Today's quiz question for all you EE's, real shop owners,
or anyone with the knowledge to answer is:
What about this setup is not allowing my compressor to run ?
If you remember a week or two ago, I asked about converting
my 3 phase motored compressor into something I could use in
my home garage. I have since acquired the proper motor,
a single phase 1 hp, wired it correctly, got the right pulley, and
mounted it to the compressor frame.
I just plugged it in, turned it on, and there is something in the circuitry
causing the motor to "cycle" on and off.
Now, let me fill you in on a few things at this point (details seem to help)
The compressor has what looks to be a pressure switch built in to the circuit.
The cap over this switch reads:
Pressure Switch AC 250 V 15 A
On 7.5 kg/cm2 Off 9.5 kg/cm2
Power comes from the 220 outlet, into the existing switch on the compressor.
This switch might be part of the problem, as it is stamped on the case as being:
Rating - 200/220 V .75 kW
Overcurrent Relay 3.6A
3 Phase 40 degrees C
Should I get another switch, NOT a 3 phase one ? Seems to the great
un-educated that would be the likely problem....Or is it something about the
pressure switch? Doubtful as the motor begins "cycling" on and off from the
very start, with negligible pressure built up in the tank. Sounds like the
on the pressure switch might be kinda short, only 2 kg per square cm, so I may
for another, wider range.
Mostly I just want the puppy to run to the point where I can get a good feel
9.5 kg/square cm is, not being all that "metrically inclined" either.
Thanks in advance for all your help,
Morgan Hill, CA