Power quality is the ability of equipment to use the energy that is supplied to it. Power quality issues cause excessive energy consumption and bills, high maintenance costs, direct economic repercussions, output loss, unrecoverable downtime and resources, and equipment instability and failure. Any organization must review energy management, and any energy management program must analyze power quality. CareLabs provides a number of services that address various energy-related issues. Based on our expertise in this industry, we provide power quality research and analysis services.
Power supply quality is a more comprehensive and subtle indicator than reliability. It is not a problem of supply availability, but of the electrical supply’s suitability and compatibility.
There are two types of power quality variations:
Interruptions:
Disturbances occur when there is an abnormality in the voltage or current. Transient voltages can be identified when the peak magnitude exceeds a specified threshold. When the RMS variation surpasses a certain threshold, RMS voltage variations such as sags, surges, and interruptions can be identified.
Changes in steady-state conditions:
Fluctuations in RMS voltage and harmonic wave distortion are examples of steady-state fluctuations. To sample these variations, voltage and current must be observed throughout time. This sampled data is best presented as an amount of voltage distortion over time and then analyzed using approaches such as the average distortion level, which is 95% unlikely to be exceeded, and so on.
Among the elements influencing supply quality are:
The majority of these elements are difficult to identify and see. Its evaluation often necessitates the use of specialized testing equipment and must be carried out by trained specialists or engineers.
The electrical system’s steady-state voltage levels change on a regular basis in reaction to load and other system events. Voltage levels often fall as the load rises. Similarly, when a load is removed, voltage levels climb.
It refers to a change in the three-phase supply value or displacement of the phase angle. Unbalanced circuit impedances and unbalanced loads can also cause it. It causes heat effects, device failure, and loss of efficiency.
Voltage sags are brief drops in RMS supply voltage that last between 0.5 and one minute. Voltage swells are transitory increases in RMS supply voltage that last between 0.5 and one minute.
The supply frequency is the pace at which the supply voltage wave alternates. The National Electricity Market Management Company, NEMMCO (National Electricity Market Management Company), sets the frequency requirements for the National Electricity Market. Outside of the National Electricity Market, frequency norms are set by the local generating authority.
It is a regular, periodic distortion of the source voltage or current waveform. Extra losses, flickering lights, malfunctions, radio interference, motor vibrations, and deficient performance of sensitive equipment can all result from excessive harmonics.
Power Quality Analysis Procedure at CareLabs:
Our highly trained specialists can aid you in fixing power quality issues. A thorough system study and analysis ensures that your power quality is at its peak. Please contact us for more information about our power quality analysis service!
