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What is the importance of load factor in power system planning?
Wiki User
∙ 11y ago
load factor is the ratio of average load to max demand for a given period.
High load factor means
- less cost per KWH
- more efficient use of power plant
Wiki User
∙ 11y ago
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Does the power factor in three phase system depend on the phase sequence?
No. It depends on the inductive and capacitive reactance of the load.
What is powerfacter?
The ratio of active power (real power) and apparent power is called power factor ( pf ). Power Factor ( pf ) = Active Power / Apparent Power = .................. ( kvar )
Can power factor be more than one?
No. In the simple case of a linear circuit, the power factor is the cosine of an angle, and that can't be more than 1.
What is the greatest factor of 98x to the seventh power?
The greatest factor of a single term is the term itself.
Power factor is not greater than unity?
Yes. Power factor is never greater than one, nor less than negative one. It is the cosine of the phase angle, and is the ratio of true versus apparent power.A negative power factor can occur in the case of a generator.
Why should the power factor of a power system be high?
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What is the use of synchronous machines in power grid system?
To improve the power factor
What significance has a power factor in an unbalanced system?
A three-phase 'unbalanced' system refers to the load, as the supply voltages are unaffected by load. So the phase-angle and, therefore, the power factor of each phase will be different -i.e. there will be three different power factors.
What are the factor that determine the processing power of a computer?
clock system
How do you connect the capacitor bank in electrical system?
improvement of power factor
What are the importance of capacitor?
It depends on the purpose where you are using the Capacitor.If you are using in power systems then it may be used for improvement of Power factor.Which is the important factor in industry.
What are the importance of capacitors?
It depends on the purpose where you are using the Capacitor.If you are using in power systems then it may be used for improvement of Power factor.Which is the important factor in industry.
What is the importance of ripple factor?
Ripple factor ripple factor is very important in deciding the efficiency of the rectifier .ripple factor give the total power converted AC input to the DC output. Ideal ripple factor should be zero and power factor 1. Ripple factor of half wave rectifier 1.21 and full wave rectifier is 0.48.
Why Voltage x Current do not equal rated power?
In an AC system power is equal to Voltage x Current x Power factor. Power factor is not constant and depends on the type of the load. Ideal value of the Power factor is 1, where as practically remains less then 1.
When induction motors is used for power factor correction what is called?
I'm not sure I've ever seen an induction motor used to correct power factor; it is usually the induction motors that are causing the poor power factor. "Power factor correction" is usually accomplished by adding capacitors to the system to counteract the inductance of large motors.
What components define the system's form factor?
The mother board, power supply, and chassis
What is necessity of power factor?
Power factor of a system indicates what portion of the total power(Apparent Power) supplied by a System can be utilized for useful purposes(Real Power) and what portion is necessary for maintainance of the system(Reactive Power) Real Power=Apparent Power X power factor Reactive Power= [Apparent Power2 - Real Power2]1/2 This reactive power is used for maintaining the electric and magnetic fields associated with circuit components. Components like inductors & capacitors dissipate zero power but their is a voltage drop across them, creating a effect as if they are infact dissipating power. This power which is associated with the electric and magnetic fields is the Reactive or Phantom Power. Low Power factor implies less useful power is available and the power stored in the loads, which is returned back to the source, forms a major portion. If the elements of power grid do not get the required Reactive Power from nearby sources, they draw this power from transmission lines and destabilize the system. Electric billing is also based on power factor value. Lower the power factor, lower the bill. So while the supply company gives strict instructions to maintain power factor within certain limits, some consumers intentionally try to manipulate the power factor(by using lot inductive loads) for lower billing. There are provision to detect such practices and heavy penalties are levied on such consumers.
