Voltage drop, three-phase power, power factor correction, transformer sizing, wire resistance, energy cost, AC impedance and battery banks.
payments ON MAINNET (real money) · 8 live endpoints
| Endpoint | Price | What it answers |
|---|---|---|
GET /battery-bank | $0.02 | Battery bank layout (series and parallel counts) and runtime from load, voltage, Ah, depth of discharge and efficiency. |
GET /energy-cost | $0.02 | Energy use in kWh and its cost from a flat rate or tiered blocks, plus an optional demand charge and fixed fee. |
GET /ohms-law-ac | $0.02 | Series R, L, C impedance, phase angle, current, resonant frequency, Q and bandwidth at a given frequency. |
GET /power-factor-correction | $0.02 | Capacitor kVAR needed to raise power factor from one value to another, with new kVA and current and capacitance per phase. |
GET /three-phase-power | $0.02 | Balanced three-phase kW, kVA, kVAR and line and phase current from voltage, power factor and one of current, kW or kVA. |
GET /transformer-sizing | $0.02 | Transformer kVA for a load with a stated margin, next common standard size, and primary and secondary full-load current. |
GET /voltage-drop | $0.02 | Voltage drop of a copper or aluminium conductor, single or three phase, by mm2 or AWG, length, current and temperature. |
GET /wire-resistance | $0.02 | Wire resistance R = rho L / A for copper or aluminium at a temperature, or correct a known resistance to a new temperature. |
GET /catalog returns this list as JSON. Activity hub · uptime.
Electrical arithmetic computed locally from the numbers given, using standard formulas, provided as is. Educational estimates only: not for design or code compliance. This shelf does not reproduce NEC or IEC ampacity tables; consult the applicable electrical code and a licensed electrician or engineer. Every paid response carries a disclaimer field.