9.10.3 Setting guidelines
M13274-3 v8
The parameters for the Pole discordance protection CCPDSC are set via the local
HMI or PCM600.
The following settings can be done for the pole discordance protection.
GlobalBaseSel: Selects the global base value group used by the function to define
IBase, UBase and SBase as applicable.
Operation: Off or On
tTrip: Time delay of the operation.
ContSel: Operation of the contact based pole discordance protection. Can be set:
Off/PD signal from CB. If PD signal from CB is chosen the logic to detect pole
discordance is made in the vicinity to the breaker auxiliary contacts and only one
signal is connected to the pole discordance function. If the Pole pos aux cont.
alternative is chosen each open close signal is connected to the IED and the logic to
detect pole discordance is realized within the function itself.
CurrSel: Operation of the current based pole discordance protection. Can be set:
Off/CB oper monitor/Continuous monitor. In the alternative CB oper monitor the
function is activated only directly in connection to breaker open or close command
(during 200 ms). In the alternative Continuous monitor function is continuously
activated.
CurrUnsymLevel: Unsymmetrical magnitude of lowest phase current compared to
the highest, set in % of the highest phase current. Natural difference between phase
currents in 1 1/2 breaker installations must be considered. For circuit breakers in 1
1/2 breaker configured switch yards there might be natural unbalance currents
through the breaker. This is due to the existence of low impedance current paths in
the switch yard. This phenomenon must be considered in the setting of the
parameter.
CurrRelLevel: Current magnitude for release of the function in % of IBase.
9.11 Directional underpower protection GUPPDUP
SEMOD156693-1 v4
9.11.1 Identification
SEMOD158941-2 v4
Function description
IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Directional underpower protection GUPPDUP
SYMBOL-LL V2 EN-US
37
Section 9 1MRK 506 369-UEN B
Current protection
514 Line distance protection REL670 2.2 IEC
Application manual
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