Power Quality Analysis

Poor power quality results in extra costs due to excessive energy use, unscheduled stops, increased maintenance, and replacement of components that have aged too quickly. End use equipment, such as automation systems or computers, have become more sensitive to disturbances in the power quality that arise both on the supplying power system and within the electrical system. Furthermore, equipment is more interconnected in networks and industrial processes so that the impacts of a problem with any piece of equipment are much more severe.

Most of the industrial problems crop up from electronic equipment that are inadequately maintained. This ends up sending electrical noise into the entire system, resulting in poor power quality.

The Costs of Poor Power Quality due to low power factor can be Significant!

Lost production: Each time production is interrupted, your business loses profit on product that is not manufactured and sold.

Damaged product: Interruptions can damage a partially complete product, causing the material to be re-run or scrapped.

Energy cost: Electric utilities may charge penalties on poor power factor or high peak demands

Power Quality is a concept of powering & grounding electronic equipment in a manner which is suitable to its operation & compatible with premise wiring system & other connected equipment.

The key to conducting a successful power quality analysis is to know where and how to measure and to interpret the results. Here are a few more interesting facts about power quality analysis:

  1. Power quality analysis is beneficial for electric utilities and equipment as it enables continuous monitoring, detects early excursion, analysis of root cause, and timely corrective measures, thus, boosting the reliability of the electrical grid. Power quality is also essential for energy consumers (such as the industrial plants) in order to minimize the power quality issues and averts complete failure of electrical equipment.
  2. Power quality measurement can be carried out by using a number of equipment. However, the most common equipment or tool for observing real-time readings is the power quality analyzers. This is also used to collect data for downloading to the computer for further analysis. While there are many Power Quality Analyzers that are permanently installed in distribution systems but, hand-held power quality analyzers are essential for many tasks including troubleshooting.
  3. Hand-held Power Quality Analyzers are lightweight equipment and can measure a number of parameters. This includes amperage, voltage, dips and swells in voltage value, frequency, harmonic currents, power factor along with the resulting distortion, unbalance in current, power, and voltage, crest factor, and light flicker. With Power Quality Analyzer, it is easy to address a majority of the power quality issues.
  4. A power quality analysis usually begins with a proper planning and by determining the purpose of the analysis. A good one-line diagram of the electrical distribution system of is necessary for power quality analysis.
  5. When observing and analyzing values real-time on a power quality analyzer or whether you are using to analyze downloaded data, it is important to be well aware of the terminologies and understand their characteristics. One must know where to look for when observing and analyzing data.

As the performance of the critical equipment depends on other non-electrical parameters, magnetic field strength & static charges are also measured.


  • Calibrated measurements
  • Minimize unexpected downtime
  • Minimize energy losses
  • Prevent lifetime reduction of electrical equipment
  • Measurements during operation
  • Fast measurements of high speed transients
  • Report including recommendations for corrective measures
  • NTIPL can take care of complete power quality mitigation
  • Power quality analysis can be part of a predictive maintenance program

Advantages of Power Quality Analysis -

  • Reduce the magnitude of frequency of power variations.
  • Add power conditioning to nullify power quality problems.
  • Savings in energy bill due to reduced losses.
  • Improve safety system efficiency & up-time.
  • Reduce equipment downtime & maintenance expense.

Power Analysis Process-

Our Power Analysis process includes variety of analysis, assessment & reporting namely:

  • Walk through assessment
  • Safety assessment
  • Redundancy assessment
  • Threat & risk analysis
  • Monitoring power parameters
  • Harmonics assessment
  • Detail report

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