LoadCalc Pro — Electrical

LoadCalc Pro turns a list of equipment into a complete electrical load estimate — connected and maximum demand, phase balance, transformer and DG sizing, breaker and cable selection, a single line diagram and a share-ready PDF. Everything runs on the phone, offline WHAT IT CALCULATES • Connected load in kW, kVA and kvar, with the resulting power factor • Maximum demand using per-category demand factors plus an overall diversity factor • Full load current per item and design current at the incomer • Phase-by-phase loading, percentage unbalance and estimated neutral current • Starting kVA for the largest machine, from the starting method you pick • Daily, monthly and yearly energy, with running cost at your tariff SIZING, NOT JUST TOTALS • Distribution transformer — spare capacity, maximum loading limit, derating for ambient temperature and altitude, and the rating needed to hold the starting voltage dip inside your limit • Prospective short circuit current in kA, fault MVA and a recommended breaker breaking capacity • Incomer and sub-circuit breakers from standard frame currents • Cable cross-section with derating applied, shown next to the computed duty so you can see the margin • Capacitor bank kvar to reach a target power factor, in standard steps, with a detuned-reactor flag for high harmonic loads • Diesel generator set from both the load and the starting requirement Every recommendation sits beside the number that drove it, so you can accept it or override it. EQUIPMENT CATALOGUE AND TEMPLATES • More than 90 ready equipment presets — lighting, fans, socket outlets, kitchen appliances, AC units, water heaters, pumps, lifts, lathes, grinders, welding sets, compressors, furnaces, server racks, UPS, EV chargers and more • Project templates for a 2 BHK flat, a 3 BHK villa, a 24-flat block, an office floor, a workshop and more — start from a real schedule instead of a blank page • Enter ratings the way the nameplate does: W, kW, kVA, HP, shaft kW or amps, with motor efficiency applied for shaft figures • Starting methods with realistic inrush — DOL, star-delta, auto-transformer, soft starter and VFD • Mark loads as continuous or non-linear and the estimate responds DESIGN CHECKS The app reviews the finished estimate and flags what needs attention — heavy phase unbalance, a transformer loaded past its limit, a starting dip over your allowance, a poor power factor, a high harmonic share, a motor too large for the source, cable or breaker mismatches — each with the action to take. SINGLE LINE DIAGRAM A single line diagram is generated from the schedule: source, transformer, incomer, bus and category feeders with their breaker and cable data. It is drawn by the app and goes straight into the PDF. SHARE AND EXPORT • Multi-page PDF — summary sheet, single line diagram, full load schedule and the design notes • CSV of the schedule for your own spreadsheet • Quick text summary for WhatsApp or email PRIVACY AND OFFLINE No internet permission, no account, no ads, no tracking. Estimates are stored only on your device. The app works the same on site with no signal as it does in the office. SETTINGS THAT MATCH YOUR SITE System voltage, frequency, target power factor, spare capacity, transformer loading and impedance, diversity, ambient temperature, altitude, allowable starting dip, source fault level, tariff and currency are all yours to set per project. Figures follow the common IEC / IS preferred-number series. LoadCalc Pro is a design aid — always confirm the final design against the standards and local regulations that apply to your installation