Velatia ORMAZABAL ekor.rtk, General Instructions Manual

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-defined 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, 

the electromechanical indication relay for the corresponding 

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

IG-094-EN version 09; 01/08/2019

5

General instructions

ekor

.rtk: Setting and assembly  

of the voltage detection unit

Functional characteristics