Latest threads in ⏚ Electrical Engineeringshow only best voted threads

Subject Author Posted Replies
 
Mini potentiometer w/switch?
Been looking for a miniature panel-mount pot (12 mm or alike) with single pole switch on the back (CCW = off). Not finding anything. All I see is those large 1W things.I've tried all the usual...
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13
 
Digital relay and Numerical relay
Dear friends, What are the differences between digital relay and numerical relay?
 
IED
Dear Friends, What is IED ( Intelligent Electronic Device)? What is the criteria to say a relay as IED as per standard?
 
Basic Electricity Lesson
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1
 
exiting ?
what exactly does the capacitor do in a exitation circuit in a small ac generator ? These machines have the output coming from the stator, and no brushes.
 
Reducing DC motor speed w/min components
My new cordless screwdriver runs on 7.2vdc Li-Ion batteries (pm brush motor). It's not variable but runs at one speed (2000rpm) which is nice when you need it, but for many tasks it's way too fast. I...
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27
 
What causes undervoltage?
Hi, In our small office network, we have about 12 different computers spread over 4 circuit breakers. Most of the computers are protected by UPS systems. However, many LAN switches are not.We leave...
3
3
 
Solar Panel 100 W Regulator
Dear members: I bought a solar panel, with a 50W regulator. The question is that I recently bought a second solar panel, and want to connect the two solar panels at the same time to get more energy...
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3
 
Which software for the daily construction report?
Hello, I am a building site supervisor and I'm searching for a good program to document the processes of the construction site. I search for something, where I can put in the names of the companys and...
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7
 
anyone knowledgeable about nec article 515?
I teach a class of electrical apprentices and would appreciate dialogue with someone on articles 511 through 516.
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3
 
please identify Plug type/manufactuer
i have equipement with US electrical plug see pic: is 460V 3ph plug up to 200Amp is it standard or military only plug can i buy receptacls for it in UE ??? i will be gratefull for any help with it
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3
 
US v european 3 phase generators
This may be a elementary question but here goes! I have been looking around for a generator to run a metal workshop for that last while. My criteria ar e a 3 phase, 30 - 40 kva genie running at 1500...
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2
 
What happened to toroid power transformers?
15 years ago there were (if I remember correctly) lots of toroid power transformers available. It seems that most of what is available now is the same old steel lam cores. Did the market price for tor...
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39
 
Replacement diff bus xcvr?
The part that has failed has these markings: LS1176 8AT D5HT This is the data sheet for it, I think: SN65ALS1176: although how to I tell if the failed one is a 65 or 76 prefix part? Searching local...
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2
 
Unfortunately, saying good bye
My current ISP(internet service provider) is planning to drop all newsgroups from their services, I've just read this one, and it doesn't seem to have all the trash advertizements, and off topic...
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5