ABB Relion 670 series - Generator Differential Protection GENPDIF (87 G); Technical Data

AlarmPickup
AlarmPickup
0-tAlarm
0
0.03s
0
en05000301_ansi.vsd
ANSI05000301 V1 EN-US
Figure 49: Logic diagram for 1Ph High impedance differential protection HZPDIF (87)
6.2.8 Technical data
IP14246-1 v1
M13081-1 v12
Table 63: HZPDIF (87)technical data
Function Range or value Accuracy
Trip voltage (10-900) V
I=V/R
±1.0% of I
n
at I < I
n
±1.0% of I at I > I
n
Reset ratio >95% at (30-900) V -
Maximum continuous power
V>Pickup
2
/SeriesResistor ≤200 W
-
Trip time at 0 to 10 x V
d
Min. = 5 ms
Max. = 15 ms
Reset time at 10 x V
d
to 0 Min. = 75 ms
Max. = 95 ms
Critical impulse time 2 ms typically at 0 to 10 x V
d
-
Trip time at 0 to 2 x V
d
Min. = 25 ms
Max. = 35 ms
Reset time at 2 x V
d
to 0 Min. = 50 ms
Max. = 70 ms
Critical impulse time 15 ms typically at 0 to 2 x V
d
-
6.3 Generator differential protection GENPDIF (87G)
SEMOD156679-1 v3
Section 6 1MRK 502 066-UUS B
Differential protection
148
Technical manual