Thytronic XMR-D User Manual

188
FUNCTION CHARACTERISTICS
Second harmonic restraint
For all overcurrent elements, a block from the second harmonic restraint may be set by setting ON the
IE1>2ndh-REST,IE1>>2ndh-REST,IE1>>>2ndh-REST parameters inside the Set \ Profile
A (or B) \ Residual overcurrent-50N.1/51N.1 \ IE1> Element (IE1>> Element, IE1>>> Element) \ Setpoin-
ts menus.
Cold load pickup
If the CLP function (Cold Load Pick-up) is enabled for element blocking, the selected threshold may
be blocked for an adjustable time interval, starting from the circuit breaker closure.
This operating mode may be select by setting
ON-Element blocking the IE1CLP> Mode, IE-
1CLP>>Mode,IE1CLP>>>Mode parameters.
If the CLP function (Cold Load Pick-up) is enabled for threshold change, the selected threshold may
be changed for an adjustable time interval, starting from the circuit breaker closure.
This operating mode (
ON-Changesetting= IE1CLP>Mode,IE1CLP>>Mode,IE1CLP>>>
Mode) and the concerning operating time within the CLP (tE1CLP>,tE1CLP>>,tE1CLP>>>)
may be adjusted inside the Set \ Profile A (or B) \ Residual overcurrent-50N.1/51N.1 \ IE> Element
(IE1>> Element, IE1>>> Element) \ Setpoints menus, whereas the operating thresholds within the
CLP (
IE1CLP>def,IE1CLP>inv,....) may be adjusted inside the Set \ Profile A (or B) \ Residual
overcurrent-50N.1/51N.1 \ IE1> Element (IE1>> Element, IE1>>> Element) \ Definite time (Inverse
time) menus.
For every of the four thresholds the following block criteria are available:
Logical block (Block1)
If the IE1>BLK1,IE1>>BLK1and/orIE1>>>BLK1 enabling parameters are set to ON and a
binary input is designed for logical block (Block1), the concerning element is blocked off whenever
the given input is active.
[1]
The enabling parameters are available inside the Set \ Profile A (or
B) \ Residual overcurrent-50N.1/51N.1 \ IE1> Element (IE1>> Element, IE1>>> Element) \ Setpoints
menus, while the Block1 function must be assigned to the selected binary input inside the Set \
Board1(2) inputs \ Binary input IN1-1...INx-x) menus.
Selective block (Block2)
All along the protective elements the selective block may be set.
The logic selectivity function may be performed by means any combination of the following I/O:
• One committed pilot wire input (BLIN1).
• One or more binary inputs designed for input selective block.
• One committed pilot wire output (BLOUT1).
• One or more output relays designed for output selective block.
Only when the committed pilot wire are used the continuity check of the pilot wire link is active
Use of committed pilot wire input BLIN1:
• The protection is blocked off according the selectivity block criteria when the input BLIN1 is active.
The information about phase or phase+earth block may be select programming the ModeBLIN1
parameter inside the Set \ Profile A (or B) \ Selective block-BLOCK2 \ Selective block IN menus.
Use of binary inputs:
• If the IE1>BLK2IN, IE1>>BLK2IN and/or IE1>>>BLK2IN parameters are set to ON and
a binary input is designed for selective block (Block2), the protection is blocked off by phase ele-
ments (Block2 Iph) or by any protection element (Block2 Iph/IE) according the selectivity block
criteria.
[2]
The enable IE1>BLK2IN,IE1>>BLK2INand/orIE1>>>BLK2INparameters are
available inside the Set \ Profile A (or B) \ Residual overcurrent-50N.1/51N.1 \ IE1> Element (IE1>>
Element, IE1>>> Element) \ Setpoints menus, while the Block2 Iph and
Block2Iph/IE functions
must be assigned to the selected binary inputs inside the Set \ Board1(2) inputs \ Binary input IN1-
1...INx-x) menus.
Use of committed pilot wire output BLOUT1:
• The information about phase or phase+earth block may be select programming the ModeBLOUT1
parameter (
OFF-ONIPh-ONIPh/IE-ONIE) inside Set \ Profile A (or B) \ Selective block-
BLOCK2 \ Selective block OUT menus.
Use of output relay:
• If the IE1>BLK2OUT,IE1>>BLK2OUTand/orIE1>>>BLK2OUT enable parameters are set
to ON and a output relay is designed for selective block (Block2), the protection issues a block
output by phase elements (BLK2OUT-Iph) or by any protection element (BLK2OUT-Iph/IE), whe-
never the given element (Start IE>, Start IE>>and/or Start IE>>>) becomes active. The enable
IE1>BLK2OUT, IE1>>BLK2OUT,and/or IE1>>>BLK2OUT parameters (ON or OFF) are
available inside the Set \ Profile A (or B) \ Residual overcurrent-50N.1/51N.1 \ IE1> Element (IE1>>
Element, IE1>>> Element) \ Setpoints menus, while the
BLK2OUT-Iph-K,BLK2OUT-Iph/IE-K
and/or BLK2OUT-IE-K output relays and LEDs (BLK2OUT-Iph-L, BLK2OUT-Iph/IE-L e/o
BLK2OUT-IE-L) must be select inside the Set \ Profile A (or B) \ Selective block-BLOCK2 \ Se-
lective block OUT menu.
Note 1 The description of the logical block (Block 1) function may be found in the “Logic Block” paragraph inside CONTROL AND MONITORING section
Note 2 The exhaustive treatment of the selective block (Block 2) function may be found in the “Selective Block” paragraph inside CONTROL AND
MONITORING section
XMR-D EQUIPMENT MANUAL
Ed. 2.9 - 02/2021

Thytronic XMR-D Specifications

General

Brand	Thytronic
Model	XMR-D
Category	Protection Device
Language	English