Power Quality Working Principles in Thailand - Carelabs Thailand

The functionality of equipment connected to the distribution network is directly affected by the quality of the power supply. It is believed that the equipment will operate as intended and have a useful life similar to the stated value. Likewise, it is considered that the network’s reliability is sufficient to prevent problems such as poor output or functionality loss.

In actuality, the electricity grid is beset by several issues. Regardless of how long these power quality issues persist, they may cause equipment damage. To prevent equipment failure, it is necessary to maintain a high degree of power quality. This blog will discuss the research required to evaluate the quality and reliability of electricity. After this, a variety of power quality monitoring and control systems and techniques are studied.

In contrast to the effects of dependability, which involve lengthy power outages, the effects of power quality disruptions take time to manifest. Nevertheless, in certain instances, the effects of a power quality interruption are immediately obvious due to malfunctioning equipment or a delay in processing. This is particularly true with pauses and other fleeting noises.

In other instances, the effects of a change in power quality may not be readily apparent. One example is when equipment fails. In this instance, equipment degrades without anyone noticing. In other instances, power quality issues result in additional losses that are accounted for as part of the costs of conducting business and are not observed.

Immediate economic effects consist of the following:

Voltage, frequency, and waveform of a power supply system indicate if it meets power quality standards. Yet, the quality of power is affected by a number of things. This blog addresses the following concerns with electricity quality:

Some fewer common phenomena, such as swells, transients, inter-harmonics, and noise, have been studied less.

Consistent voltage magnitudes over a long period of time (minutes or hours) are equivalent to steady-state voltage magnitudes. Equipment failure, increased equipment energy consumption, and possible system failure are the major effects of sustained high voltage levels (overvoltage) or low voltage levels (under voltage).

Particularly in induction motors and three-phase motors, voltage imbalance is typically linked to extra losses.

Almost all energy consumers generate and inject harmonic currents into the power system. Alternating currents with fundamental frequencies that are multiples of 50 hertz are harmonic currents. Harmonic currents are frequently produced by non-linear electronic equipment like computers, variable speed drives (VSD), and discharge lights. Both the installation and the electrical grid may suffer significant damage as a result of harmonic currents. Harmonic may cause, among other things, damage to components, installation parts, component loading, inefficient use of the installation’s present carrying capacity, shorter component life spans, and ineffective action from protective components.

The voltage waveform envelope is changed such that it flickers. Consistently controls the light intensity of incandescent lighting. This frequent change in the amount of light emitted can cause headaches in certain people, decrease their productivity, and in rare cases cause seizures.

Voltage dips and interruptions seldom cause equipment damage, but longer interruptions commonly result in equipment tripping and losing output.

It is possible to generalize that the cost of a protracted interruption is not proportionate to its length. Instead, it follows a logarithmic curve. Many assert that the following variables have a substantial influence on the cost of a protracted interruption:

The value of customer dependability (VCR) is utilized by AEMO to determine how much disruptions cost all customers. Even though the majority of these statistics suggest the amount of money consumers are prepared to pay to prevent an interruption, this willingness to pay is likely to be significantly correlated with the actual cost. According to their figures, a one-second outage costs around 20 percent less than an hour-long one.

Carelabs offers a number of services to discover and evaluate power quality concerns. They comprise:

Carelabs use ETAP (Electrical Transient Analysis Program) software for power quality research and analysis. It is the best software for calculating and modelling all the components of an electrical system in order to guarantee the safety of the equipment.

We provide power quality analysis services in all major cities, such as Bangkok, Chiang Mai, Samut Prakan, Udon Thani, and Nonthaburi . Carelabs is committed to providing you with the highest quality service, hence enhancing the quality and durability of your electrical system. Call us immediately to schedule a power quality analysis or to obtain a quote.

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