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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10 mins read
The calculation of submarine cable current ratings is different from land cables due to their complex construction and installation conditions.
10 mins read
Understand how software simulations enhance grid impedance tests, improving accuracy and efficiency in earthing system design and performance evaluation.
Waveform cables are commonly used in the UK for low-voltage power networks. The term waveform refers to the way the neutral/earth wires are laid around the cores/bedding. Using this configuration enables the neutral/earth wires to be opened so a connection can be made to the conductors anywhere along its length.
High voltage cable sheath induced voltages and currents theory is explained, with equations, bonding strategies and case study for a safe cable design.
17 mins read
Comprehensive analysis of field inversion, IEC 60287 Standards, finite element modelling, and case studies to optimise HVDC cable ampacity and insulation design.
3 mins read
Miniature Circuit Breakers (MCBs) protect against overcurrent in electrical circuits. MCBs are categorised based on their tripping characteristics, represented by different device curves such as Z, B, C, K, and D. This article offers guidance on selecting the right type for your application.
10 mins read
This article analyses the magnetic fields produced by electrical power cables installed in various configurations under varying conditions in the context of a health and safety-related issue. A software program has been used for calculating the results based on the Biot-Savart law. Techniques for the mitigation of magnetic fields are also presented.
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.
8 mins read
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.
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