ABB REG650 User Manual

Name Type Default Description
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 179: 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.
DU3 REAL Diff. between 3rd harm. volt. at both sides of gen.
BU3 REAL Bias voltage, a part of UN3
9.5.5 Settings
Table 180: STEFPHIZ Group settings (basic)
Name
Values (Range) Unit Step Default Description
Operation Off
On
- - Off Operation Off / On
Beta 0.50 - 10.00 - 0.01 3.00 Portion of 3rd harm voltage in neutral point
used as bias
CBexists No
Yes
- - No Defines if generator CB exists (between
Gen & Transformer)
FactorCBopen 1.00 - 10.00 - 0.01 1.00 Beta is multiplied by this factor when CB is
open
UN3rdH< 0.5 - 10.0 % 0.1 2.0 Pickup 3rd Harm U< protection (when
activated) % of UB/1,732
UT3BlkLevel 0.1 - 10.0 % 0.1 1.0 If UT3 is below limit 3rdH Diff is blocked, in
% of UB/1,732
UNFund> 1.0 - 50.0 % 0.1 5.0 Pickup fundamental UN> protection (95%
SEF), % of UB/1,732
t3rdH 0.020 - 60.000 s 0.001 1.000 Operation delay of 3rd harm-based
protection (100% SEF) in s
tUNFund 0.020 - 60.000 s 0.001 0.500 Operation delay of fundamental UN>
protection (95% SEF) in s
1MRK 502 048-UEN A Section 9
Voltage protection
287
Technical manual

ABB REG650 Specifications

General

Brand	ABB
Model	REG650
Category	Protection Device
Language	English