Micom P634 - Page 254

CTS:
blocked
460 400
IA,y
IB,y
IC,y
Ipos
Ineg
Ineg/Ipos
c
CTS:
Ineg/Ipos> PSx
[ * ]
c
CTS:
Ineg/Ipos>> PSx
[ * ]
c
CTS:
Ipos> PSx
[ * ]
Parameter
set 1
set 2
set 3
set 4
CTS:
Ipos> PSx
001 111
001 115
001 116
001 117
CTS:
Ineg/Ipos> PSx
001 102
001 103
001 104
001 105
CTS:
Ineg/Ipos>> PSx
001 122
001 123
001 124
001 125
64Z5302A
Ipos>,y
Ineg/Ipos>,y
Ineg/Ipos>>,y
MAIN:
Phase sequence
[ 010 049 ]
*
Fig. 3-151: Current evaluation referring to the respective end
Ipos>,c
64Z5303B
CTS:
blocked
460 400
Ipos>,a
Ineg/Ipos>,a
Ipos>,b
Ipos>,d
Ineg/Ipos>,b
Ineg/Ipos>,c
Ineg/Ipos>,d
Ineg/Ipos>>,a
Ineg/Ipos>>,c
Ineg/Ipos>>,d
Ineg/Ipos>>,b
=(N-1)
&
&
CTS:
End a faulty
460 471
&
CTS:
End b faulty
460 472
&
&
CTS:
End c faulty
460 473
CTS:
End d faulty
460 474
≥1
≥1
≥1
≥1
≥2
=1
Fig. 3-152: CTS triggering condition
N represents the number of transformer ends, that is N = 4 (a, b, c, d).
P634
3 Operation
3-198 P634/EN M/R-42-A // P634‑311‑653