NOJA Power EcoLink Delivers Advanced Protection and Operational Efficiency in Cuiabá, MT Utility Trial

NOJA Power's single-phase recloser, the EcoLink, has been successfully installed in a trial application in Cuiabá, Mato Grosso (MT), Brazil.

The trial's goal is to achieve operational efficiency across both three-phase and single-phase networks, specifically targeting lines with very low fault currents where existing equipment has proven ineffective.

The local utility selected the EcoLink single-phase recloser based on its advanced technology, ease of system integration, and a strong, pre-existing trust in the NOJA Power brand, which has established a history of success and reliability with its three-phase OSM reclosers.

The EcoLink was mounted into an existent porcelain fuse holder on a single-phase line known for frequent overcurrent faults.

To address the specific line conditions, the device was configured with an ANSI 51 AC Time Overcurrent Relay protection function (OC1) configured in for 4 trips, an IEC I (Inverse) Time Current Curve, a pickup current of 30 A, and a time multiplier of 0.05 seconds, ensuring fast and reliable fault isolation.

The trial is a significant step toward solving the long-standing challenge of protecting lines that experience faults at low current levels. The utility expects the EcoLink to maintain operational efficiency on these lines, ensuring better service continuity for customers.

“This successful deployment in Cuiabá underscores the EcoLink's capability to deliver modern, reliable protection across single-phase networks, particularly where other equipment has struggled with very low fault currents,” said Tarcísio Santos, Service Manager for NOJA Power.
“We are confident this trial will demonstrate significant operational efficiency gains and further solidify the market's trust in NOJA Power solutions for distribution grid protection.”