701 Motor Protection Relay Date Code 20010719
Event Analysis
Event Reports
9.10
Table 9.5 Outpu t, Input, and E lement Event R eport Columns
Table 9.5
Output, Input, and
Element Event Report Columns
Column
Heading
Symbol
Definition
All columns • Element/input/output not picked up or not asserted.
S Motor starting.
R Motor running.
Motor
• Motor stopped.
J Load Jam Trip picked up.
l Load Loss Alarm picked up.
Load
L Load Loss Trip picked up.
A Current Unbalance Alarm picked up. 46
T
Current Unbalance Trip picked up.
47 T Phase Reversal Trip.
49 A Thermal Element Alarm picked up.
T Thermal Element Trip picked up.
50 O/C Q
Negative-Sequence Definite-Time Overcurrent Element
picked up and time delay expired.
1
Level 1 Phase Definite-Time Overcurrent
Element picked up and time delay expired.
2
Level 2 Phase Definite-Time Overcurrent
Element picked up and time delay expired.
b Both Level 1 and Level 2 Phase Overcurrent
Elements picked up and time delays expired.
50G O/C 1
Level 1 Residual Overcurrent
Element picked up and time delay expired.
2
Level 2 Residual Overcurrent
Element picked up and time delay expired.
b
Both Level 1 and Level 2 Residual Overcurrent
Elements picked up and time delays expired.
(Continued)