Three Phase Heater Power Calculation
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.
Three phase heater power calculation. The power p in kilowatts kw is equal to 3 times the power factor pf times the phase current i in amps a times the line to neutral rms voltage v l n in volts v divided by 1000. The total kw of the heater is 15 kw. My calculation for amps in each leg is 15kw 1000 208v 1 73 41 7 amps. The three phase power calculator calculates the active and reactive power current from the following parameters.
The line to neutral phase voltage v ln 400 3 230 v three phase power is 36 kw single phase power 36 3 12 kw now simply follow the above single phase method. Do not use typical power factor values for accurate calculations. To calculate kva you need to enter the known values of voltage and the current into the respective fields. Ohm s law calculator 3 phase delta wye calculator.
We engineer thermal solutions for the world s toughest industrial heating applications. I am programming an app for ordering 3 phase heaters and i have an argument to resolve with a coworker. I a 1000 p kw 3 pf v l n v typical power factor values. Chromalox is a thermal technology company.
Lv and mv cables up to 33 kv with current capacity in accordance with bs 7671 era 69 30 and iec 60502. Cable sizing software select size and manage your power cables using mycableengineering. As an example consider a balanced three phase load consuming 36 kw at a power factor of 0 86 and line to line voltage of 400 v v ll. Enter the power factor of the load.
The phase current i in amps a is equal to 1000 times the power p in kilowatts kw divided by 3 times the power factor pf times the line to neutral rms voltage v l n in volts v. All your cables for all your projects. Calculation with line to neutral voltage. Enter the the current in amperes a.
Leverage watlow s growing toolkit of calculators equations reference data and more to help design your thermal system. Enter the phase to phase v ll voltage for a 3 phase ac supply in volts. Do not use typical power factor values for. The most important three phase power equations relate power p in watts to current i in amps and depend on the voltage v there is also a power factor pf in the equation that takes account for the difference between the real power which performs useful work and the apparent power which is supplied to the circuit most types of three phase power calculations are performed.
P kw 3 pf i a v l n v 1000.