Overview of the Latest Developments in Commercial Wireless Technologies of Distribution Automation

As electric utilities deploy more 'intelligent electronic device' (IED) controls throughout their power distribution systems, utility engineers and management are looking for reliable, secure and cost-effective wireless and communication and control solutions. May utilities are turning to the commercial digital cellular networks to build these solutions that supplement their 'wired' network. On the carrier side, digital cellular technologies have evolved rapidly, with expanding coverage, high data rates, and competitive pricing. This paper provides an update on the latest digital cellular technologies, with insights specific to electric distribution automation, and examples of projects in the field. Important elements of system security is also discussed