Velatia ORMAZABAL ekor.rtk Instruction manual

LIB
ekor.rtk
Setting and assembly of the voltage
detection unit
General instructions
IG-094-EN, version 09, 01/08/2019

In view of the constant evolution in standards and design, the characteristics of the elements contained in this manual are subject
to change without prior notice. These characteristics, as well as the availability of components, are subject to confirmation by
Ormazabal.
CAUTION!
When medium-voltage equipment is operating, certain components are live, other parts may be in movement and some may
reach high temperatures. Therefore, the use of this equipment poses electrical, mechanical and thermal risks.
In order to ensure an acceptable level of protection for people and property, and in compliance with applicable environmental
recommendations, Ormazabal designs and manufactures its products according to the principle of integrated safety, based on
the following criteria:
• Elimination of hazards wherever possible.
• Where elimination of hazards is neither technically nor economically feasible, appropriate protection functions are
incorporated in the equipment.
• Communication about remaining risks to facilitate the design of operating procedures which prevent such risks,
training for the personnel in charge of the equipment, and the use of suitable personal protective equipment.
• Use of recyclable materials and establishment of procedures for the disposal of equipment and components so
that once the end of their service lives is reached, they are duly processed in accordance, as far as possible, with the
environmental restrictions established by the competent authorities.
Consequently, the equipment to which the present manual refers complies with the requirements of section 11.2 of Standard
IEC 62271-1. It must therefore only be operated by appropriately qualified and supervised personnel, in accordance with the
requirements of standard EN 50110-1 on the safety of electrical installations and standard EN 50110-2 on activities in or near
electrical installations. Personnel must be fully familiar with the instructions and warnings contained in this manual and in other
recommendations of a more general nature which are applicable to the situation according to current legislation[1].
The above must be carefully observed, as the correct and safe operation of this equipment depends not only on its design but also
on general circumstances which are in general beyond the control and responsibility of the manufacturer. More specifically:
• The equipment must be handled and transported appropriately from the factory to the place of installation.
• All intermediate storage should occur in conditions which do not alter or damage the characteristics of the equipment
or its essential components.
• Service conditions must be compatible with the equipment rating.
• The equipment must be operated strictly in accordance with the instructions given in the manual, and the applicable
operating and safety principles must be clearly understood.
• Maintenance should be performed properly, taking into account the actual service and environmental conditions in
the place of installation.
The manufacturer declines all liability for any significant indirect damages resulting from violation of the guarantee, under any
jurisdiction, including loss of income, stoppages and costs resulting from repair or replacement of parts.
Warranty
The manufacturer guarantees this product against any defect in materials and operation during the contractual period. In the
event that defects are detected, the manufacturer may opt either to repair or replace the equipment. Improper handling of this
equipment and its repair by the user shall constitute a violation of the guarantee.
Registered Trademarks and Copyrights
All registered trademarks cited in this document are the property of their respective owners. The intellectual property of this manual
belongs to Ormazabal.
[1] For example, in Spain the “Regulation on technical conditions and guarantees for safety in high-voltage electrical installations” – Royal Decree
337/2014 is obligatory.

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General instructions
ekor.rtk: Setting and assembly
of the voltage detection unit
Contents
Contents
1. General description ...................................................4
2. Functional characteristics .........................................5
2.1. Operating voltages ..........................5
2.2. Actuation times..............................5
2.3. Input signals and output contacts ............6
2.4. Signalling logic for voltage presence
and/or absence ..............................7
2.4.1. Independent Logic...........................7
2.4.2. Voltage absence AND Logic –
Product (L1 x L2 x L3).........................8
2.4.3. Voltage absence OR Logic –
Sum (L1 + L2 + L3) ...........................8
3. Technical specifications.............................................9
3.1. Rated values .................................9
3.2. Mechanical design ...........................9
3.3. Insulation tests...............................9
3.4. Electromagnetic compatibility...............10
3.5. Climatic tests ...............................10
3.6. Mechanical tests ............................10
4. Voltage detection relay ekor.rtk.....................................11
4.1. Components of the unit ekor.rtk ............11
4.2. Checking the ekor.rtk relay..................12
4.3. ekor.rtk relay installation....................12
4.3.1. General instructions for
the ekor.rtk relay installation ................12
4.3.2. Circuit-breaker cubicles
(driving mechanism (R)AV) ..................14
4.3.3. Feeder cubicles cgmcosmos-l ...............14
4.3.4. Feeder cubicles cgm.3-l .....................15
4.4. Setting the parameters of
the ekor.rtk relay ...........................16
5. Connection diagram ................................................18
6. Electrical diagram ....................................................19
7. Dimensions...............................................................20

