CHAPTER 5: SETTINGS
SYSTEM SETUP
F35 MULTIPLE FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
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5.5.3.4 Example for use of sources
An example of the use of sources is shown in the following figure. A relay can have the following hardware configuration:
This configuration can be used on a two-winding transformer, with one winding connected into a breaker-and-a-half
system. The following figure shows the arrangement of sources used to provide the functions required in this application,
and the CT/VT inputs that are used to provide the data.
Figure 5-93: Example of use of sources
Increasing slot position letter -->
UR
CT/VT module 1
CT/VT module 2
CT/VT module 3
B30, B90, C70, F35, N60, T35
8 CTs
4 CTs, 4 VTs
4 CTs, 4 VTs
C60, D60, G30, G60, L30, L90, M60, T60
CTs
VTs
not applicable
Y LV
D HV
AUX
SRC 1
SRC 2
SRC 3
Phase CT
M1
F1+F5
None
Ground CT
M1
None
None
Phase VT
M5
None
None
Aux VT
None
None
U1