The significance of DBL reactive compensation
2019-08-30
(1) Compensation for reactive power can increase the proportional constant of active power in the grid.
(2) Reduce the design capacity of the power supply and power supply equipment and reduce the investment. For example, when the power factor cosΦ=0.8 increases to cosΦ=0.95, the 1Kvar capacitor can save the equipment capacity by 0.52KW; otherwise, the increase of 0.52KW is equivalent to the original equipment. This increases the capacity of the power supply and power supply equipment. Therefore, for new construction and renovation projects, full consideration should be given to reactive power compensation, which can reduce design capacity and thus reduce investment.
(3) Reduce the line loss, from the formula ΔΡ%=(1-cosΦ/cosΦ)×100%, where cosΦ is the compensated power factor, and cosΦ is the power factor before compensation:
CosΦ>cosΦ, so after increasing the power factor, the line loss rate also decreases, reducing the design capacity, reducing the investment, increasing the proportion of active power in the grid, and reducing the line loss directly determine and affect the economic benefits of the power supply enterprise. Therefore, power factor is an important indicator for assessing economic benefits. It is imperative to plan and implement reactive power compensation.
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