ABB ret650 - Technical Data

IEC05000301 V1 EN
Figure 49: Logic diagram for 1Ph High impedance differential protection
HZPDIF
6.3.8 Technical data
Table 48: HZPDIF technical data
Function
Range or value Accuracy
Operate voltage (20-400) V
I=U/R
± 1.0% of I
r
Reset ratio >95% -
Maximum continuous
power
U>Trip
2
/SeriesResistor ≤200 W
-
Operate time 10 ms typically at 0 to 10 x U
d
-
Reset time 100 ms typically at 10 to 0 x U
d
-
Critical impulse time 2 ms typically at 0 to 10 x U
d
-
Section 6 1MRK 504 135-UEN A
Differential protection
122
Technical manual