STARTCOMB
To make it possible to provide the directional information from a protection
function, a STARTCOMB block is used in between the application function and the
Start Matrix function.
The STARTCOMB function has one block input and 14 Boolean inputs that
convert the 14 Boolean inputs into a WORD output STDIR, see Figure
249.
STDIRX
=[
b0, b1, b2, b3, b4, b5, b6, b7, b8, b9, b10, b11, b12, b13, b14
]
b0= START (start)
b1= FW (forward)
b2= REV (reverse)
b3= STL1 (startL1)
b4= FWL1 (forwardL1)
b5= REVL1 (reverseL1)
b6= STL2 (startL2)
b7= FWL2 (forwardL2)
b8= REVL2 (reverseL2)
b9= STL3 (startL3)
b10= FWL3 (forwardL3)
b11= REVL3 (reverseL3)
b12= STN (startN)
b13= FWN (forwardN)
b14= REVN (reverseN)
STARTCOMB
BLOCK
S TAR T
FW
REV
S TL1
F WL1
REVL1
STL2
FWL2
REVL2
S TL3
F WL3
REVL3
S TN
F WN
REVN
STDI R
IEC16000166-2-en.vsdx
IEC16000166 V2 EN-US
Figure 249: STARTCOMB
Protection functions
Some protection functions are provided with start and directional outputs, for
example:
Section 13 1MRK 506 382-UEN A
Logic
478 Line distance protection REL650 2.2 IEC
Technical manual
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