What is reactive power compensation "power adjustment fee"?

Most of the enterprise's electricity bill has the column of "adjust electricity bill", but how many people don't know what it means! Confused as electricity consumption, wasted money! As everyone knows, this is about reactive power compensation, power factor assessment index, is completely avoidable! Helpless, people's neglect, contempt, contributed to the waste, low power quality!

Power dispatching tariff refers to the relevant tariff charged by the power supply company according to the average power factor calculated by the active and reactive power used by the customer in a period of time (such as one month or year). That is to say, for a period of time, the reactive power compensation of electricity customers is large and the power factor is low, which does not meet the national power factor assessment standards for users, so the extra costs generated will be added to the electricity bill. Based on the current domestic power quality and power consumption environment, more than 85% of the enterprises have their own problems, which lead to "power adjustment"!

There are many reasons for the "power tariff adjustment", which can be roughly divided into the following categories:

① Reactive power compensation device: reactive power compensation (capacitor cabinet) in power consumption system leads to low power factor, resulting in "power regulation fee".

② Over compensation of reactive power compensation device: some enterprises have reactive power compensation device, and there are fines from time to time. At the beginning of the design of the distribution system, the actual production situation was not considered, the capacity of the matching reactive power compensation device was too large, and the accuracy of the compensation controller was low, resulting in the phenomenon of over compensation of reactive power.

③ Reactive power compensation technology fault: the vast majority of enterprises appear in the "power adjustment fees" are from here! The main reasons are as follows: improper switching mode selection, too rough capacitance grading coefficient, voltage and current harmonics, compensation sensitivity, etc., which will lead to the lack of reactive power compensation and low power factor, resulting in fines.