VAMP 259 - Page 109

Technical description
2 Protection functions
2.16 Reverse power and underpower
protection P< (32)
VM259.EN007
VAMP 24h support phone +358 (0)20 753 3264
109
Setting parameters of P< and P<< stages:
Parameter
Value
Unit
Default
Description
P<, P<<
-200.0 ... 200.0
%Sn
-4.0 (P<),
-20.0(P<<)
P<,P<< pick-up
setting
t<
0.3 … 300.0
s
1.0
P<, P<<
operational delay
S_On
Enabled;
Disabled
-
Enabled
Start on event
S_Off
Enabled;
Disabled
-
Enabled
Start off event
T_On
Enabled;
Disabled
-
Enabled
Trip on event
T_Off
Enabled;
Disabled
-
Enabled
Trip off event
Measured and recorded values of P< and P<< stages:
Parameter
Value
Unit
Description
Measured
value
P
kW
Active power
Recorded
values
SCntr
-
Start counter
(Start) reading
TCntr
-
Trip counter (Trip)
reading
Flt
%Sn
Max value of fault
EDly
%
Elapsed time as
compared to the set
operating time,
100% = tripping