PPL Electric Utilities Automates Line Reclosers Using Telemetric's Intelligent
Wireless Remote Telemetry Modules.
Boise, ID – January 17, 2007 –
Telemetric Corporation, a leader in end-to-end wireless
communication solutions for the electric utility industry, announced today that PPL Electric Utilities has
deployed a system for monitoring and control of distribution reclosers based on Telemetric’s intelligent
wireless Remote Telemetry Modules (RTMs) and supporting software applications. This end-end
solution allows PPL Electric Utilities operations personnel to receive near real time status information
from mid-point and tie-point reclosers installed on distribution feeders. In addition, Telemetric worked
with PPL Electric Utilities operating center personnel to provide integration of the recloser status/control
functions into PPL Electric Utilities’ operations center (SCADA).
PPL Electric Utilities has utilized electronic controlled reclosers for several years to improve system
reliability and minimize customer interruptions. Line and tie-point recloser installations have grown
steadily at PPL Electric Utilities. The company has deployed Cooper Form 4C and the newer Cooper
Form 6 recloser controls. Some of the Cooper Form 4C controls had analog wireless modems, which
were becoming obsolete and expensive to maintain. PPL Electric Utilities sought a two-way
communications solution that would be reliable, cost effective and work throughout their service
territory. PPL Electric Utilities investigated several options before selecting a solution from Telemetric
Corporation. PPL Electric Utilities deployed Telemetric Remote Telemetry Modules (RTMs) on Cooper
Form 4C and Form 6 recloser controls installed at mid and tie-points along distribution feeders.
The Telemetric Remote Telemetry Module™ (RTM) is an intelligent wireless communication solution for
remote monitoring and control of electronic controls (IEDs). In addition to support of standard polling,
the RTM’s processor monitors the recloser’s status and provides report-by-exception or time-scheduled
reports of any analog or digital points in the Cooper recloser control. This allowed PPL Electric Utilities’
engineers to create a powerful, yet efficient monitoring and control solution.
The RTM includes an integrated digital cellular radio that communicates using the GSM cellular data
network, with extensive coverage throughout North America. Since the RTM uses the digital GSM
cellular network, no additional wireless infrastructure is required. PPL Electric Utilities’ technicians can
install the RTM in the recloser control and be communicating in minutes. The Telemetric RTM is available with native support for either DNP3.0 or Cooper 2179 (also known as PG&E) protocols. In
both cases, the RTM acts as an intelligent mini-master, looking for alarms or exception reports based
upon customer-defined rules, and reporting these events via the digital network. The intelligent
communications processing in the RTM resulted in a powerful and efficient control application that was
very cost-effective.
PPL Electric Utilities’ engineering and operations personnel use Telemetric’s suite of Web-based
applications to setup and manage the RTM devices. Engineers and operations personnel use the
Telemetric applications to view both current and historical recloser operations data, as well as setup
automated alarm condition reports that are sent via e-mail, pager or text message. With automated
reporting of recloser operations or alarm conditions – PPL Electric Utilities’ personnel get near real-time
information on distribution feeder problems and can quickly operate the reclosers, or dispatch crews to
needed locations.
PPL Electric Utilities also implemented Telemetric’s SCADA-Xchange™ software to integrate status
and control of the Cooper reclosers into its SCADA system via a standard DNP3.0 interface. This
integration gives PPL Electric Utilities’ operators the ability to see feeder level recloser status and
operate the reclosers from the SCADA system. In addition, load data from the line reclosers will be
provided to operators to give them a better picture of feeder loads.
About Telemetric
Telemetric is an industry leader in wireless communications and control solutions for the electric utility
industry. Telemetric solutions are installed at more than 200 utilities nationwide, allowing them to cost-
effectively monitor and control equipment on their electric distribution systems. Telemetric solutions
allow utilities to make the most of their electric distribution assets – communicate more efficiently,
control field assets, respond to power interruptions and equipment problems, and automate reporting
functions, resulting in lower operating costs and more reliable power. For more information, please visit www.telemetric.net, or e-mail to
info@telemetric.net.
About PPL Electric Utilities
PPL Electric Utilities is a subsidiary of PPL Corporation that provides electric delivery service to 1.4
million customers in Pennsylvania. PPL Corporation, headquartered in Allentown, Pa., controls more
than 11,000 megawatts of generating capacity in the United States, sells energy in key U.S. markets
and delivers electricity to more than 5 million customers in Pennsylvania, the United Kingdom and Latin
America.