GE 745 Instruction Manual page 13

CHAPTER 1: GETTING STARTED
1.2.2 Panel Keying Example
745 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL
For example, the
S4 ELEMENTS
path representation describes the following key-press sequence:
FACTOR LIMIT PICKUP
1. Press the MENU key until the setpoints header appears on the display.
 
SETPOINTS [ ]
2. Press the MESSAGE RIGHT or ENTER key, and then the MESSAGE DOWN key until the
message is displayed.
ELEMENTS
 
SETPOINTS [ ]
S4 ELEMENTS
3. Press the MESSAGE RIGHT or ENTER key to display
 
INSULATION [ ]
AGING
4. Press the MESSAGE RIGHT or ENTER key to display

 AGING FACTOR [
LIMIT
5. Press the MESSAGE RIGHT or ENTER key to reach the
message and the corresponding setpoint value.
AGING FACTOR LIMIT
PICKUP: 2.0
6. Press the MESSAGE DOWN key to display the next actual value message as shown
below:
AGING FACTOR LIMIT
DELAY: 10 min.
7. Pressing the MESSAGE UP or DOWN keys scrolls the display up and down through all
the setpoint displays in this corresponding sub-page.
8. Pressing the MESSAGE LEFT key reverses the process described above and returns the
display to the previous level.
 
AGING FACTOR [
LIMIT
9. Press the MESSAGE LEFT key twice to return to the
 
SETPOINTS [ ]
S4 ELEMENTS
INSULATION AGING

]
]
USING THE RELAY
AGING FACTOR LIMIT
 
INSULATION AGING message.
message.
AGING FACTOR LIMIT
AGING FACTOR LIMIT PICKUP
S4 ELEMENTS page header.
AGING
S4
1–5