Power Factor Correction: Difference between revisions
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== [[Reactive energy and power factor|Reactive energy and power factor]] == | === [[Reactive energy and power factor|Reactive energy and power factor]] === | ||
The nature of reactive energy | |||
Equipment and appliances requiring reactive energy | |||
The power factor | |||
Practical values of power factor | |||
== [[Why to improve the power factor?|Why to improve the power factor?]] == | === [[Why to improve the power factor?|Why to improve the power factor?]] === | ||
Reduction in the cost of electricity | |||
Technical/economic optimization | |||
== [[How to improve the power factor?|How to improve the power factor?]] == | === [[How to improve the power factor?|How to improve the power factor?]] === | ||
Theoretical principles | |||
By using what equipment? | |||
The choice between a fixed or automatically-regulated bank of capacitors | |||
== [[Where to install power factor correction capacitors?|Where to install power factor correction capacitors?]] == | === [[Where to install power factor correction capacitors?|Where to install power factor correction capacitors?]] === | ||
Global compensation | |||
Compensation by sector | |||
Individual compensation | |||
== [[How to decide the optimum level of compensation?|How to decide the optimum level of compensation?]] == | === [[How to decide the optimum level of compensation?|How to decide the optimum level of compensation?]] === | ||
General method | |||
Simplified method | |||
Method based on the avoidance of tariff penalties | |||
Method based on reduction of declared maximum apparent power (kVA) | |||
== [[Compensation at the terminals of a transformer|Compensation at the terminals of a transformer]] == | === [[Compensation at the terminals of a transformer|Compensation at the terminals of a transformer]] === | ||
Compensation to increase the available active power output | |||
Compensation of reactive energy absorbed by the transformer | |||
== [[Power factor correction of induction motors|Power factor correction of induction motors]] == | === [[Power factor correction of induction motors|Power factor correction of induction motors]] === | ||
Connection of a capacitor bank and protection settings | |||
How self-excitation of an induction motor can be avoided | |||
== [[Example of an installation before and after power-factor correction|Example of an installation before and after power-factor correction]] == | === [[Example of an installation before and after power-factor correction|Example of an installation before and after power-factor correction]] === | ||
== [[The effects of harmonics|The effects of harmonics]] == | === [[The effects of harmonics|The effects of harmonics]] === | ||
Problems arising from power-system harmonics | |||
Possible solutions | |||
Choosing the optimum solution | |||
== [[Implementation of capacitor banks|Implementation of capacitor banks]] == | === [[Implementation of capacitor banks|Implementation of capacitor banks]] === | ||
Capacitor elements | |||
Choice of protection, control devices and connecting cables | |||
Revision as of 17:30, 8 March 2010
Reactive energy and power factor
The nature of reactive energy
Equipment and appliances requiring reactive energy
The power factor
Practical values of power factor
Why to improve the power factor?
Reduction in the cost of electricity
Technical/economic optimization
How to improve the power factor?
Theoretical principles
By using what equipment?
The choice between a fixed or automatically-regulated bank of capacitors
Where to install power factor correction capacitors?
Global compensation
Compensation by sector
Individual compensation
How to decide the optimum level of compensation?
General method
Simplified method
Method based on the avoidance of tariff penalties
Method based on reduction of declared maximum apparent power (kVA)
Compensation at the terminals of a transformer
Compensation to increase the available active power output
Compensation of reactive energy absorbed by the transformer
Power factor correction of induction motors
Connection of a capacitor bank and protection settings
How self-excitation of an induction motor can be avoided
Example of an installation before and after power-factor correction
The effects of harmonics
Problems arising from power-system harmonics
Possible solutions
Choosing the optimum solution
Implementation of capacitor banks
Capacitor elements
Choice of protection, control devices and connecting cables
