Circutor OPTIM HYB Series Instrukcja Użytkownika Pobierz pdf (Strona 30)

5.3.- MAINTENANCE WITH THE CAPACITOR BANK CONNECTED

 Check that the main switch turns on and off without having to force the mechanism.

 If there is an individual earth leakage protection for the capacitor bank, check its proper

operation by pressing the test button.

 Check that the steps connect and disconnect normally, in accordance with the connection

operations carried out by the Computer HYB regulator.

 Check that when the single-phase step is disconnected there is no consumption in the cable

from the unipolar circuit breaker to the capacitor terminal.

If there is consumption this means that some of the thyristors are defective and are short-cir-

cuiting

 Check the consumption of the different steps in each phase. The normal values are shown in

Table 8, in accordance with the power of each step.

Table 8:Nominal consumption of the capacitor paths, by power and voltage.

Power

In, Current

1 x 230 V

3 x 400 V

2.5 kvar 10.9 A

3.6 A

5 kvar 21.8 A

7.2 A

7.5 kvar 32.6 A

10.8 A

10 kvar

43.5 A

14.4 A

12.5 kvar

18 A

15 kvar

21.6 A

20 kvar

28.8 A

25 kvar

36 A

30 kvar

43.2 A

40 kvar

57.6 A

50 kvar

72 A

60 kvar

86.4 A

Note: When the consumption of the steps is 25% less than that stated in Table 8 and the volt-

age is within the tolerance limits, this is usually a sign of degradation of the capacitors. They

must be replaced with a suitable spare part if this is detected in a step.

Note: When the consumption of the steps is 10% more than the values stated in Table 8, this

may be caused by the presence of resonances. If this is detected, measure the THD of the

network voltage (it should be below 5%).

5.4.- ENVIRONMENTAL CONDITIONS

 Check that the maximum environmental conditions listed in section “6.- TECHNICAL FEA-

TURES” are being observed

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