Electronics Forum / Electrical Engineering / May 2008

Just had a new residential service box installed; replaced a 30 year old
Federal Pacific one which everyone said was not safe.
New box is a GE Powermark Gold Model TLM 2412 CCU (TLM 24 bc)
The box is rated for a 125 amp main breaker, and has spaces for 24  1"

Following are the specifications of an ammeter
Resolution: 0.01mA
Maximum Range: 200mA
Accuracy: plus,minus(2%+2Count)

My 5 months old LCD HDTV (a 19" Philips model with 1440x900 16:10 resolution
and PC input, mostly used for computer stuff) broke down yesterday.  It is
not completely dead.  It dies within about 10 to 20 minutes of being powered
on.  By "dies" it no longer functions and the screen ...

I have a house in Florida built in 1980's. There is an underground
service entrance, a meter can and a main disconnect panel which serves
the sub panel in the house as well as a few circuits outside (pool pump
and pool lights). There is a ground rod bonded to the meter can. (main ...

I am still trying to locate a web page with a diagram indicating how a
centrifugal switch gets implemented. I presume that the centrifugal part
is attached to the rotor, buy how does it activate a stationary switch
for energizing a starting capacitor?

Please help a student with the technique to solve this problem!!!!
A short digitally-encoded video clip is saved as a compressed file of
3,264,000 bytes. If the compression is 12:1 and there are 60 frames/
sec in the video clip, and each frame has a resolution of 128 x 170

I was wondering if I take the RMS voltage of a messy looking square
wave, a noisy square wave, with some measurement device, and I want to
know the regular current of the thing can I take the RMS current and
divide it by the square root of 2 in order to get my regular current?

Just curious:
The typical, older, residential electric meter, the kind with the spinning
dials that is mounted on the outside of the house:
Do they (usually) have fuses or other protection prior to entering the house

Could someone please help me. I need Hayt: Engineering
electromagnetics, 1981. 4th edition solution manual. It will help me a
lot if someone of you good people send it to me on my mail or post a
download link, torrent...

I do not have much experience with the nitty-gritty of how motor start
capacitors are rated. An electrolytic capacitor of about 140µF at 250VAC
failed on a small air compressor. It was replaced with a slightly large
capacitance in a smaller package. The motor is used an a 120VAC ...

Let me know the ratio/ level of Starting Current of a Synchronous
Motor ?
Normally i think it will be 4.5times the Full Load Current
Please give me answer

I'm not sure if this is the right place to ask, but here goes anyway.
There is a peculiar issue with the lighting circuit at our house, on
some of the upstairs lights, when the lights are switched off on the
wall, the CFL lamp in the pendant would flicker.

I am looking at exporting some industrial electronic kit from the UK
to the USA. Our EMC test house suggested we should have testing done
to FCC15, but looking at the standard it would appear that industrial
equipment is exempt, but that we should look at FCC18. Can anyone

A bit confused over terminology used for a typical interior
residential Load Center.
e.g., when it says the Breaker capacity is 12-1" -  20-1/2", does that
imply,

Does anyone know where I can obtain a 240 VAC, 3000-4000 W low watt
density ( 20wcm2) tubular immersion element made of 304 or 316 stainless
steel or inconel. The maximum outer diameter is 18 inches.
http://wantitnow.ebay.com/tubular-Heater-element_W0QQadidZ330227418862