Electronics Forum / Electrical Engineering / May 2005

My air-conditioner compressor stopped working the other day.   It's a
240 V. 20 Amp Circuit with a (20 amp - dual pole) fused disconnect
outdoors at the unit and a dual=pole ganged 20 Amp circuit breaker
further upstream at the service entrance.

Does anybody know of a way to create so-called "dirty" power? I have a
software application that runs on wirelessly connected computer systems
that seem to be seriously affected by power fluctuations. (It closes my
application unexpectedly.) I am trying to re-create this environment ...

Will a 30kw 440v (delta) 60hz motor run ok at 415v 50hz please ?
Thanks.
--
Smog

.
This is from other treads Ive posted on how one goes rummy via
accumulations of amyloid toxin in the brain.  It morphed into
this discussion and observation regarding career types and how

I'm an EE student and wondered what you think I should choose for 4th
year courses. Although I have chosen the courses I can still make
changes to the courses until May 27.
Courses for First Semester (Select 4 courses)

I can't find in the NEC a section about TECK cable.  Legally, is it
find to use this type of cable in industries ?  Where can I find
documentation about the cetification of a TECK90 type cable ?
Thanks

We have a picnic area that is remote from our house. We have a 3way
switch (weather proof) installed on an outbuilding that is about 150'
from our back porch. It is on the side facing the back porch and is line
of sight.

Despite efforts to standardize the normal power deliver voltage at
230V 50 Hz (at least on paper), Europe still seems to have a
collection of hopelessly incompatible power plugs and sockets as you
cross the old borders from Germany, to France, Italy, Switzerland,

A friend gave me a magazine artical and asked if I could build the
circuit it described.  The circuit was a text-book 555 timer running
as a 20kHz oscillator powered by a 9v battery.  The oscillator output
was to be connected to metal handles that could be held in each hand.

SITUATION
I have a 200 Amp electrical panel in my home. It's says QO Combination Load
Center Cat QO-40M  Ser T4.
I built a garage a few years ago and brought a 12/3 wire to it which I had

I cant find a Panel Surge Protector for 110 volts (main breaker is 30
amps..small Panel).   Menards has one for about $59 but its for 240 v.
-- not sure if it will work on a straight 110 v. panel.   Can you help ?
Thanks much.

Sorry for the length of this message, and if posting here may be
inappropriate.  But I hope someone can help me.  Thanks.
Background:
The light bulbs on my kitchen fan kept blowing, one by one, and eventually

I need a Win XP Registeration code. Please send it to my email address

When my home was built, they used about 9 junction boxes in the ceiling
of the basement for about 20 circuits.  These are all 15 or 20 amp
circuits.
I would like to replace the 9 small junction boxes with one large box.

I'm looking for software for Unilap 100e to download and analyse date.
Regards - Andrea.