Table 273: CCPDSC (52PD) Non group settings (basic)
Name Values (Range) Unit Step Default Description
GlobalBaseSel 1 - 12 - 1 1 Selection of one of the Global Base Value
groups
8.10.6 Monitored data
PID-3525-MONITOREDDATA v4
Table 274: CCPDSC (52PD) Monitored data
Name Type Values (Range) Unit Description
IMin REAL - A Lowest phase current
IMax REAL - A Highest phase current
8.10.7 Operation principle
M13273-3 v6
The detection of pole discrepancy can be made in two different ways. If the contact based
function is used an external logic can be made by connecting the auxiliary contacts of the circuit
breaker so that a pole discrepancy is indicated, see figure 285.
ANSI_en05000287.vsd
poleDiscrepancy Signal from C.B.
+
C.B.
52b
52b
52b
52a
52a
52a
ANSI05000287 V1 EN-US
Figure 285: Pole discrepancy external detection logic
This binary signal is connected to a binary input of the IED. The appearance of this signal will
pickup a timer that will give a trip signal after the set time delay.
There is also a possibility to connect all phase selective auxiliary contacts (phase contact open and
phase contact closed) to binary inputs of the IED, see figure
286.
1MRK 502 066-UUS B Section 8
Current protection
539
Technical manual
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