Three Phase Heater Power Calculation

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.

Three phase heater power calculation. Ohm s law calculator 3 phase delta wye calculator. Leverage watlow s growing toolkit of calculators equations reference data and more to help design your thermal system. Calculation with line to neutral voltage. 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.

My calculation for amps in each leg is 15kw 1000 208v 1 73 41 7 amps. Do not use typical power factor values for. 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.

I am programming an app for ordering 3 phase heaters and i have an argument to resolve with a coworker. 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. All your cables for all your projects. 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.

P kw 3 pf i a v l n v 1000. Cable sizing software select size and manage your power cables using mycableengineering. We engineer thermal solutions for the world s toughest industrial heating applications. 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.

Lets say i have a 208v 3 phase heater delta connection with a heating element on each leg l1 l2 l3. The three phase power calculator calculates the active and reactive power current from the following parameters. The total kw of the heater is 15 kw. I a 1000 p kw 3 pf v l n v typical power factor values.

Enter the phase to phase v ll voltage for a 3 phase ac supply in volts. Enter the the current in amperes a. To calculate kva you need to enter the known values of voltage and the current into the respective fields. Typical power factor values.

Do not use typical power factor values for accurate calculations.