{"id":1338,"date":"2023-03-20T09:37:26","date_gmt":"2023-03-20T09:37:26","guid":{"rendered":"https:\/\/carelabz.com\/fr\/?p=1338"},"modified":"2025-05-07T06:22:08","modified_gmt":"2025-05-07T06:22:08","slug":"working-principles-for-power-quality-in-switzerland","status":"publish","type":"post","link":"https:\/\/carelabz.com\/ch\/working-principles-for-power-quality-in-switzerland\/","title":{"rendered":"Working Principles for Power Quality in Switzerland"},"content":{"rendered":"\t\t
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The performance and fundamental functioning of equipment connected to a distribution network are directly affected by the quality of the power supply. It is <\/span>anticipated<\/span> that the equipment will function as intended and have a useful life <\/span>roughly equal<\/span> to that of the given service. It is also <\/span>anticipated<\/span> that the network’s stability would be sufficient to prevent problems such as substandard output or missing functionality.<\/span> T<\/span>here<\/span> are several power quality issues that plague the power system. Regardless of their duration, these power quality disruptions may damage equipment. Maintaining power quality is vital for preventing device failure.<\/span> This blog will discuss the research needed to evaluate the quality and reliability of power. <\/span>The following<\/span> is an examination of several methods and strategies for assessing the influence and management of power quality.<\/span> <\/span><\/p>

In contrast to dependability, which is concerned with protracted power outages, the impacts of power quality changes are not <\/span>immediately<\/span> noticeable.<\/span> In other circumstances, however, equipment damage and\/or a delay in the process are the direct results of a power quality interruption. This is especially true about pauses, breaks, and ephemera.<\/span> The impacts of a disturbance in power quality may not always be <\/span>immediately<\/span> apparent<\/span>. Equipment deterioration is one example. Under these circumstances, equipment degradation <\/span>has occurred<\/span> unchecked for decades. In certain circumstances, low power quality will result in <\/span>additional<\/span> losses that are viewed as <\/span>a necessary evil<\/span> and are therefore ignored.<\/span><\/span>\u00a0<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Consequences of Low-grade Electricity:<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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The following are immediate economic repercussions:<\/strong><\/p>

  • Production loss.<\/li>
  • Restarting a procedure incurs additional expenditure.<\/li>
  • Repair and replacement costs for equipment.<\/li>
  • More delays and downtime.<\/li>
  • Worries for the safety and health of people.<\/li>
  • Financial losses brought on the breach of contract.<\/li>
  • Monetary fines as punishment for environmental offences.<\/li>
  • Utility bill increases because of the outage.<\/li><\/ul>

    Among the indirect economic effects are:<\/strong><\/p>

    • The costs experienced by a business because of a revenue or income delay.<\/li>
    • The monetary price of losing market share.<\/li>
    • The price of regaining the brand’s worth.<\/li><\/ul>

      Socioeconomic effects include:<\/strong><\/p>

      • A rise in interior temperature that might harm occupants’ health, safety, or performance.<\/li>
      • A problem or personal harm.<\/li>
      • An electrical hazard might arise if the power quality disruption is not recognized.<\/li><\/ul>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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        Identifying the Sources of Unreliable Electricity: <\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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        Voltage, frequency, and waveform evaluations are utilized to determine the power quality of a power supply system. Nonetheless, a variety of variables influence power quality. In this blog, the following electrical quality issues are discussed:<\/p>

        1. Stable voltage<\/li>
        2. Voltage imbalance<\/li>
        3. Harmonic voltages<\/li>
        4. Unsteady or flashing voltage<\/li>
        5. Disruptions and voltage reductions (also known as voltage sags)<\/li><\/ol>

          Other phenomena, such as swells, transients, <\/span>inter<\/span>–<\/span>harmonics<\/span>, and noise, have received less attention due to their rarity.<\/span><\/span>\u00a0<\/span><\/p>

          1. Stable voltage<\/strong><\/p>

          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).<\/p>

          2. Voltage imbalance<\/strong><\/p>

          Particularly in induction motors and three-phase motors, voltage imbalance is typically linked to extra losses.<\/p>

