What are Electrical Calculations. Electrical calculations involve mathematical computations that are crucial in the field of electrical engineering. They are used in the design, installation, operation, and maintenance of electrical systems. Electrical calculators are a collection of online tools that perform common electricalal calculations, such as converting between watts, volts, and amps; sizing wires and cables; and calculating voltage drop. These calculators can be used by electricalians, engineers, and homeowners alike to quickly and accurately solve electricalal problems. An electronic pocket calculator with a seven-segment liquid-crystal display (LCD) that can perform arithmetic operations A modern scientific calculator with an LCD. An electronic calculator is typically a portable electronic device used to perform calculations, ranging from basic arithmetic to complex mathematics.. The first solid-state electronic calculator …Electrical Calculators Org. Search for: Hydroelectric Power Calculator – Hydro Power Plant Formula Equation Calculator. Hydroelectric Power Calculator is a useful online calculation tool used to calculate the power generated in kilowatts and megawatts from the known values of density in kg/m 3, ... Voltage = 10 A x 2 Ω. Voltage = 20 V. Example #2 – Let’s find the power consumed by a device supplied with 5 volts and a current of 2 amps. Power = Voltage × Current. Power = 5 V × 2 A. Power = 10 W. Example #3 – Let’s find the resistance of a circuit if it consumes 20 watts of power when supplied with 5 volts. A. mA. Amps to watts calculator . * Use e for scientific notation. E.g: 5e3, 4e-8, 1.45e12. DC watts to amps calculation. The current I in amps (A) is equal to the power P in watts …Add in the wattage of all permanent appliances, such as washer/dryer, electric range, or water heaters. Subtract 10,000 & multiply this number by .40. Add 10,000. Add the wattage of your AC or heating appliances (furnace + space heaters), whichever is greater – Don’t add both! Divide by 240.A. mA. Amps to watts calculator . * Use e for scientific notation. E.g: 5e3, 4e-8, 1.45e12. DC watts to amps calculation. The current I in amps (A) is equal to the power P in watts …This calculator will help you: 1) Understand various components of your electricity bills. 2) Understand how much you are paying per unit (1 kWh) of electricity bill. 3) Understand how much you spend on various appliances like lights, air conditioner, refrigerator, tube light, computer, set-top box, fan, etc.American wire gauge size calculator and chart. Wire gauge calculations Wire diameter calculations. The n gauge wire diameter d n in inches (in) is equal to 0.005in times 92 raised to the power of 36 minus gauge number n, divided by 39:. d n (in) = 0.005 in × 92 (36-n)/39. The n gauge wire diameter d n in millimeters (mm) is equal to 0.127mm times 92 …The Watt calculator finds the electrical power of a circuit using the given values. Electrical power is given by. P = V ⋅ I P = Electrical power V = Voltage I = Current. Step 2: Click the blue arrow to submit. Choose "Find the Power" from the topic selector and click to see the result in our Physics Calculator! Examples: Find the Power Online electrical calculators for calculations of electricity and electronics. Amps to kW calculator. Amps to kVA calculator. Amps to VA calculator. Amps to volts calculator. Amps to watts calculator. Electricity bill calculator. Energy consumption calculator. Energy cost calculator. My Electrical Calculator is a free educational and reference Android application developed by Sparkle Solutions. This app contains 45 calculators that can calculate various electrical parameters quickly and easily. It offers automatic calculations and conversions with every unit and value change. The calculated values and results can …Electrical Calculation Tools. Version 5.1.0. View Update. Whether you are designing a new installation, expanding an existing one or doing maintenance, Electrical Calculation Tools is a suite of online tools for a quick Protection device Selection, Selectivity Checking and Cable Calculation. Protections. Electricity cost calculation. The electricity cost per day in dollars is equal to the energy consumption E in kWh per day times the energy cost of 1 kWh in cents/kWh divided by 100 cents per dollar: Cost ($/day) = E(kWh/day) × Cost (cent/kWh) / 100 (cent/$) See also. Energy consumption calculator. How to save electricity. Use this calculator to find the power, voltage, resistance, and current of any electrical circuit. Learn the formulas and examples of Watt's law and Ohm's law, and how to convert between different units of …Learn the Power Formula. We’ve seen the formula for determining the power in an electric circuit: by multiplying the voltage in “volts” by the current in “amps” we arrive at an answer in “watts.” Let’s apply this to a circuit