Electric Formulas and info

Watts to btu’s = watts x 3.413

Btu’s to watts = btu’s / 3.413

Three phase resistive watts  = (Amps1 x Volts1) + (A2 x V2) + (A3 x V3) / 1.732 (which is the square root of 3)

Single phase resistive watts = volts x amps

Three phase inductive watts (motors) = (Amps1 x Volts1) + (A2 x V2) + (A3 x V3) / 1.732 x power factor

Single phase inductive watts (motors) = volts x amps x power factor

Ohms Law: E/IR: Ohms = volts / amps (R=E/I), amps = volts / ohms (I=E/R), volts = amps x ohms (E=IR)

How to convert kilowatts to amps

DC kilowatts to amps calculation formula

The current I in amps is equal to 1000 times the power P in kilowatts, divided by the voltage V in volts:
I(A) = 1000 × P(kW) / V(V)

So amps are equal to 1000 times kilowatts divided by volts
amps = 1000 × kilowatts / volts

AC single phase kilowatts to amps calculation formula

The current I in amps is equal to 1000 times the real power P in kilowatts, divided by the power factor PF times the voltage V in volts:
I = 1000 × P / (PF × V )

So amps are equal to 1000 times kilowatts divided by power factor times volts.
amps = 1000 × kilowatts / (PF × volts)

AC three phase kilowatts to amps calculation formula

The current I in amps is equal to 1000 times the real power P in kilowatts, divided by square root of 3 times the power factor PF times the line to line RMS voltage VL-L in volts:
I = 1000 × P / (√3 × PF × VL-L )

So amps are equal to 1000 times kilowatts divided by square root of 3 times power factor times volts.
amps = 1000 × kilowatts / (√3 × PF × volts)

 

The Calculating tool uses both quantitative data and qualitative information covering HVAC design, installation and operation to benchmark energy efficient performance and identify potential areas for improvement.

AC cooling load

Calculator

AC Heating Load

Calculator

HVAC Efficenet

Conversion Tool

User warning: all this results are based on quick estimate calculation. Exact heat /cool load can be determined with a full heat and cool load analysis

So, whether you need a small split system, large chiller & cooling tower or boiler plant, AIR TRACK INC
can provide you with a customized solution. Give us a call – (905) 330 4056.

2014 Air Track INC. © All Rights Reserved.