Something I've been meaning to do for a while, but never quite got around to, is to build an isolation transformer unit. So, I was pretty happy when I got my hands on a couple of identical 240V to 24V 96VA step down transformers in good condition.
They look well made and are pretty heavy with a 1 Amp slow blow fuse on the primary and a 5 Amp slow blow on the secondary. So, they've allowed for a slightly higher output current than the rating otherwise indicates. There is one primary winding (240V) and one secondary winding (24V loaded).
My plan is to connect the secondary windings together (so 240V in and 220V-ish out) with a 1 Amp slow blow on the load side. However, whilst the current draw is fine for most light project work, inevitably you'll attach a poorly understood load and end up blowing fuses all the time. I won't include a diagram on this occasion, since the setup I described is trivial.
So, my question is simple, is it recommended to install a current limiting circuit (or component) to limit the output current to below 1 Amp or is this overkill?
UPDATE: Andy asked that I measure the magnetizing current into the transformer pair and, as much as I like a good old spark-off, the results are quite interesting (to me anyway!).
I left one of primary windings open circuit, then I soldered the two secondaries together. I connected the other primary winding in series (hot side) with a 100W 1 Ohm resistor. The DMM is a trusted true RMS model and I measured the resistor with a very accurate LCR meter, which turned out to be 1.04 ohms.
Powering up the circuit and applying 240V mains I read 0.146V AC(rms) across the resistor. If I'm not mistaken that's over 200mA peak magnetizing current draw, which I must say I found pretty amazing. Anyway, there you go.