High-voltage network monitoring devices
In September 2011 we installed high-voltage network monitoring devices in Maltby, Rotherham and two sites on a network in Wooler, Northumberland. The Maltby site relates specifically to our PV reception network trial and will feature a high penetration of PV cells fed from one distribution substation, with approximately 25% of the customer premises being fitted with PV.
Both Wooler sites relate specifically to the rural reception network trial. Kelvatek Bidoyng monitoring smart fuses were mounted on interconnectable LV Distributors between two substations. This location was selected as part of our control LV network fed out a primary substation, and has a small but diverse mix of customers.
Nortech Envoy Substation Monitoring system
The PV cluster site at Maltby was interrupted for approximately three hours for the installation of a Nortech Envoy Substation Monitoring system. The system which was fitted before the PV cell installation began offers the functionality to view the impact on the network of the installed PV assets as they increase their penetration. Network impacts are being measured in respect of Volts, Amps, Power flow, Disaggregated Substation distributor loads, Power factor and Harmonic distortions.
Kelvatek Bidoyng monitoring smart fuses
For the rural trial site, Kelvatek Bidoyng monitoring smart fuses were mounted on interconnected LV Distributors between two substations in Wooler, Northumberland. These electrically interconnectable sites form part of the test cell for monitoring network conditions at the remote end of an extended distributed system. They will be equipped eventually with Enhanced Automatic Voltage Control and storage devices to assess network flexibility.
The images show the Kelvatek Bidoyng Smart Fuses and Data gateway hubs being installed at two discrete Wooler substations. These provide detailed data from the location on voltage and power supply quality.