ABB REG670 - Signals

9.6.4 Signals
Table 298: STEFPHIZ Input signals
Name
Type Default Description
U3PNEUT GROUP
SIGNAL
- Voltage connection neutral side
U3PTERM GROUP
SIGNAL
- Open-Delta connection on Terminal side
CBCLOSED BOOLEAN 1 TRUE means breaker between gen. & trafo is
closed
BLOCK BOOLEAN 0 Complete block of the stator earth fault protecion
function
BLOCK3RD BOOLEAN 0 Block of the 3rd harmonic-based parts of the
protection
BLOCKUN BOOLEAN 0 Block of the fund. harmonic-based part of the
protection
Table 299: STEFPHIZ Output signals
Name Type Description
TRIP BOOLEAN Main, common trip command
TRIP3H BOOLEAN Trip by one of two 3rd harmonic voltage-based prot.
TRIPUN BOOLEAN Trip by fund. freq. neutral over-voltage protection
START BOOLEAN Main, common start signal
START3H BOOLEAN Start by one of two 3rd harmonic voltage-based
prot.
STARTUN BOOLEAN Start signal by fund. freq. neutral over-voltage prot.
UT3 REAL Mag. of 3rd harm. voltage at generator terminal
side, Volts
UN3 REAL Mag. of 3rd harm. voltage at generator neutral side,
Volts
E3 REAL Total induced stator 3rd harmonic voltage, primary
Volts
ANGLE REAL Angle between 3rd harmonic votage phasors,
radians
DU3 REAL Diff. between 3rd harm. volt. at both sides of gen.,
Volts
BU3 REAL Bias voltage, a part of voltN3rdHarmonic, primary
Volts
UN REAL Fund. frequency voltage at generator neutral,
primary Volts
Section 9 1MRK502052-UEN B
Voltage protection
534
Technical manual