Remote Oscillography Capture Enhances Network Visibility

NOJA Power’s OSM Recloser is revolutionizing grid management by providing engineers with advanced data to address the complexities of distributed generation and improve network visibility.

Traditional distribution networks and their sensors were designed for a simpler time, managing only 50/60Hz systems. However, the rise of non-linear devices and power electronics has added a new layer of complexity to load flow and fault modeling. This is where intelligent network assets, like NOJA Power’s automatic circuit reclosers (ACR), step in, offering comprehensive insights into system behavior.

While conventional SCADA systems offer basic, low-sample-rate monitoring, they often miss critical details such as harmonics or power factor variations. With more distributed generation sources, engineers need localized, high-resolution data to detect issues early and prevent failures.

NOJA Power’s OSM Recloser addresses this need by capturing oscillography data—high-frequency current and voltage waveforms—remotely and transferring it back to the control center for analysis. The data is stored in COMTRADE format, allowing engineers to:

• Improve network modeling accuracy.

• Detect harmonic or power quality issues before equipment fails.

• Locate faults efficiently.

The oscillography capture can be triggered by either faults or control signals, with the data stored locally and accessible via secure FTP or remote access through NOJA Power’s Power Quality Software Suite (PQS). According to Neil O’Sullivan, Managing Director of NOJA Power, the company’s RC-10 and RC-15 recloser controllers serve as comprehensive power quality monitors in addition to their primary protection functions.

NOJA Power's mission is to develop cutting-edge solutions for the modern distribution network. Through collaborations with local utilities, the OSM Recloser platform is offering engineers a powerful tool to monitor and maintain grid reliability, addressing the challenges of today’s more dynamic power systems.

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