2010年3月16日 · You also need to consider the transformer derating needed if the peak occurs during hot wweather (air conditioning) or overload factor if the peak occurs when its cold …

2007年7月18日 · A phase can be lost for a variety of reason such a break in the conductor, opening of fuse opening, etc. Any reason that makes the power go away to a residential …

2021年7月19日 · For the first time, I want to design a 3ph HV utility transformer for an Apartment building with a switchboard rated for 120/208Y, 3000A, 65kA (AIC). Utility HV at proposed site …

2007年8月17日 · Some sources say that the electrical output of the transformer on the power pole is a 3 wire single phase, or others say it is 2 single phase 120V that have 180 deg of phase …

2021年2月16日 · The existing ground on the center tap of the 120/240 Volt transformer will safely ground the delta. You may see a 5 KVA or a 10 KVA transformer alongside a 25 KVA, 50 KVA …

2006年1月19日 · Typically, a small transformer is installed alongside an existing 120/240 volt lighting transformer. Short circuit calculations are for the purpose of selecting properly rated …

2014年1月7日 · US standard 25 kV loadbreak connectors have a maximum Ø-Ø rating of 26.3 kV, a maximum Ø-G rating of 15.2 kV, and 125 kV BIL. What is the maximum voltage of your …

2001年5月23日 · If the loads are balanced on either side of the 120V tap, you can still have your 13.8kVA total load on that leg of the transformer. you will again have to be aware that you …

2010年11月9日 · Computer-derived equations are applied to a generalized hypothetical 65 C rise distribution transformer. Hot-spot temperature curves, including the heating and cooling …

2006年10月6日 · With a residential 240/120v tranformer, assuming the load is balanced on the 2 phases, is there still neutral current because it is not a 3 phase system. Does a residential …