SERVICE MANUAL R5888B
QUADRAMHO Chapter 5
Addendum 2
Page 11 of 13
PERMISSIVE OVERREACH SCHEME (04 or 05)
Aided trip
Instantaneous aided trip obtained for Zone 2
fault and signal received
Signal send check
Contacts (B1-2, B3-4) close immediately for a Zone 2 fault
Contacts operation in test option 62 with SW8 to the right
Measurement of t
p
Time from signal receive to signal receive annunciate on monitor point box
Tolerance as in instructions ..............ms
Measurement of t
D
Time from signal receive removal to signal receive
annunciate extinguishing on monitor point box
..............ms
Tolerance ±6ms
Signal receive check
In test option 41 check that the SOTF LED illuminates
Block auto reclose checks (SW6 function check)
SW6 to the right CIS not energised
Block auto reclose contact (B25-26) is closed
CIS energised contact open
SW6 to the left contact open if CIS energised or not
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