IG-267-EN versión 01; 07/04/2017
58
Protection, metering and control models General Instructions
ekor.rpa
8.1.1. ekor.rpa-110
The ekor.rpa-110 protection unit is a unit with multilevel
overcurrent protection functions (50/51(1)/51(2)/50N/51N
(1)/51N(2)/50NS/51NS(1)/51NS(2)), automatic recloser (79),
command and control of the switch (52), etc.
It supervises the current meterings and detects the
presence/absence of voltage.
8.1.2. ekor.rpa-120
The ekor.rpa-120 protection unit is a multifunction unit,
which has additional functions to the ekor.rpa-110.
The overcurrent protection units are supplemented
with phase (67) and earth (67N/67NS) directional units.
Broken conductor protection (46) and thermal image (49)
functions are also included. Since it has voltage metering
with protection and precision class, phase overvoltage
(59_TEMP/59_INST), residual (59N_TEMP/59N_INST) and
phase undervoltage (27_TEMP/27_INST) functions are also
added, along with meterings for supervision of voltages,
active power, reactive power, and apparent power.
The main applications are facilities where directional
methods are required for stopping faults and for greater
control and supervision of the facility.
It also has a three-phase energy meter and three single-
phases for advanced network supervision functions.
In order to collect direct temperature readings in real
time for different parts of the facility, there is an option of
connecting a series of electronic temperature sensors to
the equipment via communications.
These sensors are classified in two types:
• Environmental metering.
• Transformer interior metering.
The metering obtained through these sensors can be used
for monitoring of the cubicle or switch control automations.
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