/PERATING INSTRUCTIONS
3$
6
# ' #
0AGE ON WITH KEY
!
- % ! 3
# X
4 % 3 4
!FTER CONFIRMATION WITH THE 9ES KEY
*9
THE CAPACI
TANCE WILL BE MEASURED
#ONFIRM WITH THE 9ES KEY
*9
4HE RELAY CALCULATES
THE CAPACITANCE USING THE VOLTAGE DROP ACROSS THE
SHUNT RESISTOR 2
B
AND THE PILOT CURRENT 4HE RESULT IS
DISPLAYED IMMEDIATELY "UT IF A SYSTEM FAULT IS DE
TECTED NO MEASUREMENT CAN TAKE PLACE ! CORRE
SPONDING MESSAGE IS DISPLAYED
# 5 2 2 . 4
4 / /
3 - ! , ,
- % ! 3
# X
# X
N &
4HE TOTAL CAPACITANCE OF THE PILOT WIRES IS DISPLAYED WITH
A RESOLUTION OF N& EG N&
& , 4
) .
0 2 / ' 2 % 3 3
! SYSTEM FAULT IS IN PROGRESS
. / 4
0 / 3 3 ) " , %
! " / 2 4 % $
4HE INJECTED CURRENT IS TOO SMALL FOR EVALUATION
MEASUREMENT IS NOT POSSIBLE FOR DIFFERENT REASON
MEASUREMENT IS ABORTED EG BECAUSE OF OCCURRENCE OF
A SYSTEM FAULT
!
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#Y #
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!B
"A
"C
!C
#A
#B
&IGURE
)DENTIFICATION SCHEME ON THREETERMINAL LINES
Содержание 7SD502
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