IG-267-EN versión 01; 07/04/2017
12
Applications General Instructions
ekor.rpa
2. Applications
2.1. Remote control of transformer and distribution substations
The ekor.rpa-100 protection, metering and control units
make it possible to handle remote control applications of the
transformer and switching substations, by implementing
the control and monitoring of each switch through the
units associated with each functional unit.
Figure 2.1. Remote-controlled switching substation
The use of a remote control terminal and ekor.rpa-100 units
enable the user to visualise and operate each functional
unit remotely thanks to the inputs and outputs fitted for
this purpose.
Figure 2.2. Layout of dierent stations in the network
Units that include this remote control function:
Unit Type of cubicle
ekor.rpa-100 type = p
Fuse-combination switch
ekor.rpa-100 type = v
Circuit-breaker
Table 2.1. Remote control function units
The remote controlling applications complement the
ekor.rci integrated control unit associated to feeder
functions (see Ormazabal document IG-158).
2.2. Automatic reclosing of lines
The reclosing function performs the automatic reclosing of
lines once the protection unit has commanded the trip and
the switch has opened.
This function is always associated with Ormazabal circuit-
breaker cubicles.
The protection units with automatic reclosing have a series
of advantages over protections without reclosing:
• They reduce the time in which electrical power is
interrupted.
• They avoid the need to locally re-establish the service in
substations without remote control for transient faults.
• They reduce the fault time using a combination of fast
switch trips and automatic reclosings, which results in
lesser damage caused by the fault and generates a lower
number of permanent faults derived from transient faults.
The unit which includes this function is:
Unit Type of cubicle
ekor.rpa-100 type = v
Circuit-breaker
Table 2.2. Recloser function unit
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