Thytronic NC20 - Page 98

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NC2 0 - Manual - 01 - 2015
FUNCTION CHARACTERISTICS
ments (Block2 Iph) or by any protection element (Block2 Iph/IE) according the selectivity block
criteria.
[1]
The enable IE>BLK2IN, IE>>BLK2IN and/or IE>>>BLK2IN parameters are avail-
able inside the Set \ Profi le A(or B) \ Residual overcurrent-50N/51N \ IE> Element (IE>> Element,
IE>>> Element) \ Setpoints menus, while the Block2 Iph and Block2 Iph/IE functions must be
assigned to the selected binary inputs inside the Set \ Inputs \ Binary input IN1(2) menus (IN1 or
IN2 matching).
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 \ Profi le A(or B) \ Selective block-
BLOCK2 \ Selective block OUT menus.
Use of output relay (K1...K6):
If the IE>BLK2OUT, IE>>BLK2OUT and/or IE>>>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), whenever the
given element (Start IED>, Start IED>>, Start IED>>> and/or Start IED>>>>) becomes active. The
enable IED>BLK2OUT, IED>>BLK2OUT, IED>>>BLK2OUT and/or IED>>>>BLK2OUT
parameters (ON or OFF) are available inside the Set \ Profi le A(or B) \ Residual overcurrent-
50N/51N \ IE> Element (IE>> Element, IE>>> 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 \ Profi le A(or B) \ Selec-
tive block-BLOCK2 \ Selective block OUT menu.
Note 1 The exhaustive treatment of the selective block (Block 2) function may be found in the “Selective Block” paragraph inside CONTROL AND
MONITORING section
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