Transformer help

[hkyle]

[Nick]

[hkyle]

[kevinsatterfield]

[hkyle]

[hkyle]

[glenn_aircooled]

hkyle, I am electrician. I am not 100 % expert on transformers. I do know
the basics. I need to know couple of things to help you.
Did you have Transformer with 12 turns Secondary?
and did you just take off the 12 t and put on 15 t.??
-
Normally you need enough turns to get a decent magnetising coupling.
12 or 15 turns is not many turns.!
-
Transformers are simply a ratio..... Say 600 Turns Primary : 75 t on secondary.
Thats 8 : 1 ....... So 120 V Primary : 15 V secondary....
The current will also follow this ratio - however the wire needs to be able to
handle it as well.
1 Amp Primary : 8 Amps secondary..... Oh yes its inverted , so that the
same power in ( 120 x 1 = 15 x 8 ...... the input and output power are both 120 Watts. )
All very simple.
The most common problem with Tx not working is break in wire. You can
check with multimeter - should be certain resistance from 1 to 10 Ohms
or something........
But yours may not have enough turns to get magnetic coupling, I just
dont know your TX.

[hkyle]

Glen_aircooled...Thanks for the reply. I beleive that I cut off the primary side of the transformer NOT the secondary side that I wanted.....So needless to say I will be starting from scratch.
Is it possible for me to start from scratch with these transformers? Meaning to rewire the primary and the secondary side to get the voltage and amperage that I want?
What I want is to put 10 transformers all in series with 1000watts. So 1 transformer would have 100watts of power on the primary. I want the secondaries to have 2 to 5 volts and 20 to 50 amps. give or take....
Anyway I talked with a transformer engineer down in the states and he said that this is possible.
What do you think?