10.12
SEL-421 Relay Instruction Manual Date Code 20171021
Communications Interfaces
DNP3 Communication
30, 32 PBPKD
e
B-Phase peak demand power (MW)
30, 32 PCPKD
e
C-Phase peak demand power (MW)
30, 32 3PPKD
e
Three-phase peak demand power (MW)
30, 32 QAPKD
e
A-Phase peak demand reactive power (MW)
30, 32 QBPKD
e
B-Phase peak demand reactive power (MW)
30, 32 QCPKD
e
C-Phase peak demand reactive power (MW)
30, 32 3QPKD
e
Three-phase peak reactive power (MW)
30, 32 UAPKD
e
A-Phase peak demand phase apparent power (MW)
30, 32 UBPKD
e
B-Phase peak demand phase apparent power (MW)
30, 32 UCPKD
e
C-Phase peak demand phase apparent power (MW)
30, 32 3UPKD
e
Three-phase peak demand apparent power (MW)
30, 32 IAD
c
A-Phase demand current (amperes)
30, 32 IBD
c
B-Phase demand current (amperes)
30, 32 ICD
c
C-Phase demand current (amperes)
30, 32 3I2D
c
Demand negative-sequence current (amperes)
30, 32 IGD
c
Demand zero-sequence current (amperes)
30, 32 PAD, PBD, PCD
e
A-Phase, B-Phase, and C-Phase demand power (MW)
30, 32 3PD
e
Three-phase demand power (MW)
30, 32 QAD, QBD, QCD
e
A-Phase, B-Phase, and C-Phase demand reactive power (MW)
30, 32 3QD
e
Three-phase demand reactive power (MW)
30, 32 UAD, UBD, UCD
e
A-Phase, B-Phase, and C-Phase demand apparent power (MW)
30, 32 3UD
e
Three-phase demand apparent power (MW)
30, 32 MWHAIN, MWHAOUT
e
A-Phase total energy in and out (MWh)
30, 32 MWHBIN, MWHBOUT
e
B-Phase total energy in and out (MWh)
30, 32 MWHCIN, MWHCOUT
e
C-Phase total energy in and out (MWh)
30, 32 MWHAT
c
Total A-Phase energy (MWh)
30, 32 MWHBT
c
Total B-Phase energy (MWh)
30, 32 MWHCT
c
Total C-Phase energy (MWh)
30, 32 3MWHIN, 3MWHOUT
e
Three-phase total energy in and out (MWh)
30, 32 3MWH3T
c
Total three-phase energy (MWh)
30, 32 PMV001–PMV064
g
Protection SELOGIC math variables
30, 32 AMV001–AMV256
g
Automation SELOGIC math variables
30, 32 B1BCWPA, B1BCWPB,
B1BCWPC
g
Circuit Breaker 1 contact wear percentage multiplied by 100
30, 32 B2BCWPA, B2BCWPB,
B2BCWPC
g
Circuit Breaker 2 contact wear percentage multiplied by 100
30, 32 FREQ
f
Frequency (Hz)
30, 32 FREQP
f
Frequency for under- and overfrequency elements (Hz)
30, 32 FREQPM
f
Frequency for synchrophasor data (Hz)
30, 32 DFDTP
f
Rate-of-change of frequency (Hz/s)
30, 32 DFDTPM
f
Rate-of-change of frequency for synchrophasor data (Hz/s)
30, 32 TODMS
g
UTC time of day in milliseconds (0–86400000)
Table 10.10 SEL-421 DNP3 Reference Data Map (Sheet 4 of 6)
Object Label Description