GE 489 - Manual (Page 150)

5-18 489 Generator Management Relay GE Multilin
5.4 A3 LEARNED DATA 5 ACTUAL VALUES
5
5.4A3 LEARNED DATA 5.4.1 PARAMETER AVERAGES
PATH: ACTUAL VALUES ÖØ A3 LEARNED DATA Ö PARAMETER AVERAGES
The 489 calculates the average magnitude of several parameters over a period of time. This time is specified by S1 489
SETUP ÖØ PREFERENCES ÖØ PARAMETER AVERAGES CALC. PERIOD setpoint (default 15 minutes). The calculation is a slid-
ing window and is ignored when the generator is offline (that is, the value that was calculated just prior to going offline will
be held until the generator is brought back online and a new calculation is made). Parameter averages will not update if a
digital input programmed as Test Input is shorted.
5.4.2 RTD MAXIMUMS
PATH: ACTUAL VALUES ÖØ A3 LEARNED DATA ÖØ RTD MAXIMUMS
The 489 will learn the maximum temperature for each RTD. This information can be cleared using the S1 489 SETUP ÖØ
CLEAR DATA ÖØ CLEAR RTD MAXIMUMS setpoint. The RTD maximums will not update if a digital input programmed as Test
Input is shorted. If no RTDs are programmed in the S7 RTD TEMPERATURE setpoints page, the THIS FEATURE NOT PRO-
GRAMMED flash message will appear when an attempt is made to enter this group of messages.
„ PARAMETER AVERAGES
„ [ENTER] for more
AVERAGE GENERATOR
LOAD: 100% FLA
Range: 0 to 2000% FLA
AVERAGE NEG. SEQ.
CURRENT: 0% FLA
Range: 0 to 2000% FLA
AVERAGE PHASE-PHASE
VOLTAGE: 0 V
Range: 0 to 50000 V. Not seen if VT CONNECTION is
programmed as None
„ RTD MAXIMUMS
„ [ENTER] for more
RTD #1
MAX. TEMP.: 40°C
Range: –50 to 250°C. Not seen if RTD programmed as
None. The first line of this message reflects the
RTD Name as programmed.
RTD #2
MAX. TEMP.: 40°C
Range: as for RTD #1 above
RTD #3
MAX. TEMP.: 40°C
Range: as for RTD #1 above
RTD #4
MAX. TEMP.: 40°C
Range: as for RTD #1 above
RTD #5
MAX. TEMP.: 40°C
Range: as for RTD #1 above
RTD #6
MAX. TEMP.: 40°C
Range: as for RTD #1 above
RTD #7
MAX. TEMP.: 40°C
Range: as for RTD #1 above
RTD #8
MAX. TEMP.: 40°C
Range: as for RTD #1 above
RTD #9
MAX. TEMP.: 40°C
Range: as for RTD #1 above
RTD #10
MAX. TEMP.: 40°C
Range: as for RTD #1 above
RTD #11
MAX. TEMP.: 40°C
Range: as for RTD #1 above
RTD #12
MAX. TEMP.: 40°C
Range: as for RTD #1 above
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