Recording the power factor (cosφ) in non-residential electrical supplies is essential because due to inductive loads (air conditioning units, lighting, etc.), the lower it is from unity, the more reactive power returns to the network and the larger the currents that burden the conductors of our electrical installation.
For example, if we have a load with a power factor cosφ of 0.6 and a power of 20KW, the DEH will charge us for 20000*(0.8/0.6)=26KW.
By connecting the appropriate capacitors in parallel to our supply in a triangle configuration, which have a capacitive behavior, if the new power factor is formed at 0.8, DEH will charge us for 20KW while the current will be reduced to 36A, resulting in smaller cable cross-sections, a more economical installation and less thermal stress on cables.
