FUNCTION CHARACTERISTICS
327
The element can be enabled or disabled by setting ON or OFF the State parameter inside the Set
\ Profile A (or B) \ Vector jump-dphi \ dphi> Element \ Definite time menu.
The phase change only positive or only negative, as well as any variation (module) may be selected
by means of the
Mode dphi>parameter inside the Set \ Profile A (or B) \ Vector jump-dphi \
dphi> Element \ Setpoints menu.
Breaker failure (BF)
dphi 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)”
in relevant BF menus
1
:
• Set \ Profile A (or B) \ Breaker failure - BF side H
• Set \ Profile A (or B) \ Breaker failure - BF side L
Logical block (Block1)
If the dphi>BLK1enabling parameter is set to ON and a binary input is designed for logical block
(Block1), the protection is blocked off whenever the given input is active.
The trip timer is held in reset condition, so the operate time counting starts when the input block goes
down.
2
The enabling parameters are available inside the Set \ Profile A (or B) \ Vector jump-dphi
\ dphi> Element \ Setpoints menus, while the Block1 function must be assigned to the selected
binary input inside the Set \ Board 1(2) inputs \ Binary input IN1-1...(IN1-x) menus.
Note 1 The common settings concerning the Breaker failure protection are adjustable inside the Breaker Failure - BF menu.
Note 2 The exhaustive treatment of the logical block (Block 1) function may be found in the “Logic Block” paragraph inside CONTROL AND MONITOR-
ING section.
XMR-D EQUIPMENT MANUAL
Ed. 2.9 - 02/2021
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