ABB RELION REX640 - 4.7.1.4 Analog channel configuration

Figure 524: Average operate time of DSTPDIS according to IEC 60255-121 network
models Short line and Long line (50 Hz)
SIR curves are plotted from the data which includes variation of fault location (0…
100% of zone reach, 5% step), fault type (LN, LL, LLN, LLL) and fault inception angle
(0, 30, 60, 90 degrees). Each combination has been repeated ten times giving the
total number of 26880 shots. The operate times include the delay of relay output
contacts. The SIR curves presented in Figure 524 were obtained using the static
power outputs (SPOs) and with Zone timer mode = "common".
4.7.1.4 Analog channel configuration
DSTPDIS has five analog group inputs which must be properly configured.
Table 904: Analog inputs
Input Description
I3P Three-phase currents
I3P_PAR
1
Three-phase currents
Necessary when Par line Comp zone x is set
to True
I3P_REF
2
Three-phase currents
Table continues on the next page
1
Can be connected to GRPOFF if Par line Comp zone x is set to False.
2
Can be connected to GRPOFF if EF detection Mod GFC is not set to "Io AND IoRef"
1MRS759142 F Protection functions
REX640
Technical Manual
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