GE 889 Instruction Manual page 456

MONITORING
4–326
Path:
Setpoints > RTD Temperature > RTD 1[X]
TRIP FUNCTION
Range: Disabled, Trip, Configurable
Default: Disabled
For Transformer applications, if a trip is not required from the RTD, the user can select
"Configurable". The "Configurable" setting enable the RTD without producing trip.
NAME
Range: Up to 13 alphanumeric characters
Default: RTD 1
TYPE
Range: 100 Ω Platinum, 100 Ω Nickel, 120 Ω Nickel
Default: 100 Ω Platinum
Selects the type of the RTD used.
APPLICATION
Range: None, Stator, Bearing, Ambient, Other
Default: None
The setting allows each individual RTD to be assigned to a group application. This is
useful for some applications, which require group measurement. The setting "None"
means that the RTD operates individually and is not part of any RTD group. Common
groups are provided for needs at rotating machines applications such as "Ambient" of
"Bearing".
VOTING
Range: Off, RTD 1, RTD 2....RTD 12
Default: Off
This setting selects the RTD that must also exceed this RTD's Trip Temperature for a trip
to occur. Selecting the same RTD to which the element is related to, has the same effect
as selecting "Off".
TRIP TEMPERATURE
Range: 1°C to 250°C in steps of 1°C (33°F to 482°F in steps of 2°F)
Default: 155°C (311°F)
TRIP PICKUP DELAY
Range: 0 s to 600 s in steps of 1 s
Default: 2 s
TRIP DROPOUT DELAY
Range: 0 s to 600 s in steps of 1s
Default: 0 s
TRIP OUTPUT RELAY X
For details see Common
ALARM FUNCTION
Range: Disabled, Alarm, Latched Alarm
Default: Disabled
ALARM TEMPERATURE
Range: 1°C to 250°C in steps of 1°C (33°F to 482°F in steps of 2°F)
Default: 130°C (266°F)
ALARM PICKUP DELAY
Range: 0 s to 600 s in steps of 1 s
Default: 2 s
Setpoints.
889 GENERATOR PROTECTION SYSTEM – INSTRUCTION MANUAL
CHAPTER 4: SETPOINTS