Dual Setpoints - GE Multilin 489 Instruction Manual

5.4.7

Dual Setpoints

DUAL
2 SETPOINTS [ ] 2 SETPOINTS
S5 CURRENT ELEM.
2 OVERCURRENT [ ] 2 UNDERVOLTAGE
ALARM
2 OFFLINE [ ] 2 OVERVOLTAGE
OVERCURRENT
2 INADVERTENT [ ] 2 VOLTS/HERTZ
ENERGIZATION
2 PHASE [ ] 2 PHASE
OVERCURRENT
2 NEGATIVE [ ] 2 UNDERFREQUENCY[ ]
SEQUENCE
2 GROUND [ ] 2 OVERFREQUENCY [ ]
OVERCURRENT
2 NEUTRAL
2 PHASE [ ]
DIFFERENTIAL
(Fund)
2 NEUTRAL U/
2 GROUND [ ]
V
DIRECTIONAL
2 HIGH-SET [ ] 2 LOSS
PHASE OVERCURRENT
2 DISTANCE
5–24
Courtesy of NationalSwitchgear.com
PATH: SETPOINTS S3 DIGITAL INPUTS
ASSIGN DIGITAL
[ ] INPUT: None
ACTIVATE SETPOINT
MESSAGE
GROUP: Group 1
EDIT SETPOINT
MESSAGE
GROUP: Group 1
If an input is assigned to the tachometer function, it may not be used here.
This feature allows for dual settings for the current, voltage, power, RTD, and thermal
model protection elements (setpoint pages S5 to S9). These settings are organized in two
setpoint groups: the main group (Group 1) and the alternate group (Group 2). Only one
group of settings are active in the protection scheme at a time.
When accessing the Group 2 setpoints, the block character ( ) for the setpoints menu
header will be replaced by the number two (2) as indicated below.
The following chart illustrates the available Group 2 (alternate group) setpoints
[ ] 2 SETPOINTS
S6 VOLTAGE ELEM. S7 POWER ELEMENTS
[ ] 2 REACTIVE
POWER
[ ] 2 REVERSE
POWER
[ ] 2 LOW
FORWARD POWER
[ ]
REVERSAL
[ ]
OVERVOLTAGE
[ ]
(3rd HARMONIC)
[ ]
OF EXCITATION
[ ]
ELEMENT
CHAPTER 5: SETPOINTS
DUAL SETPOINTS
Range: None, Input 1, Input 2, Input 3,
Input 4, Input 5, Input 6, Input 7
Range: Group 1, Group 2
Range: Group 1, Group 2
2 SETPOINTS [ ]
[ ]
S8 RTD TEMPERA-
TURE
[ ] 2 RTD [ ]
TYPES
[ ] 2 RTD #1 [ ]
[ ]
↓
2 RTD #12 [ ]
2 OPEN [ ]
RTD SENSOR
2 RTD [ ]
SHORT/LOW TEMP
489 GENERATOR MANAGEMENT RELAY – INSTRUCTION MANUAL
2 SETPOINTS [ ]
S9 THERMAL MODEL
2 MODEL [ ]
SETUP
2 THERMAL [ ]
ELEMENTS