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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

Page 1: ...LIB ekor rtk Setting and assembly of the voltage detection unit General instructions IG 094 EN version 09 01 08 2019...

Page 2: ...ectrical 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 si...

Page 3: ...um 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 Voltag...

Page 4: ...entional 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...

Page 5: ...This calculate the r m s value of each voltage and compares it with certain pre defined values to determine whether the voltage is above or below the set threshold Where the voltage is above the volt...

Page 6: ...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 con...

Page 7: ...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...

Page 8: ...als 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 voltag...

Page 9: ...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 Ca...

Page 10: ...00 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 H...

Page 11: ...on the type of cubicle in which it is installed 1 Relay ekor rtk 2 Wiring from bushing to ekor rtk relay 3 Wiring from ekor rtk relay to ekor vpis 4 Support for ekor rtk relay in cgmcosmos l feeder cu...

Page 12: ...ting status 1 Test push button 2 Indication 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 volt...

Page 13: ...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...

Page 14: ...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 voltag...

Page 15: ...lay is located at the bottom right below the ekor vpis voltage presence indicator Figure 4 12 ekor rtk in cubicles cgm 3 l IG 094 EN version 09 01 08 2019 15 General instructions ekor rtk Setting and...

Page 16: ...SW3 defines the actuation time and SW4 specifies the line frequency The possible configurations obtained using selector S1 are those shown below depending on the system to which the cubicle where the...

Page 17: ...50 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 X 50 Hz ON X cgm 3 system cubicl...

Page 18: ...icator ekor vpis E Output contacts F Power supply G Test push button W0 Error output Figure 5 1 Connection diagram of relay ekor rtk IG 094 EN version 09 01 08 2019 18 Connection diagram General instr...

Page 19: ...s cgm 3 and diagram 996414 for cubicles cgmcosmos which are included with the unit A Power supply S l1 L1 output S l2 L2 output S l3 L3 output B Bushing cgm W0 Error output Figure 6 1 Connection diagr...

Page 20: ...7 Dimensions Figure 7 1 Dimensions in mm for relay ekor rtk IG 094 EN version 09 01 08 2019 20 Dimensions General instructions ekor rtk Setting and assembly of the voltage detection unit...

Page 21: ...General instructions ekor rtk Setting and assembly of the voltage detection unit Notes Notes IG 094 EN version 09 01 08 2019 21...

Page 22: ...Notes General instructions ekor rtk Setting and assembly of the voltage detection unit Notes IG 094 EN version 09 01 08 2019 22...

Page 23: ......

Page 24: ...Subject to change without prior notice For further infotmation contact Ormazabal www ormazabal com Ormazabal Protection Automation IGORRE Spain...

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