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Substation Transformers Explained

Substation Transformers Explained

Learn about the different types of transformers in high-voltage substations by exploring their technical workings and the mathematical evaluations…


Introduction to TLVR Structured Transformer-Based Voltage Regulators

Introduction to TLVR Structured Transformer-Based Voltage Regulators

This article introduces transformer-based voltage regulators with a trans-inductor voltage regulator structure designed to respond extremely…


Examining the Causes of Transformer Insulation Failure

Examining the Causes of Transformer Insulation Failure

Learn the reasons behind insulation-related transformer failures.


Current Transformers: Operation, Types, and Polarity Considerations

Current Transformers: Operation, Types, and Polarity Considerations

Learn about current transformers and their essential role in transforming large currents into smaller ones, including winding ratios, types, and…


Winding Connections and Applications of Buck-Boost Transformers

Winding Connections and Applications of Buck-Boost Transformers

This article will teach you about buck-boost transformers, winding connections, and their applications. The primary focus is on boosting (raising)…


Sizing Transformers for Single- and Three-Phase Loads

Sizing Transformers for Single- and Three-Phase Loads

This article spotlights the principles of sizing wye and delta-connected transformers to efficiently handle single- and three-phase loads.


Using Open Deltas Strategically To Increase Transformer Capacity

Using Open Deltas Strategically To Increase Transformer Capacity

Open delta transformers allow delta-connected transformers to supply three-phase loads with two-phase windings while maintaining phase voltages.…


Pros and Cons: Three-Phase Transformer Connections

Pros and Cons: Three-Phase Transformer Connections

This article examines three-phase transformer connections and their advantages and disadvantages, which are crucial for effectively matching…


Making Sense of the Fundamentals and Configurations of 3-Phase Transformers

Making Sense of the Fundamentals and Configurations of 3-Phase Transformers

This article teaches three-phase transformers' fundamental principles and configurations, including their construction with three primary and…


Using Probability Models to Understand Electrical System Reliability Engineering

Using Probability Models to Understand Electrical System Reliability Engineering

Reliability engineering in electrical systems is essential to ensuring system efficiency. This article explores how probability models are used in…


NEC Basics: Solidly Grounded, Service-Supplied AC Systems Above 1 kV

NEC Basics: Solidly Grounded, Service-Supplied AC Systems Above 1 kV

Learn about single-point and multi-grounded neutrals and service-supplied AC systems above 1 kV.


Exploring Transformers With Dual-Voltage Ratings

Exploring Transformers With Dual-Voltage Ratings

This article explains transformers with dual-voltage ratings and explores their configurations and how the windings can be connected in series or…


Understanding Transformer Voltage Adjustment Taps

Understanding Transformer Voltage Adjustment Taps

This article explains transformer voltage adjustment taps and their crucial role in maintaining secondary voltage despite fluctuations in the supply.


NEC Basics: Grounding and Bonding DC Systems Supplying Premises

NEC Basics: Grounding and Bonding DC Systems Supplying Premises

Learn whether or not you should connect a direct current power supply to the ground.


Identifying Transformer Leads

Identifying Transformer Leads

This article will help you identify transformer leads by explaining how to determine H or X leads and perform polarity tests to establish lead…


Transformer Maintenance: Planning for Failure

Transformer Maintenance: Planning for Failure

This article examines transformer maintenance, including simple checks involving temperature and sound that indicate potential issues, maintenance…


Calculating Transformer Voltage

Calculating Transformer Voltage

This article presents three fundamental methods for calculating transformer voltages using the voltage-to-turns formula, turns ratios, and volts…


Addressing Transformer Supply Chain Challenges for a Resilient Grid

Addressing Transformer Supply Chain Challenges for a Resilient Grid

An analysis by the Government Accountability Office sheds light on the challenges facing the transformer supply chain and the role the U.S.…


tech insights Aug 25, 2023 by Jake Hertz
Tuned Coupled Coils Explained

Tuned Coupled Coils Explained

Learn about tuned coupled coils and their key characteristics, including coupled impedance, measuring the impact of one coil's impedance on…


Visualizing Transformer Behavior: Drawing Phasor Diagrams and Equivalent Circuits

Visualizing Transformer Behavior: Drawing Phasor Diagrams and Equivalent Circuits

In this article, you’ll learn how to draw phasor diagrams and equivalent circuits for transformers under load and no-load conditions.