Operating Instructions SYN 5201/SYN 5202
Document No Art Part Language Revision page
abb
ABB Switzerland Ltd
3BHS109762 E01
en D 17
Template: CHIND Techn doc stand, A4 P de, R1.DOT; Filename: 3BHS109762E01 D.doc; Print: 12/6/2011 5:48:00 PM; Save: 12/1/2011 2:37:00 PM; CHIND No. 3BHS109763 ZAB D14 Rev. -; I-Q
2.3.2 TEST U-Match
This test function proceeds as follows:
1. The generator voltage is adjusted until this lies in the range between 95 and 97% of
the line voltage, then the adjusting pulse is discontinued.
2. Ten seconds after the first adjusting pulse, the voltage difference
U0 is measured,
then a Higher command U+ lasting 5 s is given. A further 10 s after the end of the
pulse, the voltage difference
U is measured and dU/dt calculated according to the
following formula:
5
/
UoU
dtdU
3. With this dU/dt value, the generator voltage is brought back to approx. 96 %.
4. Ten seconds later, the generator voltage is brought to approx. 100 % with the same
dU/dt value. After a further ten seconds, dU/dt is calculated again and shown on the
display.
2.3.3 TEST f-Match
This test function proceeds as follows:
1. The slip is adjusted until this lies in the range between +1 and +3%, then the
adjusting pulse is discontinued.
2. Ten seconds after the first adjusting pulse, the slip s0 is measured, then a higher
command f+ lasting 3 s is given. A further 10 s after the end of the pulse, the slip s
is measured and df/dt calculated according to the following formula:
3
0
/
ss
dtdf
3. With this df/dt value, the slip is brought back to approx. +2 %.
4. Ten seconds later, the slip is brought to 0 % with the same df/dt value. After a
further ten seconds, df/dt is calculated again and shown on the display.
To Next Page
Loading...
