Breaking into the electrical engineering field requires not only strong academic knowledge but also practical awareness of how systems work in real projects. Whether you are preparing for a substation, OHTL, UGC, or utility-based role in Saudi Arabia and the Gulf, these 25 commonly asked technical interview questions will help you sharpen your fundamentals. Q1….
Category: Information for Engineers
Feeder Protection Signaling
High-voltage power systems like 380kV transmission lines are the backbone of modern grids. They carry electricity over long distances, and any fault (like a short circuit or flashover) the system must detect it instantly and isolate it to protect equipment and keep the grid stable. That’s where feeder protection signaling comes in. In this post,…
The Future of Electrical Engineering: Trends Shaping the Next Decade
Electrical engineering is entering its most transformative era in decades. While the last few decades were dominated by advancements in software, IT, and telecommunications, the coming years will be defined by energy innovation. As the global demand for reliable, sustainable, and intelligent power systems accelerates, electrical engineers will be at the heart of this transition….
TDP Secures 380kV MAWQAQ PV BSP Project in Saudi Arabia (#9057)
TDP Secures 380kV MAWQAQ PV BSP Project in Saudi Arabia (#9057). Earlier in April 2025, TDP submited lowest Bid for this BSP. MAWQAQ PV BSP #9057 is Located in Hail Area of COA. TDP submits lowest Bid of 591.9M SAR. The Client is SEC & the project consists of CONSTRUCTION OF NEW MAWQAQ PV BSP #9057.The Project…
Role of Synchronous Condensers in Modern Power Systems (2025)
As power systems around the world transition to renewable energy sources, grid stability has become one of the biggest challenges. Traditional generators provided inertia, reactive power support, and fault current contribution. With renewables like solar PV and wind (which use power electronics), these services are reduced. That’s where synchronous condensers come into play—an old technology…
SEC Standards Update: New vs Old
Saudi Electricity Company (SEC) has issued new standards that mayl soon replace the old ones. These updated codes are essential for engineers, consultants, and contractors working on substations, OHTL (Overhead Transmission Lines), and power system projects in Saudi Arabia. Key Points to Remember: Our Most Read Posts In the old SEC standards, the first letter…
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,…
Power Transformer Testing Overview
In this post we present you Power Transformer Testing Overview as per IS:2026 (Part I). Power transformers are critical components in the electrical power system, and their reliability is ensured through rigorous testing as specified in IS:2026 (Part I) – Power Transformers: General Requirements. These tests are categorized into Type Tests, Routine Tests, and Special…


