66
13.9 - Precaution for compressor power supply bus
bar connection
This note applies to units using power supply bus bars with riveted
contact block at the level of the connection cages in the control
box. During re-connection it is imperative to:
-
Engage each bus bar in the cage up to the stop
-
Ensure visually that the bus bars have good contact at
the connection areas: There must not be any free move-
ment between the bus bar and the connection area
created by the fixing rivet of the contact block.
Connection of the contactor or current transformer
1
2
2
1 Power supply bus bar with riveted contact block
2 Contactor or current transformer connection zone
13.10 - Check of power factor correction capacitors
The verification consists in measuring input current of each
capacitor bank. Check shall be done using a true RMS meter
reading:
Ensure that the current draw throught the capacitor is between
0.8 and 1.3x Ir. A higher value may indicate heavy presence of
harmonics.
Absence of current despite capacitor is energized is an indication
that there is a defect. Confirmation shall be done by removing the
capacitors and checking the underside.
Defect
Good
13 - STANDARD MAINTENANCE
Содержание AquaForce 30XB series
Страница 69: ......
