Power factor is defined as the ratio of real power over total power. Total power is the vector sum of real and reactive power.
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.
power , P=1.732*V*I*power factor so, the formula for calculate the load current for a 3 phase motor is,I=P/(1.732*V*power factor)
{| |- | capacitance of the capacitor is mentioned in KVAR. Formula : KVAR = KW*tan@ FOR tan@, First note the power factor & KW without connecting capacitor. The noted power factor is in cos@.Convert the cos@ value in tan@. for ex. If power factor is 0.6, KW = 200 cos@ = 0.6 cos-1 (0.6) = 53.1 tan (53.1) = 1.333 200*1.333 = 266.6 KVAR if you use 266 KVAR capacitor, Then the power factor improves to unity (1.000). |}
Yes, sort of. At least for DC, that's correct, since P = I x V (power = current x voltage). In the case of AC, the correct formula is: P = I x V x (power factor) In many practical situations, the power factor is close to 1, and can therefore be ignored.
The power factor (cosine of phase angle) of pure inductor is zero because the phase angle between current and voltage is 90 degrees .If the value is substituted in the formula It will be zero.
The power of an electrical device can be calculated using the formula ( P = V \times I ), where ( P ) is the power in watts, ( V ) is the voltage in volts, and ( I ) is the current in amperes. For alternating current (AC) circuits, the formula can also include the power factor: ( P = V \times I \times \text{PF} ), where PF is the power factor. In cases of resistive loads, this simplifies to the same formula, as the power factor is 1.
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.
For a single-phase system, active (or 'true') power is the product of the supply voltage, the load current, and the power factor of the load.
To measure power, you need the Voltage, and Current. In the case of AC you need the number of phases, and the power factor. Once you have these, you can find the proper formula.
power , P=1.732*V*I*power factor so, the formula for calculate the load current for a 3 phase motor is,I=P/(1.732*V*power factor)
The power factor (PF) is calculated using the formula: ( PF = \frac{P}{S} ), where ( P ) is the real power measured in watts (W), and ( S ) is the apparent power measured in volt-amperes (VA). It can also be expressed as ( PF = \cos(\phi) ), where ( \phi ) is the phase angle between the current and voltage waveforms. A power factor of 1 indicates all the power is being effectively converted into work, while lower values indicate inefficiency.
The kW rating of a transformer can be calculated by multiplying the kVA rating by the power factor. For example, if the power factor is 0.8, then the kW rating of a 100 kVA transformer would be 80 kW. You can also use the formula: kW = kVA x power factor.
{| |- | capacitance of the capacitor is mentioned in KVAR. Formula : KVAR = KW*tan@ FOR tan@, First note the power factor & KW without connecting capacitor. The noted power factor is in cos@.Convert the cos@ value in tan@. for ex. If power factor is 0.6, KW = 200 cos@ = 0.6 cos-1 (0.6) = 53.1 tan (53.1) = 1.333 200*1.333 = 266.6 KVAR if you use 266 KVAR capacitor, Then the power factor improves to unity (1.000). |}
First, you can take out the common factor "x".For what remains (the factor other than "x"), you can use the formula for the difference of two cubes.
To calculate three-phase power with a power factor, you would use the formula: P = √3 x V x I x PF, where P is power in watts, V is voltage, I is current, and PF is the power factor. Multiply √3 (1.732) by the voltage, current, and power factor to determine the power in watts.
Yes, sort of. At least for DC, that's correct, since P = I x V (power = current x voltage). In the case of AC, the correct formula is: P = I x V x (power factor) In many practical situations, the power factor is close to 1, and can therefore be ignored.
The power factor (cosine of phase angle) of pure inductor is zero because the phase angle between current and voltage is 90 degrees .If the value is substituted in the formula It will be zero.