With the continuous advancement of smart grid technology, intelligent monitoring systems are playing an increasingly important role in preventing and addressing faults in voltage transformers. These modern intelligent monitoring systems can collect key parameters from voltage transformers in real time—such as partial discharge levels, temperature, and oil quality—and use data analysis algorithms to assess the health status of the equipment, enabling early fault warnings and precise l

Impact on Insulation PerformanceChanges in Insulating Material Properties: AIS voltage transformers rely on air as the insulating medium, and they also contain some solid insulating materials, such as insulating paper and insulating bushings. When the temperature rises, the migration and evaporation of moisture in solid insulating materials like insulating paper will accelerate, resulting in a decrease in the electrical strength of the insulating materials and an increased risk of insulation bre

Hey everyone! I’m Echo, and today we’re diving into the application and development of Air Insulated Switchgear (AIS) voltage transformers in 66kV outdoor substations. These devices play a crucial role in power systems, not just for measurement but also for protection and control. As technology advances, they continue to evolve to meet higher performance demands and stricter environmental standards. Let’s take a closer look!ApplicationsVoltage MeasurementOne of the primary task

Hey everyone, I'm Echo, a 10-year veteran in the power system industry. Today we’re going to talk about an important topic — the future development trends of current transformers (CTs) used in Air Insulated Switchgear (AIS).As technology advances and market demands evolve, these critical components are also undergoing continuous innovation. In this article, I’ll walk you through the key directions of future development based on my hands-on experience and industry observations.1

Hey everyone, I’m Echo, a 10-year veteran in the field of outdoor voltage transformers (VTs). Today, let’s talk about where the 35kV outdoor voltage transformer is heading in the future.1. Digitalization and Smart FeaturesWith the rise of IoT (Internet of Things), big data, and cloud computing, 35kV outdoor VTs are getting smarter.Imagine a voltage transformer that can monitor its own condition in real time, send data remotely, and even be controlled from your phone or computer. This

Hey everyone, I’m Echo, and I’ve been working with voltage transformers (VTs) for 12 years.From tagging along with my mentor doing insulation tests to now leading teams handling all kinds of high-voltage equipment issues — I’ve done a lot of oil refilling in my time. Especially when it comes to 110 kV voltage transformers, oil refill is a key part of daily maintenance. But let’s be honest — it's also one of the biggest time-wasters.A few days ago, a colleague

Hey everyone, I’m Echo, and I’ve been working with voltage transformers (VTs) for 12 years.From learning how to wire and do error tests under my mentor’s watchful eye, to now participating in all kinds of smart substation projects — I’ve seen the power industry evolve from traditional systems to fully digital ones. Especially in recent years, more and more 220 kV GIS systems are adopting electronic voltage transformers (EVTs), slowly replacing the old-school electro

I'm Echo, a 12-Year Veteran in the CT Industry, Talking About What's Coming NextHi everyone, I'm Echo, and I've been working in the current transformer (CT) industry for 12 years.From learning wiring and equipment debugging with my mentor to now leading a team tackling complex on-site issues, I've witnessed many technological advancements and industry changes. Especially with outdoor current transformers, there have been significant developments, but also much room for improvement.A few days ago

As a front - line power operation and maintenance worker, I deal with current transformers (CTs) daily. Having witnessed the popularization of new photoelectric CTs and tackled numerous faults, I’ve gained practical insights into their application and testing improvements. Below, I’ll share my on - site experience with new CTs in power systems, aiming for a balance between professionalism and practicality.1. Application of New CTs in Power Systems1.1 CTs in Power SystemsMost new CTs

By Echo, 12 Years in the Electrical IndustryHi everyone, I'm Echo, and I've been working in the electrical industry for 12 years.From early involvement in commissioning and maintenance of distribution rooms to later participation in electrical system design and equipment selection for large-scale projects, I’ve witnessed how voltage transformers have evolved — from traditional analog devices to intelligent, digital components.The other day, a new colleague from a power company asked