The Importance of Routine Fluid Analysis for Transformers
Insulating fluid is the first place a developing problem with a transformer shows up. As utilities work to stretch aging transformer fleets further while managing tighter budgets, routine fluid analysis has become one of the simplest, most reliable ways to catch trouble early and keep equipment in service longer. At TJ|H2b, insulating fluid analysis is […]
Transformer Testing Decision Guide: When, Why & How to Test Insulating Fluid
Do you need transformer testing right now, and if so, which test? This guide is designed to answer the signs, the tests that match, where to get transformer testing, and what to do with the results. Do Transformer Testing if Any of These Signs Apply to You If any of the following is true, you […]
The Power of Dissolved Gas Analysis: DGA Testing
Long before a fault becomes visible in a transformer, it leaves a trace in the insulating oil. Things like dissolved gases are produced by thermal and electrical stress inside the unit. Catching those traces early is one of the most cost-effective ways to avoid an unplanned outage. That’s the job of Dissolved Gas Analysis (DGA) […]
Why Laboratory Testing Remains Irreplaceable in the Smart Grid Era
The modern power grid is more robust than at any point in history. Utilities are deploying IoT sensors, online dissolved gas monitors, SCADA integrations, and AI-driven analytics platforms at an accelerating pace. This is good news for grid reliability. But a misconception is gaining momentum in the industry: that continuous digital monitoring is making laboratory […]
Common Misconceptions About Transformer Testing
Despite decades of standardized testing protocols and robust diagnostic science, a surprising number of misconceptions persist among plant engineers, maintenance teams, and asset managers regarding industrial transformer testing. Unfortunately, these myths can lead to under-testing, misinterpreted results, deferred maintenance, and, in the worst cases, catastrophic and preventable failures. At TJ|H2b Analytical Services, we have spent […]
TechCon® North America 2026: A Hub for Innovation in The Utility Industry
The TechCon® North America conference continues to serve as a central hub for knowledge sharing, technical advancement, and collaboration across the high-voltage industry. Each year, the conference brings together utility professionals, engineers, asset managers, and solution providers to address the evolving challenges shaping today’s electrical infrastructure. The event features a variety of educational opportunities, such […]
Understanding High Voltage Circuit Breakers
A high voltage circuit breaker is a switching device used in power systems to interrupt the flow of electricity when abnormal conditions occur, such as short circuits, overloads, or ground faults. By rapidly opening the circuit, the breaker isolates the faulty section of the network, protecting equipment, preventing fires, and maintaining system stability. To safely […]
Transformer Insulation Innovation: Why Advanced Materials Still Depend on Oil Diagnostics
As utilities face increasing grid load demands, aging infrastructure, and the rapid expansion of renewable energy, transformer reliability has become more important than ever. One of the most significant factors affecting transformer reliability is insulation performance. Traditional transformer insulation systems (typically composed of cellulose paper and insulating oil) have served the industry for decades. However, […]
The Future of Transformer Diagnostics: Learn More at TechCon® North America
Utilities are generating more equipment and grid data than ever before. As utilities balance aging infrastructure, electrification growth, regulatory scrutiny, and extreme weather risk, transformer testing has moved from the lab bench to the boardroom. Dissolved gas data, moisture trends, insulation aging metrics, and failure probability modeling now influence capital budgets, resilience investments, and grid […]
How to Correctly Take an Oil Sample from a Transformer
Modern high-voltage equipment rarely fails without warning. Long before a transformer, regulator, load tap changer (LTC), or breaker experiences a catastrophic event, microscopic indicators begin developing inside the insulating fluid: Dissolved gases form, moisture increases, acids develop, and metal particles circulate. But none of that data matters if the oil sample is compromised. Improper sampling […]
Factors Affecting Dielectric Breakdown: The Science Behind Insulation Failure
In high-voltage equipment, insulation fluid is expected to do one essential job: prevent electrical current from moving where it shouldn’t. When that insulating material can no longer withstand electrical stress, it undergoes dielectric breakdown, transitioning abruptly from an insulator to a conductor. For transformers, circuit breakers, and gas-insulated systems, understanding the factors that drive dielectric […]
Common Problems with Circuit Breakers in Utility Applications
Circuit breakers are among the most critical components in utility electrical systems — they safeguard assets, keep the grid stable, and protect personnel from hazards. Yet despite their importance, failures and malfunctions still occur frequently. This article explores common problems with circuit breakers in utility applications, explains why they matter, and highlights how condition-based diagnostics […]