How to Conduct a Power Quality Analysis in Hong Kong?
The phrase “power quality” refers to the efficiency with which a piece of equipment utilizes the given energy. Power quality issues result in excessive energy consumption, expensive energy bills, high maintenance costs, rapid economic repercussions, lost productivity, downtime, irreplaceable resources, and unstable or damaged equipment. Any organization should consider energy management, and any energy management program should consider power quality. CareLabs provides a variety of services that address several energy-related issues. We provide services for studying and analysing power quality based on our industry knowledge.
Concerns Regarding the Quality of the Power:
Power supply quality is a more sophisticated and delicate metric than dependability. It is irrelevant if there is sufficient supply. Rather, the question is whether the supply can be utilized.
Changes in power quality may be categorized into two categories:
Revolutions:
If the voltage or current are off, a disruption may occur. When the peak value of a transient voltage exceeds a certain threshold, it is possible to compute it. Voltage fluctuations such as dips, swells, and interruptions can be observed when the RMS variation surpasses a specific threshold.
Variations from the steady state:
Fluctuations in the RMS voltage and the distortion of harmonic waves are two instances of steady-state variations. Voltage and current must be monitored to monitor these changes over time. These statistics give the most precise illustration of voltage distortion throughout time. Other approaches, such as the average distortion level, which has a 95% chance of not being surpassed, may then be used to analyze it.
Table of Contents
Several variables impact supplier quality, including:
- Constant voltage
- How often it is made accessible
- The voltage lowers
- Spikes in voltage
- Changes in voltage
- Cohesive changes
- Estimation of radio frequency
Most of these items are difficult to locate and see. Typically, specialized testing equipment is required, thus only skilled technicians or engineers should measure them.
Constant Voltage:
As a result of load and other system events, the steady-state voltage levels of an electrical system are constantly fluctuating. Voltage levels often decrease as the load increases. Like this, when a load is removed, the voltage level rises.
Unbalanced Voltage:
Either the phase angle or the three-phase supply value is different. It can also be caused by unbalanced loads and impedances in the circuit. It increases heat, damages machinery, and decreases output.
Voltage Changes:
Rapid drops in the RMS supply voltage known as “voltage sags” last anywhere from 0.5 to 1 minute. Voltage swells are abrupt rises in RMS supply voltage that last for 0.5–1 cycles.
The Sales Frequency:
The rate at which the waves of supply voltage fluctuate is referred to as the supply frequency. NEMMCO oversees the National Electricity Market (National Electricity Market Management Company). Outside of the National Electricity Market, the frequency standards are established by the local production authority.
Harmonic Adjustments:
It is a shift in the pattern of the provided voltage or current that occurs repeatedly. Additional harmonics may result in an increase in losses, malfunctions, flickering lights, radio interference, motor vibrations, and inefficient operation of sensitive equipment.
The Procedure for Analysing Power Quality at CareLabs Is as Follows:
- Both the objective of the power quality survey and the outcomes of the on-site evaluation are presented.
- After completing your assessment, produce a summary of the whole electrical system.
- A power analyzer is connected to the distribution end at several places to collect data from each individual system.
- Maintenance of the distribution network depicted in the line diagram.
- Evaluating and analysing the gathered data, as well as doing extra analysis,
- Presented report with proposed alterations
Our highly educated personnel can assist you in determining how to resolve power quality issues. If you examine and assess your system thoroughly, you may obtain the maximum power quality. If you have any queries about our power quality analysis service, please contact us.
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