GE P444 User Manual

Commissioning
P44x/EN CM/Hb
6
MiCOM P40 Agile P442, P444
(CM) 9-
35
5.3.2 Distance scheme test (if activated in MiCOM S1 Agile)
5.3.2.1 Control
• The type of distance scheme enabled in MiCOM S1 Agile
• The DDB cells assigned for the distance scheme
• Ref to the description feature in P44x/EN AP section “Distance protection schemes”:
 Settings in S1
 DDB cells
 Internal logic in A2.10 & A3.2
REMINDER: General equation to the tripping in distance protection since A2.9/A3.1
– From A2.10/A3.2 it can be found in the Chap EN AP – section 2.5
Note: Before testing, check the input presence / Output in PSL linked to the selected
channel-aided scheme (DDB: DistCR/Dist CS). Also check the I/O condition change
(on LCD in FAV in "system")
Input:(PSL by default "P&C ") Output: (PSL by default "P&C ")
WARNING: WHEN SWITCHING GROUPS VIA THE OPTO COUPLERS: OPTOS 1 AND
2 MUST NOT BE ASSIGNED IN THE PSL.
Opto Label 02
DIST Sig Send
DDB #033
DIST. COS
DDB #098
Opto Label 02
DDB #033
DIST. COS
DDB #099
Opto Label 01
DDB #032
DDB #096
Opto Label 01
DDB #032
DEF. Chan Recv
DEF. Chan Recv
DDB #097
P3021ENa
DDB #178
DIST Sig Send
DDB #207
1
Relay Label 05
DDB #004
Pick-Up
0
0
Signal Send (Dist + DEF)
1. Select a mode.
2. Implement the fault indicated in the panel first column, the carrier signal input is
enabled (with carrier receive).
3. Check that the trip contact have been energised at the end of the time-delay indicated
in the same column (With carrier receive).
4. Repeat step 2 and 3 but without the carrier receive input and checking the indicated
time-delay in the panel’s 2nd column (without carrier receive).
Repeat step 2 and 4 for the other faulted zones by checking that whatever the carrier receive
input state, the time-delays associated with every zone are not modified (according to the 4th
column equations)
Note: Channel-aided schemes can be simulated by inverting the optos
Channel-aided schemes transmissions can also be checked by generating defaults
according to the 3rd column.
To simplify the relay I/O control condition, the assignments of LEDs in the PSL can be
modified. It is also possible in MiCOM S1 Agile

GE P444 Specifications

General

Brand	GE
Model	P444
Category	Protection Device
Language	English