rayp1
Member
- Location
- Phoenix, Az, USA
Situation: Electrical room has switchboard with breakers feeding 25 dry type transformers. TX Sizes are 225kVA and smaller. The TX secondary feeds vary in length from 200 to 700 feet feeding electrical panels. Conductors will be installed in certified equipment grounding conductor cable tray. The electrical room is space limited. The option of placing a breaker at each transformer is now deferred to a switch board containing all 25 low side transformer breakers. This extends the unprotected secondary conductors beyond the 25 feet up to max of 50 feet for some of the secondary conductors to the proposed switchboard containing the breakers for the secondary runs to remote panels. The project is non-public access with 24/7 maintenance staff.
My question is: What if we don't install this switchboard containing low side transformer breakers. What are the risk?
My question is: What if we don't install this switchboard containing low side transformer breakers. What are the risk?