IG-267-EN versión 01; 07/04/2017
59
General Instructions
ekor.rpa
Protection, metering and control models
8.1.3. ekor.rpa-100-v/ekor.rpa-100-p
The ekor.rpa-110 and ekor.rpa-120 models include two
types of unit: v type for protection cubicles with circuit-
breaker, or p type for protection with fuses. Four different
systems are therefore defined:
• ekor.rpa-110-v
• ekor.rpa-110-p
• ekor.rpa-120-v
• ekor.rpa-120-p
The main applications v type units (circuit-breaker) are
used in are: general protection of lines, private installations,
transformers, capacitor stacks, etc. The unit has inputs and
outputs for switch monitoring and control.
In the case of p type units (switch with fuses), the
electronic unit performs all the protection functions except
for the high value polyphase short-circuits that occur in the
transformer’s primary. It has inputs and outputs for switch
monitoring and control.
ekor.rpa-100 Protection, metering and control units
Model ekor.rpa-110 ekor.rpa-120
Type v p v p
General
Phase current sensors 3 3 3 3
Earth current pickup (with zero-sequence current transformer) Op Op Op Op
Voltage sensors 3 3 3 3
Power supply 24 - 120 V
DC
± 10 %/40 - 90 V
AC
± 20 % Yes Yes Yes Yes
Metering 50/60 Hz Yes Yes Yes Yes
Time synchronisation (according to time zone) Yes Yes Yes Yes
Timer curve types: IEC and ANSI/IEEE Yes Yes Yes Yes
Current protection
Phase overcurrent (50-51(1)-51(2)) Yes Yes Yes Yes
Earth leakage overcurrent (50 N-51(1) N -51(2) N) Yes Yes Yes Yes
Earth leakage ultrasensitive (50 Ns-51(1) Ns-51(2) Ns) Yes Yes Yes Yes
Block by 2
nd
harmonic Yes Yes Yes Yes
Phase directional (67) No No Yes Yes
Neutral directional (67N) and sensitive neutral (67Ns) No No Yes Yes
Broken conductor detection (46FA) No No Yes Yes
Coordination with fuses No Yes No Yes
Voltage protection
Overvoltage (59) and undervoltage (27) No No Yes Yes
Residual overvoltage (59N) No No Yes Yes
Temperature protection
Thermal image (49) No No Yes Yes
Detection, automation and control
Detection of voltage presence/absence Yes Yes Yes Yes
Detection of energised/de-energised line Op Op Op Op
Switch command and control Yes Yes Yes Yes
Recloser Yes No Yes No
Switch monitoring and control by temperature No No Op Op
Other automations No No Op Op
9 inputs/4 outputs Yes Yes Yes Yes
Indications
Indication of reason for tripping Yes Yes Yes Yes
Indication of reason for error Yes Yes Yes Yes
Meterings
Current Yes Yes Yes Yes
Voltage No No Yes Yes
Voltage and current phasor angles No No Yes Yes
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