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Chris Lewis
 
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Default Excessive TS motor amperage?

According to Toller :

"Toller" wrote in message
...
I measured the current to the 8.6a motor on my table saw while ripping some
6/4 oak with a combination blade. I figure that is about the heaviest I
ever stress it.
It measured 9.1a.
What should I make of that? Is it normal to go over the rating on heavy
loads? I haven't had any problems; I was just curious what the current
would be.

small typo, the motor is rated at 8.4a, not 8.6a. 240v.


Well, there's always the question of how accurate the meter is - expecting
high precision in amperage and voltage measurements on AC circuits is a bit
of a mistake, particularly with normal "consumer grade" voltmeters.

That said, the plate rating is more-or-less the maximum amperage expected
when running the motor at the rated duty cycle/loading that you could
continue indefinately without overheating.

Chances are that you were loading the motor a bit beyond its ratings,
and the amperage reflects that.

It's of no great import for short periods, however, if you kept at it long
enough, there's a darn good chance that the motor will begin to overheat
and have the thermal protector cut-in.
--
Chris Lewis, Una confibula non set est
It's not just anyone who gets a Starship Cruiser class named after them.