9.10.3 Setting guidelines M13274-3 v8The parameters for the Pole discordance protection CCPDSC are set via the localHMI 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 defineIBase, UBase and SBase as applicable.Operation: Off or OntTrip: 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 polediscordance is made in the vicinity to the breaker auxiliary contacts and only onesignal 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 todetect 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 thefunction is activated only directly in connection to breaker open or close command(during 200 ms). In the alternative Continuous monitor function is continuouslyactivated.CurrUnsymLevel: Unsymmetrical magnitude of lowest phase current compared tothe highest, set in % of the highest phase current. Natural difference between phasecurrents in 1 1/2 breaker installations must be considered. For circuit breakers in 11/2 breaker configured switch yards there might be natural unbalance currentsthrough the breaker. This is due to the existence of low impedance current paths inthe switch yard. This phenomenon must be considered in the setting of theparameter.CurrRelLevel: Current magnitude for release of the function in % of IBase.9.11 Directional underpower protection GUPPDUP SEMOD156693-1 v49.11.1 IdentificationSEMOD158941-2 v4Function description IEC 61850identificationIEC 60617identificationANSI/IEEE C37.2device numberDirectional underpower protection GUPPDUPP <2SYMBOL-LL V2 EN-US37Section 9 1MRK 506 369-UEN BCurrent protection514 Line distance protection REL670 2.2 IECApplication manual
