for your appliances

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  • Basic wire sizing guide for US 120 and 240 volts

     · Ex #6 is sometimes mandatory for a 200 foot 12 amp run but can be used up to 300 feet on a 12 amp circuit. Note Each time an additional plug is used in line of the run using 80 safe load subtract an additional 2 from the over all power usage (80 to 78 ). Ex One plug into the wall counts as your one free plug.

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  • Wind Turbine FinalRoyal Academy of Engineering

     · turbines is not that much developed to reach the same levels of results as wind turbines. However the theoretical maximum for marine turbines is still defined by Betz Law with a limit of 0.59 and we will use the following value of this coefficient Power Coefficient Marine Turbine C pm = 0.35 Given this information rearrange the power

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  • What uses more electricity TV or computer

     · Most computers are built to use up to 400 kilowatts of electricity per hour but they usually use less than that. The average CPU uses about as many kilowatts per hour as the typical light bulb. Any computer that s running on a Pentium-type processor uses about 100 kWh. This is

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  • What size wire is needed for electric water heater

     · If you re wiring a 220v 20-amp outlet to run power tools you can use the same 12-gauge wire you would use for a 110-volt 20-amp circuit. Remember that the cable must have an extra hot wire. If the appliance draws 30 amps you need a different type of receptacle and the cable needs to be 10-gauge.

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  • Electricity usage of an OvenEnergy Use Calculator

    Hours Used Per Day Enter how many hours the device is being used on average per day if the power consumption is lower than 1 hour per day enter as a decimal. (For example 30 minutes per day is 0.5) Power Use (Watts) Enter the average power consumption of the device in watts. Price (kWh) Enter the cost you are paying on average per kilowatt hour our caculators use the default value of 0

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  • How to Calculate Your Home s Electrical Load and What It

     · A 100-amp service is good for a home of less than 3 000 square feet that does not have central air-conditioning or electric heat. A home larger than 2 000 square feet that has central air-conditioning or electric heat probably needs a 200-amp service. Use the equation listed above to deduce exactly how many amps your home needs.

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  • Applliance Watts/Amps Calculator

    Watts is generally defined as the amount of power (or energy) an appliance uses (consumes) when operated at its maximum capacity for 1 hour . Amps on the other hand is defined as how much energy an appliance draws or the rate of energy that flows through wire when an appliance is used for 1 hour.

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  • Amps To Watts Calculator Electrical Safety First

    Volts are the measurement used to determine how much force is needed to cause the electric current to flow. In keeping with the earlier example you could think of volts as the water pressure in the hosepipe which makes the water flow. Watts. Amps multiplied by Volts equals Watts which is the measurement used to determine the amount of energy.

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  • Cable Size Calculator Find the size of your Wire/Cable

     · Variables Used-Things that need to be taken into consideration before computing the cable size and voltage drop. Phase SelectionThe first thing you want is the type of circuit phase you are going to use. Generally there are two phasesSingle phase or three phase.

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  • A Guide to Electrical Wire SizesThe Spruce

     · An electrical wire can be the stranded type or a solid form. Every wire except the ground wire is coated with a non-conductive coating of insulated material. Electrical wiring is rated in gauge for its size and amp rating. The electrical wire can come in rolls or on spools. Lengths of wire vary from standard cuts of 50 100 250 500 and 1 000

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  • Kilowatts to amps (A) conversion calculator

     · Amps to kW calculator Use e for scientific notation. E.g 5e3 4e-8 1.45e12. DC kilowatts to amps calculation. The current I in amps (A) is equal to 1000 times the power P in kilowatts (kW) divided by the voltage V in volts (V) . I (A) = 1000 P (kW) / V (V). AC single phase kilowatts to amps calculation

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  • Direction of current flow What is DC

     · transformers used to bring the line voltage down from 5000 V to 240 V before it gets to your home In your home two voltages are available 240 V 120 V. The 240 is used for the high power appliances like the clothes dryer oven etc. The 120 V is for everything else. 17 Circuit overload • if you have too many

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  • WHAT WIRE SIZE DO I NEED FOR A 13.5 KW 240 V. RANGE.

