92
NVA100X-D - Manual - 02 - 2016
FUNCTION CHARACTERISTICS
The element has two adjustable thresholds with time defi nite delay.
The active power is compared with the setting value (
P
1
>
def
,
P
2
>
def
) powers above the associated
pickup value are detected and a start is issued. After expiry of the associated operate time (
t
P1
>
def,
t
P2
>
def
) a trip command is issued; if instead the power drops below the threshold, the element is
restored.
The elements can be enabled or disabled by setting
ON
or
OFF
the
State
parameter inside the
Set \ Profi le A(or B) \ Directional active overpower-32P \
P1> Element (P2> Element) \ Defi nite time
menu.
An adjustable reset time delay is provided for every threshold (
t
P1>RES
,
t
P2>RES
).
Logical block (Block1)
If the
P1>BLK1
and/or
P2>BLK1
enabling parameters is set to
ON
and a binary input is designed
for logical block (Block1), the protection is blocked 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.
[1]
The enabling parameters are available inside the
Set \ Profi le A(or B) \ Directional active
overpower - 32P \
P1 Element (P2 > Element) \ Setpoints
menu, 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.
Breaker failure (BF)
The 32P element can produce the Breaker Failure output if the
P1>BF, P2>BF
parameters are set
to
ON.
The parameters are available inside the
Set \ Profi le A(or B) \ Directional active overpower
- 32P \
P1> Element (P2 > Element) \ Setpoints
menu.
[2]
All parameters can be set separately for A and B setting profi les.
Note 1 The exhaustive treatment of the logical block (Block 1) function may be found in the “Logic Block” paragraph inside
CONTROL AND MONITOR-
ING
section.
Note 2 The common settings concerning the Breaker failure protection are adjustable inside the
Breaker Failure - BF
menu.
P
P
1
>
t
t
P1
>
TRIP
P
1
>
TRIP
General operation time characteristic for the directional active power element - 32P
P
P
1
>
t
t
P1
>
TRIP
P
1
>
TRIP
General operation time characteristic for the directional active power element - 32P
General operation time characteristic for the directional active elements - 32P
1st Pickup Element
Block 1
Block 1
P
B F
P
1
> Start
P
1
> Trip
2nd Pickup Element
Block 1
Block 1
P
B F
P
2
> Start
P
2
> Trip
P1>DIR
P
1>def
t
P1
>def
P2>DIR
P
2>def
t
P2
>def
t
P1>RES
t
P2>RES
General operation time characteristic for the directional active elements - 32P
1st Pickup Element
Block 1
Block 1
P
B F
P
1
> Start
P
1
> Trip
2nd Pickup Element
Block 1
Block 1
P
B F
P
2
> Start
P
2
> Trip
P1>DIR
P
1>def
t
P1
>def
P2>DIR
P
2>def
t
P2
>def
t
P1>RES
t
P2>RES
P1> Start
P1> Trip
RESET
INPUT
t
P1>RES
t
P1>def
t
P1>def
t
P1>RES
t
P1>RES
t
P1> element directional active power timers - 32P
P1> Start
P1> Trip
RESET
INPUT
t
P1>RES
t
P1>def
t
P1>def
t
P1>RES
t
P1>RES
t
P1> element directional active power timers - 32P
