Alstom SHPM 101 - Page 220

SERVICE MANUAL R5888C
QUADRAMHO Chapter 5
Contents
5.2.5 Block auto reclose checks 16
5.3 Blocking scheme (06 or 07) 16
5.3.1 Measurement of tD 17
5.3.2 Aided trip and tp check 17
5.3.3 Signal send check 17
5.3.4 Signal receive check 17
5.3.5 Block auto reclose checks 18
5.4 Permissive overreach scheme (04 or 05) 18
5.4.1 Aided trip check 18
5.4.2 Signal send check 18
5.4.3 Measurement of tp 18
5.4.4 Measurement of tD 19
5.4.5 Signal receive check 19
5.4.6 Block auto reclose checks 19
5.4.7 Echo feature 19
5.4.8 Weak infeed feature 20
5.5 Signalling Channel Check (Schemes 02 to 07) 20
6. LIVE SYSTEM CHECKS 21
6.1 Signalling channel check 21
6.2 Trip test 21
6.3 Final setting checks 21
6.4 On load tests 21
6.4.1 Voltage transformmer checks 21
6.4.2 CT/VT phasing check 21
6.4.3 Directional check 22
APPENDIX A FIGURES
ADDENDUM 1 CALCULATION OF REACH SETTINGS
ADDENDUM 2 COMMISSIONING TEST RECORD
ADDENDUM 3 NEW RECOMMENDATIONS FOR TIMER SETTINGS IN THE
CURRENT REVERSAL GUARDS
ADDENDUM 4 USE OF DOBLE TEST TO COMMISSION QUADRAMHO