We are planning to install 2 additional neutral conductors on a 3 phase, 5 KV circuit (2 circuits for redundancy). The conductors are underground. The entire run will cover 11 manholes at about 3000 feet. We are looking at different options and the correct way to do it. First option is to pull...
Does anyone know of vendors that can supply padmount transformer 1500 KVA, 34.5KV delta - 480Y/277 secondary, copper both windings, padmount or substation type will do? We are trying to support the relief efforts in Haiti. This transformer will power up the berthing barge(suppose to come in the...
Greetings,
We have a problem of overheating cable/conduit here. We have 3 sets of wire coming from the swithcgear on the control room. The 4" conduit that is penetrating the flooring is overheating. Cables are installed one conduit for each phase? Is the conduit acting as a CT that is it is...
Greetings,
I have a spare NF panelboard(new one) and I would like to make good use of this for our DC application (120VDC) but I cannot find the rating of this panelboard. Does anyone here have any idea on the DC rating of this panel?
Greetings,
I am not familiar with FOC that's why im posting this question. Can someone provide me with a basic materials/equipment to provide a FOC backbone to various locations.The FOC run is approximately 10 miles with 21 individual buildings serve.This will be done overhead to save extra...
Greetings,
My boss will be sending me to attend a FAT for the Medium voltage switchgear we are about to install.The thing is, this will be my first time to attend this. Can you provide me tips of what i will be expecting?I am now starting to gather informations from NETA and other publications...
jghrist,
does galvanized steel shield a requirement? i ask that because i have lot of copper conductor(4/0 awg and 1/0 awg)that was left over from previous project. instead of buying a new one might as well make good use of it.
Thanks
jmmee97,
all these issues are covered since we are the one maintaning the utilities. the customer are on top of the situation since they want this ballfied finished on schedule.anyway im just thinking of putting a static wire(copper) on top of the new poles to serve as lightning...
jghrist,
the contractor didn't notice this until they're done after they set the pole foundation(can you believe that!).
david,
can i just install maybe a dummy pilot wire on the new poles to serve as lightning protection.am i violating any codes?
HI All,
There is an ongoing construction to build a ballfield. Steel poles are being installed for the lightings and it was found out that these poles are near the transmission lines.(about 4 feet). Our best option is to install new poles parallel to the existing to meet the code requirements.My...
All,
Any suggestions on how to sound proof or minimize the noise coming from 3 muse generators(1500kw each).We are thinking of installing a 20 feet wall around the perimeter but I know if this approach is the best.Maybe one of you already encountered this kind of problem. These DG's are in close...
