Saudi Arabia’s power transmission sector continues to expand rapidly, driven by large-scale PV and wind generation projects and the need for robust 380kV Bulk Supply Points (BSPs). In 2025, a total of 20 major 380kV BSP projects were announced and opened, offering a clear picture of how EPC contracts are distributed among leading contractors. Some…
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Auxiliary Transformer Sizing (Substation Primary Design Course)
In this post, we wil explain auxiliary transformer sizing, as per SEC/National Grid standards. Auxiliary transformers play a critical but often underestimated role in substation design. While power transformers transmit energy to the grid, auxiliary transformers ensure the substation itself stays alive—supplying power to protection, control, HVAC, lighting, motors, communication systems, and essential services.This is…
Electrical Safety MCQs: Practice Quiz for Engineers
Electrical safety is not just a guideline—it’s a lifesaver. Whether you’re a seasoned engineer, a technician, or a student, a solid understanding of safety principles is non-negotiable. One wrong move can have serious consequences. Think you know your stuff? We’ve created a quick 10-question quiz to test your knowledge on critical electrical safety topics. Challenge…
Data Structures in C++
Learning data structures in C++ is one of the most important steps for anyone looking to become a skilled programmer or software engineer. Data structures provide systematic ways to store and organize data, making programs faster and more efficient. With C++, you can implement data structures in two powerful ways: by building them from scratch…
380kV Gas-Insulated Switchgear (GIS)
In this post we will provide you an overview of 380kV Gas-Insulated Switchgear (GIS). This is our 3rd post that is part of Extra High Voltage EHV Substation Design & 380kV Substation Design. If you are new on our website it is recommended to read first the below Posts What is Switchgear? Switchgear is a general term…
380kV Gantries & Gantry Equipment
380kV Gantries & Gantry Equipment is our first post that is a part of Substation Layout Drawing & Explanation each equipment in a 380kV BSP. Gantries are the tall steel structures at the extreme ends of the yard that serve as termination points for overhead transmission lines (OHTLs) entering the substation at 380kV. In this…
Inside a 380kV BSP: Overall Layout Drawing Explained
In today’s rapidly growing power networks, Bulk Supply Points (BSPs) play a vital role in ensuring reliable electricity transmission and distribution. A BSP is essentially the bridge between high-voltage transmission lines (380kV in Saudi Arabia) and the sub-transmission network (132kV) that feeds urban centers and industrial zones. While single-line diagrams (SLDs) show the electrical connections,…
Top Excel Functions Every Engineer Should Master
Excel is an indispensable tool for engineers, offering powerful functions to simplify complex calculations, analyze data, and optimize workflows. In this Post, we’ll explore the top Excel functions every engineer should master to enhance productivity and tackle technical challenges with ease. COUNTIFS The COUNTIFS function in Excel is used to count the number of rows that meet multiple…
SEC invited Bids for Synchronous Condenser Plants Phase II
SEC invited Bids for Synchronous Condenser Plants Phase II in KSA. Theses are the first of their kind in Kingdom, as Synchronous Condenser Plants were never installed before in the Kingdom. These projects involve the development of a cutting-edge synchronous condenser plants. The work scope includes the design, manufacturing, and installation of a fully operational…
Leading OHTL Contractors in KSA
Leading OHTL Contractors in KSA is a special post for Electrical, Civil, Mechanical, QC/QA, Computer, Telecom and Safety Engineers as well as for IT, Finance and management related people. We are providing you a list of Top and leading OHTL contractors in KSA with their official website, apply links along with the new 380kV or…