Both Active (kWh) and Reactive (kVArh) energies are consumed simultaneously. Reactive Energy (kVArh) occupies the capacity of electricity network and reduces the useful capacity of system for generation and distribution & hence its consumption also needs to be billed. kWh based billing is associated with PF incentive /penalty mechanism. Considering that the kVAh based billing has an inbuilt incentive /penalty mechanism and separate mechanism for the same is no more required; instead of billing two energies separately, billing of kVAh energy is preferred as a commercial inducement.
Because of kVAh billing system, Real and Reactive energies need not be charged separately.
Power Factor also described as -
- Power factor is the degree at which the power delivered to the given load matches resistive load under same conditions.
- It is cosine of angle between Real Power and Apparent Power.
kVAh billing System:-
In kVAh based billing system, the fixed charges or demand charges are levied on apparent power (kVA) and energy charges are levied on apparent energy (kVAh).Because of kVAh billing system, Real and Reactive energies need not be charged separately.
Advantages to utility:-
- Good system stability, improved power quality, improved voltage profile and reduced capital expenditure.
- Complete recovery of cost of active and reactive powers.
- Zero/ minimal drawl of reactive power by consumers.
- Reduction in power purchase cost
No comments:
Post a Comment