Many of the mysteries of equipment failure, downtime, software, and data corruption are the result of a problematic power supply. Compounding the problem is that there is no standardized way to describe power problems. Learn more about common power disturbances, what can cause them, and how to safeguard your critical equipment—all described in Institute of Electrical and Electronics Engineers (IEEE) standard terms.
additional shielding for the data devices and/or their cabling to reduce, or nullify, the effects of the EMI/RFI. 6. Voltage Fluctuations Since voltage fluctuations are fundamentally different from the rest of the waveform anomalies, they are placed in there own category. A Voltage fluctuation (Figure 17) is a systematic variation of the voltage waveform or a series of random voltage changes, of small dimensions, namely 95 to 105% of nominal at a low frequency, generally below 25 Hz. Any load exhibiting s