Engineering Calculators
Professional electrical calculations with step-by-step breakdowns and standard clause references.
Arc Flash
IEEE 1584 incident energy analysis
Battery/UPS Sizing
Size battery banks and UPS systems per IEEE 485, IEC 62485, AS/NZS 4086
Busbar & Busduct Sizing
Busbar and busduct sizing with thermal, mechanical, and voltage drop verification
Cable Pulling
Physics-based cable installation feasibility — tension, SWBP, jam ratio, conduit fill
Cable Sizing
Size cables for current rating per AS/NZS 3008, BS 7671, IEC 60364
Cable Tray
Cable tray sizing and fill calculations with cross-section visualization
Conduit Fill
NEC Chapter 9 conduit fill — find conduit size or max conductors
Earthing System
Earthing/grounding electrode resistance, touch & step voltage analysis
Emergency Power
Generator, UPS sizing, and emergency load management with load sequencing
EV Charging
EV charger sizing, demand factors, and load management
Harmonic Analysis
IEEE 519 / IEC 61000 harmonic analysis and power quality assessment
HVAC Electrical Sizing
Motor sizing, protection, and cable selection for HVAC equipment
Lighting Design
Lumen method lighting design with layout, glare, and energy compliance
Lightning Risk & Protection
IEC 62305 risk assessment and lightning protection system design
LV Network Design
Multi-node network design with interactive SLD generation
Maximum Demand
Maximum demand assessment with diversity factors
Motor Calculator
FLC, starting current, protection sizing, cable requirements
MV Cable Sizing
MV cable sizing with IEC 60287 thermal rating and charging current
Power Factor
Capacitor bank sizing and power factor correction with harmonic analysis
Protection Coordination
Device coordination and discrimination
Short Circuit
Calculate fault current and verify cable thermal withstand
Solar PV & Energy Storage
PV array sizing, string calculations, and energy storage
Transformer
Impedance, losses, efficiency & protection sizing
Voltage Drop
Analyze voltage drop and maximum cable length