Electrotechnik

Electrotechnik AI-powered Electrical Power Systems Design Software

ELEK Power Software products include:
Cable Pro
Cable HV
SafeGrid Earthing
Cable Pulling
LineRate

Visit our website to Download Trial Software, watch videos, read technical information and publications

(ELEK, CableCALC, SafeGrid and LineRate are trademarks of Electrotechnik Pty Ltd)

07/08/2026

Buried cable installations are common in LV cable design, but applying correction factors for parallel circuits manually can be time-consuming and prone to errors.

With the Correction Wizard in Cable Pro Web BS 7671, engineers can quickly select the cable arrangement, installation method, and circuit spacing, and the software automatically applies the correct rating factors from the applicable tables.

Less manual lookup. Faster designs. Greater confidence in compliance.

Get the 14-day free trial of ELEK Cable Pro Web here:
AU/NZ - https://elek.com/electrical-software/cable-pro-web-as3008/
UK - https://elek.com/electrical-software/cable-pro-web-bs7671/
International - https://elek.com/electrical-software/cable-pro-web-iec60364/
US - https://elek.com/electrical-software/cable-pro-web-nec/

05/08/2026

A common challenge in cable design is demonstrating where a current rating actually comes from, not just the number, but the exact source in the governing standard.

Without traceability, engineers are left manually cross-referencing tables to verify results. This adds time, introduces the risk of mismatched assumptions, and makes it difficult to defend design decisions during reviews or regulatory submissions.

ELEK Cable Pro Web traces every current rating back to its source. The Details panel shows the exact table number and column from the governing standard for cable rating inputs, including installation conditions, conductor properties, and operating temperatures.

𝗧𝗵𝗶𝘀 𝗺𝗲𝗮𝗻𝘀:
✅ The specific table number and column from the governing standard are shown alongside every current rating.
✅ The source reference is included in exported calculation reports, supporting audit trails and regulatory submissions.

This leads to greater confidence in design outputs, faster design reviews, and a clear paper trail from each cable rating back to the governing standard.

Get the 14-day free trial of ELEK Cable Pro Web here:
AU/NZ - https://elek.com/electrical-software/cable-pro-web-as3008/
UK - https://elek.com/electrical-software/cable-pro-web-bs7671/
International - https://elek.com/electrical-software/cable-pro-web-iec60364/
US - https://elek.com/electrical-software/cable-pro-web-nec/

03/08/2026

The solar renewable energy industry is rapidly growing in both capacity and scope, leading to an ever-increasing need for accurate earthing system calculations.

A large part of an earthing grid is the support structures for the solar panels. These metallic frames significantly influence fault current dissipation, touch and step voltages, and overall grid performance. Accurately representing these structures is therefore essential for evaluating grid performance.

Traditional approximations may completely ignore these above-ground structures to simplify the model.

However, these approximations can lead to:
🔹 Inaccurate touch and step voltage results
🔹 Overly conservative designs and unnecessary copper costs
🔹 Missed interactions between support structures and the grounding grid
🔹 Reduced confidence in compliance studies

With ELEK SafeGrid Earthing Software, solar panel support structures can be modelled directly as above-ground conductors/segments within the earthing system model. This gives engineers a far more realistic representation of the entire solar farm earthing grid.

𝗞𝗲𝘆 𝗯𝗲𝗻𝗲𝗳𝗶𝘁𝘀 𝗶𝗻𝗰𝗹𝘂𝗱𝗲:
⚡ Accurate modelling of interconnected solar support structures
⚡ Better prediction of fault current paths and voltage gradients
⚡ Improved safety assessment for personnel and equipment
⚡ Optimised earthing designs that can reduce material costs

As renewable energy projects continue to scale, detailed and realistic earthing analysis is becoming increasingly important. Software that can properly account for real-world infrastructure helps engineers design safer, more cost-effective systems with greater confidence.

Get the 14-day free trial of ELEK SafeGrid Earthing by visiting this link:
https://elek.com/electrical-software/safegrid-earthing/

31/07/2026

Touch voltage contour plots can become difficult to interpret when large amounts of data are displayed simultaneously, making it harder to identify areas that exceed safety limits.

With Exceeding Limit View in ELEK SafeGrid, engineers can instantly highlight only the regions that exceed the selected touch voltage safety criteria, eliminating unnecessary contour plot clutter and simplifying analysis.

Faster identification of safety limit violations. Clearer visualisation. Greater confidence in touch voltage safety assessments.

Get the 14-day free trial of ELEK SafeGrid Earthing by visiting this link:
https://elek.com/electrical-software/safegrid-earthing/

29/07/2026

Earthing calculations for brownfield facilities can be challenging due to incomplete records, undocumented modifications, ageing conductors, and changing site conditions. These factors affect both the earthing grid resistance and the actual fault current injected into the grid, making it essential to accurately determine the injected current when reassessing an existing earthing system.

Relying solely on the theoretical design can lead to uncertainty, especially if field measurements do not reflect the same parameters.

With ELEK SafeGrid Earthing Software, engineers can improve the accuracy of reassessment studies by incorporating actual site-measured earthing grid resistance.
⚡ Input measured earth grid values from site testing directly into the Fault Current Module.
📊 Calculate a more realistic fault current distribution based on the actual injected fault current.
🎯 Improve the accuracy of earthing and touch/step voltage assessments.
🔍 Reduce uncertainty by aligning calculations with measured field conditions.

By combining field measurements with advanced fault-current and earthing analysis, the software helps engineers develop more representative models of existing installations, increasing confidence in compliance and safety assessments.