1. General description
The ekor.rtk unit is electronic equipment developed to
indicate the absence of voltage on medium-voltage (MV)
lines. It is for use in local or remote control installations
where information on the status of the lines is required.
The unit is built into the switchgear and uses the same
capacitive current signal as the ekor.vpis voltage
presence indicators to perform detection functions. Thus,
conventional medium-voltage line coupling systems such
as voltage transformers are not required, as it takes this
signal directly from the capacitor dividers installed in the
bushings.
The ekor.rtk unit is supplied duly installed, congured
and factory-tested, tted in the circuit-breaker and feeder
functions of cgmcosmos and cgm.3 system cubicles.
Figure 1.1. ekor.rtk unit with support for cgmcosmos-l cubicles
aekor.rtk
Figure 1.2. ekor.rtk unit with support for cgmcosmos-l cubicle
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General description General instructions
ekor.rtk: Setting and assembly
of the voltage detection unit

2. Functional characteristics
2.1. Operating voltages
The line voltage corresponds to the rated phase-to-phase
operating voltage.
In the event that ekor.rtk takes the capacitive signal from
the connecting set ormalink, the operating voltages are
the same:
System cgmcosmos
Line voltage
3.5 - 24 kV
Table 2.1. Cubicle operating voltages cgmcosmos
System cgm.3
Line voltage
3.5 - 36 kV
Table 2.2. Ubicle operating voltages cgm.3
For special applications contact Ormazabal.
2.2. Actuation times
The ekor.rtk voltage detection unit takes data from the
voltages of each phase every 1.25 ms. This calculate the
r.m.s. value of each voltage and compares it with certain
pre-dened values to determine whether the voltage is
above or below the set threshold.
Where the voltage is above the voltage presence indication
threshold, a time delay of 100 ms begins. After this time,
if the voltage has remained at a value above the threshold,
theelectromechanicalindicationrelayforthecorresponding
phase is opened.
When the line voltage is below the voltage absence
threshold, the relay sets at a time delay of 100 ms and closes
the indication contact of the corresponding phase.
Figure 2.1. Diagram of times of output contact actuation
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ekor.rtk: Setting and assembly
of the voltage detection unit
Functional characteristics

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 tted 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.
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Functional characteristics General instructions
ekor.rtk: Setting and assembly
of the voltage detection unit

2.4. Signalling logic for voltage presence and/or absence
The output contacts and the power supply to the unit are
accessible on a“J” terminal block for on-site connection.
The signalling logic for the absence and/or presence of
voltage depends on how the connections are made on the
output “J” terminal block.
The logic schemes that can be obtained are indicated
below:
2.4.1. Independent Logic
With this type of logic, the unit provides a contact that
indicates the absence and/or presence of voltage for
each phase. The terminals to be accessed to obtain the
information, according to this operating logic, are given in
the following gure:
Phase L1 indication: terminals J1-3 and J1-4
Phase L2 indication: terminals J1-5 and J1-6
Phase L3 indication: terminals J1-7 and J1-8
Figure 2.3. Terminals
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of the voltage detection unit
Functional characteristics