    I just pursched a GE stove top that some vendors rate at 30 amps and others rate at 40 amp service. The specs say it uses 30.1 amps explaing this read more. Vocational Technical or Tra i am installing a new stand alone oven removing the old drop in oven. The new oven requires 60hz/ 3 wire/ 13.5 kw / 120/240 v.

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  • Energy Conversion Calculator Abraxas Energy Consulting

    This field is for validation purposes and should be left unchanged. Headquarter. 1230 Higuera St. San Luis Obispo CA 93401. 805 547 2050. Mailing Address. PO Box 1269. San Luis Obispo CA 93406. For technical support please email us at HelpDesk abraxasenergy.

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  • Kilowatts (kW) to Amps Electrical Conversion Calculator

    How to Convert Kilowatts to Amps. For a single phase AC circuit the formula to convert kilowatts (kW) to amps is amps = (kW 1 000) ÷ volts. It is possible to find the amperage from kilowatts if you know the voltage of the circuit using Watt s law. Watt s Law states that current = power ÷ voltage. In Watt s Law power is measured in

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  • How Much Electricity Does A TV Use Payless Power

     · 0.22 kilowatts x 20 hours = 4.4 kilowatt-hours. Finally you will multiply the kilowatt-hours total by the 12-cent rate you pay monthly 4.4 kilowatt-hours x 12 cents = 52.8 cents. Now simply imagine that number of hours of usage being increased along with the size of the television and the number of televisions used.

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  • WHAT WIRE SIZE DO I NEED FOR A 13.5 KW 240 V. RANGE.

    I just pursched a GE stove top that some vendors rate at 30 amps and others rate at 40 amp service. The specs say it uses 30.1 amps explaing this read more. Vocational Technical or Tra i am installing a new stand alone oven removing the old drop in oven. The new oven requires 60hz/ 3 wire/ 13.5 kw /

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  • How to Calculate Safe Electrical Load Capacities

     · It lists the type serial number voltage whether it is AC or DC the RPM s and most importantly the amperage rating. If you know the voltage and amperage rating you can determine the wattage or total capacity needed for the safe operation of that motor. Heating appliances generally have their wattage ratings printed on the faceplate.

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  • Laundry Planning Handbookbandctech

     · greater than 200 G s). If low or medium speed (80-180 G s) are used a dryer to washer ratio should be 2 1. Thus a 50 lb. washer would require a 100 lb. dryer. If part of the volume of laundry is to be ironed dryer capacity can be reduced. Time for drying a load can be estimated with the following formula

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  • Energy Measurements and Conversions

     · 200 watts (Wikipedia). 1 watt = 1 joule per second 1 watt = 3.412 Btu per hour 1 Btu per hour = .293 watts 1 kilowatt (kW) = one thousand watts 1 kilowatt = 3 412 Btu per hour 1 kilowatt = 1.341 horsepower 1 horsepower = .746 kilowatts 1 megawatt (MW) =

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  • Ampacity Chart Wire Cable Technical Resources Lapp

    Types. 60°C (140°F) TW UF 75°C (167°F) RHW THHW THW THWN XHHW ZW 90°C (194°F) FEP FEPB MI RHH RHW-2 SA SIS TBS THHN THHW THW-2 THWN-2 USE-2 XHH XHHW XHHW-2 ZW-2 Unless otherwise specifically permitted elsewhere in the NEC NFPA70 Code the overcurrent protection for conductor types marked with an asterisk shall not exceed 15A for No. 14

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  • electrician testpart 1 Flashcards Quizlet

    what type cutting die shall be used for intermediate metal conduit type IMC. or have three continuous white stripes on other than green insulation. 200.6. the minimum branch circuit rating for electric ranges with a rating of 8.75 kilowatts or more is.

