What Causes Low Power Factor In Electrical System
In some cases due to improper wiring or electrical accidents a condition known as 3 ϕ power imbalance occurs.
What causes low power factor in electrical system. The power factor is therefore lagging. Power factor correction as discussed above low power factor is mainly due to lagging currents drawn by inductive loads. Basically all those circuit having capacitance a. The current in the inductive load lag behind the voltage.
As in pure inductive circuit current lags 90 from voltage this large difference of phase angle between current and voltage causes zero power factor. In electrical engineering the power factor of an ac electrical power system is defined as the ratio of the real power absorbed by the load to the apparent power flowing in the circuit and is a dimensionless number in the closed interval of 1 to 1. The main cause of low p f. Causes of low power factor.
Basically all those circuit having capacitance and inductance except resonance circuit or tune circuit where. This results in low power factor too. The important inductive loads responsible for the low power factor are the three phase induction motors which operate at a 0 8 lagging power. The usual reason for the low power factor is because of the inductive load.
A low power factor is a common occurrence in industrial complexes. The presence of harmonic currents in the system also reduces the power factor. Causes of low power factor. This refers to an inefficiency in the power system which causes some of the electricity that s provided by the electric company to be wasted.
Following are the main causes of low power factor. A power factor of less than one indicates the voltage and current are not in phase reducing the average product of the two.