SERVICE MANUAL R5888C
QUADRAMHO Chapter 8
Page 1 of 5
Section 1. SPECIAL VARIATIONS OF QUADRAMHO
Due to the nature of construction of Quadramho, all features are supplied as
standard and consequently few variations in hardware are possible. However, a
number of special schemes have been developed for various customers and these
are implemented by change in the EPROM in module 4 (RCL10).
To check which version of software is fitted, it is necessary to use the 3 alpha code
from module 5 (see Section 7 on module identification).
1.1 PM001
If module 4 is: RCL 10 001 000
RCL 10 001 001
RCL 10 001 002
The relay is fitted with a standard scheme and there are no special features.
Case connection diagrams:
Single and three phase tripping S10 SHPM101 sheet 1
Three phase tripping only S10 SHPM101 sheet 2
1.2 PM001
If module 4 is: RCL 10 001 020
RCL 10 001 021
RCL 10 001 022
The relay is fitted with a special scheme initially developed for ECNSW (Australia).
It is based on the standard scheme with 3 differences:
The Zone 2 time delayed trip has a setting range 0 – 5.1s in 20ms steps.
The Zone 3 time delayed trip has a setting range 0 – 10.2s in 40ms steps.
Fault locator logic operates for all three zones, priority given to Zone 1 then
Zone 2.
Case connection diagrams:
Single and three phase tripping S10 SHPM101 sheet 1
Three phase tripping only S10 SHPM101 sheet 2
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