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Power Systems Technical Articles

Our experts continuously work on power systems problems, and we share solutions with Practical Reference Articles.

The main topics are earthing system modeling, power cable ratings, HV/LV electrical design, protective device coordination, and arc flash studies. We cover IEC and IEEE standards.

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Low Voltage Design
Earthing Design
High Voltage Cable Design
Arc Flash Studies
ELEK vs Competitors
Electrical Software
1653971060513 1170x585 - Popular
3 mins read

Soil Frequency Dependency During Lightning Strikes

The effects of lightning strikes on earthing or protection systems designed to IEC 62305 can be modelled using an equivalent single frequency from 25kHz up to 1MHz which gives similar results to a time-domain approach. This article provides the frequency and current values to be used for modelling lightning.
Screenshot of high voltage cable rating software
6 mins read

CYMCAP vs. ELEK Cable HV Software

The features of ELEK Cable HV software and CYMCAP software are compared in detail.
Buried cables in group ELEK Software 1170x585 - Popular
4 mins read

Cable Current Rating Derating Factors Explained

Derating factors are applied to the cable current rating ensuring that cable operating temperature limits are not exceeded. Derating factors are derived to match the specific cable installation conditions.
Comparison Of Safegrid with XGSLab and CDEGS - Popular
2 mins read

Comparison of SafeGrid with XGSLab and CDEGS Results

We have benchmarked our SafeGrid Earthing Software results for a 60 x 60 m grid against well-known software XGSLab™ and CDEGS™. We show that the results for grid resistance in multilayer soils up to 5 layers are virtually identical.
Screenshot of cable sizing calculator software named Cable Pro Web
4 mins read

JCalc vs Cable Pro Web: A Complete Comparison

Cable Pro Web is cheaper with more features than JCalc (which is not free). Choose cable sizing software that scales with your business. This article honestly compares prices, features and ease of use.
Motors in a factory setting_ELEK Software
1 min read

Maximum Demand Tables

Reference tables for diversity factors and energy demand from Wiring Rules AS/NZ 3000 for domestic and non-domestic installations.
Earthing Design Software Screenshot
11 mins read

7 Best Earthing and Grounding Design Software Packages

We compare the best and latest earthing and grounding system design software including SafeGrid, CDEGS, XGSLab, ETAP and more based on technical features and compares price.
Arc Flash Draw Out Large Circuit Breaker ELEK Software small 1 1170x585 - Popular
8 mins read

Understanding Arc Flash Hazards

Electrical equipment operating at or above 50 V AC or 120 V DC which will not put into a deenergised state during work must be evaluated for arc flash and shock protection. Three types of activities of workers carry the highest risk of arc flash. Three main factors determine the severity of an arc flash injury.
Vehicle charging 1 1170x585 - Popular
3 mins read

Automatic Maximum Demand Calculations

The new maximum demand module provides fast and accurate calculations for loads in accordance with rules from the Standards and for custom loads. An ingenious automatic phase balancing algorithm ensures maximum demand and phase imbalance are both minimised.
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