Schweitzer Engineering Laboratories SEL-352-1 - Metering; Multiple Setting Groups; Data Recording Specifications; Breaker Monitor Reporting

1-16 Introduction and Specifications Date Code 20010731
SEL-352-1, -2 Instruction Manual
Metering
VAX A-Phase Voltage for the X-Side ac inputs
VBX B-Phase Voltage for the X-Side ac inputs
VCX C-Phase Voltage for the X-Side ac inputs
VAY A-Phase Voltage for the Y-Side ac inputs
VBY B-Phase Voltage for the Y-Side ac inputs
VCY C-Phase Voltage for the Y-Side ac inputs
Units ..................................................................................................... kilovolts (kV) primary
Accuracy.....................................................................................................±0.67 V secondary
IA A-Phase current ac input
IB B-Phase current ac input
IC C-Phase current ac input
Units ........................................................................................................... Amps (A) primary
Accuracy.................................................................................. ±0.05 A secondary (I
nom
= 5 A)
................................................................................................. ±0.01 A secondary (I
nom
= 1 A)
Multiple Setting Groups
SS1 Setting group selection input 1
SS2 Setting group selection input 2
Number of setting groups .......................................................................................................3
Setting group change delay ................................TGR setting and up to 3 seconds uncertainty
DATA RECORDING SPECIFICATIONS
Event Records
MER Event Report Trigger
pickup accuracy...................................................................................... 0.000 to 0.125 cycles
number of events ...................................................... 600
 LER setting (15, 30, or 60 cycles)
SER1 Sequential-Event-Recorder Trigger List 1
SER2 Sequential-Event-Recorder Trigger List 2
SER3 Sequential-Event-Recorder Trigger List 3
pickup accuracy...................................................................................... 0.000 to 0.125 cycles
number of trigger elements......................................................................... 24 per list, 72 total
number of events displayed ................................................................................................512
Breaker Monitor Reporting
electrical operate time units................................................................................................. ms
mechanical operate time units ............................................................................................. ms
energy units .......................................................................................................... MJ, primary
current units............................................................................................................ A, primary
breaker contact wear (SEL-352-2 Relay only) ..................................................................... %
number of operations displayed..........................................................................................512
other relay elements determine accuracy