Areva MiCOM P521 - MiCOM P521 trip circuit supervision mechanism; Figure 23: amended; Figure 24: amended; Unconditional 4 wire pilot communications for distances greater than 1.2 km (P595)

P521/EN AD/B21 Update Documentation
Page 2/24 MiCOM P521
Document Ref. Section Page No. Description
P521/EN AP/B11
53
MiCOM P521 trip circuit supervision
mechanism
Figure 22 : amended
54 Figure 23 : amended
3.8.1 55 Figure 24 : amended
5.8 74
Unconditional 4 wire pilot
communications for distances
greater than 1.2km (P595)
Note : amended
P521/EN CM/B11
9.3.2 32
Protection comms. fault
Figure 2 : amended
P521/EN MC/B11
2. 3
Definitions
Switch diagram : added to end of section
P521/EN AC/B11
5.1 13
Function of loopback test box
Figure 6 : amended
P521/EN VC/B11
- -
Hardware/software version history
and compatibility
Updated to reflect latest relay software