Function Block - ABB Relion Technical Manual

1MRK 502 048-UUS A
9.5.3
9.5.4
Technical manual

Function block

STEFPHIZ (59THD)
NEUTVOLT* TRIP
TERMVOLT* TRIP3H
52A TRIP_VN
BLOCK PICKUP
BLOCK3RD PU_3H
BLOCKVN PU_VN
DV3
BV3
ANSI07000033 -3-en.vsd
ANSI07000033 V3 EN
Figure 143: STEFPHIZ (59THD) function block
Signals
Table 178: STEFPHIZ (59THD) Input signals
Name Type
NEUTVOLT GROUP
SIGNAL
TERMVOLT GROUP
SIGNAL
52a BOOLEAN
BLOCK BOOLEAN
BLOCK3RD BOOLEAN
BLOCKVN BOOLEAN
Table 179: STEFPHIZ (59THD) Output signals
Name Type
TRIP BOOLEAN
TRIP3H BOOLEAN
TRIP_VN BOOLEAN
PICKUP BOOLEAN
PU_3H BOOLEAN
PU_VN BOOLEAN
DV3 REAL
BV3 REAL
Default Description
- Voltage connection neutral side
- Open-Delta connection on Terminal side
1 Input 1 (TRUE) means breaker between gen. & tr. is
closed
0 Complete block of the stator ground fault protecion
function
0 Block of the 3rd harmonic-based parts of the protection
0 Block of the fund. harmonic-based part of the protection
Description
Main, common trip command
Trip by one of two 3rd harmonic voltage-based prot.
Trip by fund. freq. neutral over-voltage protection
Main, common pick up signal
Start by one of two 3rd harmonic voltage-based prot.
Pick up signal by fund. freq. neutral over-voltage prot.
Diff. between 3rd harm. volt. at both sides of gen.
Bias voltage, a part of UN3
Section 9
Voltage protection
311