10.21
Date Code 20171021 Instruction Manual SEL-421 Relay
Communications Interfaces
DNP3 Communication
30, 32 50 3DPF Three-phase displacement power factor
30, 32 51 DC1 DC Battery 1 voltage (V)
30, 32 52 DC2 DC Battery 2 voltage (V)
30, 32 53 FREQ Frequency (Hz)
30, 32 54, 55 MWHAIN, MWHAOUT A-Phase total energy in and out (MWh)
30, 32 56, 57 MWHBIN, MWHBOUT B-Phase total energy in and out (MWh)
30, 32 58, 59 MWHCIN, MWHCOUT C-Phase total energy in and out (MWh)
30, 32 60, 61 3MWHIN, 3MWHOUT Three-phase total energy in and out (MWh)
30, 32 62 IAD A-Phase demand current (amperes)
30, 32 63 IBD B-Phase demand current (amperes)
30, 32 64 ICD C-Phase demand current (amperes)
30, 32 65 3I2D Demand negative-sequence current (amperes)
30, 32 66 IGD Demand zero-sequence current (amperes)
30, 32 67–69 PAD, PBD, PCD A-Phase, B-Phase, and C-Phase demand power (MW)
30, 32 70 3PD Three-phase demand power (MW)
30, 32 71 IAPKD Peak A-Phase demand current (amperes)
30, 32 72 IBPKD Peak B-Phase demand current (amperes)
30, 32 73 ICPKD Peak C-Phase demand current (amperes)
30, 32 74 IGPKD Peak zero-sequence demand current (amperes)
30, 32 75 3I2PKD Peak negative-sequence demand current (amperes)
30, 32 76 PAPKD A-Phase peak demand power (MW)
30, 32 77 PBPKD B-Phase peak demand power (MW)
30, 32 78 PCPKD C-Phase peak demand power (MW)
30, 32 79 3PPKD Three-phase peak demand power (MW)
30, 32 80–82 B1BCWPA, B1BCWPB,
B1BCWPC
Circuit Breaker 1 contact wear percentage multiplied by 100
30, 32 83–85 B2BCWPA, B2BCWPB,
B2BCWPC
Circuit Breaker 2 contact wear percentage multiplied by 100
30, 32 86 FTYPE Fault type (Table 10.12 and Table 10.13)
30, 32 87 FTAR1 Fault targets (upper byte is 1st target row, lower byte is 2nd target row)
30, 32 88 FTAR2 Fault targets (upper byte is 3rd target row, lower byte is 0)
30, 32 89 FSLOC Fault summary location
30, 32 90 FCURR Fault current
30, 32 91 FFREQ Fault frequency (Hz)
30, 32 92 FGRP Fault settings group
30, 32 93–95 FTIMEH, FTIMEM, FTIMEL Fault time in DNP3 format (high, middle, and low 16 bits)
30, 32 96 FSHOT1 Recloser single-pole reclose count
30, 32 97 FSHOT2 Recloser three-pole reclose count
30, 32 98 FUNR Number of unread fault summaries
30, 32 99 SHOT3_T Total number of three pole reclosing shots issued
30. 32 100 RLYTEMP Relay internal temperature (degrees C)
Table 10.14 SEL-421 DNP3 Default Data Map (Sheet 6 of 7)
Object Default Index Label Description