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Appendix
The following configuration settings relate
to the RCU.
Site specific settings
These settings will have to be provided for
each site. They are included in the RCU
configuration specification form (KMS-
3100) only for the purpose of selecting the
visibility option for each setting. Otherwise,
the specific site data is entered as part of
the commissioning process.
Line name
This setting determines how an RCU will
locate and couple with Fusesavers when
turned on. Two options are available:
1. No line name - The line name field is left
blank. This method is suitable for sites
with only one set of Fusesavers within
range of the RCU per site. Provided that
there is a configured line at that site, the
RCU will find it and connect to that line.
This is very helpful in minimizing
configuration problems, and also
permits testing an RCU in a workshop
with test Fusesavers and then taking it
to site to work with the Fusesavers
already installed at site without the need
for re-configuration.
2. Named line – In this case, the user
configures the RCU to search for a line of
a particular name. This mode must be
used when more than one Fusesaver line
is within range of the RCU.
If "No Line Name" is suitable for all sites, then the
line name can be hidden in the configuration
template to avoid site errors.
Asset number
The user can use this optional setting to
assign their own internal asset number to
the RCU for this site. This asset number is
available for transmission over the SCADA
system as a string (SPID_2). Maximum of 32
characters available.
Protocol address
Most SCADA protocols require a unique site
address, refer relevant protocol manual
supplement.
RCU power supply settings
These settings would normally be applied to
a population of RCUs.
RCU power source
The power source setting tells the RCU
which terminal block it should expect to
receive power from. Setting options are:
Auxiliary power supply or VT power
supply
Solar.
Lead-acid battery replacement interval
The purpose of this setting is to alert the
control center when RCU batteries require
replacement due to being in service for a
long time. The setting is the number of days
of battery service that indicates end of
useful battery life. If the battery has been in
service for longer than the setting, DPID 2
(RCU - Battery Needs to be Replaced)
database point is set which can be
monitored by the SCADA system.
The range of values available are from 365
to 3,650 days.
Most utilities have experience with this type
of battery in this type of application (for
example automatic circuit reclosers typically
use the same type battery) and have
maintenance schedules which are
appropriate. In this case, the battery
replacement period should be set to match
the field experience and maintenance
schedule
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