2.4.2. Voltage absence AND Logic – Product (L1 x L2 x L3)
With AND logic, the unit terminal block provides the
information on the absence of voltage in the event of a
lack of voltage on all of the phases. Voltage presence (open
contact) on any of the phases causes the circuit to open
and, therefore, the unit indicates a voltage presence.
Conversely, voltage absence is only indicated if it occurs on
the three phases.The terminals to be accessed to obtain the
information, according to this operating logic, are given in
the following gure:
Indication according to AND logic: terminals J1-3 and J1-8
(jumpers between terminals J1-4 - J1-5 and terminals J1-6 - J1-7)
Figure 2.4. Terminals
2.4.3. Voltage absence OR Logic – Sum (L1 + L2 + L3)
With OR logic, the unit terminal block provides the
information on the absence of voltage in the event of
a lack of voltage on any of the three phases. Voltage
absence on any of the phases causes the ekor.rtk, unit to
indicate an absence of voltage (closed contact), while a
voltage presence is only indicated if MV is present on the
three phases. The terminals to be accessed to obtain the
information, according to this operating logic, are given in
the following gure:
Indication according to OR logic: terminals J1-3 and J1-4
(jumpers between terminals J1-3 - J1-5 - J1-7 and terminals J1-4 - J1-6 - J1-8)
Figure 2.5. Terminals
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Functional characteristics General instructions
ekor.rtk: Setting and assembly
of the voltage detection unit

3. Technical specifications
3.1. Rated values
• Line voltage:
- Detection values 3.5...36 kV
- Measurement tolerance ± 10 %
• Indication time:
- Time delay 50, 100 ms
- Time tolerance ± 10 ms
• Frequency: 50 Hz; 60 Hz
• Output contacts:
- Voltage 380 Vac, 230 Vdc
- Current 16 A (ac)
- Switching power 500 VA
(resistive load)
• Power supply voltage:
- AC 17 V...260 V
- DC 17 V...360 V
- Consumption < 2.5 W
• Temperature:
- Operation - 40 °C...+ 60 °C
- Storage - 40 °C...+ 70 °C
3.2. Mechanical design
• IP rating:
- Case IP47
- Terminals IP2X
- In cubicle IP3X
• Dimensions:
- See attached diagram 100 x 180 x 40 mm
• Weight: 0.3 kg
• Connection:
- Cable/Terminal 0.5...2.5 mm2
3.3. Insulation tests
• IEC 60255-5:
- Insulation resistance 500 Vdc: > 0,7 GW
- Dielectric rigidity 2 kVac; 50 Hz;
1 min
• Voltage pulses:
- Standard 5 kV; 1.2/50 µs;
0.5 J
- Dierential 1 kV; 1.2/50 µs;
0.5 J
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Technical specifications

3.4. Electromagnetic compatibility
• IEC 60255-22-1:
- Damped wave 1 MHz 2.5 kV; 1 kV
• IEC 60255-22-2:
- Electrostatic discharges 8 kV
(IEC 61000-4-2, class IV)
• IEC 60255-22-3:
- Radiated elds 10 V/m
(IEC 61000-4-3, class III)
• IEC 60255-22-4:
- Bursts - Fast transients 2 kV
(IEC 61000-4-4)
• IEC 61000-4-5:
- Overvoltage pulses 4 kV; 2 kV
• IEC 61000-4-6:
- Induced radiofrequency 150 kHz...80 MHz
signals (EN 50082-2)
• IEC 61000-4-8:
- Magnetic elds 30 A/m; 50 Hz
(EN 50082-2)
• IEC 61000-4-12:
- Sinusoidal damped wave 2 kV; 1 kV
• EN 50081-2/55011:
- Radiated emissions Group 1, 150 kHz...30 MHz
Class A
3.5. Climatic tests
• IEC 60068-2-1:
- Slow changes. Cold - 40 °C; 960 min
• IEC 60068-2-2:
- Slow changes. Heat + 60 °C; 120 min
+ 70 °C; 960 min
• IEC 60068-2-30:
- Damp heat cycles + 40 °C; 92%;
5760 min
3.6. Mechanical tests
• IEC 60255-21-1:
- Sinusoidal vibration. Response 10-150 Hz; 1 g
- Sinusoidal vibration. Endurance 10-150 Hz; 2 g
• IEC 60255-21-2:
- Impacts. Response 11 ms; 5 g
• Impact. Endurance 11 ms; 15 g
• Shock. Endurance 16 ms; 10 g
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Technical specifications General instructions
ekor.rtk: Setting and assembly
of the voltage detection unit

