###### Asked in Electrical Engineering, Electrical Wiring

Electrical Engineering

Electrical Wiring

# What are power factor calculations?

## Answer

###### Wiki User

###### 11/08/2012

As the name implies, these are calculations to determine the power factor of a load, where power factor is the ratio of a load's true power to reactive power.

## Related Questions

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### 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%.
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###### Asked in Home Electricity

### How can the power factor be calculated using a power factor meter?

Your question is unusual.
The point of using a pwer factor meter is to get an actual
indication of the power factor *without* needing to do any other
measurments or do any calculations.
Do a Google search for Power Factor meter and check out the
illustrations/photos you get. You will see that the meters read
directly in power factor, so no calulation is needed.
Rephrase your question and maybe what you actually want to know
will be clearer.
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###### Asked in Home Electricity, Industrial Engineering, Electrical Engineering

### How do you calculate actual power factor?

There are a number of different ways of determining the power
factor of a load, depending on what information you have access to.
For example:
power factor = cosine of phase angle
power factor = true power / apparent power
power factor = resistance / impedance
power factor = votage across resistive component / supply
voltage
etc.
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###### Asked in Electrical Engineering

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###### Asked in Home Electricity, Electrical Engineering

### What are the types of power factor meter?

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1). electrodynamic power factor meter,
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###### Asked in Electronics Engineering, Electrical Engineering

### How do you find power input with given power factor and power output?

Output Power divided by Power Factor.

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###### Asked in Electrical Engineering

### What are the advantages and disadvantages of unity power factor?

There is no disadvantage of unity power factor, because at unity
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the the load, and at lagging power factor some power is lost in the
load's magneticfield.
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###### Asked in Electrical Engineering

### What mean power factor 0.26 lead?

When looking at power factor, it is the ratio of watts (true
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person with a low power factor like .26 will have a higher
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###### Asked in Electrical Engineering

### What are the advntage of the leading power factor?

there are no adwantage of leading power factor . always our aim
is to get unity power factor , as at unity power factor reactive
losses are zero.Yes if there are lagging loads then then we have to
supply lagging var locally to make the power factor UPF.
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###### Asked in Electrical Engineering

### Why is power factor important and why would you want to improve it?

Effective Power = Volts x Amps x Power Factor
Power Factor ranges from 0 to 1. At a Power Factor of 1 the load
is pure resistive and the current and voltage are exactly in phase.
As the voltage and current get out of phase the Power Factor
decreases and you reduce the power. Therefore, a Power Factor of 1
is most efficient.
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###### Asked in Electrical Engineering

### When will i use 0.82 power factor?

There is no significance to a power factor of 0.82.

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###### Asked in Electrical Engineering

### What is the power factor of a circuit?

power factor means kw/kva

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### Why you use low power factor wattmeter on primary and unity power factor on secondary side of transformer?

There is no such thing as a 'low power-factor' wattmeter. A
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###### Asked in Microsoft Excel

### In performing calculations using excel are processed first?

Calculations inside brackets are done first. The "power of" or
exponentiation calculations are done before any others, then
multiplications and divisions, then additions and subtractions.
...

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###### Asked in Home Electricity, Electrical Engineering

### How do you calculate the real power taken by a three phase load?

For a three phase real power calculations we are using the
formula:
P=Sqrt3*V*I*PF
PF:Power Factor =1 if the load is pure resistance like the
light
V: Voltage
I: Current
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###### Asked in Central Powers, Electrical Engineering, Research Papers

### Papers on automatic power factor controller?

automatic power factor controller

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### Advantages of low power factor correction?

advantages of low power factor

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### What number is used as a factor in a power?

A base number is used as a factor in a power.

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Power Factor Improvement Panel. It controls power factor

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###### Asked in Electrical Engineering

### What is power factor in electricity?

Definitions of Power Factor in electricity can be given in
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1) Power Factor is the Cosine of the angle between the voltage
vector and the current vector.
2) Power Factor is the ratio of the resistance to the impedance
of the circuit.
3) Power Factor is also defined as the ratio of true power to
apparent power.
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###### Asked in Electrical Engineering

### Can we improve generator power factor for increasing active power?

The 0.8 Power Factor provided by generator manufacturers is not
the load power factor, but it is the nominal power factor used to
calculate the kW output of an engine to supply the power for a
particular alternator kVA output. Alternators are therefore
designed to supply their rated kVA at 0.8 lagging power factor.
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###### Asked in Electronics Engineering, Electrical Engineering

### What will be the power factor of the circuit if total resistance is made zero?

ratio between true power and apparent power is called the power
factor for a circuit
Power factor =true power/apparent power
also we conclude PF=power dissipated / actual power in pure
resistive circuit
if total resistance is made zero power factor will be zero
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###### Asked in Electrical Engineering, Central Powers

### What is the relationship betweenth the power factor and the load?

If the load is resistive-inductive, then it will have a lagging
power factor; if it is resistive-capacitive, then it will have a
leading power factor. Power factor is defined as the angle by which
the load current lags or leads the supply voltage.
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###### Asked in Home Electricity, Electrical Engineering

### How synchronous motor can improve power factor of certain load connected to power system?

Large electricity users like factories have to watch the power
factor of the load they place on the supply. For most pieces of
equipment the power factor is a lagging one and the problem
therefore is to improve the power factor of the whole factory by
placing a load on the supply with a leading power factor.
A synchronous motor operates at a power factor determined by the
excitation current. With a low excitation the motor operates at a
lagging power factor,...

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###### Asked in Electrical Engineering

### Power factor of dc ballast is 0.8. what will be the power factor same ballast in AC?

Power factor is an AC only term, and has no meaning for DC.

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