Many of the mysteries of equipment failure, downtime, software and data corruption, are the result of a problematic supply of power.
There is also a common problem with describing power problems in a standard way. This white paper will describe the most common types of power disturbances, what can cause them, what they can do to your critical equipment, and how to safeguard your equipment, using the IEEE standards for describing power quality problems.
Our technological world has become deeply dependent upon the continuous availability of electrical power. In most countries, commercial power is made available via nationwide grids, interconnecting numerous generating stations to the loads. The grid must supply basic national needs of residential, lighting, heating, refrigeration, air conditioning, and transportation as well as critical supply to governmental, industrial, financial, commercial, medical and communications communities. Commercial power literally enables today’s modern world to function at its busy pace. Sophisticated technology has reached deeply into our homes and careers, and with the advent of e-commerce is continually changing the way we interact with the rest of the world.
Many power problems originate in the commercial power grid, which, with its thousands of miles of transmission lines, is subject to weather conditions such as hurricanes, lightning storms, snow, ice, and flooding along with equipment failure, traffic accidents and major switching operations. Also, power problems affecting today’s technological equipment are often generated locally within a facility from any number of situations, such as local construction, heavy startup loads, faulty distribution components, and even typical background electrical noise.
This report looks at the largest potential power threats for your organization:
- Sag / Undervoltage
- Swell / Overvoltage
- Waveform Distortion
- Voltage Fluctuations
- Frequency Variations
Economical solutions are available to limit, or eliminate, the affects of power quality disturbances. However, in order for the industry to communicate and understand power disturbances and how to prevent them, common terms and
definitions are needed to describe the different phenomena. This paper has attempted to define and illustrate power quality disturbances as outlined in IEEE Standard 1159-1995, IEEE Recommended Practice for Monitoring Electrical Power Quality.
Reducing equipment downtime and production expense, therefore increasing profit, is the goal of any size business. Communicating by understanding the electrical environment, and equipment’s susceptibility to power quality disturbances, will help in the discovery of better methods to achieve business goals and dreams.