Areva MiCOM P441, Technical Manual

Page: 415 / 636

Technical Data P44x/EN TD/E33
MiCOM P441/P442 & P444 Page 19/30
6.2.1 Programmable distance schemes
Setting Range
Signal Send Zone No Signal Send/Signal send on Z1/ Signal send on Z2/
Signal send on Z4
Type of Scheme on signal
Receive None/None+Z1X/Aided scheme for Z1 faults/Aided
scheme for Z2 faults/ Aided scheme for forward faults/
Blocking scheme for Z1 faults/ Blocking scheme for Z2
faults
6.2.2 Distance schemes settings
Setting Range Step size
Fault Type/Signal Send Zone Phase-to-Ground Fault Enabled/
Phase-to-Phase Fault Enabled/Both
Enabled -
Trip mode for the distance
protection Force 3 Pole Trip for all zones/1
Pole Trip for zone Z1/1 Pole trip for
zones Z1 and Z2 -
Signal Receive Time-Delay for
Blocking Schemes (Tp) 0 - 1s 0,002s
Time Delay for Reversal Guard 0 - 0,15s 0,002s
Unblocking Logic/Type of TAC
Receive None (no control of Signal
Receive)/Loss of carrier/Loss of
Guard (HF Presence) -
SOTF Delay 10 – 3600 s 1.000 s
TOR-SOTF Mode TOR
Z1 enable/Z2 enable/Z3 enable/
All zones enable/
Distance scheme enable
SOTF
AllZones/Lev.Detect./Z1 enable/Z2
enable/Z3 enable/Z1+Rev
en/Z2+Rev en/Dist Scheme/Disable
-
6.2.3 Weak infeed settings
Setting Range Step size
WI :Mode Status Disabled/Echo/Trip&Echo -
WI : Single Pole Trip Disabled/Enabled -
WI : V< Thres. 10 - 70V 5V
WI : Trip Time Delay 0 - 1s 0,002s
6.2.4 Loss of load settings
Setting Range Step Size
Mode status Disabled or enabled
Chan. Fail Disabled or enabled
I<
0.05 x
In
- 1 x
In
0.05
In
Window 0.01s - 0.1s 0.01s
NOTE: For detailed information on distance schemes, please refer to Chapter
P44x/EN AP - Application notes.