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Electrical power is the lifeblood of the data center . A stable source of clean power must be present for any data center to operate . But the very equipment that runs in the data center is often the cause of power quality problems experienced throughout that data center . Fans , power supplies , rectifiers , transformers , pumps and lighting ballasts can distort the available power waveform .

The resulting sags , transients , and harmonics may make the infrastructure unreliable and inefficient .

As a specialist and innovator in the data center power business , Legrand has taken a giant leap forward in the functionality of our power distribution units by integrating new continuous power quality monitoring capabilities . This paper explains why measuring total harmonic distortion ( THD ) is essential to modern data centers and how having circuit breaker trip forensics available at the rack PDU makes sense to address several data center power pain points .

Introduction

The hardware technology employed in modern data centers is typically faster and more power dense than prior generations of infrastructure .

CPUs now have tens to hundreds of cores in a single chip , and GPUs are likely to have thousands of cores . Sophisticated software is available to make use of all these cores in parallel , reducing the overall time to

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