Using the Electrical Calculator Application
The Electrical Calculator application is designed to simplify the process of calculating electrical parameters for both single-phase and three-phase systems. This guide will walk you through how to use the application and explain the relevant formulas for each type of calculation.
Getting Started
- Select the Calculation Type:
The first step is to choose the type of calculation you need. You can select between:
- Single Phase
- Three Phase Star
- Three Phase Delta
Single Phase Calculation
Input Parameters:
- Voltage (V): Enter the voltage value. You can select the unit from Volts (V), Kilovolts (kV), or Megavolts (MV).
- Current (I): Enter the current value in Amperes (A).
- Power Factor (PF): Enter the power factor, a value between 0 and 1.
Formulas Used:
- Apparent Power (S):
S = V × I - Active Power (P):
P = S × PF - Reactive Power (Q):
Q = √(S2 - P2) - Power Factor Angle (θ):
θ = cos-1(PF)
Three Phase Star Calculation
Input Parameters:
- Voltage (V): Enter the voltage value. You can select between Line Voltage and Phase Voltage. Choose the unit from Volts (V), Kilovolts (kV), or Megavolts (MV).
- Current (I): Enter the current value in Amperes (A).
- Power Factor (PF): Enter the power factor, a value between 0 and 1.
Formulas Used:
- Line Voltage (VL) and Phase Voltage (VPh):
VL = √3 × VPh - Apparent Power (S):
S = √3 × VL × I - Active Power (P):
P = S × PF - Reactive Power (Q):
Q = √(S2 - P2) - Power Factor Angle (θ):
θ = cos-1(PF)
Three Phase Delta Calculation
Input Parameters:
- Voltage (V): Enter the voltage value. Choose the unit from Volts (V), Kilovolts (kV), or Megavolts (MV).
- Current (I): Enter the current value in Amperes (A). You can select between Line Current and Phase Current.
- Power Factor (PF): Enter the power factor, a value between 0 and 1.
Formulas Used:
- Line Current (IL) and Phase Current (IPh):
IL = √3 × IPh - Apparent Power (S):
S = √3 × V × IL - Active Power (P):
P = S × PF - Reactive Power (Q):
Q = √(S2 - P2) - Power Factor Angle (θ):
θ = cos-1(PF)
Viewing Results
After entering the required inputs, the application will automatically calculate and display the following results:
- Apparent Power (S): Displayed in VA, kVA, MVA, or GVA depending on the magnitude.
- Active Power (P): Displayed in W, kW, MW, or GW depending on the magnitude.
- Reactive Power (Q): Displayed in VAR, kVAR, MVAR, or GVAR depending on the magnitude.
- Power Factor Angle (θ): Displayed in degrees (°).
Conclusion
The Electrical Power Calculator accurately calculates electrical parameters for both single-phase and three-phase systems. By following the steps outlined above, users can quickly obtain the necessary values for their electrical calculations, making the process efficient and straightforward.