{"id":2631,"date":"2025-05-22T17:09:51","date_gmt":"2025-05-22T15:09:51","guid":{"rendered":"https:\/\/pqs.com.pa\/?p=2631"},"modified":"2025-05-22T17:18:46","modified_gmt":"2025-05-22T15:18:46","slug":"ieee-519-2022","status":"publish","type":"post","link":"https:\/\/pqs.com.pa\/en\/ieee-519-2022\/","title":{"rendered":"Are you compliant with the IEEE-519 2022 Edition?"},"content":{"rendered":"
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The\u00a0IEEE 519 standard<\/a>\u00a0defines the voltage and current harmonics distortion criteria for electrical systems design. The IEEE-519 2022 edition replaces the 2014 edition from December 2022.
The IEEE 519 2022 edition includes two important changes:<\/p>

\u2022 Installations with mixed loads and Inverter Based Resources\/Distributed Energy Resources
\u2022 Even current harmonics limits<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\r\n\t\t\tResources\/Distributed Energy<\/span>

New guidelines for installations with mixed loads and Inverter Based <\/h4>\t\t<\/div>\r\n\r\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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The 2022 edition instructs you whether to follow the IEEE-519 compliance criteria or different standards, as follows:<\/p>

  1. IEEE-519 current limits at the point of common coupling (PCC) should be applied if the installation has an Inverted Based Resources (IBRs) or Distributed Energy Resources (DERs), in addition to the loads, and the combined site rated generation is lower than 10% of the annual average load demand.<\/li>
  2. IEEE 1547 or IEEE 2800 (if applicable) should be applied at the point of common coupling (PCC) should be applied if the installation has an IBRs or DERs, in addition to the loads, and the combined site rated generation is higher than 10% of the annual average load demand.<\/li>
  3. If the installation does not have an IBR or DER, IEEE-519 current limits should be applied at the PCC.<\/li><\/ol>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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    \r\n\t\t\tIEEE-519 2022 \u2013<\/span>

    Even current harmonics limits\n<\/h4>\t\t<\/div>\r\n\r\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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    The IEEE-519 defines the\u00a0limits of current distortion<\/a>\u00a0per harmonic (in percentages of maximum demand load current) and TDD. The harmonics are divided to 5 groups (3rd \u2013 10th, 11th \u2013 16th, 17th \u2013 22nd, 23rd \u2013 34th and 35th \u2013 50th), with different limits to each group of harmonics per rated voltage and ISc\/IL ratio.<\/p>

    In the 2014 edition, all the even current harmonics were limited to 25% of their odd counterparts in their respective harmonic group. The 2022 edition is significantly different since only the even harmonics equal or below the 6th harmonic are limited, and these harmonics are limited only to 50% of their odd counterparts in the same harmonic group. The meaning is that all the even harmonics above the 6th harmonics\u2019 values are allowed to be 4 times higher compared to the 2014 edition. i.e., the even harmonics values above the 6th harmonic can be the same as their odd counterparts in their harmonics group.
    This might have a huge impact if you exceed the 2014 standard limits, as you may comply to the 2022 edition, avoiding penalties you might suffer from at the 2014 edition period.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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    \r\n\t\t\tAn example:<\/span>

