Contents
Chapter 9 Establishing connection and verifying
the LON communication ............................................. 59
The LON Protocol......................................................................... 61
Hardware and software modules.................................................. 61
Chapter 10 Configuring the IED and changing settings ............... 65
Overview............................................................................................ 66
Entering settings through the local HMI............................................. 67
Analog input data............................................................................... 68
Configuration for analog CT inputs............................................... 68
Downloading settings and configuration from a PC........................... 69
Downloading the configuration and setting files ........................... 69
Chapter 11 Verifying settings by secondary injection ................. 71
Overview............................................................................................ 72
Preparing for test ............................................................................... 74
Overview....................................................................................... 74
Preparing the connection to the test equipment ........................... 74
Putting the IED into test mode...................................................... 75
Connecting test equipment to the IED.......................................... 75
Verifying the connections and the analog inputs .......................... 76
Releasing the function(s) to be tested.......................................... 77
Disturbance report........................................................................ 78
Identifying the function to test in the technical reference manual 79
Exit test mode............................................................................... 79
Basic IED functions............................................................................ 80
Parameter setting groups (ACGR)................................................ 80
Differential protection......................................................................... 81
High impedance differential protection (PDIF, 87)........................ 81
Distance protection............................................................................ 82
Distance protection zones (PDIS, 21)........................................... 82
Phase selection with load enchroachment (PDIS, 21).................. 87
Power swing detection (RPSB, 78)............................................... 97
Automatic switch onto fault logic (PSOF) ................................... 102
Current protection............................................................................ 103
Instantaneous phase overcurrent protection (PIOC, 50) ........... 103
Four step phase overcurrent protection (POCM, 51/67)............. 103
Instantaneous residual overcurrent protection (PIOC, 50N) ...... 105
Four step residual overcurrent protection (PEFM, 51N/67N) ..... 105
Four step residual overcurrent function. ..................................... 106
Thermal overload protection, one time constant (PTTR, 26)...... 107
Breaker failure protection (RBRF, 50BF).................................... 108
Stub protection (PTOC, 50STB) ................................................. 113
Pole discordance protection (RPLD, 52PD) ............................... 115
Voltage protection............................................................................ 117
Two step undervoltage protection (PUVM, 27)........................... 117