November 29, 2016
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Cancellation of triplen harmonics to smooth critical processes in a stock exchange

One of the largest stock exchanges in the world comprises of several single-phase non-linear loads. The presence of such loads in the electrical system generated high harmonic current distortions. Total distortion would be as high as 30 %, well above the limits defined by the local regulatory body. To prevent any interruptions of critical business processes and the loss of data, the customer’s technical consultant and the building management company suggested harmonic mitigation as an imperative first step. On account of major technical limitations and slow response, old technologies were not considered by the consultant.

The Merus A-series active harmonic filters were selected to clear the electrical network from harmonic distortions. The respond time of less than 1 millisecond and harmonic mitigation up to the 50th order ensure higher availability and reliability of the overall electrical system. The facility is now protected against nuisance tripping and the loss of important data.

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