How to Conduct Power Quality Analysis in Greece?

The ability of equipment to use the energy supplied to it is referred to as power quality. High energy consumption and bills, high maintenance costs, direct economic impacts, loss of production, unrecoverable downtime and resources, equipment instability and failure are all consequences of power quality issues. Any business must consider energy management, and power quality must be assessed as part of any energy management program. Care Labs provides a variety of services that address all energy-related issues. We offer power quality study and analysis services based on our domain expertise.

Problems with Power Quality:

Power supply quality is a more complex and subtle parameter than reliability. It is not about supply availability, but rather about the suitability and compatibility of the electricity supply for use.

Variations in power quality can be divided into two categories:

Disturbances:

Disturbances occur when there is an abnormality in the voltage or current. Transient voltages may be detected when the peak magnitude exceeds a certain threshold. When the RMS variation exceeds a specified limit, RMS voltage variations such as sags, swell, and interruptions can be detected.

Variations in the steady-state:

RMS voltage variations and harmonic wave distortion are examples of steady-state variations. These variations must be sampled over time by measuring the voltage and current. This sampled data is best presented as a quantity of voltage distortion over time and then analyzed using methods such as average distortion level, which is 95% likely not to be exceeded, and so on.

Factors influencing supply quality include: 

  • Voltage stability
  • Frequency of supply
  • Voltage drops
  • Voltage surges
  • Transient voltages
  • Harmonic aberrations
  • Radiofrequency estimation

The majority of these elements are difficult to identify and observe. Their measurement usually necessitates the use of specialized testing equipment, and the evaluation must be performed by qualified technicians or engineers.

Voltage Constant:

The electrical system’s steady-state voltage levels are constantly changing in response to load and other system events. In general, as load increases, voltage levels tend to fall. Similarly, when a load is removed, voltage levels rise. 

Unbalanced Voltage:

It is a difference in the three-phase supply value or phase angle displacement. Unbalanced circuit impedances and unbalanced loads can both cause it. It causes heating effects, equipment malfunction, and loss of efficiency.

Variations in Voltage:

Voltage sags are brief dips in the RMS supply voltage lasting 0.5 cycles to on minute. Voltage swells are brief increases in RMS supply voltage above a threshold limit of 0.5 cycles to one minute.

Frequency of supply:

The rate at which the supply voltage wave alternates is referred to as the supply frequency. NEMMCO – National Electricity Market Management Company – is in charge of setting frequency standards in the National Electricity Market. Outside of the National Electricity Market, frequency standards are set by the local generating authority. 

Distortion of Harmonics:

It is a recurring, regular distortion of the supply voltage or current waveform pattern. Excess harmonics can result in additional losses, light flickering, malfunctioning, radio interference, motor vibration, and poor performance of sensitive equipment.

Power Quality Analysis Process at Care Labs: 

  • The purpose of the power quality survey is noted, as is the onsite assessment.
  • Continue your research by drawing a one-line diagram of the entire electrical system.
  • A power analyzer is connected at various points in the distribution end to collect data from each distinct system.
  • Carrying on with the distribution system as shown in the one-line diagram.
  • Examining and analysing the collected data, as well as conducting additional analysis
  • Report submission and solution recommendation

Our team of highly qualified professionals can help you find solutions to your power quality issues. A thorough system study and analysis ensure that your power quality is at its peak. Please contact us for more information on our power quality analysis service!

    Share Post

    Related Posts