Enumeration Setpoints - GE Multilin 489 Instruction Manual

CHAPTER 1: GETTING STARTED
1.3.4

Enumeration Setpoints

SETPOINTS
Press or
MESSAGE ENTER
SETPOINTS
S1 489 SETUP
Press
MESSAGE
SETPOINTS
S2 SYSTEM SETUP
SETPOINTS
Press or
MESSAGE ENTER
SETPOINTS
S1 489 SETUP
Press
MESSAGE
SETPOINTS
S2 SYSTEM SETUP
489 GENERATOR MANAGEMENT RELAY – INSTRUCTION MANUAL
Courtesy of NationalSwitchgear.com
The example shown in the following figures illustrates the keypress sequences required to
enter system parameters such as the phase CT primary rating, ground CT primary rating,
bus VT connection type, secondary voltage, and VT ratio.
The following values will be entered:
Phase CT primary rating: 600 A
Ground CT type: 1 A secondary
Ground CT ratio: 200:1
Neutral Voltage Transformer: None
Voltage Transformer Connection Type: Open Delta
VT Ratio: 115:1
To set the phase CT primary rating, modify the
setpoint as shown below.
PHASE CT PRIMARY
Press the
[ ]
[ ]
Press
[ ] CURRENT
MESSAGE
SENSING
or
ENTER
Press the
or enter the value directly via the numeric
Press the
To select the Ground CT type, modify the
setpoint as shown below.
CT
Press the
[ ]
[ ]
Press
[ ] CURRENT
MESSAGE
SENSING
or
ENTER
S2 SYSTEM SETUP
key until the relay displays the setpoints menu header.
MENU
Press
[ ]
MESSAGE
or
ENTER
keys until 600 A is displayed,
VALUE
keypad.
key to store the setpoint.
ENTER
S2 SYSTEM SETUP
key until the relay displays the setpoints menu header.
MENU
Press
[ ]
MESSAGE
or
ENTER
Press
MESSAGE
CURRENT SENSING
PHASE CT PRIMARY:
-------------
PHASE CT PRIMARY:
600 A
NEW SETPOINT HAS
BEEN STORED
CURRENT SENSING GROUND
PHASE CT PRIMARY:
600 A
GROUND CT:
50:0.025
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