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Chapter 4 - Typical Applications
Electric utilities are continually searching for ways to lower operating costs,
improve efficiencies, and provide better customer service. Various distribu-
tion automation techniques are quickly being introduced and embraced. This
is causing a proliferation of IEDs, such as electronic meters, relays and
digital fault recorders to be installed into electrical substations. Due to
different IED manufacturers using different protocols, communicating with
these devices can be difficult. In addition, if an analog telephone line is used
as the primary communication link, each IED requires its own modem to
convert from an analog signal to a digital one.
Figure 1 Single Stand Alone Configuration
To avoid the expense of using multiple modems, a user can install the DS-
100 in front of the IEDs:
