Active power consumption = (the reading on the meter this month minus the reading from last month) multiplied by the multiplier; this value represents the electricity consumption of the factory for that month. Reactive power...
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This post was last edited by ds66616 on 2019-1-6 at 20:25. The active power consumption is calculated by taking the reading on the meter this month and subtracting the reading from last month, then multiplying the result by a certain factor; this gives the amount of electricity used by the factory during that month. The reading from the reactive power meter is not taken into account in the calculation of total electricity consumption; it is used only as a value for calculating the power factor. (However, **the power grid has regulations regarding the maximum allowable amount of reactive power consumption – it’s necessary to check the specific rules with the local power grid**.) I would like to ask how to understand this sentence. Why isn’t the meter reading the amount of electricity used, just like in household electricity usage?
Home three-phase or single-phase meters do not measure reactive power; they only calculate active power. For enterprises operating under such conditions, where there is a high level of reactive power, if no measurement is carried out and no evaluation criteria are established, then no compensation will be provided by any of the units involved. This leads to high demands for reactive power in the public power grid, increased line losses, and insufficient supply voltage. Therefore, the specified value for low-voltage grids is generally 0.90, and power supply authorities impose penalties in such cases.