Standards-based methods • Engineering review required

Power Systems
Analysis
Reimagined

Arc flash studies, short circuit calculations, and TCC coordination in one unified platform. Drag. Drop. Analyze.

Access is subject to product review and availability

IEEE 1584-2018
IEC 60909
ANSI C37
NFPA 70E

Review-required evidence — independent review pending

13
Selected Kernel Checks
800+
Device Curves
±0.1%
Selected Kernel Tolerance
Required
Engineering Review
Core Capabilities

A shared workspace for power systems analysis

Review-required beta with selected reference checks. From arc flash to coordination, all in one platform.

IEEE 1584-2018

Arc Flash Analysis

IEEE 1584-2018 AC calculation path with incident energy and arc flash boundary for supported inputs. Assisted DC estimates require separate engineering assessment.

5 electrode configs (VCB, VCBB, HCB, VOA, HOA) Assisted DC estimates Review-gated labels with QR codes
IEC 60909 & ANSI C37

Short Circuit Studies

IEC 60909 studies with selected cross-checks and ANSI duty calculations for supported models. Confirm topology, fault type, and method limits before use.

3-phase, SLG, LL, DLG faults Momentary & interrupting duty NACD ratio calculation
Smart Library

TCC Coordination

Browse curve profiles and equation-driven settings. Exact-model provenance and settings matter: catalog presence is not engineering approval.

Exact-model source records Drag-to-edit curves CTI screening
Visual One-Line Editor

System Builder

Drag-and-drop electrical system design with in-place fault currents and arc flash results displayed directly on the diagram.

Real-time calculations Scenario Manager What-If analysis sliders
Review-Required Screening

Auto-Coordination

Explore proposed protective-device settings and CTI margins for supported profiles. Independent review, manufacturer selectivity data, and project-specific motor/inrush checks remain required.

CTI margin screening Authority-gated proposals Upstream/downstream comparison
Professional Output

Reports & Export

Prepare study reports, data exports, and review-gated arc flash labels. Workflow approval records do not constitute independent validation or PE signoff.

Study reports and data Review-gated labels Approval and revision records
Calculation Scope

Standards-based calculations

Selected reference checks support a bounded engineering review workflow. Independent project validation remains pending; review inputs, device evidence, and method limits before safety decisions.

Arc Flash

IEEE 1584-2018
Incident Energy cal/cm²
Full / reduced-current energy comparison
Arc Flash Boundary mm
Boundary at the specified energy threshold
Arcing Current kA
Iarc = f(Ibf, Voc, G, config)

Short Circuit (IEC)

IEC 60909-0:2016
Initial SC Current kA
I"k = c × Un / (√3 × |Zk|)
Peak Current kA
ip = κ × √2 × I"k
Motor Contribution kA
Motor contribution depends on the network model

Short Circuit (ANSI)

C37.010 / IEEE 551
Momentary Duty kA
Imom = Isym × MF (first-cycle)
Interrupting Duty kA
Iint = Isym × NACD × MF
Closing & Latching kA
Closing duty depends on method and X/R

Protection

IEEE C37.112 / IEC 60255
Coordination Time s
CTI = t_backup - t_primary; project-specific margin
Inverse Time s
t = TDS × k / [(I/Ip)^n - 1]
I²t Let-Through A²s
I²t = ∫₀ᵗ i²(t) dt

Selected IEEE Checks

13 selected kernel cases at ±0.1%; two official-tool transcriptions still need retained case worksheets

Selected IEC Cross-Checks

Selected IEC 60909 cases compared with pandapower; coverage and tolerances are case-specific

Independent Review

Complete Annex D and ETAP/SKM project comparisons remain pending; no independent engineer approval is claimed

See It In Action

Built for real engineers

Watch how NormaLang Studio transforms complex power systems analysis into an intuitive, visual experience.

NormaLang Studio - System Analysis

Click to play demo

Equipment Panel 13.8kV Main Bus M Arc Flash Results 12.4 cal/cm2 PPE Category 3 AFB: 1.8 m I"k: 35.2 kA

Drag & Drop Design

Build one-line diagrams visually with real-time validation.

In-Place Results

Fault currents and arc flash energy shown directly on diagram.

Scenario Manager

Compare Utility vs Generator, test future expansion scenarios.

Pro Reports

PDF labels, Word reports with methodology, Excel batch export.