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Firstly all voltages and currents should be in RMS values. (divide peak values by root 2).
Apparent Power
|S| = VI = (P2+Q2)0.5
Complex Power
S = P + jQ
P = |S|cos(theta)
Q = |S|sin(theta)
theta = phase angle between voltage & current (can be calculated by finding total impedence of the circuit)
Power Factor = cos(theta)
What else can I help you with?
What is the formula to calculate ac current in single phase 240volts?
The formula is: current (in amps) = power (in watts) , divided by (240 times the power factor). The power factor is 1 for incandescent light or heaters, otherwise it can be assumed to be 0.75 for other loads.
How to calculate a true power?
True power, measured in watts (W), can be calculated using the formula: ( P = VI \cos(\phi) ), where ( P ) is the true power, ( V ) is the voltage in volts, ( I ) is the current in amperes, and ( \phi ) is the phase angle between the voltage and current waveforms. This formula accounts for the power factor (cosine of the phase angle), which indicates the efficiency of power usage in an AC circuit. To find true power, you need to know the voltage, current, and phase angle or the power factor.
Do televisions use single-phase or 3-phase power?
Answer 1: TV's use single-phase power. Answer 2: TV's use single phase power of 220 or 110 volts ac power depending on what part of the world you live in.
Can you tap off a 3 phase 277volt ac light fixture to power a single phase 120 volt ac recptacle?
NO! The voltages available in the 3-phase system are 480 (if you wire phase to phase) and 277 (if you wire phase to neutral) Don't try it!
What is single phase ac generator?
It's an electrical generator converting mechanical power into electrical power. The electrical power comes out in the form of single-phase alternating current.
What is the formula for phase angle?
Phase angle is defined as the angle by which the load current leads or lags the supply voltage in an AC circuit. There are numerous ways to calculate a circuit's phase angle, so there is no 'formula' as such. For example, if you know a load's resistance and impedance, or its true power and apparent power, then you can use basic trigonometry to calculate the phase angle, and so on.
Is Europe ac power single phase?
In Europe they have both single phase and three phase.
What is the formula to calculate ac current in single phase 240volts?
The formula is: current (in amps) = power (in watts) , divided by (240 times the power factor). The power factor is 1 for incandescent light or heaters, otherwise it can be assumed to be 0.75 for other loads.
How to calculate a true power?
True power, measured in watts (W), can be calculated using the formula: ( P = VI \cos(\phi) ), where ( P ) is the true power, ( V ) is the voltage in volts, ( I ) is the current in amperes, and ( \phi ) is the phase angle between the voltage and current waveforms. This formula accounts for the power factor (cosine of the phase angle), which indicates the efficiency of power usage in an AC circuit. To find true power, you need to know the voltage, current, and phase angle or the power factor.
What is ac power and ac voltage?
AC power is electricially, a value that is expressed in watts and voltage is the electromotive force that combined with amps, makes up the formula to find watts. Watts is the product of Amps x Volts. W = amps x volts.
Why 3 phase ac systems is preferred to 4 phase?
3 phase system has more power than a single phase system
Do televisions use single-phase or 3-phase power?
Answer 1: TV's use single-phase power. Answer 2: TV's use single phase power of 220 or 110 volts ac power depending on what part of the world you live in.
Can you tap off a 3 phase 277volt ac light fixture to power a single phase 120 volt ac recptacle?
NO! The voltages available in the 3-phase system are 480 (if you wire phase to phase) and 277 (if you wire phase to neutral) Don't try it!
What is single phase ac generator?
It's an electrical generator converting mechanical power into electrical power. The electrical power comes out in the form of single-phase alternating current.
What kind of electricity do dams create?
hydroelectric power They produce what is called 3-phase AC power.
What determines power?
Power = Current * Voltage * Power FactorAbove expression can further be explore as :1. For DC CircuitsPower = Current * Voltage2. For Single Phase AC CircuitPower = Current * Voltage * Power Factor3. For Three Phase AC CircuitPower = Line Current * Line Voltage * Power Factor
How do you calculate ac power from dc power data?
While you can't exactly compare the two, the equivalent voltages, currents and powers can worked using the idea of RMS (which is the equivalent value in AC); this is the value which is given for just about everything you plug in: microwaves, toasters, shavers... Just calculate "DC x square root of half = equivalent value of AC". The opposite is "AC x square root of two = DC". For example, 240 Volts (normal home voltage) AC x sqrt 2 = about 340 Volts DC or 6mA DC (the amount needed to stop a human heart) x sqrt 0.5 = 4.2 mA AC.
