Functions
2.1 General
SIPROTEC, 7RW80, Manual
C53000-G1140-C233-1, Release date 10.2010
32
Trip and Close Command Duration (Breaker)
In address 210 the minimum trip command duration TMin TRIP CMD is set. This setting applies to all protec-
tion functions that can initiate tripping.
In address 211 the maximum close command duration TMax CLOSE CMD is set. It applies to the integrated
reclosing function. It must be set long enough to ensure that the circuit breaker has securely closed. An exces-
sive duration causes no problem since the closing command is interrupted in the event another trip is initiated
by a protection function.
Pickup Thresholds of the Binary Inputs (Thresholds BI)
At address 220 Threshold BI 1 to 226 Threshold BI 7 you can set the pickup thresholds of the binary
inputs of the device. The settings Thresh. BI 176V, Thresh. BI 88V or Thresh. BI 19V are possible.
Voltage Protection (Protection Operating Quantities)
In a three-phase connection, the fundamental harmonic of the three phase-to-phase voltages (Vphph) or
phase-ground voltages (Vph-n) or the positive sequence voltage (V1) or the negative sequence voltage (V2)
is supplied to the overvoltage protection elements.
In three-phase connection, undervoltage protection relies either on the positive sequence voltage (V1) or the
phase-to-phase voltages (Vphph) or the phase-to-ground voltages (Vph-n).
This is configured by setting the parameter value in address 614 OP. QUANTITY 59 and 615 OP. QUANTITY
27.
Via Parameter 5009 59 Phases and 5109 27 Phases you may configure which measured quantity is to be
evaluated ( or or ).
With single-phase voltage transformers, a direct comparison of the measured quantities with the threshold
values is carried out and the parameterization of the characteristic quantity switchover is ignored.
Note
If parameter 213 VT Connect. 3ph is set to Vph-g, VSyn, the voltage measured by voltage transformer 1
is always used for voltage protection. Then parameters 614 and 615 are not available.
Note
If parameter 213 VT Connect. 3ph is set to Vab, Vbc, VSyn or Vab, Vbc or Vab, Vbc, Vx, the setting
option Vph-n for parameter 614 and 615 is not available.
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