What Causes Low Power Factor In Electrical System

Basically all those circuit having capacitance and inductance except resonance circuit or tune circuit where.

What causes low power factor in electrical system.

The main cause of low p f. In some cases due to improper wiring or electrical accidents a condition known as 3 ϕ power imbalance occurs. The usual reason for the low power factor is because of the inductive load. 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. The current in the inductive load lag behind the voltage. Causes of low power factor the main cause of low power factor is inductive load. The power factor is therefore lagging.

Basically all those circuit having capacitance a. Following are the main causes of low power factor. Power factor correction as discussed above low power factor is mainly due to lagging currents drawn by inductive loads. 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.

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. As in pure inductive circuit current lags 90 from voltage this large difference of phase angle between current and voltage causes zero power factor. This results in low power factor too. A low power factor is a common occurrence in industrial complexes.

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 presence of harmonic currents in the system also reduces the power factor.