Thytronic XMR-P 4l+4V User Manual

FUNCTION CHARACTERISTICS
147
If the CLP function (Cold Load Pick-up) is enabled for blocking 49, the thermal image is blocked for an
adjustable time interval, starting from the circuit breaker closure.
2
The operating mode parameter may be select by setting
ON-Elementblockingthe DThCLPMode
parameter inside the Set \ Profile A (or B) \ Thermal image-49LT \ Common configuration menu.
If the CLP function (Cold Load Pick-up) is enabled for threshold change, the equivalent thermal
current may be decreased by means a K
INR
factor for an adjustable time interval, starting from
the circuit breaker closure.
3
The operating mode parameter may be select by setting ON-Chan-
gesettingthe DThCLPMode parameter inside the Set \ Profile A (or B) \ Thermal image-49LT \
Common configuration menu.
The operating mode parameter may be select by setting
ON-Changesettingthe DThCLPMode
parameter inside the Set \ Profile A (or B) \ Thermal image-49LT \ Common configuration menu.
La selezione del modo di funzionamento per la modifica della soglia è presente nel menù Set \ Pa-
rametri configurazione A(o B) \ Immagine termica - 49LT \ Configurazioni comuni programmando
ON-Modicasogliail parametro DThCLPMode.
Second harmonic restraint
For the Dth> threshold, a block from the second harmonic restraint may be set by setting ON
the DTh>2ndh-REST parameter inside the Set \ Profile A (or B) \ Thermal image-49LT \
Common configuration menu.
All elements can be enabled or disabled by setting ON or OFF the
DThetaAL1 Enable, DThe-
taAL2 Enable and/or DTheta> Enable parameters inside the Set \ Profile A (or B) \ Thermal
image-49LT \ DthAL1 Element (DthAL2 Element, Dth> Element) menus>.
The trip element (Dth>) may be inhibited when a start of at least one of the overcurrent element
(50/51) is active, if the Dth>disby50-51 parameter is set ON inside the Set \ Profile A (or B) \Ther-
mal image-49LT \ Dth> Element menu.
The D
q
IN
parameter sets a minimum level of previous thermal image Dq
p
when the protection relay
is powered or when a remote (binary input) or local (keyboard or Thyvisor) command is issued.
The DthIN parameter may be adjusted inside the Set \ Profile A (or B) \ Thermal image-49LT \
Common configuration menu.
To active the D
q
IN
preset value remotely, a binary input must be programmed as InitDTheta fun-
ction inside the Set \ Board 1(2) inputs \ Binary input IN1-1...(IN1-x) menus.
Breaker failure (BF)
Dth> threshold can be associated to BF (H) and BF (L) protection by activating the relative parameter
in the matrices “Selection of function tripping for BF (H)” or “Selection of function tripping for BF (L)”
all-F49LT.ai
General logic diagram of the thermal image elements - 49LT
K
INR
T DthIN DthCLP Mode Dth2ndh REST tDthCLP
Common configuration
I
th
Dth> Element
Trip DTh>
DTh> Enable DTh>
BLK4OUT
Dth>BLK4
Start I>
&
BLK2OUT
Dth>BLK2OUT
&
Trip Dth>
Trip Dth>
BLK2INDth>
Block2
&
Dth >BLK2IN
&
DthAL1 Element
DThAL1
DThAL1
DThAL1
DThAL1 Enable
I
th
BLK4OUT
DthAL1BLK4
&
BLK2OUT
DthAL1BLK2OUT
&
Trip Dth>
Block1
BLK1DthAL1
&
DthAL1BLK1
&
Dth>AL1
DthAL1
BLK2INDthAL1
Block2
&
Dth AL1BLK2IN
&
DthAL2
BLK2INDthAL2
Block2
&
Dth AL2BLK2IN
&
DthAL2 Element
DThAL2
DThAL2
DThAL2 Enable
I
th
BLK4OUT
DthAL2BLK4
&
BLK2OUT
DthAL2BLK2OUT
&
Block1
BLK1DthAL2
&
DthAL2BLK1
&
Dth>AL2
Dth>AL2
Dth>AL2
Block1
BLK1Dth>
&
Dth>BLK1
Trip Dth>
&
&
50-51 inhibition
Dth>disby50-51
XMR-D EQUIPMENT MANUAL
Ed. 2.9 - 02/2021

Thytronic XMR-P 4l+4V Specifications

General

Brand	Thytronic
Model	XMR-P 4l+4V
Category	Protection Device
Language	English