4. Voltage detection relay ekor.rtk
4.1. Components of the unit ekor.rtk
The assembly required to install the ekor.rtk unit in a cubicle
consists of the four parts indicated below:
1. Voltage presence relay ekor.rtk.
2. Wiring from the cubicle bushing to the ekor.rtk relay.
3. Wiring from the ekor.rtk relay to the voltage presence
indicator ekor.vpis.
4. Support for attaching the ekor.rtk relay in the cubicle.
The necessary support for attaching the ekor.rtk voltage
detection relay depends on the type of cubicle in which it
is installed.
1Relay ekor.rtk
2Wiring from bushing to ekor.rtk relay
3Wiring from ekor.rtk relay to ekor.vpis
4Support for ekor.rtk relay in cgmcosmos-l feeder cubicles
5Support for ekor.rtk relay in cgmcosmos-v, cgm.3-v circuit-
breaker cubicles
6ekor.vpis voltage presence indicator
Figure 4.1. ekor.rtk unit with support for cgmcosmos-v, cgm.3-v
cubicles
In the lower central part, ekor.rtk with support for
cgmcosmos-l cubicles
Figure 4.2. Support for ekor.rtk in circuit-breaker cubicles (AV type)
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ekor.rtk: Setting and assembly
of the voltage detection unit
Voltage detection relay ekor.rtk

4.2. Checking the ekor.rtk relay
To test the output contacts on the ekor.rtk, press the test
push-button installed on the unit for this purpose, as shown
in “Figure 4.3. Test push-button and indication LED”. The
three phase output contacts will change position while the
push-button is being pressed. The green power indication
LED will turn red during the test to inform the operator of
the status of the unit. Once the test is completed, the LED
will switch back from red (relay in test status) to green (relay
in operating status).
1Test push-button
2Indication LED
Figure 4.3. Test push-button and indication LED
4.3. ekor.rtk relay installation
To install an ekor.rtk relay in a cubicle, you must have the
ekor.rtk voltage presence relay assembly and the necessary
support, depending on the type of cubicle in which it is to
be tted.
4.3.1. General instructions for the ekor.rtk relay installation
1. Loosen and remove the 2 screws (A) securing the
ekor.vpis voltage presence indicator using a Philips
screwdriver and pull it outwards to remove.
Figure 4.4. Remove ekor.vpis indicator
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Voltage detection relay ekor.rtk General instructions
ekor.rtk: Setting and assembly
of the voltage detection unit

2. Remove the ekor.vpis voltage presence indicator
connector.
Figure 4.5. Remove ekor.vpis indicator connector
3. Connect the ekor.vpis voltage presence indicator
connector you have just removed to the appropriate
connector of the ekor.rtk relay.
Figure 4.6. Connect connector to ekor.rtk relay
4. Connect the ekor.rtk relay to the ekor.vpis, voltage
presence indicator using the cable supplied in the kit
(to the relay and to the indicator).
Figure 4.7. Connect the relay to the display using the supplied cable
5. Connect the terminations running from the ekor.rtk
relay to the user terminal block (see electrical diagram
Figure 6.1 on page 19).
The user terminal block is located in a certain position
depending on the cubicle used.
Figure 4.8. Connect the relay terminals to the user terminal block
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ekor.rtk: Setting and assembly
of the voltage detection unit
Voltage detection relay ekor.rtk

