iEngineering australia

Soil Resistivity Analysis and Earthing Design/Grounding Design: 

We can help you to measure the soil resistivity of site by using the four-pin arrangement (wenner or schlumberger method) and model the uniform, multilayer or multizone soil model as per the site specification. We can help you to design the Earthing system for Industrial plants, AC substations, Solar substations, Wind Substations and for all your facilities. We will help you to study the touch potential or touch voltage, step potential or step voltages and permissible touch voltages and step voltages by IEEE 80, IEC/TS 60479 – 1 and EN50522. 

2. LFI (Low Frequency Interference) and Split Factor Calculation: 

LFI analysis is the evaluation of the AC transmission lines nearer or adjacent to other metallic bodies. Typical recipients are other utilities such as metal pipelines, rail lines, Communication cables, metallic fence and buildings. Transmission lines crossing or parallel to another linear utilities may have induced voltage, induced current or capacitive conduction from the transmission lines to the pipelines or rail lines. We can help you to study the LFI effect of underground cable or overhead transmission line on the recipients. We can also help you to find the fault current distribution and split factor calculation. 

3. Cathodic Protection: 

Cathodic protection is only one of many methods to control the corrosion of buried or submerged metals and should be considered possibly in conjunction with other forms of corrosion control such as the application of protective coating.  

Cathodic protection uses a flow of direct current to interfere with the activity of the electrochemical cells responsible for corrosion. Corrosion is prevented by coupling the metal being protected with a more active metal when both are immersed in an electrolyte and connected with an external circuit. In this case, the entire surface of the metal being protected becomes a cathode, thus the term “cathodic protection”. 

We can help you to size the cathodic protection for your all metallic assets and prevent it from the corrosion 

4. Electric Field and Magnetic field calculations: 

EMFI is defined as Electromagnetic field Interference EMFI is the result of an electric or magnetic field acting on a device, causing it to malfunction. It is this interference that affects the proper functioning of a device. EMI is a broad term that covers all interference from all frequencies in the electromagnetic spectrum – DC, Quasi-DC, AC and RF. 

We can help you to calculate the electromagnetic field interference effect on your facilities. 

5. Lightning Protection Design:  

We can help you for the protection of structures from direct lightning strokes using the Rolling Sphere and the Eriksson methods. The Rolling Sphere Method is considered by standards and is (EN, NFPA, AS …). We will help you to calculate Surge impedance, Peak of the return stroke current, striking distance, Failure rate, Parts of the structure to be protected exposed to a direct lightning stroke, protected volume (calculated with the Rolling Sphere method), Collection area (calculated with the Eriksson method) and all results are available in numerical and graphical form.