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A generator transformer is a specialized power transformer that steps up the relatively low voltage produced by a generator

Transformer insulation is the single most critical factor determining the safety, reliability, and service life of any power or distribution transformer. It is the barrier that separates high-voltage energized parts, prevents electrical breakdown, and allows a transformer to perform its intended fun

This guide explains how a Delta-Star Transformer works, why the delta connection on the primary and star connection on the secondary are chosen, what voltage and current relationships govern its operation, and where it finds application across transmission, distribution, and industrial power systems.

An ONAN transformer relies entirely on the fundamental laws of physics — specifically, the buoyancy-driven circulation known as natural convection — to keep its core and windings within safe operating temperatures.

In simple terms, when a power transformer or distribution transformer operates under load, internal impedance causes a voltage drop across the windings. The smaller this drop, the better the voltage regulation.

In this guide, we explain how delta-wye transformer connections work, compare all four main three-phase configurations,
and provide a practical framework for selecting the right setup for your project.

A practical guide to grounding transformer types, working principles, applications, and selection criteria for power system engineers and procurement professionals.

This article presents the top 10 transformer manufacturers worldwide, covering their product lines, regional presence, key certifications, and market positioning. It also offers a practical framework for transformer manufacturer selection.

Smart transformers represent one of the most significant technological advances in power distribution since the introduction of the conventional electromagnetic transformer over a century ago. By integrating digital sensors, power electronics, communication networks, and analytics software into the transformer platform, smart transformers fundamentally change how electricity is managed, monitored, and delivered across modern smart grids.

In this guide, we break down the construction, performance characteristics, and ideal use cases for both core type transformer and shell type transformer designs, and provide a practical framework for transformer selection.