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GE Multilin 489 Generator Management Relay 4-75
4 SETPOINTS 4.12 S11 ANALOG I/O
4
4.12S11 ANALOG I/O 4.12.1 ANALOG OUTPUTS 1 TO 4
PATH: SETPOINTS ÖØ S11 ANALOG I/O Ö ANALOG OUTPUT 1(4)
The 489 has four analog output channels (4 to 20 mA or 0 to 1 mA as ordered). Each channel may be individually config-
ured to represent a number of different measured parameters as shown in the table below. The minimum value pro-
grammed represents the 4 mA output. The maximum value programmed represents the 20 mA output. All four of the
outputs are updated once every 50 ms. Each parameter may only be used once.
The analog output parameter may be chosen as Real Power (MW) for a 4 to 20 mA output. If rated power is 100 MW, the
minimum is set for 0.00 × Rated, and the maximum is set for 1.00 × Rated, the analog output channel will output 4 mA
when the real power measurement is 0 MW. When the real power measurement is 50 MW, the analog output channel will
output 12 mA. When the real power measurement is 100 MW, the analog output channel will output 20 mA.
ANALOG OUTPUT 1
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ANALOG OUTPUT 1:
Real Power (MW)
Range: See Table 4–8: Analog Output Parameter
Selection on page 4–76.
REAL POWER (MW)
MIN: 0.00 x Rated
Range: 0.00 to 2.00 × Rated in steps of 0.01
REAL POWER (MW)
MAX: 1.25 x Rated
Range: 0.00 to 2.00 × Rated in steps of 0.01
ANALOG OUTPUT 2
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ANALOG OUTPUT 2:
Apparent Power (MVA)
Range: See Table 4–8: Analog Output Parameter
Selection on page 4–76.
APPARENT POWER (MVA)
MIN: 0.00 x Rated
Range: 0.00 to 2.00 × Rated in steps of 0.01
APPARENT POWER (MVA)
MAX: 1.25 x Rated
Range: 0.00 to 2.00 × Rated in steps of 0.01
ANALOG OUTPUT 3
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ANALOG OUTPUT 3:
Avg. Output Current
Range: See Table 4–8: Analog Output Parameter
Selection on page 4–76.
AVG. OUTPUT CURRENT
MIN: 0.00 x FLA
Range: 0.00 to 20.00 × Rated in steps of 0.01
AVG. OUTPUT CURRENT
MAX: 1.25 x FLA
Range: 0.00 to 20.00 × Rated in steps of 0.01
ANALOG OUTPUT 4
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ANALOG OUTPUT 4:
Average Voltage
Range: See Table 4–8: Analog Output Parameter
Selection on page 4–76.
AVERAGE VOLTAGE
MIN: 0.00 x Rated
Range: 0.00 to 1.50 × Rated in steps of 0.01
AVERAGE VOLTAGE
MAX: 1.25 x Rated
Range: 0.00 to 1.50 × Rated in steps of 0.01
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