Protective relay technician calculator for Symmetrical Components, Apparent Impedance, Phase-Phase calculations, Polar-to-Rectangular conversions and more. The iPad version goes well beyond the iPhone version in that the larger screen allows for more details. Use the iPad version for training and the iPhone version for your toolbox.
The "In-Depth" pages in the iPad version take you step by step through many calculations like your Symmetrical Components calculations, Phase-Phase calculations, k0 calc, Phase-Ground Relay Test set-up calcs, Phase-Phase Relay Test set-up calcs and 3-Phase Relay Test set-up calcs.
The "Relays By The Numbers" pages include ten pages of simple relay test simulations including 21, 27, 40, 46, 47, 50, 59, 67, 81, 87T and 87B simulations.
This is a relay tech calculation tool and a relay tech training tool.
Ver.4.2 also brings us up to date with Apple required iOS updates.