Power transformer sizing
Power transformer sizing
(OP)
Dear Folks,
In our project specifications, I have seen the sizing calculations of transformer and is calculated by:
(continuous load X 1 + Intermittent Load X 0.3 + Stand-by Load X 0.1) X factor of safety(1.2)
Anyone pl. explain how to calculate factors for intermittent loads and stand-by loads and if any standards (IEC / IEEE) available, pl. let me know.
Advanced thanks...
In our project specifications, I have seen the sizing calculations of transformer and is calculated by:
(continuous load X 1 + Intermittent Load X 0.3 + Stand-by Load X 0.1) X factor of safety(1.2)
Anyone pl. explain how to calculate factors for intermittent loads and stand-by loads and if any standards (IEC / IEEE) available, pl. let me know.
Advanced thanks...






RE: Power transformer sizing
I would estimate as follows:
1.Continuous - 100%
2.Intermittent Load x a diversity factor that you determine.
3.Stand-by Load - I do not understand why this is a separate
load. Is it Continuous or Intermittent?
RE: Power transformer sizing
RE: Power transformer sizing
Stand-by load means redundancy like (one is unit is operating and other is stand-by). so what factor we need to consider for stand-by loads.
Thank you,