    Current distortion limits for systems rated 120 V \u2013 69 kV<\/h4>\t\t<\/div>\r\n\r\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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    c\/IL<\/td>Individual harmonic limits. Harmonics values are in % of maximum demand load<\/td>TDD<\/td><\/tr>
    2 \u2264 h < 6<\/th>6 \u2264 h < 11<\/th>11 \u2264 h < 17<\/th>17 \u2264 h < 23<\/th>23 \u2264 h < 35<\/th>35 \u2264 h \u2264 50<\/th><\/tr>
    Odd<\/th>Even<\/th>Odd<\/th>Even<\/th>Odd<\/th>Even<\/th>Odd<\/th>Even<\/th>Odd<\/th>Even<\/th>Odd<\/th>Even<\/th><\/tr><\/thead>
    <20<\/td>4.0<\/td>1.0<\/td>4.0<\/td>1.0<\/td>2.0<\/td>0.5<\/td>1.5<\/td>0.375<\/td>0.6<\/td>0.15<\/td>0.3<\/td>0.075<\/td>5.0<\/td><\/tr>
    20<50<\/td>7.0<\/td>1.75<\/td>7.0<\/td>1.75<\/td>3.5<\/td>0.875<\/td>2.5<\/td>0.625<\/td>1.0<\/td>0.25<\/td>0.5<\/td>0.125<\/td>8.0<\/td><\/tr>
    50<100<\/td>10.0<\/td>2.5<\/td>10.0<\/td>2.5<\/td>4.5<\/td>1.125<\/td>4.0<\/td>1.0<\/td>1.5<\/td>0.375<\/td>0.7<\/td>0.175<\/td>12.0<\/td><\/tr>
    100<1000<\/td>12.0<\/td>3.0<\/td>12.0<\/td>3.0<\/td>5.5<\/td>1.375<\/td>5.0<\/td>1.25<\/td>2.0<\/td>0.5<\/td>1.0<\/td>0.25<\/td>15.0<\/td><\/tr>
    >1000<\/td>15.0<\/td>3.75<\/td>15.0<\/td>3.75<\/td>7.0<\/td>1.75<\/td>6.0<\/td>1.5<\/td>2.5<\/td>0.625<\/td>1.4<\/td>0.35<\/td>20.0<\/td><\/tr><\/tbody><\/table><\/div><\/div>

    Table 2 (IEEE 519-2022)<\/h4><\/div>
    ISC<\/sub>\/IL<\/sub><\/th>Individual harmonic limits. Harmonics values are in % of maximum demand load<\/th>TDD<\/th><\/tr>
    2 \u2264 h < 6<\/th>6 \u2264 h < 11<\/th>11 \u2264 h < 17<\/th>17 \u2264 h < 23<\/th>23 \u2264 h < 35<\/th>35 \u2264 h \u2264 50<\/th><\/tr>
    Odd<\/th>Even<\/th>Odd<\/th>Even<\/th>Odd<\/th>Even<\/th>Odd<\/th>Even<\/th>Odd<\/th>Even<\/th>Odd<\/th>Even<\/th><\/tr><\/thead>
    <20c<\/sup><\/td>4.0<\/td>2.0<\/td>4.0<\/td>4.0<\/td>2.0<\/td>2.0<\/td>1.5<\/td>1.5<\/td>0.6<\/td>0.6<\/td>0.3<\/td>0.3<\/td>5.0<\/td><\/tr>
    20<50<\/td>7.0<\/td>3.5<\/td>7.0<\/td>7.0<\/td>3.5<\/td>3.5<\/td>2.5<\/td>2.5<\/td>1.0<\/td>1.0<\/td>0.5<\/td>0.5<\/td>8.0<\/td><\/tr>
    50<100<\/td>10.0<\/td>5.0<\/td>10.0<\/td>10.0<\/td>4.5<\/td>4.5<\/td>4.0<\/td>4.0<\/td>1.5<\/td>1.5<\/td>0.7<\/td>0.7<\/td>12.0<\/td><\/tr>
    100<1000<\/td>12.0<\/td>6.0<\/td>12.0<\/td>12.0<\/td>5.5<\/td>5.5<\/td>5.0<\/td>5.0<\/td>2.0<\/td>2.0<\/td>1.0<\/td>1.0<\/td>15.0<\/td><\/tr>
    >1000<\/td>15.0<\/td>7.5<\/td>15.0<\/td>15.0<\/td>7.0<\/td>7.0<\/td>6.0<\/td>6.0<\/td>2.5<\/td>2.5<\/td>1.4<\/td>1.4<\/td>20.0<\/td><\/tr><\/tbody><\/table><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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    \r\n\t\t\tUpdating PQSCADA Sapphire<\/span>

    to support the new edition<\/h4>\t\t<\/div>\r\n\r\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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    PQSCADA Sapphire<\/a>\u00a0supports both the IEEE 519 2014 and the 2022 editions so you can compare how you fare in both simultaneously.<\/p>

    3 easy steps to start working:<\/p>