Function Block - ABB REG650 Technical Manual

Section 8
Current protection
8.4.3
8.4.4
208
Two warning pickup levels are available. This enables actions in the power system to
be done before dangerous temperatures are reached. If the temperature continues to
increase to the trip value, the protection initiates a trip of the protected transformer/
generator.

Function block

TRPTTR (49)
I3P* TRIP
BLOCK PICKUP
COOLING ALARM1
RESET ALARM2
LOCKOUT
WARNING
ANSI08000037-1-en.vsd
ANSI08000037 V1 EN
Figure 96: TRPTTR (49) function block
Signals
TRPTTR is not provided with external temperature sensor in first
release of 650 series. The only input that influences the temperature
measurement is the binary input COOLING.
Table 85: TRPTTR (49) Input signals
Name Type
I3P GROUP
SIGNAL
BLOCK BOOLEAN
COOLING BOOLEAN
RESET BOOLEAN
Table 86: TRPTTR (49) Output signals
Name Type
TRIP BOOLEAN
PICKUP BOOLEAN
ALARM1 BOOLEAN
ALARM2 BOOLEAN
LOCKOUT BOOLEAN
WARNING BOOLEAN
Default Description
- Three phase group signal for current input
0 Block of function
0 Cooling input changes IBase setting and time constant
0 Reset of function
Description
Trip Signal
Pickup signal
First level alarm signal
Second level alarm signal
Lockout signal
Trip within set warning time
1MRK 502 043-UUS B
Technical Manual