7.44
SEL-351A Relay Instruction Manual Date Code 20080213
Inputs, Outputs, Timers, and Other Control Logic
Rotating Default Display (Only on Models With LCD)
For example: in a delta-connected relay (PTCONN = DELTA), if the
following is entered:
DP1_0 = ::VA
DP2_0 = ::VAB
DP1 = 0
DP2 = 0
Then the front-panel displays:
in sequence with any other defined display points and the default screens.
Extra Details for Displaying Breaker Wear Monitor Quantities on the
Rotating Default Display
Table 7.9 lists all the available breaker wear monitor values that rotate on the
default display, subject to the number of available display points. Refer to
Section 8: Breaker Monitor and Metering for more information about the
breaker monitor function.
This example demonstrates use of the rotating display to show breaker wear
monitor quantities automatically on the rotating default display. This example
will set the EXTTR, INTTR, INTIA, EXTIA, and WEARA to display in the
rotating default display.
Set the following:
MVRH3I M V A Rh 3 I=xx . xxx three-phase megavar-hours in
MVRH3O M V A R h 3 O = x x . x x x three-phase megavar-hours out
a
Delta-connected relays do not respond to VA, VB, VC, 3V0, MWA, MWB, MWC, MVARA, MVARB, MVARC, PFA, PFB, PFC, MWADI, MWAPI,
MWBDI, MWBPI, MWCDI, MWCPI, MVRADI, MVRAPI, MVRBDI, MVRBPI, MVRCDI, MVRCPI, MWADO, MWAPO, MWBDO, MWBPO, MWCDO,
MWCPO, MVRAPO, MVRADO, MVRBPO, MVRBDO, MVRCPO, MVRCDO, MWHAI, MWHAO, MWHBI, MWHBO, MWHCI, MWHCO, MVRHAI,
MVRHAO, MVRHBI, MVRHBO, MVRHCI, MVRHCO display point settings.
Table 7.8 Mnemonic Settings for Metering on the Rotating Default Display (Sheet 4 of 4)
Mnemonic Display Description
::VA
VAB= 34.76kV 0˚
SET T SET L
DP1_0 = ::EXTTR DP1 = 0
DP2_0 = ::INTTR DP2 = 0
DP3_0 = ::INTIA DP3 = 0
DP4_0 = ::EXTIA DP4 = 0
DP5_0 = ::WEARA DP5 = 0
Courtesy of NationalSwitchgear.com
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