What Causes Low Power Factor In Electrical System

1 the basic reason behind the low power factor is increased demand of reactive power if at any point in the system there is a balance between reactive power demand and generation then the power factor at that point will be unity.

What causes low power factor in electrical system.

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

The usual reason for the low power factor is because of the inductive load. Basically all those circuit having capacitance and inductance except resonance circuit or tune circuit where. Causes of low power factor the main cause of low power factor is inductive load. The main cause of low p f.

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. In some cases due to improper wiring or electrical accidents a condition known as 3 ϕ power imbalance occurs. 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. Power factor correction as discussed above low power factor is mainly due to lagging currents drawn by inductive loads.

Causes of low power factor. 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. The power factor is therefore lagging.

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.