montericci
Member
- Location
- Ottawa, IL
Hi all.
I've got a project that seems to be getting the better of me. I am designing an upgraded electrical system for a sewer plant and when it comes to grounding systems, I'm a little lost. The plant consists of several buildings and process areas with the main buildings being the control building, the filter building and the service and pumps building. At each of these building there are existing pad mounted transformers: Filter bld two 750KVA (with tiebreaker switchgear), at the control building two 750KVA (with tiebreaker switchgear) and the service bld two 500KVA (without tiebreaker switchgear..only one useable transformer). The secondary of all the transformers is 480/277V 3 phase 4 wire. In 1972 a ground system was installed throughout the plant but has since been compramised in several locations. My thoughts are to replace the broken wires, CAD Weld the new to the existing that's still in tact and implement several new ground rods. In the big mix of this nightmare I'm to specify two 750KW generators to operate along with the existing 750KW generator and make sure the ground system is correct. I have two PDFs of the plant that are too big to put on this post. One of the one line diagram and one of the grounding system that I've come up with so far. Please let me know if I should be using 3 or 4 pole ATSs with these gensets, and why.
email me for the PDFs or CAD drawings Thanks for your help
(Moderator’s Note: Edited to remove email address. If you wish to send an email message to this person, then first send a Private Message via this Forum, and ask for the email address.)
I've got a project that seems to be getting the better of me. I am designing an upgraded electrical system for a sewer plant and when it comes to grounding systems, I'm a little lost. The plant consists of several buildings and process areas with the main buildings being the control building, the filter building and the service and pumps building. At each of these building there are existing pad mounted transformers: Filter bld two 750KVA (with tiebreaker switchgear), at the control building two 750KVA (with tiebreaker switchgear) and the service bld two 500KVA (without tiebreaker switchgear..only one useable transformer). The secondary of all the transformers is 480/277V 3 phase 4 wire. In 1972 a ground system was installed throughout the plant but has since been compramised in several locations. My thoughts are to replace the broken wires, CAD Weld the new to the existing that's still in tact and implement several new ground rods. In the big mix of this nightmare I'm to specify two 750KW generators to operate along with the existing 750KW generator and make sure the ground system is correct. I have two PDFs of the plant that are too big to put on this post. One of the one line diagram and one of the grounding system that I've come up with so far. Please let me know if I should be using 3 or 4 pole ATSs with these gensets, and why.
email me for the PDFs or CAD drawings Thanks for your help
(Moderator’s Note: Edited to remove email address. If you wish to send an email message to this person, then first send a Private Message via this Forum, and ask for the email address.)
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