4.3.2. Circuit-breaker cubicles (driving mechanism (R)AV)
In the functions of automatic circuit-breaker with driving
mechanism (R)AV, the ekor.rtk relay is located in the bottom
right part of the cubicle’s driving mechanisms area.
Figure 4.9. ekor.rtk in cubicles cgm.3-v ((R)AV)
Figure 4.10. ekor.rtk in cubicles cgmcosmos-v ((R)AV)
4.3.3. Feeder cubicles cgmcosmos-l
In cgmcosmos-l feeder cubicles, the ekor.rtk relay is located
below the manometer to the left of the ekor.vpis voltage
presence indicator, as shown in the following gure.
Figure 4.11. Location of the ekor.rtk relay in cgmcosmos-l cubicles
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Voltage detection relay ekor.rtk General instructions
ekor.rtk: Setting and assembly
of the voltage detection unit

4.3.4. Feeder cubicles cgm.3-l
In cgm.3-l feeder cubicles, the ekor.rtk relay is located at
the bottom right, below the ekor.vpis voltage presence
indicator.
Figure 4.12. ekor.rtk in cubicles cgm.3-l
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ekor.rtk: Setting and assembly
of the voltage detection unit
Voltage detection relay ekor.rtk

4.4. Setting the parameters of the ekor.rtk relay
The relay is factory-set in line with installation data:
• Line operating voltage
• Actuation time
• Line frequency
For special applications contact Ormazabal.
SW1 and SW2 are used to dene the line operating voltage.
SW3 denes the actuation time and SW4 species the line
frequency.
The possible congurations obtained using selector S1 are
those shown below, depending on the system to which the
cubicle where the ekor.rtk relay is installed belongs.
Figure 4.13. Printed circuit board and selector S1 on the relay ekor.rtk
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Voltage detection relay ekor.rtk General instructions
ekor.rtk: Setting and assembly
of the voltage detection unit

cgmcosmos system cubicles with voltage presence
indication from the bushing:
SW1 SW2 Voltage SW3 Time SW4 Frequency
OFF X X 3.5 - 24 kV 100 ms X50 Hz
ON X
cgm.3 con system cubicles with voltage presence
indication from the bushing:
SW1 SW2 Voltage SW3 Time SW4 Frequency
OFF X X 3.5 - 24 kV 100 ms X50 Hz
ON X
cgmcosmos system cubicles with voltage presence
indication from the ormalink connecting set:
SW1 SW2 Voltage SW3 Time SW4 Frequency
OFF X X 3.5 - 36 kV 100 ms X50 Hz
ON X
cgm.3 system cubicles with voltage presence indication
from the ormalink connecting set:
SW1 SW2 Voltage SW3 Time SW4 Frequency
OFF X X 3.5 - 36 kV 100 ms X50 Hz
ON X
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ekor.rtk: Setting and assembly
of the voltage detection unit
Voltage detection relay ekor.rtk

5. Connection diagram
APower supply
BOutputs
CBushing output
DIndicator ekor.vpis
EOutput contacts
FPower supply
GTest push-button
W0 Error output
Figure 5.1. Connection diagram of relay ekor.rtk
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Connection diagram General instructions
ekor.rtk: Setting and assembly
of the voltage detection unit

6. Electrical diagram
The following gure shows the electrical diagram
corresponding to the relay ekor.rtk. For greater detail, see
diagram 996235 for cubicles cgm.3, and diagram 996414,
for cubicles cgmcosmos, which are included with the unit.
APower supply
S-l1L1 output
S-l2L2 output
S-l3L3 output
BBushing cgm
W0 Error output
Figure 6.1. Connection diagram of relay ekor.rtk
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General instructions
ekor.rtk: Setting and assembly
of the voltage detection unit
Electrical diagram

7. Dimensions
Figure 7.1. Dimensions in mm for relay ekor.rtk
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Dimensions General instructions
ekor.rtk: Setting and assembly
of the voltage detection unit