This is in a refrigeration plant. The device is one of three CBs inside a new main panel which was constructed by local panel builders under instruction from a consultant. Being a new installation, the client is on the war path. I was only there to investigate why the breaker was occasionally jumping out. One of compressors on start-up was drawing 1600A for 4 seconds through a soft start which was faulty and had to be replaced. That might have been an amp or two too much for a tripping unit that was already thermally primed! In any event, there is a proposal for an extra 800Kw of refrigeration and gas scrubbing plant if planning permission is granted. There is a 500Kw Bio-plant feed in and I believe the parasitic load to be 130Kw. The DNO have just installed a new 800Kva transformer. That with the bio-digester might have just about satisfied the existing demand so we are a transformer short for the new load. It will be interesting to see the solutions proffered.
This is in a refrigeration plant. The device is one of three CBs inside a new main panel which was constructed by local panel builders under instruction from a consultant. Being a new installation, the client is on the war path. I was only there to investigate why the breaker was occasionally jumping out. One of compressors on start-up was drawing 1600A for 4 seconds through a soft start which was faulty and had to be replaced. That might have been an amp or two too much for a tripping unit that was already thermally primed! In any event, there is a proposal for an extra 800Kw of refrigeration and gas scrubbing plant if planning permission is granted. There is a 500Kw Bio-plant feed in and I believe the parasitic load to be 130Kw. The DNO have just installed a new 800Kva transformer. That with the bio-digester might have just about satisfied the existing demand so we are a transformer short for the new load. It will be interesting to see the solutions proffered.
