ElecSimHub

Protection selectivity verification report

The short-circuit results can be used for protection checks, but there is no TCC curve, no upstream / downstream selectivity summary and no sensitivity-coefficient report.

Wired, not run yetP1All reportsComputing…
Wiring check (verbatim, from the engine source)Wired under a different switch name (specification name is NOT wired)
PriorityP1
Switch named by the specificationstudyOptions.enableRelayCheck
Wired verbatim in the engine?no（0 evidence）
Engine switches that actually produce this reportenableProtectionCoord · enableProtectionTuning · enableSeqProtectionCheck · enableZsiCheck
Report chapters these switches can appendprotection-coordination · protection-tuning · seq-protection · zsi-check
Built-in chapter list (from the specification)The specification asks for 9 chapter(s); the engine can produce 4 of them for this report.
Standards basisIEC 60255; GB 50062; codes for overcurrent and earth-fault protection setting and selectivity verification.
⚠ The specification switch name `studyOptions.enableRelayCheck` does NOT exist anywhere in the engine — it was never wired. The capability the report needs (TCC overlay, upstream/downstream selectivity, sensitivity coefficients) IS implemented, under `enableProtectionCoord` (`engines/protection-coordination.js`, `engines/tcc-library.js`) plus `enableProtectionTuning`, `enableSeqProtectionCheck` and `enableZsiCheck`. Nothing is renamed silently: the spec name is reported as unwired.
Switch named by the specification ≈ enableRelayCheck · Wired under a different switch name (specification name is NOT wired)

evidence · file:line

Wiring check (verbatim, from the engine source) · evidence
  • enableProtectionCoord
    • design.js:1125 · if (SO.enableProtectionCoord !== true) return { enableProtectionCoord: false };
    • design.js:1293 · const wantProtCoord = SO.enableProtectionCoord === true && Array.isArray(prot.protectionCoord);
    • design.js:785 · enableProtectionCoord: po.enableProtectionCoord === true,
  • enableProtectionTuning
    • engines/protection-tuning.js:101 · const SWITCH_MAIN = 'enableProtectionTuning';
    • engines/studies.js:1071 · return _pt || { ok: false, study: 'protection-tuning', error: 'studyOptions.enableProtectionTuning is off (def
    • engines/protection-tuning.js:21 · * 开关：`studyOptions.enableProtectionTuning`（**缺省 false**；旧名/变体见 SWITCH_ALIASES，由
  • enableSeqProtectionCheck
    • design.js:71 · const SEQP = require('./engines/seq-protection'); // ★ P2-13：负序/零序过流保护灵敏度校验（只读复用 sequence-networks/shortcirc
    • engines/seq-protection.js:84 · const SWITCH_MAIN = 'enableSeqProtectionCheck';
    • design.js:1817 · * 开关 studyOptions.enableSeqProtectionCheck（缺省 false → 本块一行不进入，响应逐位一致）。 */
  • enableZsiCheck
    • engines/zsi-check.js:110 · const SWITCH_MAIN = 'enableZsiCheck';
    • engines/studies.js:1080 · return _out || { ok: false, study: 'zsi-check', error: 'studyOptions.enableZsiCheck is off (default false)' };
    • engines/zsi-check.js:6 · * 开关：studyOptions.enableZsiCheck（缺省 false；旧名/变体兼容别名见 SWITCH_ALIASES，
Built-in chapter list (from the specification)9 chapter(s)
  1. 1.Report overview: project information, protection-device list, fault cases, standards applied, model assumptions.
  2. 2.Protection device parameter summary: overcurrent and earth-fault primary / secondary settings, curve type, time delay.
  3. 3.Basic short-circuit data: maximum and minimum short-circuit current at each fault point.
  4. 4.TCC protection-characteristic overlay chart (upstream and downstream devices).
  5. 5.Selectivity verification results: upstream / downstream operating-time-difference check, list of selectivity failures.
  6. 6.Sensitivity-coefficient check: sensitivity coefficient under minimum fault current, with devices flagged when sensitivity is not met.
  7. 7.Protection operating-time summary table with risk grading.
  8. 8.Conclusions and recommendations: remediation at locations where selectivity fails.
  9. 9.Appendix: protection setting tables, fault-case definitions.
Chapters produced by the engine for this scheme0 / 4

This report has not been run for the current scheme yet.

Nothing is invented: run it, or enable the switches on the relevant tool pages, and the produced chapters appear here.
Conclusions produced for this report0

No conclusion of this report was produced (the report has not been run, or it produced none).

Charts
Required by the specification
  • TCC time-current characteristic curve
  • Whole-network protection sensitivity heat map
Produced by the engine (report-charts study)

This report has not been run for the current scheme yet.

Explicitly out of scope (from the specification)4
  • · Overcurrent and earth-fault protection only — no distance or differential protection.
  • · No relay hardware error and no instrument-transformer error.
  • · No protection communication, interlocking logic or transient maloperation.
  • · Conclusions need on-site review by an engineer; they are not a setting-commissioning document.

Sends one design request with exactly the switches below enabled. Nothing is calculated when the page opens.