Thermal Elements; Tap Changer - GE 845 Instruction Manual

TRANSFORMER

Thermal Elements

Tap Changer

6–6
Path:
Metering > Transformer > Thermal Elements
Metering\Transformer\Thermal Elements
Item Name
Wndg Hottest Spot ° C
Aging Factor
Daily Rate LOL
Transformer Life Lost
Top Oil Temperature
Ambient Temperature
Thermal
The calculation of all "Thermal Elements" actual values starts at the time the relay is first
powered up. Therefore, the Daily Rate Loss of Life starts accumulating in the next 24 hour
period. All records can be cleared either from the relay's keypad, or from the EnerVista 8
Series Setup PC program using the Clear Loss of Life command from the menu Records/
Clear Records.
Path: Metering > Transformer > Tap Changer
Tap Position
Range: -19 to 39 in steps of 1
Default: Not Set
Ohms In 1
Range: 0 to 5100 ohms in steps of 1
Default: 0 ohms
Winding Voltage
Range: 0.00 to 1200000.00 kV in steps of 0.01
Default: 0.00 kV
Value
0
0.0
0.000
0.000
0
0
845 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL
CHAPTER 6: METERING
Unit
°C
hrs
hrs
°C
°C