Get the 14-day free trial of ELEK SafeGrid Earthing by visiting this link:
https://elek.com/electrical-software/safegrid-earthing/

27/07/2026

Utility-scale solar farms use arrays of parallel DC collector circuits to connect strings or combiner boxes to central inverters. The number of circuits scales with installation size, often reaching dozens of side-by-side buried circuits running over long distances.

Operating simultaneously, these circuits generate significant mutual heating. Each circuit's rating depends not only on its own losses but also on heat from the surrounding circuits. As the array grows, modelling that thermal environment becomes both more important and more difficult.

Oversimplified approximations can overestimate ampacity, leading to excessive conductor temperatures and reduced cable life. Conservative assumptions, on the other hand, can inflate project costs, resulting in a substantial financial impact.

ELEK Cable High Voltage software performs IEC 60287 cable rating calculations for large arrays of DC circuits, automatically accounting for the mutual heating effects between adjacent circuits to produce an accurate thermal model.
✅ Models large arrays of parallel PV DC circuits
✅ Automatically accounts for mutual heating between circuits
✅ Performs IEC 60287-compliant cable rating calculations
✅ Produces accurate thermal models for complex buried installations

Whether you're designing a new solar farm or optimising an existing installation, the software helps engineers confidently assess cable ampacity for large-scale PV systems while reducing design risk and unnecessary material costs.

Get ELEK Cable High Voltage with a 14-day free trial by visiting this link:
https://elek.com/electrical-software/elek-cable-high-voltage/

24/07/2026

Modelling complex cable-pulling routes with multiple sections can be tedious and time-consuming.

With ELEK Cable Pulling software, engineers can import DWG/DXF route drawings directly into the software, automatically streamlining the modelling of straight runs, bends, inclines, and declines.

Reduce manual input, minimise errors, and complete IEEE 1185 cable-pulling studies faster and with greater accuracy.

Get ELEK Cable Pulling by visiting this link:
https://elek.com/electrical-software/elek-cable-pulling/

22/07/2026

The trefoil cable arrangement is one of the most common configurations for a three-phase, single-core cable system. Its compact form minimises magnetic field effects, making it a popular design choice.

Engineers often focus on the continuous rating of these systems, but the emergency rating is just as important. Loading varies and, in some cases, exceeds the continuous rating. It is therefore important to understand how much additional load a cable can carry, and for how long, before reaching its temperature limit.

The challenge is that IEC 60853 emergency rating calculations are far from straightforward. They involve transient thermal analysis, thermal time constants, pre-emergency loading conditions, and cable thermal properties. Performing these calculations manually or in spreadsheets can be:
• Time-consuming
• Error-prone
• Difficult to verify
• Repetitive when evaluating multiple scenarios

ELEK Cable High Voltage simplifies the entire workflow. Simply:
• • Select the 𝗧𝗿𝗲𝗳𝗼𝗶𝗹 configuration in the 𝗜𝗻 𝗔𝗶𝗿 installation module.
• Import the installation directly into the 𝗧𝗿𝗮𝗻𝘀𝗶𝗲𝗻𝘁 𝗥𝗮𝘁𝗶𝗻𝗴𝘀 module.

With the Transient Ratings module seamlessly integrated into the software, emergency rating calculations for in-air trefoil circuits are easily accessible, saving engineering time and improving confidence in your results.

Get ELEK Cable High Voltage with a 14-day free trial by visiting this link:
https://elek.com/electrical-software/elek-cable-high-voltage/

20/07/2026

An undersized earth conductor increases fault-loop impedance to the point where the protective device may not trip within the required time. That is both a safety failure and a compliance failure under AS/NZS 3000:2018.

Getting the size right means verifying short-circuit withstand capacity, calculating fault-loop impedance, and cross-referencing Table 5.1. The methodology also changes depending on whether the protective device settings are known. Performing these checks manually across multiple clauses is time-consuming and leaves room for error.

Cable Pro Web automates this process. When protective device settings are known, it sizes the earth conductor for short-circuit performance (Section 5.3.3.1.3) and fault-loop impedance (Section 5.7). When device settings are unknown, it sizes the earth conductor using Table 5.1 relative to the active conductor, then validates the result against the short-circuit withstand requirements.

✅ Sizes the earth conductor based on active conductor size and protective device configuration.
✅ Validates compliance with short-circuit withstand and fault-loop impedance requirements.
✅ Applies the correct methodology for known and unknown protective device settings.
✅ Compliant with AS/NZS 3000:2018 Sections 5.1, 5.3, and 5.7.

No manual clause cross-referencing, just a verified earth conductor size that meets the standard.

Get the 14-day free trial of ELEK Cable Pro Web here:
AU/NZ - https://elek.com/electrical-software/cable-pro-web-as3008/
UK - https://elek.com/electrical-software/cable-pro-web-bs7671/
International - https://elek.com/electrical-software/cable-pro-web-iec60364/
US - https://elek.com/electrical-software/cable-pro-web-nec/

17/07/2026

For in-air cable installations, solar radiation can significantly increase cable temperature and reduce ampacity. Ignoring this additional heating can lead to overstated current ratings, higher operating temperatures, and reduced cable life.

ELEK Cable High Voltage incorporates solar radiation into cable rating studies using IEC 60287-compliant methods, with automatic solar intensity calculations based on location, date, and installation angle.

Get ELEK Cable High Voltage with a 14-day free trial by visiting this link:
https://elek.com/electrical-software/elek-cable-high-voltage/

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