GMR - Geometric Mean Radius - quantifies a conductor’s internal inductance. By definition the GMR is the radius of an infinitely thin tube having the same internal inductance as the conductor out to a one-foot radius. GMR is often in feet to ease the calculations with distances measured in feet. Note that the GMR is less than the actual conductor radius.
Electrical units, amps and electrical wiring, wire gauge and AWG, electrical formulas and motors.
Real, imaginary and apparent power in AC circuits.
Density, specific heat and thermal conductivity related to temperature.
Electrical resistance in plain copper or aluminum wires.
Gauge, weight, circular mils and electrical resistance in copper wire.
Amps vs. cable size for fixed installations in buildings.
Online shareable electric circuit diagram.
480V electrical motor wiring data - NEMA amps, starter size, HMCP size for motors ranging 1/2 to 500 hp.
Electric resistance in wire made of Copper, Aluminum, Brass, Constantan, Nichrome, Platinum, Silver or Tungsten.
Commonly used electrical formulas like Ohms Law and more.
Resistors in parallel and serial connections.
The relation between voltage, current and electrical resistance.
The reciprocal of electrical resistance is conductance.
Electrical resistance and resistivity.
Convert between single phase (120, 240 and 480 Voltage) and three phase (240 and 480 Voltage).
Power equations for single phased electrical systems.
Inductive loads and power factors with electrical three-phase motors.
Electrical 3-phase equations.
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