The value of k=0.92 is recommended in generator applications as the trip delay isnormally quite long.The calibration factors for current and voltage measurement errors are set % ofrated current/voltage:IAmpComp5, IAmpComp30, IAmpComp100UAmpComp5, UAmpComp30, UAmpComp100IAngComp5, IAngComp30, IAngComp100The angle compensation is given as difference between current and voltage angleerrors.The values are given for operating points 5, 30 and 100% of rated current/voltage.The values should be available from instrument transformer test protocols.8.14 Broken conductor check BRCPTOC SEMOD171761-1 v38.14.1 IdentificationSEMOD172362-2 v2Function description IEC 61850identificationIEC 60617identificationANSI/IEEE C37.2device numberBroken conductor check BRCPTOC - 468.14.2 Application SEMOD171858-5 v3Conventional protection functions can not detect the broken conductor condition.Broken conductor check (BRCPTOC) function, consisting of continuous currentunsymmetrical check on the line where the IED connected will give alarm or trip atdetecting broken conductors.8.14.3 Setting guidelines SEMOD171866-5 v4Broken conductor check BRCPTOC must be set to detect open phase/s (seriesfaults) with different loads on the line. BRCPTOC must at the same time be set tonot operate for maximum asymmetry which can exist due to, for example, nottransposed power lines.All settings are in primary values or percentage.Set IBase (given in GlobalBaseSel) to power line rated current or CT rated current.Set minimum operating level per phase IP> to typically 10-20% of rated current.Section 8 1MRK 511 401-UEN ACurrent protection214 Bay control REC670 2.2 IECApplication manual
