InstElectric PRO

Tool to support the calculation of electrical installations.

· Dimensioning of low voltage circuits (public concurrence, derivación individual, LGA, local fire or explosion risk, local dampening, etc.) with the most frequent installation methods

· Calculation of the phase size of the cable, neutral, protective conductor, nominal protection current, voltage drop

· Calculation criteria based on the admissible current of the cable, maximum voltage drop and overcurrent protection

· Calculation of the diameter and designation of the conduit

· Designation of the most used cables/insulated conductors

· Circuits with automatic circuit breaker until In = 4000 A (Ir rating setting), maximum fuse In = 1600 A (gG type), maximum 12 conductors parallel per phase, maximum size 630 mm²

· Calculation short circuits, including MV network, LV lines and final circuit

· Estimate of the maximum short-circuit current (simplified method)

· Maximum protected length for minimum short circuit (approximate method)

· Calculation of earthing resistance (rods, buried conductor, rings and grid)

· Distance LV earthing and MV earth from the substation

· Forecast of loads of a building destined to houses with several sections: dwellings, common services, commercial premises/offices and garage with/without infrastructure for recharging electric vehicles

· Reactive power of the capacitor bank for the compensation of the power factor (cos φ) and capacity (µF) of the capacitors

· Calculation of the C/K Factor for automatic capacitor bank

· Compensation of the power factor for a three-phase transformer

· Choice of installation system in the function of the circuit, cable and its situation

· Overvoltage due to defects to earth in medium voltage MV depending on the earthing schmemes

· Power in an unbalanced three-phase system

· Overvoltages due to loss of neutral conductor, earth fault and short circuit

· Calculation of the electricity parameters of a single-phase or three-phase (balanced)

· Calculation of a transformer performance

· Determination of the secondary voltage of a transformer acoording to switch position

· Distribution of load of transformers in parallel

· Verification resistance of the assembly to short-circuits

· Dissipated power of a assembly

· Size of trays

· Conduits characteristics according to the installation method

· Conversions of wire sizes and conduits threads

· Configuration of constants (voltages, conductivity, temperatures, etc.) that affect electrical calculations

· Adjusting the protections (circuit breakers and fuses)

· Selection of minimum gauge for circuit-breakers with regulation and maximum cable size for multi-conductor grouping per phase

· Selection of the calculation method estimation of the reactance

· Conductivity of the conductor depending on the current of the circuit (constant, according to the expected current, maximum cable temperature)

· Use reduction factors by grouping cables/circuits

· Use of factors of diversity/utilization

· Conversion size mm² - awg

· Reference documents: IEC Standards, Reglamento Electrotécnico para Baja Tensión (REBT), Technical Application Guide, RD 1053/2014, (UE) 2016/364

The user of the application (designer / electrician) will be able to make calculations easily and quickly for the dimensioning of the electrical installation or on-site checks

IN NO CASE SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT OR INDIRECT DAMAGES AS A RESULT OF THE CORRECT OR INCORRECT USE OF THE APPLICATION