Rockwell Automation 865 Differential Protection Relay - Manual (Page 23)

Local Panel User Interface 2-11
865-UM001A-EN-P – July 2009
T
HIRD MENU OF
I>> 50/51
STAGE
I>> LOG 50/51
2006-09-14
12:25:10.288
Type
Flt
Load
EDly
1-2
2.86xIgn
0.99xIgn
81%
ExDI
ExDO
Prot
CBWE
OBJ
I>>
FAULT LOG 1
SetGrp 1
Figure 2.10 – Third and Last Menu (next to the right) of I>>50/51 Stage
This is the menu for registered values by the I>> stage. Fault logs are
explained under “Fault Logs” on page 2-13.
• FAULT LOG 1 – This is the latest of the eight available logs.
You may move between the logs by pressing push buttons
ENTER and then RIGHT or LEFT.
• 2006-09-14 – Date of the log.
• 12:25:10.288 – Time of the log
• Type 1-2 – The overcurrent fault has been detected in phases L1
and L2 (A & B, red & yellow, R&S, u&v).
• Flt 2.86xIn – The fault current has been 2.86 per unit.
• Load 0.99xIn – The average load current before the fault has
been 0.99 pu.
• EDly 81% – The elapsed operation delay has been 81% of the
setting 0.60 s = 0.49 s. Any registered elapsed delay less than
100 % means that the stage has not tripped, because the fault
duration has been shorter than the delay setting.
• SetGrp 1 – The setting group has been 1. This line can be
reached by pressing ENTER and several times the DOWN
button.