Woodward HighPROtec MCDLV4, Manual, Page: 832 / 1275

Protective Elements
Parameter Description Setting range Default Menu path
V< Reset% Drop Out (is in percent of setting) 101 - 110% 103% [Protection
Para
/<1..4>
/V-Prot
/V[1]]
t Tripping delay 0.00 - 3000.00s V[1]: 1s
V[2]: 1s
V[3]: 0.00s
V[4]: 0.00s
V[5]: 0.00s
V[6]: 0.00s
[Protection
Para
/<1..4>
/V-Prot
/V[1]]
Meas Circuit
Superv Activates the use of the measuring circuit
supervision. In this case the module will be
blocked if a measuring circuit supervision
module (e.g. LOP, VTS) signals a disturbed
measuring circuit (e.g. caused by a fuse
failure).
inactive,
active
inactive [Protection
Para
/<1..4>
/V-Prot
/V[1]]
Imin release
check
Enable a minimum current check. This
monitors the current flow (in the CT on the
VT side), to detect whether the circuit
breaker is permanently in open state; in this
case the undervoltage detection is blocked.
inactive,
active
inactive [Protection
Para
/<1..4>
/V-Prot
/V[1]]
Threshold Imin Threshold value that is used for the Imin
release (minimum current) check. If the
current flow is below this value, it is
assumed that the circuit breaker is
permanently in open state.
Only available if: Imin release check =
active
0.02 - 10.00In 0.05In [Protection
Para
/<1..4>
/V-Prot
/V[1]]
t-delay Imin Release delay for the undervoltage
detection. This delay is effective only after
the minimum current check had blocked the
undervoltage detection. When the circuit
breaker has been closed and the current
flow is re-establishing, this delay continues
to block the undervoltage detection; during
this time the voltage can rise above the
pickup value »V<«.
Only available if: Imin release check =
active
0.00 - 3000.00s 0.03s [Protection
Para
/<1..4>
/V-Prot
/V[1]]
832 MCDLV4 DOK-HB-MCDLV4-2E