Keeping waveforms in check: Page 2 of 2

October 01, 2018 //By John Mitchell
Keeping waveforms in check
Whether a data centre is onshore or offshore, the universal electrical issue that affects them all is harmonics. Associated with alternating current (AC) power lines, harmonics can infiltrate both the voltage and current of electricity. This results in costly and disruptive damage to the electrical distribution systems found in data centres and many other facilities. Let’s delve deeper into the issue.

The answer

While there are a range of options for mitigating harmonics, the right option depends on the data centre in question, the facility’s budget and the loads it supports. CP Automation recently helped one customer that was upgrading the cloud-based servers in a data centre in Middlesex, UK. By assessing the data centre facility and evaluating the current power quality issues, the audit identified any issues that could arise from the upgrade.

After this assessment, it was clear the best option for this facility was an active filter. CP Automation then supplied and installed a Comsys ADF P300 active dynamic filter to alleviate any potential issues associated with harmonics.

Active harmonic filters are the most flexible solution on the market. They monitor the network and inject the necessary amount of compensation current at any given time, which restores current waveform and lowers current consumption. This makes them ideal for installations for applications in which current load changes constantly, as was the case with the data centre in Middlesex. Line harmonics continue to be a costly issue for data centres, but fortunately, IT and facilities managers have access to a wide array of harmonic-mitigation technologies.

 

About the author:

John Mitchell is global business development manager of supply, repair and field service specialist CP Automation - www.cpaltd.net


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