Descriptions:
In industries, the average power factor is measured and recorded both in the power factor panel meter and in the EB incomer meter. Ideally, the average power factor reading in the EB incomer should match with the power factor panel meter. This is the realistic situation.
But if the readings don’t match, we call it a displacement power factor. The main reason for this displacement is the influence of harmonics.
Now let me explain the solution. When the average power factor reading in the EB meter and the power factor panel meter does not match, it means harmonics are influencing the current or voltage. In such cases, we need to analyze the level of harmonics and design a suitable active harmonic filter. This filter ensures harmonics are kept within prescribed limits, eliminating the mismatch between the EB meter and the panel meter.
You may ask, “If both readings are almost close, why should we still consider an active harmonic filter?” Let me give you an example. In one of my client’s factories, the power factor panel meter showed 0.92, while the EB meter showed 0.89. Because of this difference, the customer had to pay a penalty to the electricity board. After inspection, we identified harmonics in the current. We provided them a solution, and now both meters show the same reading, saving them from penalty.
So, it is always important to ensure both the EB meter and the power factor panel meter readings are the same.
For More Details: +919790133998 / 9677256822
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