Icar MICROmatic HP10 Manuel D'installation Et D'opération page 21

Safety recommendations
- Never open the disconnect switch under load with the power factor correction banks switched in.
- Never perform repeated manoeuvres of the power factor correction banks without respecting the capacitor
discharge times, as specified on the warning nameplate affixed on all the automatic units.
- It is forbidden to modify the units without prior authorization from the ICAR Engineering Department.
- Never adjust or carry out modifications of the systems with the unit switched on.
- Never interrupt the secondary of the current transformer while current is flowing through it.
- Avoid using units consisting of normal capacitors on networks where relatively high harmonic currents are
present. In these cases, it is recommended to consult the ICAR Technical Service Department or else to
follow the instructions given in the product data sheet, contained in the catalogue or on our web-site.
- Never operate in the presence of live parts with the door open.
Improper uses
- Automatic units with steps inserted exclusively in manual mode.
A permanently switched in capacitor bank is not always the most correct solution, because when there is a
low load, the total current could be highly out of phase, i.e. anticipated with respect to the voltage.
In this case, there would be overvoltage on upstream side, which could become hazardous both for power
factor correction and for other users.
- Installation of the automatic unit in the vicinity of piled-up materials of various kinds.
The risk consists in obstructing prompt action when needed as well as limiting the cooling of the unit.
Precautions regarding use
Only fully trained persons should be allowed to work on the units, i.e. persons possessing technical know-how
and/or work experience and who also have specific and sufficient instructions so as to avoid risks relating to
direct contacts or risks of electrical nature.
N.B.Never perform any maintenance work with the unit switched on.
In the case of failure, exclusion or maintenance being carried out to the system, affix a tag warning not to switch
it on.
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