7.47
Date Code 20080213 Instruction Manual SEL-351A Relay
Inputs, Outputs, Timers, and Other Control Logic
Rotating Default Display (Only on Models With LCD)
Additional Format for
Displaying Time-
Overcurrent Elements
on the Rotating
Default Display
To set the description and the control string of time-overcurrent element on
one display point, use the following SET T format:
DPi_j = XXX;;[;]ABCDE;YYY
Table 7.10 Mnemonic Settings for Time-Overcurrent (TOC) Element Pickups on the Rotating Default Display
Mnemonic Display Description
51AP xxxxxxx. xx A pr i pickup for phase TOC element 51AT
51BP xxxxxxx . xx A pr i pickup for phase TOC element 51BT
51CP xxxxxxx . xx A pr i pickup for phase TOC element 51CT
51PP xxxxxxx. xx A pr i pickup for phase TOC element 51PT
51GP xxxxxxx. xx A pr i pickup for residual-ground TOC element 51GT
51G2P xxxxxxx. xx A pr i pickup for second residual-ground TOC element
51G2T
a
51QP xxxxxxx. xx A pr i pickup for negative-sequence TOC element 51QT
51NP xxxxxxx. xx A pr i pickup for neutral-ground TOC element 51NT
a
Not in SEL-351A-1.
where:
i = a display point number from 1–16
j = either 1 or 0 (logic high or low)
XXX = an optional pre-label consisting of any characters that you
want to add for labeling the setting value
[;] signifies an optional “,” for the”;;;” control string to make
more characters available for labeling purposes.
The label character count is the sum of the characters used
in the pre- and post-labels. (For example, three characters
at the beginning and three characters at the end of the
string equal six total characters used for labeling.)
ABCDE = a relay setting variable from the table below.
YYY = an optional post-label, preceded by a single semicolon (;)
character. If no trailing semicolon and label text is added,
the relay does not display a post-setting label. Refer to
Table 7.11 to determine the maximum characters allowed
for use in pre-/post-label text.
Table 7.11 Mnemonic Settings for Time-Overcurrent (TOC) Element Pickups
Using the Same-Line-Label Format on the Rotating Default Display
(Sheet 1 of 2)
SET T
Setting Variable
Displays Relay
Setting Value
Display Format/
Resolution
Maximum Label
Characters
;;51AP 51AP xxxxxxx.xx 6
;;51BP 51BP xxxxxxx.xx 6
;;51CP 51CP xxxxxxx.xx 6
;;51PP 51PP xxxxxxx.xx 6
;;51GP 51GP xxxxxxx.xx 6
;;51G2P 51G2P
a
xxxxxxx.xx 6
;;51QP 51QP xxxxxxx.xx 6
;;51NP 51NP xxxxxxx.xx 6
;;;000 51AP xxxxxxx 9
;;;001 51BP xxxxxxx 9
Courtesy of NationalSwitchgear.com
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