AC real power calculator
Online calculator for formulas used in electronic circuit design and electrical engineering.Basic electric calculations:
Ohm's Law,
Ohm's Law with power,
DC power,
AC real power,
LC resonant frequency,
Capacitor charging/discharging,
Capacitive reactance,
Capacitive current + reactive power,
Capacitor energy,
Capacitor Δ energy,
RC discharging,
Inductor square pulse,
Inductive reactance,
Inductive current + reactive power,
Inductor energy,
2 parallel resistors,
3 parallel resistors,
System bandwidth,
Bandwidth ↔ rise time
Wire and winding calculations:
Calculate AC real power: 12.47kV, 4A, 0.5PF, W
Using this calculation, you can calculate the real (active) power of an AC load knowing the voltage, current and power factor (cos phi). You can also calculate the current knowing the power, voltage and power factor, calculate the voltage knowing the power, current and power factor, or calculate the power factor knowing the power, current and voltage. P=V.I.cosφ I=P/(V.cosφ) V=P/(I.cosφ) cosφ=P/(V.I)
Enter 3 values, the empty 4th one will be calculated:
Some common AC voltages:
| Low AC voltage |
Mains voltage |
High voltage transmission lines |
||||
|---|---|---|---|---|---|---|
|
1V 1.2V 1.5V 3V 3.15V 3.5V 4V 4.7V 6V 6.3V |
7.5V 9V 12V 12.6V 15V 18V 24V 36V 48V 60V |
100V 110V 115V 117V 120V 125V 127V 190V 200V 208V |
220V 230V 240V 277V 380V 400V 415V 440V 480V 600V |
1kV 3kV 3.3kV 4.16kV 6kV 6.6kV 7.2kV 10kV 12.47kV 13.2kV |
14.4kV 22kV 23.9kV 35kV 44kV 69kV 110kV 115kV 138kV 161kV |
169kV 220kV 230kV 345kV 400kV 500kV 750kV 765kV 1000kV 1150kV |
AC real power formula says:
• When an AC load draws 4A (four amps) current at 12.47kV (twelve point four seven kilovolts) voltage, with a 0.5 (zero point five) power factor, it's real (active) power input is 24.94kW (twenty-four point nine four kilowatts).• If a 12.47kV (twelve point four seven kilovolts) load draws 24.94kW (twenty-four point nine four kilowatts) power and its power factor cos φ is 0.5 (zero point five), its current consumption is 4A (four amps).
• When a load runs at 4A (four amps) current at 24.94kW (twenty-four point nine four kilowatts) power input and has 0.5 (zero point five) power factor, its working voltage is 12.47kV (twelve point four seven kilovolts).
• When a 24.94kW (twenty-four point nine four kilowatts) AC load draws 4A (four amps) current at 12.47kV (twelve point four seven kilovolts), its power factor is 0.5 (zero point five).
This is a simple online calculator for formulas used in electronic engineering and design.
This online calculator is for reference only. I do not guarantee it to work correctly. You use this at your own risk only.