CIRCUTOR OPTIM P&P Series - Manual (Page 18)

5.- MAINTENANCE
5.1.- SAFETY REGULATIONS
Take the safety regulations listed in section of this manual into account before
operating the units “3.1.- PRELIMINARY RECOMMENDATIONS”
The National Electric Code of the country where the capacitor bank is installed or
operated should be strictly followed.
5.2.- MAINTENANCE WITH THE CAPACITOR BANK DISCONNECTED
5.2.1. BASIC MAINTENANCE PROTOCOL
Monthly:
 Visually inspect the capacitors.
 Check the protection fuse.
 Control the ambient temperature (average of 35 ºC. In accordance with IEC 60831 ).
 Control the service voltage (especially during moments of low load, it must not exceed
the nominal +10%).
Bi-annually:
 Keep the capacitor terminals clean.
 Verify the state of the contacts of operating elements.
 Check that the capacitor current is not lower than 25% nor greater than 120% of the
nominal value by phase and that there is no phase unbalance greater than 15%.
Annually:
Carry out a dielectric rigidity test by applying 2.5 kV for 1 second between the terminals
of the capacitor and earth.
Check the capacity of the capacitors at the different steps.
One indirect check may be to check that the consumption is manual.

Check the tightness of all terminal connections.
Inspect the fuses.
-
Power Circuit: NH fuses. Check continuity and temperature.
- Power Circuit: Check the continuity and temperature of the three-pole or four-pole
circuit breaker.
- Control Circuit: Check the continuity and temperature of the two-pole circuit breaker.
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OPTIM P&P Series
Instruction Manual