1 0
Cross checking the wiring
The three phase voltage wiring and current wiring are to be properly done
for the correct measurement. Any wrong connections done either during
installation or rewiring can produce wrong measurement.
The reverse condition occurs when the voltages R,Y & B are not con-
nected in proper sequence and also when the respective current is not given
according to its respective voltage.
To avoid any accidental wrong connections the PFC 9055 is provided
with a connection diagnostic page of display. If the display shows Ct niL
then there is no reverse flow otherwise the reversed phase is shown. While
checking the reverse condition, make sure that the load current is more than
5% of full load current.
Relay Output Connections
The power factor controller connects/disconnects the capacitors through
output relays. The relays are rated for 3A at 240 VAC. So proper contactors
are to be used for switching the capacitors.
