Having further checked the PFC capacitors, all three are faulty,
Marc,
the supply running the MH is 3 phase 440v
split via two panel boards side by side.
The supply characteristics are as follows.
440V ac 50hz 3 phase at 600 amp per phase.
thsi oes via the local pocos fusable link and to the meter then to main disco (1000 amp)
from the disco it goes to a Bus Bar chamber then to local discos to sub panels.
the lighting boards are fed accross the PFC capacitors via there own Discos and then to panel boards.
Having now checked the installation we have removed the PFC and i am just in the process of checking loading capacity/lamp start/run currents to be able to re specify a new PFC.
the CEO was in again and had a few words to say to me, Again, the plant electrician has not been seen for a few days and we are all wondering what the hXXl he thought he was doing.
when i get the new PFC capacitor i will let you all know the outcome, i think it will be a good one.
By for now. John H