example: How to Use Ohm’s Law to Determine Current. In the above circuit, we know we have a battery voltage of 18 volts and a lamp …Online electrical calculators for calculations of electricity and electronics.The Watt calculator finds the electrical power of a circuit using the given values. Electrical power is given by. P = V ⋅ I P = Electrical power V = Voltage I = Current. Step 2: Click the blue arrow to submit. Choose "Find the Power" from the topic selector and click to see the result in our Physics Calculator! Examples: Find the Power Online Calculators - RapidTables.info. Online Calculators. Access a versatile and convenient online calculator for quick and accurate calculations. Perform a wide range of mathematical tasks with ease using our user-friendly and efficient online calculator tool. The Watt calculator finds the electrical power of a circuit using the given values. Electrical power is given by. P = V ⋅ I P = Electrical power V = Voltage I = Current. Step 2: Click the blue arrow to submit. Choose "Find the Power" from the topic selector and click to see the result in our Physics Calculator! Examples: Find the PowerThe application of this calculator (Figure 1) is for determining power loss across resistive circuit elements in a simple electrical system. This calculator may be useful when calculating total system power loss and when trying to understand voltages and currents at different nodes within a circuit. Figure 1.Voltage drop calculations DC / single phase calculation. The voltage drop V in volts (V) is equal to the wire current I in amps (A) times 2 times one way wire length L in feet (ft) times the wire resistance per 1000 feet R in ohms (Ω/kft) divided by 1000: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. We would like to show you a description here but the site won’t allow us. Using the formula, the electrical load can be calculated as: P = 230 V × 10 A. = 2300 W. Understanding how to calculate electrical load is crucial for anyone working with electrical systems. Armed with this knowledge and this calculator, you can now assess the electrical load of various appliances and circuits with greater accuracy and confidence.This online calculator can help you solve the problems on work done by the current and electric power. It can calculate current, voltage, resistance, work, power and time …Calculate Your Voltage Drop. Determines wire size to meet specific voltage drop limits or calculates voltage drop for a specific conductor run. When sizing conductors, calculations limits wire size to voltage drop and NEC ampacity. Southwire's Voltage Drop Calculator is designed for applications using AWG and KCMIL sizes only.American wire gauge size calculator and chart. Wire gauge calculations Wire diameter calculations. The n gauge wire diameter d n in inches (in) is equal to 0.005in times 92 raised to the power of 36 minus gauge number n, divided by 39:. d n (in) = 0.005 in × 92 (36-n)/39. The n gauge wire diameter d n in millimeters (mm) is equal to 0.127mm times 92 … Energy Use Calculator offers electricity usage calculators for various devices. Allowing you to calculate the electrical cost of your home appliances, and helping you save power consumption costs. To find the energy cost of your appliance, select a device from the list below. LED Light Bulb. CFL Light Bulb. Incandescent Bulb. LCD/LED TV/Display. Oct 21, 2022 · Voltage, Current, Power, Resistance, Circuit analysis, and more. These online calculators are useful for professionals, students, and electrical enthusiasts as well. They can do everything from simple Ohm’s Law calculations to complex formulas for motors and transformers. Whether you need to find electrical parameters, solve network analysis ... Mike Holt worked his way up through the electrical trade from apprentice electrician through electrical contractor, to become one of the most recognized experts in the world as it relates to electrical power installations. He was a Journeyman Electrician, Master Electrician, and Electrical Contractor. In 1974, Mike realized there was a need for quality …Current is the rate of flow of charge, and voltage measures the energy transferred per unit of charge. We can insert these definitions into the equation for power: power = d d = d d ⋅ d d = . Electrical power is the product of voltage times current. in units of watts.online calculator for electronics and electrical calculation need. In this site you can find electronics calculator to use such as Ohm's law calculator that calculate Power (P), …Breaker size calculator is a online calculator tool (electrical calculator) that may be used to determine the proper size of a circuit breaker for a certain electrical circuit. It takes into consideration a wide range of requirements such as voltage, power consumed by appliances/devices connected to the circuit, wire type, and safety regulations.Electrical