ABB APC Instructions D'installation, D'utilisation Et D'entretien page 26

6. Maintenance
Ensure safety procedures are completed as earlier stated.
6.1. APC maintenance
Your capacitors are an investment, protect them by regular maintenance.
Annual maintenance should include:
Remove dust deposits, clean all parts, paint metalwork as required;
Check fuse condition;
Check contactor condition and operation – replace as necessary;
Check isolator connections and operation;
Check operation of PF Controller;
Check ambient temperature and equipment ventilation;
The cleaning of the entry grid is to be checked regularly, the frequency of controls are under end-user's
responsibility.
Check that ventilation grids are obstructed by neither dust, nor any extraneous body.
6.2. APCR capacitors module replacement
26
Module 6
Module 5
Module 2
Module 1
Module 3
Module 4
Figure 6.1. APCR 300kvar module 4 replacement
APC - Chapter 6. Maintenance