Woodward HighPROTEC - Page 650

Protective Elements
Parameter Description Setting range Default Menu path
Is2 Value of the static tripping characteristic at
Is2
5.0 - 10.0Ib 10.0Ib [Protection
Para
/<1..4>
/Diff-Prot
/Id]
Char Reset% Drop Out (in percent of the setting).
Settable Drop Out works only on the
gradients. Id min uses a fix Drop Out.
90 - 98% 95% [Protection
Para
/<1..4>
/Diff-Prot
/Id]
d(H,m) Restraining factor for rising the static
tripping characteristic in case of stationary
or transient harmonic components, which
are ascertained by Fourier analysis (H) or
transients monitor (m).
0.0 - 30.0Ib 8Ib [Protection
Para
/<1..4>
/Diff-Prot
/Id]
Stab H2 Restraining of differential protection
function against stationary or transient
components of the 2nd harmonic at the
phase current (e.g. rush-effect).
inactive,
active
inactive [Protection
Para
/<1..4>
/Diff-Prot
/Id]
H2 Sta Threshold (2nd harmonic - basic wave ratio)
for restraining the differential protection
function against stationary 2nd harmonic.
Only available if: Stab H2 = active
10 - 60% 25% [Protection
Para
/<1..4>
/Diff-Prot
/Id]
H2 Tra Threshold (2nd harmonic - basic wave ratio)
for temporary stabilisation of the differential
protection function against transient 2nd
harmonic.
Only available if: Stab H2 = active
10 - 60% 10% [Protection
Para
/<1..4>
/Diff-Prot
/Id]
Stab H4 Restraining of differential protection
function against stationary components of
the 4th harmonic at the phase current.
inactive,
active
inactive [Protection
Para
/<1..4>
/Diff-Prot
/Id]
H4 Sta Threshold (4th harmonic - basic wave ratio)
for restraining the differential protection
function against stationary 4th harmonic.
Only available if: Stab H4 = active
10 - 60% 20% [Protection
Para
/<1..4>
/Diff-Prot
/Id]
650 MCDGV4 DOK-HB-MCDGV4-2E