GE 489

A-12 489 Generator Management Relay
GE Power Management
A.1 COMMISSIONING APPENDIX A
A
Table A–6: SETPOINTS PAGE 6 – VOLTAGE ELEMENTS (Sheet 1 of 3)
DESCRIPTION DEFAULT USER VALUE
SETPOINT GROUP 1
USER VALUE
SETPOINT GROUP 2
UNDERVOLTAGE
Undervolta
g
e Alarm Off
Assi
g
n Alarm Relays ---5
Undervolta
g
e Alarm Pickup 0.85 × Rated
Undervolta
g
e Alarm Delay 3.0 sec.
Undervolta
g
e Alarm Events Off
Undervolta
g
e Trip Off
Assi
g
n Trip Relays 1---
Undervolta
g
e Trip Pickup 0.80 × Rated
Undervolta
g
e Trip Delay 1.0 sec.
Undervolta
g
e Curve Reset Rate 1.4 sec.
Undervolta
g
e Trip Element Curve
OVERVOLTAGE
Overvolta
g
e Alarm Off
Assi
g
n Alarm Relays ---5
Overvolta
g
e Alarm Pickup 1.15 × Rated
Overvolta
g
e Alarm Delay 3.0 sec.
Overvolta
g
e Alarm Events Off
Overvolta
g
e Trip Off
Assi
g
n Trip Relays 1---
Overvolta
g
e Trip Pickup 1.20 × Rated
Overvolta
g
e Trip Delay 1.0 sec.
Overvolta
g
e Curve Reset Rate 1.4 sec.
Overvolta
g
e Trip Element Curve
VOLTS/HERTZ
Volts/Hertz Alarm Off
Assi
g
n Alarm Relays ---5
Volts/Hertz Alarm Pickup 1.00 x Nominal
Volts/Hertz Alarm Delay 3.0 sec.
Volts/Hertz Alarm Events Off
Volts/Hertz Trip Off
Assi
g
n Trip Relays 1---
Volts/Hertz Trip Pickup 1.00 x Nominal
Volts/Hertz Trip Delay 1.0 sec.
Volts/Hertz Curve Reset Rate 1.4 sec.
Volts/Hertz Trip Element Curve #1
UNDERFREQUENCY
Block Underfrequency From Online 1.0 sec
Volta
g
e Level Cutoff 0.50 × Rated