ABB RELION 670 Series Technical Manual page 666

Section 9
Voltage protection
is deactivated and the sensitivity is changed. This is done by changing the factor
multiplied with a set constant
In addition to the binary outputs also some analog outputs are available from the protection
function in order to enable easier commissioning:
E3: the magnitude of the 3
VN3: the magnitude of the 3
VT3: the magnitude of the 3
ANGLE: the angle between the phasors VN3 and VT3 given in radians
DV3: the magnitude of the 3
BV3: the magnitude of the 3
V_N: the fundamental frequency voltage measured in the neutral point of the generator
9.6.8 Technical data
Table 373: STEFPHIZ (59THD) technical data
Function
Fundamental frequency level
VN (95% Stator EF)
Third harmonic differential
level
Third harmonic differential
block level
Independent time delay to trip
for fundamental VN >
protection at 0 to 1.2 x
VNFund>
Independent time delay to trip
for 3rd harm-based protection
at 0 to 5 x VN3rdH<
Filter characteristic:
Fundamental
Third harmonic
9.7 Loss of voltage check LOVPTUV (27)
9.7.1 Identification
Function description
Loss of voltage check
660
FactorCBopen .
rd
harmonic voltage induced in the stator given in primary volts
rd
harmonic voltage measured in the neutral point of the generator
rd
harmonic voltage measured in the terminal point of the generator
rd
harmonic differential voltage
rd
harmonic bias voltage
Range or value
VBase
(1.0–50.0)% of
VBase
(0.5–10.0)% of
VBase
(0.1–10.0)% of
(0.020–60.000) s
(0.020–60.000) s
Reject third harmonic by 1–40
Reject fundamental harmonic
by 1–40
IEC 61850
identification
LOVPTUV
Accuracy
±0.25% of V
n
±0.25% of V
n
±0.25% of V
n
±0.2% or ±40 ms whichever is greater
±0.2% or ±40 ms whichever is greater
-
IEC 60617 ANSI/IEEE C37.2
identification device number
- 27
1MRK 502 066-UUS B
Beta which is
SEMOD175168-2 v7
SEMOD171453-1 v3
SEMOD171954-2 v2
Technical manual