load calculations come down to a 6 key-step formula to calculate your home’s power load. Lights and outlets: Multiply the square feet of your home’s living area by 3. This calculation determines the wattage needed for light fixtures and receptacle loads. Example 2000 x 3 = 6000 watts. Electricity cost calculation. The electricity cost per day in dollars is equal to the energy consumption E in kWh per day times the energy cost of 1 kWh in cents/kWh divided by 100 cents per dollar: Cost ($/day) = E(kWh/day) × Cost (cent/kWh) / 100 (cent/$) See also. Energy consumption calculator. How to save electricity. Ohm's law calculation formula. The current I in amps (A) is equal to the voltage V in volts (V) divided by the resistance R in ohms (Ω): I =. VR. Example. I =. 20V. 10Ω = 2A. The power P in watts (W) is equal to the voltage V in volts (V) times the current I in amps (A): Desk Calculator 12 Digit Extra Large 4.3-Inch LCD Display, Two Way Power Battery and Solar Calculators Desktop, Big Buttons Easy to Press Used as Office Calculators for Desk. 4.4 out of 5 stars. 2,191. 1K+ bought in past month. $13.99 $ 13. 99. 5% coupon applied at checkout Save 5% with coupon. Voltage = 10 A x 2 Ω. Voltage = 20 V. Example #2 – Let’s find the power consumed by a device supplied with 5 volts and a current of 2 amps. Power = Voltage × Current. Power = 5 V × 2 A. Power = 10 W. Example #3 – Let’s find the resistance of a circuit if it consumes 20 watts of power when supplied with 5 volts. Compare loft insulation and cavity wall insulation with us to get up to four, free no-obligation quotes to compare prices and find the best deal for you. *£390 savings a year figure is for 1940's 3 bed semi-detached home with a ten-year-old gas boiler and a gas price of 3.73p/kWh, when cavity wall insulation and loft insulation are installed. Use this calculator to determine Watts (W), Volts (V), Amps (A), and Ohms (Ω). It's designed for DC power, voltage, current, and resistance calculations. Just input any two values, and the tool will compute the others. Click 'Calculate' to get results. Enter 2 values to get the other values and press the Calculate button: The Blakley calculator helps carry out basic electrical calculations, voltage drop of cables, transformer sizing and Power Factor Correction. About; Industries . Industry Groups; Industry Focus; Resource Hub; Case Studies; Contact; 0333 188 0284 0 items Quote List. X. No products in the listIf you will be using an inverter, complete Section 2. After you have input the losses, select your location in Section 3 and enter the number of solar panels and a solar gain value will be calculated. Section 4 provides a summary of losses and gains and some suggestions. Section 1 - DC Losses due to 12VDC Users.This result is valid for any number of series-connected conductors. Use our Parallel Circuits Calculator to easily calculate the total resistance, current, and voltage in a parallel circuit with multiple resistors. Improve your understanding of electrical circuits and electronics. Homes these days are equipped with many electrical appliances, and we use dozens, if not hundreds, of other devices, making it difficult to predict overall energy usage. The easiest way to estimate energy consumption in kilowatt-hours (kWh) and how much each appliance and device costs on your electric bill is to use the calculator above. Master the fundamentals of electricity with our free online Ohm's Law Calculator. Easily solve for voltage, current, and resistance with just two known values. No more complex formulas, just instant results to help you understand and analyze circuits like a pro!Electrical load calculations come down to a 6 key-step formula to calculate your home’s power load. Lights and outlets: Multiply the square feet of your home’s living area by 3. This calculation determines the wattage needed for light fixtures and receptacle loads. Example 2000 x 3 = 6000 watts.Cost per month = (Power consumed) (Energy price) Cost per month = (0.043) (9) Cost per month =$0.36 per month. It is quite convenient to use the kWh calculator cost for various values of different appliances by the electric cost calculator.Inductive Reactance from Inductance Calculator. Note: Formulas and equations for this calculator is given below (right after calculator). Enter the values of Frequency & Inductance and click on Calculate. Result will display the calculated value of …Electrical Calculators Org. Search for: Hydroelectric Power Calculator – Hydro Power Plant Formula Equation Calculator. Hydroelectric Power Calculator is a useful online calculation tool used to calculate the power generated in kilowatts and megawatts from the known values of density in kg/m 3, ...Dec 22, 2023 · To manually calculate your power consumption, use this formula: Calculate the watts your devices and appliances use per day. Add up the total amount of