Selective Coordination, Short Circuit & Arc Flash Studies
I gathered and compiled site data of multiple AT&T Data centers and updated their power distribution system records, focusing on their overcurrent protection devices and motor loads. I recorded SLGI data on breaker setting, transformer X/R factors and impedance, stand by generators sub-transient and transient impedance and KVA ratings of motors and generators, to get a clear understanding of the factors effecting the power distribution system, after I compiled field data to be imputed into E-Tap and worked with senior engineers and CAD managers answering any questions of what I saw in the field. To finally perform selective coordination, arc flash, and short circuit studies. (110.16, 130.5.(D), and 645.3 of the NEC (NFPA 70. Required for data centers)
Projects included:
• AT&T Alburn Power System Study
• AT&T Chico Power System Study
• AT&T Fair Field Arc Flash
• AT&T Fair Oaks Power System Study
• AT&T LDICA02 Arc Flash
• AT&T Mount Shasta Power Study
• AT&T Napa Power Study
• Sac CO waste Management Arc Flash (Equipment Shop)
SKM System Analysis Software
Using SKM System Analysis software I performed selective coordination, and different electrical studies for two distribution systems within a single station for a future electric light rail system.