# 3KVA 3PHASE Transformer

Discussion in 'Homework Help' started by SHAMHOS, Jan 18, 2015.

1. ### SHAMHOS Thread Starter New Member

Jan 18, 2015
2
0
am about commencing my school project which is about 3 kva 3 phase step up transformer, can the able members of this forum help in guiding me please?

am defending this project as well providing its circuit diagram as well priniciples of operation.

Last edited by a moderator: Jan 18, 2015
2. ### #12 Expert

Nov 30, 2010
16,670
7,314
What have you done toward starting YOUR school project?

Apr 5, 2008
15,799
2,385
Hello,

Perhaps the following query might give you the needed information:
3 phase transformer

Bertus

Jan 15, 2015
1,044
268
What exactly do you want to know or need some help with? For example you mention 3 KVA but you don't mention the Line Voltage (Primary Voltage), Load Voltage (Secondary Voltage) or the current. For a 3 phase transformer you would have Volts * Amps * 1.732 / 1,000 = KVA. The 1.732 is a constant and is the square root of 3 since you have 3 phase power.

Ron

5. ### SHAMHOS Thread Starter New Member

Jan 18, 2015
2
0
sorry for late replies, its a 3phase step up, 240v accross all input lines, but wish to have different rating voltages across the output terminals. we are always having challenges with the course lecturer thats why am not too fluent at it, but i wish this forum can help me become a better machine power student.

6. ### amilton542 Active Member

Nov 13, 2010
494
64
A three-phase transformer sounds a bit over ambitious and dangerous for a "school project", but who am I to judge. On top of that, opposed challenges with the course lecturer who's going to send their students away to play with three-phase alternating current who have little insight into what they're actually doing does not sound good.

nonso likes this.
7. ### nonso New Member

Apr 11, 2011
1
0
EE 101- Safety first When it comes to HV system

Jul 18, 2013
10,836
2,509
What configuration do you need? Delta Star? Delta Delta? etc.
Max.