ABB REC650 - Thermal Overload Protection, One Time Constant Fahrenheit;Celsius LFPTTR;LCPTTR (26)

IEC Normal Inverse
IEC Very Inverse
IEC Inverse
IEC Extremely Inverse
IEC Short Time Inverse
IEC Long Time Inverse
IEC Definite time
ASEA RI
RXIDG (logarithmic)
The different characteristics are described in Technical Manual.
tINNonDir is the definite time delay for the non directional ground-fault current
protection, given in s.
OpVN is set Enabled to activate the trip function of the residual voltage protection.
tVN is the definite time delay for the trip function of the residual voltage protection, given
in s.
6.6 Thermal overload protection, one time constant
Fahrenheit/Celsius LFPTTR/LCPTTR (26)
6.6.1 Identification
Function description
IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Thermal overload protection, one time
constant, Fahrenheit
LFPTTR 26
Thermal overload protection, one time
constant, Celsius
LCPTTR 26
Section 6 1MRK 511 286-UUS A
Current protection
128
Application manual