GE 489 - Page 247

GE Power Management
489 Generator Management Relay A-15
APPENDIX A A.1 COMMISSIONING
A
Table A–7: SETPOINTS PAGE 7 – POWER ELEMENTS
DESCRIPTION DEFAULT USER VALUE
SETPOINT GROUP 1
USER VALUE
SETPOINT GROUP 2
REACTIVE POWER
Block Mvar Element From Online 1 sec.
Reactive Power Alarm Off
Assi
g
n Alarm Relays ---5
Positive Mvar Alarm Level 0.85 × Rated
Ne
g
ative Mvar Alarm Level 0.85 × Rated
Positive Mvar Alarm Delay 10.0 sec.
Ne
g
ative Mvar Alarm Delay 10.0 sec.
Reactive Power Alarm Events Off
Reactive Power Trip Off
Assi
g
n Trip Relays 1---
Positive Mvar Trip Level 0.80 × Rated
Ne
g
ative Mvar Trip Level 0.80 × Rated
Positive Mvar Trip Delay 20.0 sec.
Ne
g
ative Mvar Trip Delay 20.0 sec.
REVERSE POWER
Block Reverse Power From Online 1 sec.
Reverse Power Alarm Off
Assi
g
n Alarm Relays ---5
Reverse Power Alarm Level 0.05 × Rated MW
Reverse Power Alarm Delay 10.0 sec.
Reverse Power Alarm Events Off
Reverse Power Trip Off
Assi
g
n Trip Relays 1---
Reverse Power Trip Level 0.05 × Rated MW
Reverse Power Trip Delay 20.0 sec.
LOW FORWARD POWER
Block Low Fwd Power From Online 0 sec.
Low Forward Power Alarm Off
Assi
g
n Alarm Relays ---5
Low Forward Power Alarm Level 0.05 × Rated MW
Low Forward Power Alarm Delay 10.0 sec.
Low Forward Power Alarm Events Off
Low Forward Power Trip Off
Assi
g
n Trip Relays 1---
Low Forward Power Trip Level 0.05 × Rated MW
Low Forward Power Trip Delay 20.0 sec.