# 16 Free Programs for Electrical Engineers and Electrical Technicians

We present these 16 free programs, ideal for students and professionals in electrical engineering and electricians, both to work and to learn.

All these programs are free, we hope that you download them, try them and leave us your comments and opinions.

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## Capacitor Calculator - Calculates capacitor formulas. Does codes and Watt/Amp conversion.

A self-contained calculator that needs no install and is contained in one small exe file. The calculator converts capacitor codes into F, mF, μF, nF, and pF. Converts capacitance and voltage into kilowatt hours, watt hours, milliamp hours, amp seconds, and amp hours also. May expand into full electrical app in future depending on whether or not people wish to contribute coding, how much time I have, and depending on the interest that this gets.

## Resistivity Calculator - Simple and easy application to calculate resistivity.

With this application you can easily calculate total resistivity of electrical components, connected in series or parallel.

## CableCALC - Simple application to calculate cable electrical properties.

With this ultra lightweight and very user friendly application you can calculate cable resistivity and it's power consumption just in seconds!

## Electrical Study - Mobile Electrical Engineering Learning Assistant.

This app covers entire aspects of the subject, from basic engineering to advanced and modern topics related to Electrical Engineering and Technology. All articles of this app are totally based on practical experiences as well as a strong base of theoretical knowledge and is written in very simple and understandable English.

## LaSolv - Solves electrical AC circuit equations symbolically.

In electrical engineering, taking an AC circuit and deriving the gain, input impedance or what have you is always tedious and error prone. LaSolv takes a SPICE like description of your circuit and solves for whatever parameter you specify- voltage gain, trans-impedance, input impedance, etc.

## DiInSo - Orient to solve 3D direct and 2D/3D inverse problems of ERT.

'Direct-Inverse Solver' (DiInSo) is an electrical resistivity tomography (ERT) software which orient to solve 3D direct and 2D/3D inverse problems on direct current (DC).
X86 version of DiInSo is totally free and can be use in scientific purposes, but it also has not any guarantees, so use DiInSo at your own risk.

## Electronic Circuit Optimization - Optimer: a SPICE base electrical / electronic circuit optimization tool.

This project is dedicated to the optimization of (any) electrical and electronic circuits and components using evolutionary and heuristic algorithms incorporated with SPICE simulators (such as HSPICE, ngSPICE, etc.).

## Soil-Resistivity-Re2cap - Software for calculation of two layer soil resistivity.

RE2CAP is free software (Freeware) that was designed and developed i for the area of electrical engineering. RE2CAP is a graphical tool for a two-layer soil electrical resistivity modeling by the inversion of parameters by numerical methods. The results obtained can be used as a basis for grounding designs. It is a simple and intuitive program.

## SWAT-EM - Specific Winding Analyse Tool for Electrical Machines.

SWAT-EM is a software for designing and analyzing of windings systems for electrical machines. Currently supported are rotating field windings (permanent-magnet motors, induction motors, synchronout reluctance motors) with any number of phases. This can be distributed full pitch winding, distributed fractional slot winding or tooth-coil winding.

## Penthode - Penthode simulates, draw and plot electrical power distributions.

Given a simple net-list describing the high level power architecture of your system.

## Dolomites - An application suite for the design of electrical machine and drives.

This project is developed at the Electric Drives Lab (EDLab), dept. of Industrial Engineering, of the University of Padova.

## Estimate - Web based Cost Estimation, Material Takeoff and Reconciliation Tool.

"Estimate" is an Open Source web based Construction Cost Estimating Software designed for medium and large Civil Construction and EPC (Engineering Procurement and Construction) companies. Features include Management of Schedule of Rates, Analysis of Rates, Project Estimation (Definitive and Control), Tender Evaluation, Cost Sheet preparation, BOQ Generation, Audit and Projection.

## FidoCadJ - Simple and intuitive 2D vector drawing for electronics and not only.

A multiplatform vector drawing program with a complete library of electronic symbols. Schematics and drawings are stored in a very compact text format. There is no netlist concept behind the drawings (so no simulation, and this is a choice) but this allows a great graphical flexibility and ease of use, making FidoCadJ the perfect tool for exchange sketches in forum and newsgroup discussions with a few clicks.

## Suivi Conso Elec - Aims at recording and analysing home's electrical power consumption.

This project aims at recording and analysing home's electrical power consumption.

## DraftCable - CAD design tool for electrical and block diagrams with net list compilation.

CAD design tool for electrical and block diagrams with net list compilation. Tool for creating new parts included.

## Workshop Organizer - Light-weight & cross platform inventory controller for home-workshops.

Workshop Organizer is light-weight, cross platform inventory controller for home-workshops. This application is specifically design to manage electronic/electrical components at home-workshops, but it can use to manage other areas of workshop including tools, machinery and mechanical components, etc.