27. Functions, codes and symbolsTable 59. RED615 Functions, codes and symbolsFunctionality IEC 61850 IEC 60617 IEC-ANSIProtectionThree-phase non-directionalovercurrent protection, low stage,instance 1PHLPTOC1 3I> (1) 51P-1 (1)Three-phase non-directionalovercurrent protection, high stage,instance 1PHHPTOC1 3I>> (1) 51P-2 (1)Three-phase non-directionalovercurrent protection, high stage,instance 2PHHPTOC2 3I>> (2) 51P-2 (2)Three-phase non-directionalovercurrent protection, instantaneousstage, instance 1PHIPTOC1 3I>>> (1) 50P/51P (1)Non-directional earth-fault protection,low stage, instance 1 EFLPTOC1 I0> (1) 51N-1 (1)Non-directional earth-fault protection,low stage, instance 2 EFLPTOC2 I0> (2) 51N-1 (2)Non-directional earth-fault protection,high stage, instance 1 EFHPTOC1 I0>> (1) 51N-2 (1)Non-directional earth-fault protection,high stage, instance 2 EFHPTOC2 I0>> (2) 51N-2 (2)Non-directional earth-fault protection,instantaneous stage EFIPTOC1 I0>>> 50N/51NDirectional earth-fault protection, lowstage, instance 1 DEFLPDEF1 I0> → (1) 67N-1 (1)Directional earth-fault protection, lowstage, instance 2 DEFLPDEF2 I0> → (2) 67N-1 (2)Directional earth-fault protection,high stage DEFHPDEF1 I0>> → 67N-2Transient / intermittent earth-faultprotection INTRPTEF1 I0> → IEF 67NIEFNon-directional (cross-country) earthfault protection, using calculated I0EFHPTOC1 I0>> 51N-2Negative-sequence overcurrentprotection, instance 1 NSPTOC1 I2> (1) 46 (1)Line Differential Protection and Control 1MRS756500 BRED615Product version: 2.0 Issued: 03.07.200954 ABB