Settings P54x/EN ST/La4
MiCOM P543, P544, P545, P546
(ST) 4-1
ST
CONTENTS
(ST) 4-
1. SETTINGS 3
1.1 Relay settings configuration 3
1.1.1 Default settings restore 6
1.2 Protection communication configuration 6
1.3 Protection GROUP settings 10
1.3.1 Line parameters 11
1.3.2 Distance setup (only for models with distance option) 12
1.3.3 Distance elements (only for models with distance option) 17
1.3.4 Phase differential 22
1.3.5 Scheme logic (basic and aided scheme logic). Only in models with distance option 24
1.3.6 Power swing blocking (only in models with distance option) 29
1.3.7 Phase overcurrrent protection 31
1.3.8 Negative sequence overcurrent 33
1.3.9 Broken conductor 34
1.3.10 Earth fault 34
1.3.11 Aided DEF (only in models with distance option) 37
1.3.12 Sensitive earth fault 38
1.3.13 Residual overvoltage (neutral voltage displacement) 40
1.3.14 Thermal overload 41
1.3.15 Voltage protection 41
1.3.16 Frequency protection 44
1.3.17 Independent rate of change of frequency protection 45
1.3.18 Circuit breaker fail and pole dead detection function 46
1.3.19 Supervision (VTS, CTS, Inrush detection and special weak infeed blocking) 47
1.3.20 System checks (check sync. function) 49
1.3.20.1 System checks (check sync. function) (P543/P545) 49
1.3.20.2 System checks (check sync. function) (P544/P546) 51
1.3.21 Auto-reclose function 56
1.3.21.1 Auto-reclose function (P543/P545) 56
1.3.21.2 Auto-reclose function (P544/P546) 59
1.3.22 Input labels 66
1.3.23 Output labels 66
1.4 Control and support settings 67
1.4.1 System data 67
1.4.2 Circuit breaker control 69
1.4.2.1 Circuit breaker control (P543/P545) 69
1.4.2.2 Circuit breaker control (P544/P546) 70
1.4.3 Date and time 73
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