PARAMETER SETTING

The 'Parameter Setting' menu can be accessed from any screen of the 'Display' menu by pressing the SET key. The protection remains operational with the initial parameters, until the user returns to the ‘Display’ menu by pressing on the SET key again.

As a precautionary measure, the ‛Parameter Setting’ menu is protected by a password, which is entered each time the user wishes to access this menu. By default, all of the ekorRP units have the password 0000. This password can be modified by the user as explained further on.

This menu allows the user to make changes to various relay parameters.

These parameters can be grouped as follows:

 Parameters for the protection and detection functions

 Date and time

 Communication parameters

 Information on the number of trips

 Password change

When the relay is in the 'Parameter Setting’ menu, the indication SET on the lower middle section of the relay screen allows the user to identify the menu quickly.

8.3.1. Protection parameters

The ekorRP units include two methods for selecting the setting parameters. manual and automatic.

The manual method consists of entering each protection parameter one by one.

On the other hand, the automatic method makes the parameter entry easier and quicker for the user. In this method, the user simply enters 2 pieces of data: Installation transformer power (P_t), and line voltage (T_r). From these 2 pieces of data, the relay sets the parameters according to:

The selected full load current value is achieved by always rounding up the value.

The rest of setting values are fixed (see the table below), although the user can change any of the values selected in the program from the manual mode.

Phase Protection Earth Protection

Setting Automatic Value Setting Automatic Value Overload Factor 120 % Earth Leakage Factor 20 %

Curve Type EI Curve Type NI

Constant Multiplier 0,2 Constant Multiplier 0,2 Short-circuit Factor 10⁽*⁾ Short-circuit Factor 5

Trip Time 0,1⁽*⁾ Trip Time 0,1⁽*⁾

Tripping Enabled DT Tripping Enabled DT

(*⁾ For protection using the ekorRPT-101, 201 or 301 models with 5-100 A range toruses, the short-circuit factor

is 7 and the instantaneous tripping time is 0.4.

8.3.2. Parameter Setting Menu

When accessing the ‘Parameter Setting’

menu through the SET key, the relay requests a password. The settings introduction area is accessed once it is verified that the password is correct. At this moment, manual configuration (CONF PAR) or automatic configuration (CONF TRAF) must be selected. You can change from one to the other using the ‘right’ and ‘left’ keys.

Press the SET key to select the desired option. The diagram on the right graphically explains this process.

Once inside any of the two settings entry areas, the user can move from one parameter to another using the ‘up’ and

‘down’ keys, the same as in the ‘Display’ mode. Press the ESC or SET key to exit this menu and access the ‘Display’ menu. The ESC key will disregard all setting changes made previously, whereas the SET key will save all data before continuing.

To change a setting, proceed as follows:

1. Display the setting to be changed on the screen.

2. Press the ‘Left’ or ‘Right’ keys. The data will start to flash.

3. Adjust the value required with the 'Up' and 'Down' keys. If the setting is numeric, the blinking number can be changed with the 'Left' or 'Right' keys.

4. To exit, press SET (save and exit), or ESC (clear changes and exit).

The password can be modified by first entering the current password. The process is explained graphically in the diagram on the right. As shown in this diagram, password modification consists of four steps.

The two following tables show the protection parameters in the ‘Parameter Setting’ menu, along with an explanation of each of them and the values they can have. This information is shown for each of the two setting modes: manual or automatic.

Manual Setting Menu

Parameter Meaning Range

I> Phase curve type / unit disabling OFF, NI, VI, EI, DT I 0> Zero-sequence curvetype/Unitdisabling OFF, NI, VI, EI, DT I>> Enabling instantaneous phase unit OFF, DT I 0>> Enabling instantaneous earth unit OFF, DT In. A Phase full load current 192 A for ekorRPX-X01

480 A for ekorRPX-X02

I> Phase overload factor 1,00 – 1,30

K Constant Phase multiplier 0,05 – 1,6

I>> Phase instantaneous multiplier 1 – 25 T>> Phase instantaneous time delay 0,05 – 2,5

**I0> Earth leakage factor 0,1 – 0,8

K ₀ Constant Zero-sequence multiplier 0,05 – 1,6 I 0>> Zero-sequence instantaneous multiplier 1 – 25 T 0>> Zero-sequence instantaneous time delay 0,05 – 2,5 DATE Modify current day (day and month) 1 - 31 / 1 - 12

YEAR Modify the current year 2000 – 2059

TIME Modify the current time 00:00 - 23:59

SEC. Modify the current second 0 - 59

*NPER Peripheral number 0 – 31

*PROT Protocol number 0000^[3] MODBUS-0001

*BAUD Transmission speed (kbps) 1,2; 2,4; 4,8; 9,6; 19,2; 38,4

*PARI Parity No, even, odd

*LEN Word length 7; 8

*STOP Stop bits 1; 2

DT.AD Day and month on which the last setting was

made Cannot be changed

YE.AD Year in which the last setting was made Cannot be changed HR.AD Time at which the last setting was made Cannot be changed SE.AD Second at which the last setting was made Cannot be changed

NTP Number of phase trips Cannot be changed

NTG Number of earth trips Cannot be changed

*V.0 Firmware version Cannot be changed

PSWV Password modification 0000 - 9999

(*⁾ Only available for firmware version 18 or later.

(**⁾ n the case of zero-sequence toroidal transformer, the range is 0.5 A-In and the parameter is Ig.

Automatic Setting Menu

Parameter Meaning Range

tP 0W Transformer Power (kVA) 50; 100; 160; 200; 250; 315; 400; 500;

630; 800; 1000; 1250; 1600; 2000 Tvol Line voltage (kV) 6,6; 10; 12; 13,2; 15; 20; 25; 30

DATE Current day and month 1-31/1-12

YEAR Current year 2000-2059

TIME Current time 00:00-23:59

SEC. Current second 0-59

*NPER Peripheral number 0-31

*PROT Protocol number 0000^[4] (MODBUS)-0001

*BAUD Transmission speed (kbps) 1,2;2,4;4,8;9,6;19,2;38,4

*PARI Parity No, even, odd

*LEN Word length 7, 8

*STOP Stop bits 1, 2

DT.AD Day and month on which the last setting

was made Cannot be changed

YE.AD Year in which the last setting was made Cannot be changed HR.AD Time at which the last setting was made Cannot be changed SE.AD Second at which the last setting was

made Cannot be changed

NTP Number of phase trips Cannot be changed

NTG Number of earth trips Cannot be changed

NTE Number of external trips Cannot be changed

*V.0 Firmware version Cannot be changed

PSWV Password modification 0000-9999

(*⁾ Only available for firmware version18 or later