1MAC309294-MB F Section 4
Protection functions
RER620 211
Technical Manual
Figure 96: 59PS operation logic diagram
4.3.4.5 Application
Positive sequence overvoltage protection (59PS) is used to detect positive phase sequence
overvoltage conditions. The 59PS function can be used in various applications as an
alternative to ordinary three-phase overvoltage protection.
4.3.4.6 Signals
Table 223: 59PS input signals
Table 224: 59PS output signals
V3P
Comparator
&
Definite Timer
PICKUP_VAL
BLK_TRIP
BLOCK
BLK_PICKUP
&
STARTDUR
TRIP
PICKUP
t &
Name Type Default Description
V3P REAL 0 Group signal for connecting needed analog voltage signals to the
component
BLOCK BOOL FALSE Block overall function by resetting timers (TRUE = blocked, FALSE =
not blocked)
BLK_PICKUP BOOL FALSE Block PICKUP output (TRUE = blocked, FALSE = not blocked)
BLK_TRIP BOOL FALSE Block TRIP output (TRUE = blocked, FALSE = not blocked)
FR_TIMER BOOL FALSE Freeze internal trip timer to the value at the time of activation. Value
TRUE = freeze timer and FALSE = do not freeze timer.
Name Type Description
TRIP BOOL TRIP signal for 59PS function
PICKUP BOOL PICKUP signal for 59PS logic
PICKUPDUR REAL PICKUP duration as percent of the total Trip delay time (ratio of elapsed time in
pickup / Trip delay time)