Toroid transformer no ouput

[eurikain]

Ok I'm sorry I made a mistake, the low resistance of the primary side was coming from my body --', so here are the measurements using a ohmmeter set to 1k ohms:

primary: no resistance
secondaries:
black+red = high resistance
orange+yello = high resistance
black+yellow = no resistance
red+orange = no resistance

That fuse you are talking about, is it possible to replace it as mentioned by @uli12us ?

[Graeme]

What do you mean by "no resistance" and "high resistance" ? I would expect to see less than 10 ohms between the Blue and Brown on the primary. I would also expect to see less than 3 ohms between the Red and Black as well as the Yellow and Orange. Can you let us know the actual values you are seeing.

[Clive S]

eurikain Follow Graeme instructions to the letter one step at a time. The fuse he was talking about would be the one you have installed not the one inside the transformer (if that has gone send it back under guarantee) .
I will butt out now as too many cooks spoil the broth and I am sure Graeme knows what he is doing.

[eurikain]

What do you mean by "no resistance" and "high resistance" ? I would expect to see less than 10 ohms between the Blue and Brown on the primary. I would also expect to see less than 3 ohms between the Red and Black as well as the Yellow and Orange. Can you let us know the actual values you are seeing.

I happen to have a meter that does not have a digital display but just an indicator. I will go borrow my friend's ohmmeter to have better readings this afternoon.

The meter sends 1000 ohms, so if the measured resistance is supposed to be 3 ohms, it is nearly impossible to see the indicator move. But fr the "high" voltage, I see it easily as the indicator goes to the maximum value. Do you understand what I mean ?

[eurikain]

Alright, just got the digital meter. Here is what I measured:

Primary 230V: 0 ohm resistance
Secondaries:
red+black = stable 5 ohms, peeks at 20-40 ohms (probably due the the meter ?)
orange+yellow = stable 5 ohms, peeks at 10-30 ohms (again, most likely due to the meter)
red+orange = 0 ohms
black + yellow = 0 ohms

Verdict ?

EDIT: @Graeme
I had not set up a fuse for the transformer. I only have fuses between the drives and the screw terminals.

[Clive S]

Alright, just got the digital meter. Here is what I measured:

Primary 230V: 0 ohm resistance
Secondaries:
red+black = stable 5 ohms, peeks at 20-40 ohms (probably due the the meter ?)
orange+yellow = stable 5 ohms, peeks at 10-30 ohms (again, most likely due to the meter)
red+orange = 0 ohms
black + yellow = 0 ohms

Verdict ?

EDIT: @Graeme
I had not set up a fuse for the transformer. I only have fuses between the drives and the screw terminals.

OK with the absence of Greame to save you time I think you are reading the meter incorrect in that the primary is open circuit ie infinity resistance and not 0. Does the meter have a continuity range? (ie if you short the meter leads together to make a buz) . if so does it buz when you connect it across the primary?
So you will have to send the transformer back.

[eurikain]

Yes it does have such a position :) Let me check :))

[eurikain]

Touching the meter pins together creates beeeeeeep.

Primary:
no beep

Secondary:
red+black = beep
yellow+orange = beep
red+orange | red+yellow | black+yellow | black+orange = no beep

[Clive S]

Touching the meter pins together creates beeeeeeep.

Primary:
no beep

Secondary:
red+black = beep
yellow+orange = beep
red+orange | red+yellow | black+yellow | black+orange = no beep

That confirms it the primary is open circuit so see if you can send it back under guarantee.
What you have done is put a dead short across the secondary and burnt the primary out. Next time put a fuse in.
Its called a learning curve so don't get disheartened.

[eurikain]

:'( Oh well.. I will call rapidonline tomorrow morning, see what we can do.
Where am I supposed to put that fuse you are talking about ? Can you show a wiring diagram ? How many amps does it need to be ?