KMB NOVAR 2600, Руководство по эксплуатации

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NOVAR 2600 Operating Manual
Fig. 4.23 : ACD Process – Successful Step Result
at 1Y3 connection type at 1D3 connection type
When 1Y3 connection type is set the controller supposes a line-to-neutral voltage (L-N, left screen) is
connected; when 1D3 connection type a line-to-line voltage (L-L, right screen) is expected.
If unsuccessful step occurs usually dashes appear (left screen below). Such steps are not unusual
especially when reactive power in measured network fluctuates strongly.
Fig. 4.24 : ACD Process – Unsuccessful Step Results
There may be cases where the angle measured with a permissible tolerance does not match any of
expected options. Then estimated angle with question mark appears (right screen).
If unsuccessful steps with the same results and the question mark repeat frequently, the
most likely cause is incorrectly set connection type. Check it and try to start the process
again.
Ongoing ACD process can be interrupted at any point either manually by pushing the
button or by any of alarm actuations. In such case, the recognized data are neglected and
neither U1 angle nor U
NOM
setting is updated.
The process can have up to 12 rounds with four steps each. After each step, the measurement results
are analyzed. If the results are sufficiently stable, the process is finished and the results are displayed.
Fig. 4.25 : ACD Process – Results
The End
is shown in the process headline and found U1 angle is displayed.
Furthermore, estimated network nominal voltage U
NOM
appears in the second line. According voltage
measured at the U1 input during the process the nearest value according following table is chosen.
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