Active power, also known as real power, is the portion of electrical power that performs useful work in a circuit—such as producing heat, light, or mechanical motion. Measured in watts (W) or kilowatts (kW), it represents the actual energy consumed by a load and is the basis for electricity billing.
This tool calculates active power based on voltage, current, power factor, apparent power, reactive power, resistance, or impedance. It supports both single-phase and three-phase systems, making it ideal for motors, lighting, transformers, and industrial equipment.
| Parameter | Description |
|---|---|
| Current Type | Select circuit type: • Direct Current (DC): Constant flow from positive to negative pole • Single-phase AC: One live conductor (phase) + neutral • Two-phase AC: Two phase conductors, optionally with neutral • Three-phase AC: Three phase conductors; four-wire system includes neutral |
| Voltage | Electric potential difference between two points. • Single-phase: Enter **Phase-Neutral voltage** • Two-phase / Three-phase: Enter **Phase-Phase voltage** |
| Current | Flow of electric charge through a material, unit: Amperes (A) |
| Power Factor | Ratio of active power to apparent power, indicating efficiency. Value between 0 and 1. Ideal value: 1.0 |
| Apparent Power | Product of RMS voltage and current, representing total power supplied. Unit: Volt-Ampere (VA) |
| Reactive Power | Energy alternately flowing in inductive/capacitive components without conversion to other forms. Unit: VAR (Volt-Ampere Reactive) |
| Resistance | Opposition to DC current flow, unit: Ohm (Ω) |
| Impedance | Total opposition to AC current, including resistance, inductance, and capacitance. Unit: Ohm (Ω) |
The general formula for active power is:
P = V × I × cosφ
Where:
- P: Active power (W)
- V: Voltage (V)
- I: Current (A)
- cosφ: Power factor
Other common formulas:
P = S × cosφ
P = Q / tanφ
P = I² × R
P = V² / R
Example:
If voltage is 230V, current is 10A, and power factor is 0.8, then active power is:
P = 230 × 10 × 0.8 = 1840 W
Monitor active power regularly to assess equipment efficiency
Use data from energy meters to analyze consumption patterns and optimize usage
Consider harmonic distortion when dealing with nonlinear loads (e.g., VFDs, LED drivers)
Active power is the basis for electricity billing, especially under time-of-use pricing schemes
Combine with power factor correction to improve overall energy efficiency
| Parameter | Description |
|---|---|
| Masana Karkara | Za su iya zaɓi masana karkara: • Karkara Mai Tsari (DC): Tsarin da ya ci gaba da kullum min tsumma zuwa min haske • Karkara Mai Kyau Da Karkara Mai Uku: Karkara mai kyau (kyau) + karkara mai haske • Karkara Mai Biyu Da Karkara Mai Uku: Karkara mai biyu, kadan da karkara mai haske • Karkara Mai Uku Da Karkara Mai Uku: Karkara mai uku; karkara mai uku da karkara mai haske |
| Fassara | Farkon fassara daga birnin biyu. • Karkara Mai Kyau: Zaka iya faɗa **Fassara Kyau-Haska** • Karkara Mai Biyu / Karkara Mai Uku: Zaka iya faɗa **Fassara Kyau-Kyau** |
| Karkara | Tsunan karkara har da kaya, unit: Amper (A) |
| Kashi | Abubuwan karkara da karkara mai amfani, wanda ya nuna darasi. Daina karkara bayan 0 da 1. Daban-daban da ya danganta: 1.0 |
| Kwakwa da karkara mai amfani | Dabbobi da fassara da karkara, wanda ya nuna jumla na karkara da aka bayyana. Unit: Volt-Ampere (VA) |
| Kwakwa da karkara mai amfani | Nafin karkara da ya ci gaba a cikin kompain da karkara mai amfani ba ta haɗa da dukamtar abubuwan da duka. Unit: VAR (Volt-Ampere Reactive) |
| Karamin karkara | Babban tsaron da karkara mai tsari, unit: Ohm (Ω) |
| Karamin karkara | Jumla na babban tsaron da karkara mai uku, sama da karamin karkara, karamin karkara, da karamin karkara. Unit: Ohm (Ω) |
Kula da take daidaito da kwakwa da karkara shine:
P = V × I × cosφ
Me:
- P: Kwakwa da karkara (W)
- V: Fassara (V)
- I: Karkara (A)
- cosφ: Kashi
Wasu kula da ake amfani da su:
P = S × cosφ
P = Q / tanφ
P = I² × R
P = V² / R
Misali:
Idan fassara ce 230V, karkara ce 10A, da kashi ce 0.8, maka kwakwa da karkara ce:
P = 230 × 10 × 0.8 = 1840 W
Tambaya kwakwa da karkara daidai don tuntuɓi darasiyan kayan aiki
Amfani da bayanan karatuwar karkara don tuntubi masu amfani da karkara da kuma zama daidai
Yana da ma'ana a kan karkara mai amfani ba da karkara mai amfani (misali, VFDs, LED drivers)
Kwakwa da karkara shine muhimmin tushen fitaccen adadin karkara, musamman idan ana samun adadin karkara a lokacin daɗi
Haɗa da kashi da karkara don zama daidai wa karkara da karkara