⏚ Electrical Engineering

Power relay with control winding. -- Help

I'm looking for a relay (SPDT or DPDT) that runs off of line voltage, and has a second winding for control When power i...

5 comments posted 17yrs

posted by jimbo

5 comments posted 17yrs posted by jimbo

A message from Mother Goose & Grim to us all.

Greetings, While searching for alternative energy information I came across ,what I consider to be, the best "GREEN" ca...

0 comments posted 17yrs

posted by wbiszick

0 comments posted 17yrs posted by wbiszick

New GFCI's always use electricity?

I understand that old GFCI's would not use any electricity if nothing was plugged in to the outlet.... The new GFCI's h...

3 comments posted 17yrs

posted by billnomailnospamx

3 comments posted 17yrs posted by billnomailnospamx

Lenze

has any one had experience with the Lenze 8200 inverter? I need to know what the symbol is the goes between terminal 62...

3 comments posted 17yrs

posted by djoh6186

3 comments posted 17yrs posted by djoh6186

how does power consumption for a battery work for a wireless device?

Hi, I'm trying to model power consumption in one of my simulations for a wireless device, does anybody know how it work...

4 comments posted 17yrs

posted by osheikh81

4 comments posted 17yrs posted by osheikh81

bamix

Anyone tell me how to remove flange on bamix to allow dismantling?

4 comments posted 17yrs

posted by haggisz

4 comments posted 17yrs posted by haggisz

First time

Am happy to join this group today am an engineer i work on generators and agricultural machineries if you want informati...

0 comments posted 17yrs

posted by Chinedu2moses

0 comments posted 17yrs posted by Chinedu2moses

Local use of generators

As a generator mechanic in a locality in lagos we encounter a lot of unusal problems that we solve most times with local...

0 comments posted 17yrs

posted by Chinedu2moses

0 comments posted 17yrs posted by Chinedu2moses

Motion sensor alarm

Hi how can I make an alarm (if possible) from those motion sensor lights (or any other inexpensive alarm ideas). I want...

7 comments posted 17yrs

posted by scredcropshonnospam

7 comments posted 17yrs posted by scredcropshonnospam

Overdriving Fluorescent Lights - Comments?

This is well done but should we??? http://www.geocities.com/teeley2/overdrv1.html

3 comments posted 17yrs

posted by chuck

3 comments posted 17yrs posted by chuck

Rapid Start or Instant Start Ballast Type?

I have been looking for an easy way to determine which lamps use which type of ballast to show people. This says it all...

0 comments posted 17yrs

posted by chuck

0 comments posted 17yrs posted by chuck

Smoke detector with earth leak feature

Hi all, I am wondering if such a thing exists: A Smoke-detector which you plug to the electric socket: if it detects sm...

7 comments posted 17yrs

posted by qmu

7 comments posted 17yrs posted by qmu

Multi-tube fluorescent sign ballast mystery

I am helping a friend who owns a restaurant fix the marquee sign in his front parking lot. The sign was working fine fo...

3 comments posted 17yrs

posted by chuck

3 comments posted 17yrs posted by chuck

inductance equation for three phase chokes

Is the below formula is correct for designing 3 legged 3 ph inductors L=(0.4x3.14xNsquaredxAcx10exp-8)/(lg+MPL/um) Modi...

5 comments posted 17yrs

posted by shefrahman

5 comments posted 17yrs posted by shefrahman

Xbox connections live Tingle

While hooking an Xbox to the TV the output cables gave a tingle? What causes the tingle? I have felt a slight tingle whi...

2 comments posted 17yrs

posted by kilowatt

2 comments posted 17yrs posted by kilowatt