CIRCUTOR OPTIM-EMS-C Series - Manual (Page 19)

4.3.- CHECKS AFTER THE CAPACITOR BANK IS CONNECTED AND THE
REGULATOR ADJUSTED
1.- After start-up, make sure that the unit is operating correctly. A sign of proper operation after
the regulator's reaction time has passed is that the display shows a cos φ approaching 1, and
the reactive energy meter must stop.
2.- Check that the power supply voltage does not exceed the nominal value +10%
(IEC 60831-1).
3.- Check the current absorbed by each capacitor group.
Under normal working conditions, it must be close to the nominal values (See Table 5 ) and nev-
er more than 1.3 times this value continuously.
Continuous consumption in all the capacitors over the nominal value may be caused by the
presence of harmonics in the mains or an excessively high power supply voltage. Both circum-
stances are harmful for capacitors and control panels.
If there is unusual consumption in only some of the capacitors, it is a sign that there are dam-
aged capacitors.
4.- In accordance with the IEC 60831-1 Standard, the capacitor is prepared to operate at the
permanent voltage assigned to it and with an overvoltage of up to 10% for 8 out of every 24
hours.
Check the working temperature of the capacitors after they have been operating
for 24 hours.
The capacitor capsule must be under 40 ºC.
19 Instruction Manual
OPTIM EMS-C series