Current and voltage columns, Serialized events recording (ser) report, Ser triggering – Rockwell Automation 825-P Modular Protection System for Motors User Manual User Manual
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Rockwell Automation Publication 825-UM004D-EN-P - November 2012
Chapter 8 Analyzing Events
Current and Voltage Columns
Table 49 summarizes the event summary report current and voltage columns.
Serialized Events
Recording (SER) Report
SER Triggering
The 825-P relay stores an entry in the SER report for a change of state of any
one of the elements listed in Table 112 on page 235 and Table 113 on page 238.
The relay saves up to 512 records in nonvolatile memory.
The relay adds the following message to the SER to indicate power up or settings
change conditions:
•
Relay newly powered up or settings changed
•
Each entry in the SER includes SER row number, date, time, element
name, and element state
Table 49 - Event Report Current and Voltage Columns
Column Heading
Definition
L1
Current measured by channel L1 (primary A)
L2
Current measured by channel L2 (primary A)
L3
Current measured by channel L3 (primary A)
RES
Residual current (L1 + L2 + L3, primary A)
CB
Current measured by channel IN (primary A)
VAN or VAB
Voltage measured by channel VAN or VAB (primary V)
VBN or VBC
Voltage measured by channel VBN or VBC (primary V)
VCN or VCA
Voltage measured by channel VCN or calculated from VAB and VBC (primary V)
VG
Zero-sequence voltage (VAN + VBN + VCN, primary V)