CHARACTERISTICS
50
NV10B - Manual - 04 - 2022
Both overvoltage elements can produce the Breaker Failure output if the U> BF and U>>BF pa-
rameters are set to ON.
The parameters are available inside the Set \ Profile A(or B) \ Overvoltage - 59 \ U> Element (U>>
Element) \ Setpoints menus.
[1]
All the named parameters can be set separately for Profile A and Profile B (Set \ Profile A(or B) \
Overvoltage - 59 \ U> Element (U>> Element) \ Setpoints menus).
Note 1 The common settings concerning the Breaker failure protection are adjustable inside the Breaker Failure - BF menu.
all-F59.ai
General logic diagram of the overvoltage elements - 59
U U
U> Element
U>> Element
Start U>>
Start U>>
Start U>
Trip U>
Trip U>>
&
U> disbyU>>
U> inhibition
t
U>
def
t
U>
inv
U>
def
t
U>>
def
U>>
def
U>
inv
U> Curve U> Enable State
Block1
BLK1U>
&
U>BLK1
Start U>
&
Block1
BLK1U>>
&
U>>BLK1
Start U>>
&
U>BF
Trip U>
&
U>BF
AND
UU
L1
,U
L2
,U
L3
OR
Common configuration
Logic59
Fun-F59_S1.ai
U> Curve
0T
RESET
t
U>
0T
TRIPPING MATRIX
(LED+RELAYS)
t
U>def
t
U>inv
Start U>
U>ST-K
Start U>
U>TR-K
U>ST-L
U>TR-L
Trip U>
Trip U>
Trip U>
BF Enable (ON≡ Enable)
U>BF
towards BF logic
&
BLK1U>
U> BF
&
&
&
Enable (ON≡ Enable)
Block1 input (ON≡ Block)
U>BLK1
Block1
Block1
Binary input INx (x=1...8-16)
T 0
Logic
INx
t
ON
INx
t
ON
INx
t
OFF
T0
n.o.
n.c.
INx
t
OFF
U> Inhibition
(ON≡
Inhibit
)
&
Logic59
≥1
&
U
L1
U
L2
U
L3
≥ 1
&
State
U>
inv
U
≥
U>
def
U
≥
U>
inv
U>
def
&
State
ON≡ Enable U> overvoltage element
U> Enable
Logic diagram concerning the first threshold (U>) of the overvoltage element - 59
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