Roanoke EMC vs Vexten

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Vexten brings electrical engineering to the pocket of students, field electricians, and design engineers. Run calculations under NEC and IEC criteria, solve step-by-step equations, and design complete electrical panel schedules 100% offline with zero intrusive ads. WHAT'S INSIDE VEXTEN? 1. 140+ TECHNICAL TOOLS & TABLES ACROSS 9 DISCIPLINES • Conductors: AC/DC voltage drop using phasor impedance (R·cosφ + X·sinφ), ampacity with ambient temperature and bundling derating, optimal wire sizing in AWG and mm², Joule heating, and parallel conductors. • Conduits & Raceways: Conduit fill (EMT, IMC, RMC, PVC, HDPE), cable tray sizing, bending radius, and pulling tension. • Motors: Full-load amperage (FLA), locked-rotor current (LRA), star-delta starters, VFD parameters, torque, slip, and efficiency. • Transformers: kVA sizing, primary/secondary currents, impedance Z%, voltage regulation, K-factor, and parallel operation. • Protection & Grounding: Circuit breaker and fuse sizing, cable-protection coordination (I²t), ground grid, and earth resistance. • Electronics: Passive RC/RL/RLC filters, op-amps, 555 timers, BJT/MOSFET biasing, voltage dividers, and regulators. • Lighting: Lumen method, zonal cavity, point-by-point illuminance, and lighting power density (LPD). • Thermal Heating: Watt density, fluid heating, heat transfer losses, and thermal insulation. • Power, Solar & Batteries: PV array sizing, battery banks, UPS runtime, power factor correction (capacitor banks), and real-time unit converters. 2. ELECTRICAL PANEL DESIGN & OPTIMIZATION SUITE (NEC / IEC) Model complete distribution systems from the main panel to branch circuits: • Hierarchical main panels, subpanels, and dry-type transformers with automatic cascading load aggregation. • Automatic phase balancing (A, B, C) accounting for real power factor. • Coordinated sizing of feeders, neutral, grounding conductors, and raceways. • Short-circuit current (Isc) estimation and cumulative voltage drop. 3. 370+ FORMULAS WITH STEP-BY-STEP SUBSTITUTION Interactive library of electrical, electronic, and physics equations. Solve for any variable, convert units in real time, and inspect the complete mathematical substitution step by step—no black boxes. 4. ADVANCED 2D SCIENTIFIC & PHASOR CALCULATOR • Natural 2D textbook display for fractions, roots, and exponents. • Full complex number and phasor algebra in polar (r∠θ) and rectangular (a+jb) forms for AC circuit analysis. • Numerical equation solver f(x)=0, derivatives (d/dx), definite integrals, summations, matrices, and vectors. 5. PROFESSIONAL A4 PDF REPORTS & HD TECHNICAL CARDS • Export formal A4 PDF Calculation Reports featuring input parameters, compliance checks, wire gauge comparison tables, applied equations, and an optional professional signature line. • Share high-definition technical summary cards instantly via WhatsApp or email. BUILT FOR EVERY STAGE OF THE TRADE • Engineering & trade students: Check AC/DC circuit, machinery, and installation problems with full step-by-step formula substitution. • Field electricians & contractors: Work reliably in basements, plants, and substations without cell service, and back up your quotes with formal PDF documentation. • Design & maintenance engineers: Audit loads on site, balance panel schedules, and cross-check AWG and metric mm² sizing under NEC and IEC simultaneously. 100% free, 100% offline, and zero intrusive ads.