Technical Data - ABB REG650 Technical Manual

1MRK 502 043-UUS B
6.2.8
6.3
Technical Manual
AlarmPickup
AlarmPickup
ANSI05000301 V1 EN
Figure 44: Logic diagram for 1Ph High impedance differential protection HZPDIF
(87)

Technical data

Table 33: HZPDIF (87)technical data
Function
Operate voltage
Reset ratio
Maximum continuous
power
Operate time
Reset time
Critical impulse time
Generator differential protection GENPDIF (87G)
0-tAlarm
0
0.03s
0
Range or value
(20-400) V
I=V/R
>95%
V>Pickup 2 /SeriesResistor ≤200 W
10 ms typically at 0 to 10 x V
d
105 ms typically at 10 to 0 x V
2 ms typically at 0 to 10 x V
d
Differential protection
en05000301_ansi.vsd
Accuracy
± 1.0% of I
n
-
-
-
-
d
-
Section 6
113