Where do i start.............
Daily at Johnson & Phillips we are approached for quotations and technical support across both LV & HV Solutions. Those requesting this are not only the distant few, they are the distant many.
Consultants supporting clients who are out of their depth and have NO understanding of the systems they trying to provide consultancy on. Electrical contractors trying to provide a solution across the professional elements of a serious field.
Power Factor Correction
Get this wrong and not only will you amplify the voltage, burn the building to the ground, you may kill someone.
PFC is simply more than just a contactor and capacitor you could also destabilise the common bar this simple looking component is connected in parallel to.
Transformer and supply upgrade
Land Owners and Buyers have to set aside relationships with their mates and preferred Electrician and dig deeper. This picture above was purchased by the 'lack of knowledge' and provided a system which beggars belief. The close coupled Eldon enclosure is acting as a switchboard with NO FAULT rating. The transformer is 2MVA. We refused to re-energise it.
Lack of Testing Knowledge
This was a Hospital Incomer section and the HV Services provider engineers re-energised without testing the incomer section properly and closed the supply on to a dead short. It blew the end of the board out.
Form 4 Type 2 2000A Main Switchboard Incomer Section
This was built by the lowest bidder, there is no separation between the PFC and the incoming main tails. Standard PFC for a fast switching welding application, only luck prevented disaster. The capacitors where swollen and at the point of going pop.
I could go on all night, however my beer is getting warm!!!
for professional solutions to 11kV [email protected]