How Passive Harmonic Filter mitigates Electronics Failure
2 min readJun 26, 2021
Techniques in Preventing Electronic Failures
- It alters the dynamics of the harmonic flow by creating a Short-Circuit path for the flow of harmonic frequencies like 250hz for 5th harmonic etc.
- 2. The load harmonics now, instead of getting absorbed in the downstream loads, are diverted as soon as it’s produced through this short-circuit path into the filter, thus solving equipment failures, tripping, and malfunctions. It allows only a small harmonics within a limit over to the grid, meeting the IEEE 519 harmonic standard, for both voltage and current harmonics.
- 3. Besides, it’s a stored energy LC power bank which will oppose any momentary change in voltage fluctuation, either sag or swell and power surge which may originate either within the plant or outside in the grid. A passive harmonic filter is an indispensable tool in eliminating nuisance tripping of critical plant equipment — process drives, control system, computers, server to name a few.
- 4. By relieving the downstream equipment from the burden of harmonic absorption, it eliminates that need for costly de-rating saving CAPEX and equipment footprint cost.
- 5. It saves OPEX cost in the manifold. Firstly, it eliminates harmonics naturally and allows full load plant operation sustainably. Secondly, it troubleshoots failures and thirdly it enhances energy efficiency.
- 6. The harmonious operation with the optimum power quality results in lesser end-product quality rejections which we have tracked up to 50% savings on Six-Sigma Scale.