Technical Blog
Engineering guides and selection know-how — understand the standards, compare equipment types, and specify the right product for your project.
SwitchgearMedium Voltage Switchgear Design: A Technical Overview
A technical overview of medium voltage switchgear design — the key components and their functions, the governing standards, common configurations and single-line layouts, how to read an MV switchgear diagram, applications, a neutral look at leading brands, and maintenance essentials.
SwitchgearSwitchgear vs Ring Main Unit (RMU): Key Differences and Applications
Switchgear and ring main units both control medium voltage circuits, but they solve different problems. This guide explains what each is, the key differences, an 11 kV RMU diagram and its components, and how to choose the right equipment for your project.
TransformersDistribution Transformer Basics: A Technical Guide for Beginners and Professionals
Distribution transformer basics explained — how they work, their key components, how to read the nameplate, typical 11 kV / 433 V specifications, the common types, and how to choose a manufacturer and maintain the unit.
SwitchgearThe Ultimate Guide to Low Voltage Switchgear Components
A complete guide to low voltage switchgear components — what goes inside an LV panel, how to read an LV switchgear diagram and datasheet, applications and benefits, how to choose a manufacturer, and maintenance and safety essentials.
SwitchgearComprehensive Guide to Air Insulated Switchgear (AIS): Principles, Components, and Applications
A complete guide to air insulated switchgear (AIS) — what it is, its key components, the working principle, how it compares with gas insulated switchgear (GIS), where AIS substations are used, the advantages and limitations, and maintenance and safety essentials.
TransformersWhat Is an ONAN Transformer? Meaning, Cooling System, and Ratings Explained
ONAN explained — its full form and meaning, how the oil-natural air-natural cooling system works, why oil is used as both insulant and coolant, typical ratings, the trade-offs versus ONAF / OFAF / ODAF cooling, and where ONAN transformers fit in Middle East distribution networks.
TransformersHow to Select a Power Transformer: A Technical Guide for 11kV, 33kV & Distribution Systems
How power transformers differ from distribution transformers, what 11kV, 33kV and 132kV ratings mean, how an 11kV transformer actually works, the main core types, and the factors that drive a correct, compliant transformer selection for substation and industrial use.
SwitchgearLow Voltage Switchgear Design Guide: Best Practices for LV Switchboard Design
A practical guide to low voltage switchgear and LV switchboard design — the key considerations, a step-by-step design workflow, the common mistakes to avoid, and how IEC 61439 compliance is verified.
SwitchgearHow to Select Metal-Clad Switchgear: A Technical Guide
Metal-clad switchgear is the most segregated form of metal-enclosed medium-voltage switchgear — defined by drawout breakers, grounded metal compartments, and automatic shutters. This guide explains what metal-clad means, how it differs from metal-enclosed, and the specifications to check when selecting it.