          • Inverse torque results from this, which damages bearings.<\/li>
          • Reduced current capacity of Installation cables due to more stator and rotor heating.<\/li>
          • Further losses are sustained by the neutral conductor.<\/li>
          • Cables lose more energy than they gain.<\/li><\/ul>

            3. Harmonic voltages<\/strong><\/p>

            Almost all energy users produce harmonic currents, which are then injected into the power system. A harmonic current is an alternating current that has a fundamental frequency greater than or equal to 50 hertz. Non-linear electrical equipment like computers, variable speed drives (VSD), and discharge lamps are the most typical generators of harmonic currents. Harmonic currents have the potential to do serious damage to the installation and the power supply system. Damaged components, installation component damage, component loading, inefficient use of the installation’s current carrying capability, shortened component lifespan, and ineffective operation of protective components are only a few of the repercussions of harmonics.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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            4. Unsteady or flashing voltage <\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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            An envelope modulation of a voltage waveform is flicker. It results in cyclic fluctuations in light intensity in incandescent lighting sources. The health effects of this cyclic variation in light output can range from annoyance and decreased productivity to migraines and, in rare instances, convulsions in certain people.<\/p>

            5. Disruptions and voltage reductions<\/strong><\/p>

            Voltage sags and interruptions often do not cause equipment damage; however, lengthier disruptions commonly cause output loss due to equipment tripping. One overarching finding is that the expense of a protracted interruption does not increase linearly with time but rather increases progressively. According to reports, the following elements have a significant impact on how much a lengthy disruption will cost:<\/p>

            • For instance, it is said that there is little financial difference between a one-second, one-minute, and one-hour delay in the industrial sector.<\/li>
            • The day, hour, and place where it takes place (weekday, weekend, daytime, nighttime)<\/li><\/ul>

              The economic impact of disruptions on all customers is estimated using AEMO’s value of customer reliability (VCR) calculation. While the primary focus of these numbers is on consumers’ willingness to pay to avoid<\/span> disruption, it is <\/span>anticipated<\/span> that this desire to pay is closely correlated with the actual cost. Our calculations suggest that the cost of a one-second interruption is around 20% of the cost of an hour-long outage.<\/span><\/span>\u00a0<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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              How Can Problems with Power Quality Be Reduced?<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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              To find and evaluate power quality problems, CareLabs offers a range of power quality services. Some of them are:<\/strong><\/p>

              • Load Flow Analysis: This research was conducted under operational circumstances. It forecasts system losses, voltage levels, and power flow magnitudes.<\/li>
              • Using computer algorithms, the harmonic analysis identifies and predicts probable harmonic issues. Based on the outcomes, reducing strategies are also recommended.<\/li>
              • Surge and Transient Analysis: This research identifies the causes of transients and surges.<\/li>
              • Analysis of Short-Term Voltage Dips and Swells: This analysis will follow the short-term voltage dips and swells, their magnitude and direction.<\/li>
              • Reactive Power Analysis: This study will establish the preferred reactive power at the distribution and load ends.<\/li>
              • Captive Power Analysis: To fulfill demand while reducing energy surcharges and fuel usage, this research would measure and synchronize captive power.<\/li><\/ul>

                Care<\/span>Lab<\/span>s<\/span> uses <\/span>ETAP (Electrical Transient Analysis Program)<\/span> – Electrical Transient Analysis Program software to <\/span>analyze<\/span> and evaluate power quality. It is the <\/span>appropriate program<\/span> for calculations and simulations of all electrical system components, ensuring the safety of the machinery.<\/span> In all major cities, <\/span>including <\/span>Zurich, Geneva, Basel, and Bern<\/span> we<\/span> conduct power quality assessments.<\/span> Care<\/span>Lab<\/span>s<\/span> is devoted to <\/span>providing<\/span> the highest quality services to improve the performance and quality of your electrical system. Contact us <\/span>immediately<\/span> to book a power quality test or to receive a quote!<\/span><\/span>\u00a0<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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                The performance and fundamental functioning of equipment connected to a distribution network are directly affected by the quality of the power supply. It is anticipated that the equipment will function as intended and have a useful life roughly equal to that of the given service. 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