Comparison Between Leading and Lagging Power Factor in iPFC.
|Basis for Comparison||Leading Power Factor||Lagging Power Factor|
|Basic||The load current leads the supply voltage by certain phase angle.||There is a phase difference between voltage and current where load current lags the supply voltage.|
|Nature of load in electrical circuit||Capacitive||Inductive|
|Correction of low power factor||By the addition of inductive load.||By adding capacitive load.|
|Value||Exists between -1 to 0.||Exists between 0 and 1.|
|Examples of respective loads||Capacitive load:|
Electrical motors, capacitor, radio circuits, etc.
Power generator, inductor, relays, etc.
Article 4.6.2K : What is Leading and Lagging power factor?
Lagging and Leading power factor When the current ‘I’ lags the voltage ‘V’ by an angle ‘θ’ is said to be as ‘Lagging power factor’ When the current ‘I’ leads the voltage ‘V’ by an angle ‘θ’ is said to be as ‘Leading power factor’. The figure which ...
Performance Assessment of Power Factor Capacitors.
Voltage effects: Ideally capacitor voltage rating is to match the supply voltage. If the supply voltage is lower, the reactive kVAr produced will be the ratio V1 2 /V2 2 where V1 is the actual supply voltage, V2 is the rated voltage. On the other ...
Article 2.0.49S: Programming guide of iPFC
Please go through the attachment
How to select Capacitor size in KVAR for Power factor improvement.
Please find the attachment of PF improvement Table. Example: Supplying load of 650Kw at a PF of 0.65. What size of capacitors is required to raise the PF to unity(1)? And how many more KW can connect for the same kVA loading when P.F improved. ...
Causes of low Power Factor.
Following are the causes of low Power factor: 1. Single-phase and three-phase induction Motors. 2. Varying Load in Power System. 3. Industrial heating furnaces. 4. Electrical discharge lamps. 5. Transformers. 6. Harmonic Currents.