Alstom MiCOM P546 - Page 825

Commissioning P54x/EN CM/La4
MiCOM P543, P544, P545 & P546
CM) 10-77
CM
*Delete as appropriate
8.4.1
Protectio
n dependencies noted & preparations
made?
Yes* N/A*
8.4.2 Injection testing - distance zones
8.4.2.1
Elements to be re-enabled after testing
(mark any that have been temporarily disabled)
Current diff
Earth fault
Overcurrent
DEF
CB fail
Na*
8.4.2.2 Zone 1 reach check - impedance at trip

Not measured*
8.4.2.3 Zone 2 reach check - impedance at trip

Not measured*
8.4.2.4 Zone 3 reach check - impedance at trip

Not measured*
8.4.2.5 Zone 4 reach check - impedance at trip

Not measured*
8.4.2.6 Zone P reach check - impedance at trip

Not measured*
8.4.2.7 Resistive reach
Visual inspection
Phase & ground element resistive reach settings
are correct?
Yes*
No*
8.4.2.8 Load blinder
Visual inspection
Load blinder settings are correct?
Yes*
No*
N/A*
Load blinder angle applied
˚ N/A*
8.4.3.1 Distance phase A contact routing OK? Yes* No*
Distance phase A trip time
ms
8.4.3.2 Distance phase B contact routing OK? Yes* No*
Distance phase B trip time
ms
8.4.3.3 Distance phase C contact routing OK? Yes* No*
Distance phase C trip time ms
Average trip time, phases A, B and C ms
8.4.3.4 Time delay settings tZ1 Ph, and tZ2 - tZ4
Visual inspection
Time delay settings are correct? Yes*
No*