CIRCUTOR OPTIM HYB Series User Manual

Page 26

4.3.- CHECKS ONCE THE CAPACITOR BANK HAS BEEN CONNECTED TO THE

1.- After start-up, make sure that the unit is operating correctly. An indication of proper function-

ing is that, once the reaction time of the regulator has passed, the CVM-MINI-RS485 display

will show a cos φ with a value of close to 1 in each phase, and the reactive power value for each

phase will be small compared to the active power value for each phase.

2.- Check that the power supply voltage does not exceed the nominal value +10% (IEC 60831-

1), by looking at the readings of the CVM-MINI-RS485 analyzer.

3.- Check the current absorbed by each capacitor group.

Under normal working conditions, it must be close to the nominal values (See

) 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 grid 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.

OPTIM HYB Series

Instruction Manual