SERVICE MANUAL R5888C
QUADRAMHO Chapter 8
Page 3 of 5
1.4 PM004
If module 4 is: RCL 10 001 040
RCL 10 001 041
RCL 10 001 042
The relay is fitted with a special scheme initially developed for WAPDA, Pakistan.
Apart from the format of the indications the scheme is standard. The Zone 1
extension scheme is not available on this version. Indications now give comparator
start information
A
B
C
N INST. TRIP
DEL. TRIP
Z2/Z3 START
V FAIL
A, B , C and N illuminate immediately a comparator operates. Inst. Trip operates
for Zone 1 fault, SOTF and a weak infeed trip. Del. Trip operates for Zone or Zone
3 time delayed trips. Z1/Z3 start illuminates of any Zone 2 or Zone 3 comparator
operates.
Case connection diagrams:
Single and three phase tripping S10 SHPM101 sheet 1
Three phase tripping only S10 SHPM101 sheet 1
1.5 PM005
If module 4 is: RCL 10 001 050
RCL 10 001 051
RCL 10 001 052
The relay is fitted with a revised program to allow the relay to work with miniature
circuit breakers instead of fuses in the VT supply. This has produced some far
reaching changes in the way the relay performs.
Note: Zone 1 extension schemes 08 and 09 are no longer available.
Single and three phase tripping S10 SHPM101 sheet 5
Three phase tripping only S10 SHPM101 sheet 6
1.6 PM006
If module 4 is: RCL 10 001 060
RCL 10 001 061
RCL 10 001 062
The relay is fitted with a special scheme to allow remote resetting of the relay
targeting (indications). The opto-isolator previously used to reset the Zone 1
extension feature on scheme option TSN = 8 and 9, now resets the indications.
The carrier receive opto-isolator is only required when a carrier aided scheme is
selected (TSN 2, 3, 4, 5, 6, 7). It is therefore possible to share this opto-isolator
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