New landfill gas generating site with a unit substation (15kV-480V) installed on a containment pad. There is grating from the top inside of dike wall to equipment pad. Edge of pad extends 1'-6" from front and rear doors of 15kv gear. So as you approch the front and rear of the gear you are met...
Recently upgraded a large manufacturing facilities lighting from 400W HID to high bay flourescents with integral occupancy sensors. Everything went well and the areas looked great upon completion. Project will pay for itself in 2 years with energy savings since old lights burned 24/7/365...
Replacing some PCB containing surge capacitors in a 4160V compressor motor termination box. Contractor reccomends replacing the short length of cable also. Here's our dilema the existing cables are non sheilded. If we replace this short length with sheilded cable as required by the current...
Designing some motor feeders that are routed in rigid steel conduit on an outdoor piperack. I am confused as what to use for the ambient temperature to determine if ampacity adjustment is required. Should I use the warmest average summer monthly high temperature, the areas record high...
Working on a project were the utility company has requested a grounding bank be connected to the primary of their 12KV delta-wye transformer used as a generator step up for (3) 480V landfill gas generators. It will be located outdoors on a pad with the utility transformer and wired to the...
Brothers,
I have been asked by an equipment supplier to size a CT for ground fault protection on the primary side of a 1500KW 480-34.5KV land fill gas generator. The available fault current at the transformer primary is 2000A. I assume that they will want to detect much smaller magnitude...
