eQUEST Transformer Loss - incorrect error if < 1

3 posts / 0 new
Last post

Hi Brian,

I?m not sure which version of eQuest you?re using. Version 3.64 defaults to
0.02. If you right click on the transformer loss box you can change this to
whatever you want.


Shaun Martin's picture
Joined: 2011-09-30
Reputation: 0

Hi Brian,

I went deep into this rabbit hole some years back, rolling my own custom
curves along the way to quantify savings for premium efficiency
transformers... I can look to my notes/records later, but don't recall any
such "nonstarter" errors along the way.

It might be productive to transpose your efforts into a dummy model to
explore whether the same error occurs using equest 3.63... Something may
have changed since then which you could be the first to stumble into!

Nicholas Caton's picture
Joined: 2014-12-09
Reputation: 0

The transformer loss in eQUEST should be the fraction of output power lost
at full load. It should be in the order of 1 to 3% so an input of 0.02 for
example. However the range checking in eQUEST is looking for a value
greater than 1 (in the range of 1 ? 1.5). A value of 1 does in fact double
your electrical usage (with ? going to Pumps and Aux for the transformer
loss) so the range checking is in error.

Is there a way to access and change the error checking values?

Thank you.


bfountain's picture
Joined: 2011-09-30
Reputation: 201