industrial transformer selection

Thread Starter

tahir mehmood

Joined Jun 28, 2013
27
Dear Professionals;

can you people help in selection of a transformer whose technical details are as under:
Primary Voltage : 230v/3-phase/60 hz
Secondary voltage : 380 V/3-Phase/60 Hz.

Total load = 400 Amperes.

i Just need the transformer selection.
 

Ramussons

Joined May 3, 2013
887
I think you better give a schematic of what you want. The definition of 230V 3 Phase is not clear. If each Phase to Neutral is 230 Volts, it would mean 440V phase to phase.

What is the Transformer to be used for?
 

Thread Starter

tahir mehmood

Joined Jun 28, 2013
27
Dear Ramussons the transformer primary voltages are 230v line to line and 110v line to phase.
the total load is 400 Amperes and we are going to install this transformer for our newly installed factory i.e. for industrial use,which may include inductive load of motors,lighting,and many more.
 

Johann

Joined Nov 27, 2006
190
Dear Ramussons the transformer primary voltages are 230v line to line and 110v line to phase.
the total load is 400 Amperes and we are going to install this transformer for our newly installed factory i.e. for industrial use,which may include inductive load of motors,lighting,and many more.
230V line voltage and 110V phase voltage? If the primary is Star(Wye)-connected, I get 132.8V.

The total load you are referring to, is that your secondary line current? (263.27kVA)

Looks like you'll have to settle for something between 300kVA and 500kVA
 
Last edited:

Ramussons

Joined May 3, 2013
887
Dear Ramussons the transformer primary voltages are 230v line to line and 110v line to phase.
the total load is 400 Amperes and we are going to install this transformer for our newly installed factory i.e. for industrial use,which may include inductive load of motors,lighting,and many more.
If the Phase to Phase is 220 and Phase to Neutral is 110, it's not 3 Phase. it is 2 phase in opposition.
 
Top