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The power factor measures the phase difference between a current and a voltage waveform. Power factor ranges from zero to one. A power factor of 1 is for a pure resistive load. Power factor decreases for loads like motors with high inductance. Power factor comes into play when determining the watts used by a device. Watts = Volts x Amps x PF. So ideally for efficiencies sake, you want to keep the PF as close to one as possible.
Wiki User
∙ 13y ago
Wiki User
∙ 6y agopower factor should be close to 1. Say 0.98
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Why you take 0.95 as standard power factor?
When you need to calculate the estimated load or load current during initial design phase or so, you need to assume a value for power factor which is realistic. 0.95 is a realistic value.
How the capacitor valve calculate for a for a load?
I assume that you are asking how to calculate the 'value' of a capacitor? Well, it depends what it is used for. If, for example, it is used to improve the power factor of a load, then it is first necessary to determine what the load's existing reactive power is; then, you need to know what reactive power is necessary with the power factor at its desired value; finally you need to difference between the actual and the desired values of reactive power -and this will be the necessary value for the capacitor. Power factor correction capacitors are rated in reactive volt amperes, not farads.
How you improve power factor in synchronous motor?
Power Factor measures the difference in phase between the current and voltage. When they are in phase the Power Factor is defined as 1. When out of phase the value is less than 1. If they are 180 degrees out of phase the Power Factor will be zero.
What should be the minimum recommended value of power factor of a substation?
A substation is not a load but is a place where switching and voltage-level changing takes place. Accordingly, you cannot apply a 'power factor' to a substation.
What method improve power factor?
The most common method of improving the power factor of a load is to connected a capacitor or capacitor bank, of appropriate reactive power (expressed in reactive volt amperes), in parallel with the load.
Why you take 0.95 as standard power factor?
When you need to calculate the estimated load or load current during initial design phase or so, you need to assume a value for power factor which is realistic. 0.95 is a realistic value.
How do you calculate power factor kvr?
Power Factor = KVA/KW. This has no unit. Its value is always 1 or less.
What is the value of 10 to the -5 power in standard notation?
15
What is the value of 2 to the 5th power in standard form?
25 = 32 in standard form.
Of what value is the power factor?
Power factor value varies from zero to one depending upon the angle between vectorial value of voltage & current and equals to cos fi ( where fi is the angle between i & v)
What is value of power factor?
Power factor value varies from zero to one depending upon the angle between vectorial value of voltage & current and equals to cos fi ( where fi is the angle between i & v)
What is the value of 8y0 on zero as a factor?
If that's y to the zero power, the value is 8.
Minimum acceptable value of power factor FOR LIGHTING and MOTOR CIRCUITS?
Usually for a power factor lower that 90% a service charge will be added to the monthly electrical bill. On power factor correction calculations try to get the power factor up to 95%.
What is the value of power factor for a pure capacitor?
0. Power factor has to do with the amount of real power. if you have a purely capacitive load, there is no real power flow, thus pf = 0. For purely resistive load, power factor will be 1.0.
When a number is written as the product of a factor and a power of tenit is written in?
Scientific or standard notation.
What does a negative value for a reactive power means?
Meaning it's a capacitive load. Leading power factor
What is the same factor as 3 to the sixth power and What is its value?
3^6 = 729