watts. Convert the watts to kilowatts. There are 1,000 watts in one kilowatt. Estimate the cost by multiplying monthly kilowatts by your electric rate. Power Consumption (Annual) = Power Usage (Watts) x Time (Hours) x 365 (Days) Example: A 1700 Watts Electric kettle runs for 1 hours daily. Calculate the energy consumption in Wh and kWh in one year. Annual power usage in Wh = 1700W x 1 Hours x 365 days= 620500 Wh / year. Annual power usage in kWh = 620500 Wh /1000 = 620.5 kWh / year.Mar 20, 2024 · While Electrical Energy (Wh) is accumulative and represents the quantity, if you will, of electricity that has been consumed, generated, or transferred in general, Electrical Power (W) is instantaneous and represents the rate at which that Energy is being transferred. Read more about this here: The difference between kW and kWh Use our online electrical conversion calculator to easily transition between different units of power, current, frequency, & more. Improve your electrical job …Our collection of electrical calculators is designed to make your calculations a breeze without costing you a dime. Shockingly Simple Online Electrical Calculators. Voltage, …Electrical Calculators Org. Search for: Hydroelectric Power Calculator – Hydro Power Plant Formula Equation Calculator. Hydroelectric Power Calculator is a useful online calculation tool used to calculate the power generated in kilowatts and megawatts from the known values of density in kg/m 3, ...All calculations are performed according to the NFPA-70 (National Electrical Code) - never have to carry your copy again! ... Unlike other electrician calculators, with the Electrician Calculator Pro you just fill out the required spaces with …Wattage in Watts / 1,000 × Hours Used × Electricity Price per kWh = Cost of Electricity. So, for example, if we have a 40 W lightbulb left on for 12 hours a day and electricity costs $.15 per kilowatt-hour, the calculation is: 40 watts / 1,000 × 12 hours × $.15/kWh = $.072. This electricity cost calculator works out how much electricity a ...ah to kwh calculator. Amp hours to Watt Hours. Amps to KVA Calculator. Amps to Kilowatts Calculator. Free online electrical and electronic calculator and electrical conversion calculator. Wattage in Watts / 1,000 × Hours Used × Electricity Price per kWh = Cost of Electricity. So, for example, if we have a 40 W lightbulb left on for 12 hours a day and electricity costs $.15 per kilowatt-hour, the calculation is: 40 watts / 1,000 × 12 hours × $.15/kWh = $.072. This electricity cost calculator works out how much electricity a ... Voltage Drop Calculator. This application, revised to meet 2020 NEC and 2021 CEC, provides voltage drop calculations in accordance with the US National Electrical Code Tables 9 and 8 for AC and DC feeders. Colour coding of maximum allowable ampacity (at different ambient temperatures) in accordance with US and Canadian codes - helps …This tool will help you calculate the load on a circuit to see if it is excessive. You can also calculate the minimum circuit breaker size for the given load. This is very useful when you are in pre-production as you will easily be able to calculate in advance whether or not you will need an external generator, and how many. Calculate.Breaker size calculator is a online calculator tool (electrical calculator) that may be used to determine the proper size of a circuit breaker for a certain electrical circuit. It takes into consideration a wide range of requirements such as voltage, power consumed by appliances/devices connected to the circuit, wire type, and safety regulations.Once you know all these values, the foot-candle calculator will determine how many lumens you need. We use the following equation: \text {lumens} = \text {lux} \cdot \text {area} lumens = lux ⋅ area. You can use illumination units of lux or foot candles. If you want to recalculate between these units, remember that one foot-candle equals 10. ...Find and use various calculators for electrical engineering and electronics, such as resistor color code, ideal diode, instrumentation amplifier, and more. Learn how to calculate resistance, current, voltage, …Compare loft insulation and cavity wall insulation with us to get up to four, free no-obligation quotes to compare prices and find the best deal for you. *£390 savings a year figure is for 1940's 3 bed semi-detached home with a ten-year-old gas boiler and a gas price of 3.73p/kWh, when cavity wall insulation and loft insulation are installed.Electrical Calculators Org. Search for: Hydroelectric Power Calculator – Hydro Power Plant Formula Equation Calculator. Hydroelectric Power Calculator is a useful online calculation tool used to calculate the power generated in kilowatts and megawatts from the known values of density in kg/m 3, ...Our appliance and electronic energy use calculator allows you to estimate your annual energy use and