Press Release December 2021

NOJA Power releases Voltage Dependent Overcurrent and Multistage Frequency and Voltage Protection for OSM Recloser System

NOJA Power OSM Recloser

International Electrical Engineering firm NOJA Power today confirms a suite of new protection and control features for their OSM Recloser with RC Series Control. Forming part of Firmware version 1.27, this release includes Voltage Dependent Overcurrent, Multistage Frequency and Voltage Protection, and Bluetooth Module support.

Press Release November, 2021

Techniques for Detecting Earth or Ground Faults on Delta Networks

NOJA Power OSM Recloser

Among the four main Medium Voltage distribution network earthing techniques, (Solidly/Effectively Earthed, Resistance Earthed, Unearthed and Compensated Neutral), delta networks offer significant challenges for detecting single line to ground faults.

Press Release June, 2021

NOJA Power RC20 Recloser Control Approved for Power Quality Monitoring at Distributed Generation Sites


NOJA Power’s flagship recloser controller, the RC20, has been approved by multiple Australian Distribution Network Service Providers as a Power Quality Monitoring device. This allows designers and operators of grid scale distributed generation plants and solar farms to use a NOJA Power OSM Recloser with RC20 control to meet their point of grid connection protection and monitoring obligations.

Press Release May 2021

How to Address Renewable Energy Connection with Integrated Switchgear

NOJA Power OSM Recloser

Grid scale solar power plants are good for the environment, and good for business. Not only do they displace the generation demand for fossil fuels, but once they’re built, it costs virtually nothing to generate revenue. As the cost of installations come down, so too do the payback periods, and so globally we see a proliferation of these installations.


Press Release March 2021

Detecting Earth Faults on Isolated and Resonant Earthed Networks

NOJA Power OSM Recloser

Isolated and resonant earthed electricity distribution networks present a challenge for detecting single line to ground faults. Despite this fault classification being the most common on overhead networks, it is also the most difficult to detect in these network topologies.

However, this is a solved problem.

Press Release December 2018

Bringing Safety, Security and Simplicity to the Global Electricity Distribution Network

ANSI Feature Diagram of the OSM Recloser System

ANSI Feature Diagram of the OSM Recloser System

Australian switchgear engineers NOJA Power are celebrating the achievement of 55,000 global installations of their OSM Recloser product in December 2018, and in commemoration have consolidated the functionality and versatility of this product that has made this achievement possible.