Operating Instructions SYN 5201/SYN 5202
Document No Art Part Language Revision page
abb
ABB Switzerland Ltd
3BHS109762 E01
en D 45
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
Procedure:
1. Prevent the circuit breaker from closing while work is being carried out (circuit
breaker in Test position, unplug connector -X6 for the paralleling commands on the
SYNCHROTACT 5,...)
2. Temporarily switch off voltage matcher: set dU/dt = 0 and write into the random
access memory.
3. In order that the effect of the adjusting pulse can be better judged: temporarily set
pulse interval ts f to maximum and write into the random access memory .
4. Set SYNCHROTACT 5 to Ready
5. The machine must be in operation: voltages present on both sides of the circuit
breaker; slip outside of the set tolerance window
6. Read the initial slip
7. Start synchronizing process
8. Wait for the end of the frequency adjusting command (LED), then wait until the slip
display shows stable values (10 to 20 s) and read this final slip
9. Stop SYNCHROTACT 5
10. Calculate value according to the following formula: df/dt = df/dt0*(s0-s1)/ (s0-0.1)
Key: df/dt = newly calculated value
df/dt0 = setting value prior to test
s0 = initial slip
s1 = final slip
11. Block SYNCHROTACT 5, set calculated value and set to Ready again
12. Bring slip outside of the tolerance band
13. Start synchronizing process
14. After the first frequency adjusting command, the slip must lie approximately half-way
between smax and zero
15. If the pulse was too long: increase the setting value, if the pulse was too short: lower
the setting value
16. Repeat points 11 to 15 until the adjusting pulse length is correct and the matcher is
functioning satisfactorily.
17. Activate voltage matcher again: set dU/dt = to previous value and save
18. Re-set pulse interval ts f to previous value and save
Pulse interval ts f
This defines the time between two frequency adjusting pulses. The default setting of
20 s can normally be left as it is. If problems arise with the frequency matching, tests
should be carried with higher or lower values.
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