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NOJA Power Reclosers Used In Substation For Remote Control And Feeder Protection

Although pole-top reclosers are traditionally used to isolate sections of feeder when faults occur, they can also be used in substation applications.

One of NOJA Power's pacific island customers recently used three reclosers in a power station/substation environment. This was done primarily to gain SCADA control over the feeders.

In this particular case it would have been much too expensive to convert the ageing, manually operated switchgear located inside the power station to SCADA enable them. Instead, OSM reclosers were located immediately after these units. Protection was graded to ensure the reclosers operated before the power station breakers. A multi-dropped RS485 network is used to achieve remote control and indication for the central control centre.

 


FIJI Substation


FIJI Substation

The power station is located in a region where significant load growth is occurring as a result of increased tourism. New resorts are being built in the area and this is resulting in an increased demand for quality of supply.