4–36 489 GENERATOR MANAGEMENT RELAY – INSTRUCTION MANUAL
CHAPTER 4: INTERFACES
Z Click on the Phasors tab.
The EnerVista 489 Setup software will display the following window:
Z Press the “View” button to display the following window:
The 489 Generator Management Relay was designed to display lagging angles. Therefore,
if a system condition would cause the current to lead the voltage by 45°, the 489 relay will
display such angle as 315° Lag instead of 45° Lead.
VOLTAGE VECTORS
Assigned to Phasor
Set 1, Graph 1
CURRENT VECTORS
Assigned to Phasor
Set 2, Graph 2
CURRENT LEVEL
Displays the value
and angle of the
current phasor
VOLTAGE LEVEL
Displays the value
and the angle of
the voltage phasors
Courtesy of NationalSwitchgear.com
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