IAmpComp5, IAmpComp30, IAmpComp100UAmpComp5, UAmpComp30, UAmpComp100IAngComp5, IAngComp30, IAngComp100The angle compensation is given as difference between current and voltage angle errors.The values are given for operating points 5, 30 and 100% of rated current/voltage. The valuesshould be available from instrument transformer test protocols.8.11 Broken conductor check BRCPTOC SEMOD171761-1 v38.11.1 IdentificationSEMOD172362-2 v2Function description IEC 61850identificationIEC 60617identificationANSI/IEEE C37.2device numberBroken conductor check BRCPTOC - 468.11.2 Application SEMOD171858-5 v3Conventional protection functions can not detect the broken conductor condition. Brokenconductor check (BRCPTOC) function, consisting of continuous current unsymmetrical checkon the line where the IED connected will give alarm or trip at detecting broken conductors.8.11.3 Setting guidelines SEMOD171866-5 v4Broken conductor check BRCPTOC must be set to detect open phase/s (series faults) withdifferent loads on the line. BRCPTOC must at the same time be set to not operate formaximum asymmetry which can exist due to, for example, not transposed power lines.All settings are in primary values or percentage.SetIBase (given inGlobalBaseSel) to power line rated current or CT rated current.Set minimum operating level per phaseIP> to typically 10-20% of rated current.Set the unsymmetrical current, which is relation between the difference of the minimum andmaximum phase currents to the maximum phase current to typicalIub> =50%.Note that it must be set to avoid problem with asymmetry under minimumoperating conditions.Set the time delaytOper =5 - 60 seconds and reset timetReset =0.010 - 60.000 seconds.1MRK 505 363-UEN A Section 8Current protection179Application manual