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  • Electricity usage of a Cell Phone ChargerEnergy Use

    Hours Used Per Day Enter how many hours the device is being used on average per day if the power consumption is lower than 1 hour per day enter as a decimal. (For example 30 minutes per day is 0.5) Power Use (Watts) Enter the average power consumption of the device in watts. Price (kWh) Enter the cost you are paying on average per kilowatt hour our caculators use the default value of 0

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  • kVA (Single and Three Phase) Calculator

    Electrical. Single Three Phase Line kVA calculator is an online tool used in electrical engineering to measure the unknown quantity by two known quantities applied to the below formulas for single phase and three phase connection. To calculate kVA you need to enter the known values of

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  • Cable Size Calculator AS/NZS 3008 jCalc jCalc

    Cable impedance calculation. The impedance is calculated as Z c = R c 2 X c 2. This method calculates the impedance for the worse case power factor i.e. when the cable and load power factor is the same. The cable sizing calculator uses the resistance Rc from Table 35 in AS/NZS .

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  • NEC Commercial Electrical Exam 2011 Exam 2 Questions 1-

    GFCI protection i required for _______. All 125- voltm 20 ampere receptacles in commercial kitchens. Given a 75 KVA transformer with primary voltage of 480 volts 3-phase 3-wire has a secondary voltage of 120/208 volts 3-phase 4-wire. The transformer primary is protected at 225 amperes.

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  • Watts to Amps (A) conversion calculatorRapidTables

     · DC watts to amps calculation. The current I in amps (A) is equal to the power P in watts (W) divided by the voltage V in volts (V) . I (A) = P (W) / V (V). AC single phase watts to amps calculation. The phase current I in amps (A) is equal to the power P in watts (W) divided by the power factor PF times the RMS voltage V in volts (V) . I (A) = P (W) / (PF V (V)). The power factor of

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  • LED Light Bulbs Comparison Charts Eartheasy Guides

    2 days ago · The figures used above are for comparison only and are not exact. Residential energy costs among the various states range from 26.17 cents (Hawaii) to 7.4 cents (Washington) per KWh. The cost per bulb for LEDs may vary. We used the figure of 5.00 (for a 60

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  • kW to Amps Calculator

    Calculation of AC three phase Kilowatts to amps. Line to line Voltage. I (A) = 1000 x P (kW) / (√3 x PF x V L-L (V)). It means that the phase current in amps is computed by 1000 multiplied by the power in kilowatts divided by the square root of three multiplied by the power factor

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  • How much electricity does my stuff use Michael Bluejay

    Assume that your stereo uses 30 watts and your AC uses 3500 watts. (see answer) 1000 Wh will run a 30-watt stereo for 1000 / 30 = 33 hours. 1000 Wh will run a 3500-watt AC for 1000 / 3500 = 0.29 hours (17 minutes). Exercise The power adapter on your laptop computer says its output is

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  • What size wire is needed for electric water heater

     · If you re wiring a 220v 20-amp outlet to run power tools you can use the same 12-gauge wire you would use for a 110-volt 20-amp circuit. Remember that the cable must have an extra hot wire. If the appliance draws 30 amps you need a different type of receptacle and the cable needs to

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  • LED Light Bulbs Comparison Charts Eartheasy Guides

    2 days ago · The figures used above are for comparison only and are not exact. Residential energy costs among the various states range from 26.17 cents (Hawaii) to 7.4 cents (Washington) per KWh. The cost per bulb for LEDs may vary. We used the figure of 5.00 (for a 60 watt equivalent LED bulb) as an average among lighting retailers.

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  • Fuel and Energy Conversion and Equivalence Chart

     · dry. A cord of wood is a rough measuring unit it is a stack of wood 4 feet high 8 feet long and 4 feet wide. A "good" cord of wood will be tightly packed. Pellet fuels are usually made from sawdust. The Btu content will therefore vary depending on the type of wood that the sawdust is from.

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