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Power Quality Analysis

Power Quality (PQ) has turned out to be increasingly vital for commercial and industrial electric power consumers/customers, especially as modern manufacturing & control process bank on computerized test equipments and these are pretty sensitive to power system disturbances and interruptions. Consultants at Supreme Technology & Energy Solutions can offer you solutions to all your power quality issues and get rid of problems that may be present in a typical power system. Furthermore, we give you recommendations to guarantee maximum power quality for facilities under renovation or construction. Power quality concerns can prove a menace as it can affect your bottom line and business productivity. We at Supreme Technology & Energy Solutions with years of solid experience under our belt have the expertise, experience and technology for determining, solving and more often than not, we implement effective preventive actions. Some of our Power Quality Analysis services including computer simulations, site surveys and sensitivity assessments of equipment are indispensible for enhancing performance of power system.

Frequent Power Quality Problems:

With years of solid experience in all types of facilities, we have identified 3 key types of PQ issues that can have real impact on customer operations.

Voltage Sags & Momentary Interruptions: There is increased sensitivity of power electronic equipment. Add to this the possibility of voltage interruptions and voltage sags, the combo of which can result in the most perceivable PQ events. Programmable controllers, office equipments, computers, induction heating furnaces and adjustable-speed drives can be highly sensitive to these types of events. Usually, sags come about when the utility power system has temporary faults and thereby there is a significant fall in the voltage levels. Needless tripping of sensitive industrial loads can lead to some equipment downtime, dent the bottom line and lower productivity and this is precisely the reason why equipment sensitivity to these events is such a crucial factor.

Transients: DC & AC Drives, in addition to other electronic loads could be pretty sensitive to transient voltages. The devices are built with tolerance levels that are more often than not, less than other forms of loads including normal motors. A key concern for transient voltage is the likely utility capacitor switching transients’ magnification on customer power systems at very low-voltage capacitor locations.

Harmonics: DC Drives and adjustable-speed in addition to the switch-mode power supplies can lead to harmonic currents because of their non-linear characteristics. The combination of harmonic currents and system frequency response characteristics can lead to harmonic voltage distortion. Some of the effects of this distortion include capacitor failures, transformer & motor overheating, increased system loss and control malfunction. These issues are further augmented by the employment of capacitor banks that could lead to resonance conditions increasing the harmonic distortion levels. You will find that these banks are generally installed for the purpose of PF correction, besides freeing up the transformer capacity. When we need to carry out studies in facility power system, a number of issues have to be looked into including:

  • Transient analysis
  • Harmonic analysis
  • PF correction
  • Voltage variation analysis
  • Utility capacitor switching activities

Determining & resolving PQ issues

Consultants at Supreme Technology make use of a gamut of tools and techniques to study, find and correct PQ issues. Field measurements & monitoring are important elements in the process of problem solving. We make use of a combo of portable and fixed monitoring instruments to find out and analyze any forms of disturbances on both the side of the meter and utility, in addition to several major process points and several other places. This form of field measurements and monitoring is a cog in the wheel which helps you locate where exactly the occurrence of a problem and find out their potential causes and possible solutions. We also make use of computer, simulations for utility service entrance, power system modeling, major systems, backup systems and key connection points. These simulations could help us perform ‘what if’ analyses to spot out potential problems and power system susceptibility, in addition to the possible solutions. We also carry out a verification of the model against the results that were measured. Our objective is to offer a solution which is cost-efficient, effective without leading any problems for the utility. Furthermore, we look into a number of corrective measures such as providing a number of remedial measures such as offering a gamut of economical options for the purpose of mitigation.

  • Uninterruptible power supplies (UPS)
  • Protectors or Surge arrestors
  • Capacitors
  • Backup generation
  • Harmonic filters
  • Enhanced line insulation
  • SMES - Superconducting Magnetic Energy Storage

If you are interested in knowing more about our Power Quality Analysis process, please call us at 1800 834 991 or filling up the quick enquiry form below should help know all your requirements, so that we can get back to you as soon as we can.

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