cost to operate specific products. The wattage values provided are samples only; actual wattage of products varies depending on product age and features. Enter a wattage value for your own product for the most accurate estimate. Wattage and ...ah to kwh calculator. Amp hours to Watt Hours. Amps to KVA Calculator. Amps to Kilowatts Calculator. Free online electrical and electronic calculator and electrical conversion calculator.Electrical Calculations is the best app in the electrical sector, it has many calculations that can help you in your work. It can not miss in your smartphone! Wire size, voltage drop, current, voltage, active / apparent / reactive power, power factor, resistance, Maximum wire length, Current carrying capacity of insulated conductors / bare ...Electrical Calculations is the best app in the electrical sector, it has many calculations that can help you in your work. It can not miss in your smartphone! Wire size, voltage drop, current, voltage, active / apparent / reactive power, power factor, resistance, Maximum wire length, Current carrying capacity of insulated conductors / bare ... Unlock the Power of Electrical Calculations with Our Free Online Tools. Welcome to x-calculator.com, where we bring you a toolbox that’s as easy as flipping a switch for your electrical needs! Our collection of electrical calculators is designed to make your calculations a breeze without costing you a dime. Voltage, Current, Resistance ... {{ metatags.description }}To convert amps (electrical current) to watts (electrical power) at a fixed voltage, you can use the equation: watts = amps × volts. Simply multiply your amps figure by the voltage. Example calculations. 15 amps × 120 volts = 1800 watts; 20 amps × 120 volts = 2400 wattsOur appliance and electronic energy use calculator allows you to estimate your annual energy use and cost to operate specific products. The wattage values provided are samples only; actual wattage of products varies depending on product age and features. Enter a wattage value for your own product for the most accurate estimate. Wattage and ...American wire gauge size calculator and chart. Wire gauge calculations Wire diameter calculations. The n gauge wire diameter d n in inches (in) is equal to 0.005in times 92 raised to the power of 36 minus gauge number n, divided by 39:. d n (in) = 0.005 in × 92 (36-n)/39. The n gauge wire diameter d n in millimeters (mm) is equal to 0.127mm times 92 … For three-phase circuits where you know the current, line-to-line RMS voltage, and power factor, the formula to calculate watts is: P (W) = I (A) × V L-L (V) × PF × √3. The power P in watts is equal to the product of the current I in amps, the line-to-line voltage V in volts, the power factor PF, and the square root of 3. The microstrip calculator determines the width and length of a microstrip line for a given characteristic impedance (Zo) and electrical length or vice versa. The substrate parameters (ε r and h) and the frequency of interest are required. Synthesize. Enter values for Zo and Electrical Length to determine the physical width and length of the ...Cost per month = (Power consumed) (Energy price) Cost per month = (0.043) (9) Cost per month =$0.36 per month. It is quite convenient to use the kWh calculator cost for various values of different appliances by the electric cost calculator.My Electrical Calculator is a free educational and reference Android application developed by Sparkle Solutions. This app contains 45 calculators that can calculate various electrical parameters quickly and easily. It offers automatic calculations and conversions with every unit and value change. The calculated values and results can … Unlock the Power of Electrical Calculations with Our Free Online Tools. Welcome to x-calculator.com, where we bring you a toolbox that’s as easy as flipping a switch for your electrical needs! Our collection of electrical calculators is designed to make your calculations a breeze without costing you a dime. Voltage, Current, Resistance ... The Ohm's law calculator is based on the power formula together with the Ohm's Law formula. All you need to do to get the value of power is to type: Voltage … Current is the rate of electric charges moving through a conductor. Electrical power is the product of voltage and current. DC Circuit Power Calculator - Power Electronics Calculators and Tools Breaker sizing calculator parameter: Choose the method: provide load (in kilowatts or watts) and current (in amps) If current selected: rated current of equipment and required safety factor (S.F) to be entered If load selected: For option: For DC, 1∅ AC and 3∅ AC. For DC circuits: voltage (in volts), power (in watts or kilowatts) and safety factor (S.F) (in …How to Calculate Electric Current. In an electrical circuit, current is a measure of the flow of charged particles moving through a conductor. Current is measured in units of amperes (usually referred to as amps).. You can calculate the current flowing through a conductor using Ohm’s Law, which states that the current through a circuit element is directly …Desk Calculator 12 Digit Extra Large 4.3-Inch LCD Display, Two Way Power Battery and Solar Calculators Desktop, Big Buttons Easy to Press Used as Office Calculators for Desk. 4.4 out of 5 stars. 2,191. 1K+ bought in past month. $13.99 $ 13. 99. 5% coupon applied at checkout Save 5% with coupon.See full list on calculator.net
