Loss of power through CT midi

[Bigchasbroon]

Yesterday I was cutting a sheet of 18mm (3/4) ply with my ts55 and it was struggling. I put a freshly sharpened blade in, no real improvement so I unplugged it from the midi and put it straight into the transformer (both are 110v machines)

Has anyone else had this problem? Is it normal or is there a fault? I've had them a while now and haven't noticed the problem before.

 

[wrightwoodwork]

It is possible that you might have being exceeding your transformer continous rating if cutting a lot. Also I presume you had the sheets where well supported so when you were cutting they didn't sag and pinch the blade. Do you have another transformer to try to see if their is maybe a fault there

 

[Bigchasbroon]

There's no power loss whith the saw and midi each plugged straight in but I suppose one socket might not provide enough for both if the output is split somehow in the tranny. I've a neighbour electrician I'll ask him.
It's just the midi only has a few months of warranty left so if there is a fault I'd better get it sorted now. There is a sticker which says max 500watts but the festool rep told me it was rubbish and it'll take the ts55 no problem

 

[semenza]

Is the outlet one that you have been using right along without problems or one that you haven't used before?

Have you tried the combo in a different outlet on a different circuit?

What is the breaker amperage on the circuit?

Has the combo worked on the transformer before?

Seth

 

[ostwest]

I know this problem, encountered it myself.
Short answer is reduce the power on midi (go turtle) and ur TS55 will work it should. there is enough suction from midi to pull dust up even on lowest power.
Going into more detail: 110v on 16amp plugs( standard site yellow in uk) can only carry aprox 1700 watts. Your TS55R is 1200W(on setting 6) and midi is 1200W on max(rabbit). it makes your combo 700W over the capacity and something gets less power or the power is shared (my electricity  knowledge is blurry beyond that point).

 

[Bigchasbroon]

Thanks guys I guess I'll need to turn things down a bit or not go through the midi. Or get a 5kva transformer and overdose on porridge!!

Seth it was in a customers premises but as I said when I went direct to the transformer with ts it was fine.

Thinking about it it's probably happened before but I've just blamed it on blunt blades. Maybe I've been sharpening my blades too often [embarassed]

 

[ostwest]

i dont think bigger transformer will sort it, but try on a big site with those big transformers. i think its only uk 110v that suffers this kind of pain caz of "your safety" rubbish

 

[wrightwoodwork]

All transformers have a continuous rating. The higher the kva the higher the continous rating. So the bigger the wattage load you can run at once continually. What the transformer says for kva, it can only do that for a short time, then has to cool and the reset button pressed. I have a 3.3 kv transformer it's continous rating is 1800 watts I can power the saw 1800 and the vac 1200 watts. It will run them just fine for cross cuts and the likes of short cuts, but when it comes to ripping a lot of timber and the saw is running at max 1800 after a while it will trip. In them situations I use another transformer and the problem goes away

 

[joiner1970]

Interesting about reducing the suction speed to turtle might try that on mine. I always do several shallow passes on chipboard worktops because it dies if you try to do it in one.