However, manual thermography inspections limit the practicality and scalability of applying CBM. There is significant cost in performing the inspections and the data gathered tends to be imprecise.
Manual inspections are also prone to error and the results are highly variable depending on the grid’s load and weather conditions. Finally, even if good data is collected, there is a shortage of effective tools and resources to analyze the data. To fully realize CBM, sites need continuous remote monitoring and diagnostics (M&D) of critical substation connections and assets, such as transformers, to provide automated early detection of developing failures.
Since the equipment in the majority of electrical power substations is old and near its end of useful life, the potential for faults or the complete failure of these devices due to their age increases and as the amount of required energy usage increases.
In an attempt to prevent this, thermal imaging systems (such as ThermalSpection 724) are deployed in critical locations throughout the electrical power distribution systems.
Data is gathered by the system and sent to a centralized remote monitoring and diagnostic center and reviewed by subject matter experts (SMEs). The end result is true CBM with a decrease in reactive or preventative maintenance activity and the procurement of replacement devices.
What Assets to Monitor?
Each electric utility sets priorities based on previous issues observed and operational conditions specific to grid operations.
The highest priority component to monitor in a substation is typically the power transformer followed by circuit breakers. Utilities can monitor specific points of interest by using thermal imaging software and Regions of Interest (ROI). These ROI values are stored and sent to the data historian for analysis.
In addition to the power transformers, utilities typically monitor isolators (R, Y, B phase), capacitors banks, current transformers, current voltage transformers, distribution transformers, bus bars are other assets. On the power transformers utilities also monitored the bushings, the tank temperatures and the cooling radiators and fans.
Why ThermalSpection 724 from LumaSense?
This LumaSense solution offers a remote, automated, and continuous thermal and visual imaging solution for substation and industrial site monitoring.
Monitoring solutions often lack flexibility and the ability to properly monitor different areas and items.
Our TS724 solution is fully customizable with the number of cameras and pyrometers installed to monitor assets.
Remote & Continuous
Manual thermal imaging inspections are unreliable, costly, and unable to offer continuous monitoring.
Our TS724 solution uses continuous, online remote monitoring to put the collected data in the hands of experts at monitoring and diagnostic centers – saving resources and enabling utilities to implement condition-based maintenance.
Manual inspections provide limited data to analyze and cannot fully automate detection of anomalies and problems.
With thermal imaging software, utilities can analyze data and generate alerts when thermal changes in temperature occur or when temperatures are significantly different from similar components.
Most monitoring technologies are cumbersome to install, maintain and service, leading to a poor overall user experience.
Our TS724 solution offers versatile monitoring configurations and is easy to install and maintain since monitoring assets are non-contact.