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Short-circuit current and I²t thermal-stability report

The short-circuit calculation outputs fault current, but there is no complete short-circuit summary, no I²t thermal-stability verification and no equipment-withstand comparison.

Wired, not run yetP1All reportsComputing…
Wiring check (verbatim, from the engine source)Wired (specification switch name matches the engine)
PriorityP1
Switch named by the specificationstudyOptions.enableI2tCurve
Wired verbatim in the engine?yes（3 evidence）
Engine switches that actually produce this reportenableI2tCurve · enableScDecay · enableDeviceShortTime · enableDeviceThermalCheck · enableFaultScanAllBus · enableContinuationPowerFlow
Report chapters these switches can appendi2t-curve · sc-decay-curve · device-shorttime · fault-scan-all · continuation-flow
Built-in chapter list (from the specification)The specification asks for 8 chapter(s); the engine can produce 5 of them for this report.
Standards basisIEC 60909; IEC 60865; GB/T 15544.1; engineering practice for short-circuit thermal and dynamic stability checks.
The specification switch `studyOptions.enableI2tCurve` is wired verbatim (7 compatible aliases in `engines/i2t-curve.js`). The wider P1-101 scope (fault-scan-all, sc-decay, device short-time, continuation power flow) is wired under the additional switches listed below.

evidence · file:line

Wiring check (verbatim, from the engine source) · evidence
  • [Wired verbatim in the engine?] design.js:1454 · const wantI2tCurve = SO.enableI2tCurve === true || SO.enableI2TCurve === true
  • [Wired verbatim in the engine?] engines/i2t-curve.js:117 · 'enableI2tCurve', // ← 主清单 P1-103 契约主名
  • [Wired verbatim in the engine?] engines/i2t-curve.js:1005 · studyOptions: Object.assign({}, ((IN || {}).studyOptions || {}), { enableI2tCurve: true }),
  • enableI2tCurve
    • design.js:1454 · const wantI2tCurve = SO.enableI2tCurve === true || SO.enableI2TCurve === true
    • engines/i2t-curve.js:117 · 'enableI2tCurve', // ← 主清单 P1-103 契约主名
    • engines/i2t-curve.js:1005 · studyOptions: Object.assign({}, ((IN || {}).studyOptions || {}), { enableI2tCurve: true }),
  • enableScDecay
    • design.js:1416 · || SO.enableShortCircuitDecay === true || SO.enableScDecay === true || SO.enableScDecayCurve === true
    • engines/sc-decay.js:113 · 'enableScDecay', 'enableScDecayCurve', 'enableScDc', 'enableSCDC', 'enableDcDecay',
    • engines/sc-decay.js:53 · * 别名：enableShortCircuitDc / enableScDecay / enableScDecayCurve / enableShortCircuitDecay /
  • enableDeviceShortTime
    • design.js:1433 · const wantDeviceShortTime = SO.enableDeviceShortTimeCheck === true || SO.enableDeviceShortTime === true
    • engines/device-shorttime.js:117 · 'enableDeviceShortTime', // 旧名（简写）
  • enableDeviceThermalCheck
    • design.js:1435 · || SO.enableThermalDynamicCheck === true || SO.enableDeviceThermalCheck === true
    • engines/device-shorttime.js:121 · 'enableDeviceThermalCheck', // 旧名（只提热稳定）
  • enableFaultScanAllBus
    • engines/fault-scan-all.js:79 · const SWITCH_MAIN = 'enableFaultScanAllBus';
    • design.js:1983 · /* ★ P1-103：故障遍历批量扫描（全母线节点自动遍历三相 + 单相接地）—— 开关 studyOptions.enableFaultScanAllBus（缺省关闭）。
    • engines/fault-scan-all.js:52 · * 开关：`studyOptions.enableFaultScanAllBus`（**缺省 false**；兼容别名见 SWITCH_ALIASES）
  • enableContinuationPowerFlow
    • engines/continuation-flow.js:110 · const SWITCH_MAIN = 'enableContinuationPowerFlow';
    • engines/continuation-flow.js:113 · 'enableContinuationPowerFlow', // ← 主名（任务书字面）
    • design.js:1951 · * 开关主名 enableContinuationPowerFlow（别名由引擎 CPF.resolveContinuationFlow 统一解析；缺省 false → 产物零残留）。
Built-in chapter list (from the specification)8 chapter(s)
  1. 1.Report overview: project information, fault-case list, system impedance, reference standards, model assumptions.
  2. 2.System equivalent parameters: system short-circuit capacity, impedance parameters of each element.
  3. 3.Multi-fault-type short-circuit current summary: three-phase, single-phase-to-earth, two-phase and two-phase-to-earth faults; positive / negative / zero-sequence current at each fault point and peak short-circuit current.
  4. 4.I²t thermal-stability chapter: fault duration, short-circuit energy integral curve, comparison against the permissible I²t of cables / busbars / switchgear.
  5. 5.Equipment thermal-stability checklist: pass / fail verdict per device with margin calculation.
  6. 6.Peak dynamic-stability current check (simplified).
  7. 7.Conclusions and risk list: equipment that fails thermal stability, protection operating-time margin analysis, engineering recommendations.
  8. 8.Appendix: fault-case definitions, element impedance tables, I²t formulas.
Chapters produced by the engine for this scheme0 / 5

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
  • I²t versus time curve
  • Short-circuit current TCC overlay curve
  • Whole-network short-circuit capacity distribution chart
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
  • · Quasi-steady-state sequence-component algebraic model; no dynamic arc-resistance variation.
  • · No detailed mechanical-deformation check of dynamic-stability stress.
  • · No complex transient processes beyond long-term DC-component decay.
  • · For engineering scheme verification only; it is not a substitute for a type-test report.

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