Electrical Calculations is the best app in the electrical sector, it has many calculations that can help you in your work. It can not miss in your smartphone!

Main calculations:
Wire size, voltage drop, current, voltage, active / apparent / reactive power, power factor, resistance, Maximum wire length, Current carrying capacity of insulated conductors / bare conductors / busbar, Conduit fill, Sizing the circuit breaker, Admissible let-through energy of the cable (K²S²), Operating current, Reactance, Impedance, Power factor correction, Power factor correction of transformer MV/LV, Capacitor power at different voltage, Earthing system, Short circuit current, Conductor resistance, Calculation of the cable temperature, Power losses in cables, Temperature sensors (PT/NI/CU, NTC, Thermocouples…), Analog signal values, Joule effect, Fault current of strings, Risk assessment of overvoltages with atmospheric origin.

Electronic calculations:
Resistor / Inductor color code, Fuses, Sum resistors / capacitors, Resonant frequency, Voltage divider, Current divider, Zener diode as voltage stabiliser, Resistance to reduce voltage, Resistance for led, Battery life, Primary/Secondary winding of transformer, Antenna length, CCTV Harddrive/Bandwidth calculator.

Calculations concerning the motor:
Efficiency, Motor from three-phase to single-phase, Capacitor start motor single-phase, Motor speed, Motor slip, Maximum torque, Full-load current, Diagrams of the three-phase motor, Insulation class, Motor connections, Motor terminals marking.

Conversions:
Δ-Y, Power, AWG/mm²/SWG table, Imperial / metric conductor size comparison, Section, Length, Voltage (Amplitude), sin/cos/tan/φ, Energy, Temperature, Pressure, Ah/kWh, VAr/µF, Gauss/Tesla, RPM-rad/s-m/s, Frequency / Angular velocity, Torque, Byte, Angle.

Resources:
Fuses application categories, UL/CSA fuse class, Standard resistor values, Tripping curves, Table of cables reactance, Table of resistivity and conductivity, Table of unitary voltage drop, Dimensions and weight of cables, IP/IK/NEMA protection classes, Atex marking, Appliance classes, CCTV resolutions, Thermocouple colour codes and data, ANSI standard device numbers, Electrical symbols, Electricity around the world, Plug and socket types, IEC 60320 connectors, C-Form Sockets (IEC 60309), Nema connectors, EV charging plugs, Wiring color codes, SI Prefixes, Units of measurement, Pipes dimensions.

Pinouts:
Ethernet wiring (RJ-45), Ethernet with PoE, RJ-9/11/14/25/48, Scart, USB, HDMI, VGA, DVI, RS-232, FireWire (IEEE1394), Molex, Sata, Apple Lightning, Apple Dock Connector, DisplayPort, PS/2, Fiber optic color code, led, Raspberry PI, ISO 10487 (Car audio), OBD II, XLR (Audio/DMX), MIDI, Jack, RCA color coding, Thunderbolt, SD Card, Sim Card, Display LCD 16x2, IO-Link.

The app also contains a very useful form.

// Option A //

To download Electrical Calculations mod from HappyMod.com.
You need enable the option "Unknown Sources".
1. Click on the above link to download Electrical Calculations mod APK.
2. Save the file in your device Downloads folder.
3. Now tap on Install and wait for the installation to finish.
4. Once it is done, open the game and start playing it right away.

// Option B //

To download Electrical Calculations from HappyMod APP, you can follow this:
1. Open your browser and download the HappyMod APK file from HappyMod.com - the only official website of HappyMod.
2. Open Android Settings and go into Privacy or Security.
3. Tap the option to Allow Unknown Sources and enable it.
4. Go to your Android downloads and tap the APK file.
5. Follow the directions on the screen to install it.
6. Search Electrical Calculations in HappyMod App.