2.3. Input signals and output contacts
The
ekor
.rtk unit has three inputs, one for each line phase,
associated to the voltage measurement on each of the
cubicle’s bushings, allowing for the individual detection of
the presence or absence of voltage in each of the phases.
It also has three outputs associated to each of the
aforementioned inputs. The presence or absence of voltage
is indicated using volt-free contacts, one per phase.
The unit is also fitted with another contact to indicate errors
or operating problems.
Figure 2.2.
Diagram of the input signals and output contacts of the
ekor
.rtk
The lack of external power to the relay means that all output
contacts are OFF.
The following table shows the statuses of the output
contacts and an explanation of their indication.
Output
contact
Contact
status
Indication
L1
ON
Voltage absent on phase L1
OFF
Voltage present on phase L1
L2
ON
Voltage absent on phase L2
OFF
Voltage present on phase L2
L3
ON
Voltage absent on phase L3
OFF
Voltage present on phase L3
WD
ON
Relay operational
OFF
Relay not operational. Internal error or
lack of power
Table 2.3.
Statuses of output contacts
In the event that
ekor
.rtk loses power, or breaks down,
all the indicating contacts switch OFF.
IG-094-EN version 09; 01/08/2019
6
Functional characteristics
General instructions
ekor
.rtk: Setting and assembly
of the voltage detection unit
Summary of Contents for ORMAZABAL ekor.rtk
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