Thank you for your interest in this Software.

Introduction

Being in the Electrical Trade I always thought it might be a good idea if I could determine Cable sizes with a click of a mouse. This would reduce the thumbing through the IEE regulation and calculating the volt drop etc. The software I have developed does away with some of these tedious but important tasks. However it should only be used as a guide and any results should be treated with respect to the installation in hand. The calculations are based on information taken from the latest IEE regulations 16th Edition. The results are given for cables in Reference Method 11 or Method 13 but do not include for cables being installed in Hazards areas or bunching in Trucking etc.. I may include this in newer versions. All the cable selections are for 3 or 4 core SWA Xlpe (cable with thermosetting installations).

Electric Motors

The simulation pages on this web site is not the real software but only a demonstration of how the software works. The lay out is similar although certain other details have been omitted. i.e. "Print Out" details and "File saving". The demonstration has been fixed for one type of Three Phase AC motor direct start at 45 KW. The Software does include calculation for Three Phase Soft start and various types of single phase motors. DC motors are not covered in the software. Fuse Ratings have been recommended from various suggested literature on the size of motor and type of starting.

Kilowatt Load

Not only will the software calculate for Electric Motors but will also work with Kilowatt Loads. During this calculation a Diversity Factor can be included in the calculation. Cable sizes for this have been established from the current calculated and the IEE Regulations 16th Edition, Method 11 and 13. Fuse Selection has been determined by the cable selection and its maximum current capacity for that cable.

Total Kilowatt Loads

I have also included in the software for multiple installation work. This adds up the Total KVA Load of various Machines and determines Total Current load capacity, again with a diversity factor included if required. Suggested cables size is given and a Fuse.

Voltage Drop

The Calculated voltage drop is recorded and checked to see if it is within the permitted tolerances for supply and motors. A warning message is displayed with a choice of either increasing the cable size or reducing the cable length. This is unfortunately not in the simulation but is a main feature in the full software program.

Starting Current

Starting current is calculated depending on the type of motor and its starting method. Fuse selection is determined to suit the conditions.

Software Simulation

To try out the simulation clicking on the "Start" icon will enter 45 in the "Motor Kilowatt" box and include "Motor Efficiency" "Power Factor" and a "Cable length" of 10 metres. Line Voltage is 415 for this simulation but the software will except any voltage. The "Kilowatt load" and "Diversity" are dimmed out as they would not be active for this calculation. Clicking the "Start" icon again fills in the remaining results. The "Clear" icon will reset the page to zero, "Exit" will return to the "Main Menu" and "Help" returns you to this Page.