Use this calculator to determine Watts (W), Volts (V), Amps (A), and Ohms (Ω). It's designed for DC power, voltage, current, and resistance calculations. Just input any two values, and the tool will compute the others. Click 'Calculate' to get results. Enter 2 values to get the other values and press the Calculate button:. Mbbank
Voltage = 10 A x 2 Ω. Voltage = 20 V. Example #2 – Let’s find the power consumed by a device supplied with 5 volts and a current of 2 amps. Power = Voltage × Current. Power = 5 V × 2 A. Power = 10 W. Example #3 – Let’s find the resistance of a circuit if it consumes 20 watts of power when supplied with 5 volts. The flow of electric charge Q is referred to as an electric current I. The amount of charge per unit time is the change in electric current. A current flows at a constant value I. during the time t, it transports the charge Q = I × t. For a temporally constant power, the relationship between the charge and current: I = Q / t or Q = I × t.Electrical Formulas helps us to calculate the parameters related to electricals in any electrical components. Solved Examples. Example 1: A wire carrying a current of 4 Amperes is having a resistance of 5 \(\begin{array}{l}\omega\end{array} \). Calculate the potential difference across its ends.Energy Use Calculator provides free energy usage calculators to find the electricity consumption of your devices. We cover most electrical devices and home appliances, our online calculators can be edited to fit any home appliance and accurately calculate power costs. Get Started. Top 5 reasons to use our services:This calculator will help you: 1) Understand various components of your electricity bills. 2) Understand how much you are paying per unit (1 kWh) of electricity bill. 3) Understand how much you spend on various appliances like lights, air conditioner, refrigerator, tube light, computer, set-top box, fan, etc.Use this online tool to easily calculate the electrical parameters based on two known parameters. Supports various units and formulas, including Ohm's law, Joule's law, and Ohm's law wheel.These electrical and electronics engineering calculators are to help electronics/circuit designers to solve complex equations and calculations quickly. LC Tank Circuit …How to Calculate Electric Current. In an electrical circuit, current is a measure of the flow of charged particles moving through a conductor. Current is measured in units of amperes (usually referred to as amps).. You can calculate the current flowing through a conductor using Ohm’s Law, which states that the current through a circuit element is directly …Breaker sizing calculator parameter: Choose the method: provide load (in kilowatts or watts) and current (in amps) If current selected: rated current of equipment and required safety factor (S.F) to be entered If load selected: For option: For DC, 1∅ AC and 3∅ AC. For DC circuits: voltage (in volts), power (in watts or kilowatts) and safety factor (S.F) (in …The flow of electric charge Q is referred to as an electric current I. The amount of charge per unit time is the change in electric current. A current flows at a constant value I. during the time t, it transports the charge Q = I × t. For a temporally constant power, the relationship between the charge and current: I = Q / t or Q = I × t. Online Calculators - RapidTables.info. Online Calculators. Access a versatile and convenient online calculator for quick and accurate calculations. Perform a wide range of mathematical tasks with ease using our user-friendly and efficient online calculator tool. Power Factor PF = 0.65. The formula of Electrical Power is P = I x V x PF. P = 3.5 x 12 x 0.65. = 27.3. Therefore, the electrical power consumed in the circuit is 27.3 Watts. Get instant help with the physics concepts you never seemed to understand with the calculators prevailing on Onlinecalculator.guru.Mike Holt worked his way up through the electrical trade from apprentice electrician through electrical contractor, to become one of the most recognized experts in the world as it relates to electrical power installations. He was a Journeyman Electrician, Master Electrician, and Electrical Contractor. In 1974, Mike realized there was a need for quality … Online electrical design calculators for cables, arc flash, maximum demand, motors, tranformers, generators, etc. .