IEEE Application Guide for IEEE Std 1547-2018, IEEE Standard for Interconnection and Interoperability of Distributed Energy Resources with Associated Electric Power Systems Interfaces

Data records

• The document is designated IEEE Std 1547.2-2023 and is cited as IEEE 1547.2-2023; its copyright line carries the year 2024. Value: IEEE 1547.2-2023. Source: IEEE 1547.2-2023, clause Front matter. Verified 2026-10-24. Record std.ieee-1547-2.designation
• IEEE 1547.2-2023 is a revision of the 2008 edition of the application guide, IEEE 1547.2-2008. Value: 2023. Source: IEEE 1547.2-2023, clause Front matter. Verified 2026-10-24. Record std.ieee-1547-2.revision-of
• IEEE 1547.2-2023 is an informative application guide for IEEE 1547-2018 that gives the Area EPS operator, the authority governing interconnection requirements, the DER operator, the designer and the installer the technical background, the rationale and worked examples behind the base standard; it carries no requirements of its own. Clause 1.5 limits it as the base standard is limited, to distribution-connected DER. Source: IEEE 1547.2-2023, clause 1.2, 1.5. Verified 2026-10-24. Record std.ieee-1547-2.scope
• Clause 6.5.1.2 of IEEE 1547.2-2023 advises that the Area EPS operator coordinate the underfrequency and overfrequency trip settings with the regional reliability coordinator, since load-shedding thresholds and frequency response are not the same from one interconnection to another, and that the default settings be reviewed for each system. Source: IEEE 1547.2-2023, clause 6.5.1.2, 6.5.2.1. Verified 2026-10-24. Record std.ieee-1547-2.structure.frequency-trip-guidance
• Clause 4.8 of IEEE 1547.2-2023 explains that an isolation device is not a universal requirement of IEEE 1547-2018: whether one is needed follows from Area EPS operating practice, occupational safety rules and the electrical codes; the usual location is the PCC, though the parties may agree on another accessible point in series with the DER; and the device need not double as a paralleling or interrupting device. Source: IEEE 1547.2-2023, clause 4.8. Verified 2026-10-24. Record std.ieee-1547-2.structure.isolation-device
• Clause 11.3.2 of IEEE 1547.2-2023 explains that whether an open phase is detected depends on where the measurement is taken and on the interconnection transformer connection, and clause 11.3.2.3 describes commissioning practice: the test is made at the reference point of applicability, or at an agreed point from which zero-sequence continuity to the PCC is preserved, with every DER device operating, voltage, current and time captured on all three phases at once, and the phase restored while the DER stays connected. Source: IEEE 1547.2-2023, clause 11.3.2, 11.3.2.3. Verified 2026-10-24. Record std.ieee-1547-2.structure.open-phase-verification
• Clause 11.5 of IEEE 1547.2-2023 describes a periodic test program that the integrator or manufacturer proposes and the AGIR or the Area EPS operator accepts, preventive or condition-based rather than run to failure, documented in an inspection and test plan that lists each test with its procedure, frequency, acceptance criteria and evidence; it cautions that acceptance values set at commissioning can be too severe for equipment in service. Clause 11.5.3 asks that changes to settings, software, hardware and configuration be submitted to the Area EPS operator before they are made. Source: IEEE 1547.2-2023, clause 11.5, 11.5.3. Verified 2026-10-24. Record std.ieee-1547-2.structure.periodic-testing
• Clause 11.4 of IEEE 1547.2-2023 explains how the design evaluation uses the type test results reporting document: the utility's specified settings are compared with the evaluated range and the applied setting of the device, a requirement outside the evaluated range cannot be met by that device, an applied setting that differs from the specified setting is corrected during installation evaluation or commissioning, and a snapshot of all applied settings is kept after commissioning. Source: IEEE 1547.2-2023, clause 11.4. Verified 2026-10-24. Record std.ieee-1547-2.structure.results-reporting
• Clause 11 of IEEE 1547.2-2023 covers test and verification: example systems with their stakeholders, the gap between a type test and the installed system, open-phase detection and its commissioning verification, results reporting, periodic testing and fault current characterization. Source: IEEE 1547.2-2023, clause 11. Verified 2026-10-24. Record std.ieee-1547-2.structure.test-and-verification
• Clause 11.3 of IEEE 1547.2-2023 explains why passing a type test does not prove an installation: a DER's power quality contribution depends on the grid it is connected to, so the design evaluation, modeling, measurements at commissioning or in service, or monitoring can each trigger field power quality tests; and an unintentional islanding method other than the balanced load test calls for field hardware together with a design evaluation and a commissioning test. Source: IEEE 1547.2-2023, clause 11.3. Verified 2026-10-24. Record std.ieee-1547-2.structure.type-test-gap
• Clauses 6.4.1.1 and 6.4.1.3 of IEEE 1547.2-2023 explain the mandatory voltage tripping requirements of IEEE 1547-2018: the shall-trip windows were widened in the 2018 revision so that ride-through can occur, the trip settings bound the ride-through that is actually effective since a trip overrides every other function, and the clearing times should be agreed by the Area EPS operator with the regional reliability coordinator, ideally on the basis of regional reliability studies. Source: IEEE 1547.2-2023, clause 6.4.1.1, 6.4.1.3. Verified 2026-10-24. Record std.ieee-1547-2.structure.voltage-trip-guidance
• The front matter of IEEE 1547.2-2023 gives its full title as IEEE Application Guide for IEEE Std 1547-2018, IEEE Standard for Interconnection and Interoperability of Distributed Energy Resources with Associated Electric Power Systems Interfaces. Value: IEEE Application Guide for IEEE Std 1547-2018, IEEE Standard for Interconnection and Interoperability of Distributed Energy Resources with Associated Electric Power Systems Interfaces. Source: IEEE 1547.2-2023, clause Front matter. Verified 2026-10-24. Record std.ieee-1547-2.title