⏚ Electrical Engineering

power factor transformer difference

Can power factor be different in each side of a generator transformer that's connected to an infinite bus (grid)? Examp...

4 comments posted 19yrs

posted by disposable1

4 comments posted 19yrs posted by disposable1

how did you decide what to study in grad school?

Hey, my name is mike, and i am inclined to go to graduate school to learn more about electrical engineering. However i...

2 comments posted 19yrs

posted by bres6486

2 comments posted 19yrs posted by bres6486

Automatic transfert system between 3 or more supply

Hi everubody, does anybody know a device that does an automatic power transfert between at least 3 (or even more) source...

0 comments posted 19yrs

posted by janos

0 comments posted 19yrs posted by janos

Light switch troubles.

So, I installed a new fan,one that controlls dimming and fan functions from a stand-alone switch that you can mount to...

1 comments posted 19yrs

posted by sgt_calle

1 comments posted 19yrs posted by sgt_calle

Cable Specification

How all power cables are designated. For e,g Aluminum - XLPE - Armoured cable is designated as AYFY - in cable manufact...

2 comments posted 19yrs

posted by govindarul

2 comments posted 19yrs posted by govindarul

GD Square of a motor

I want to know about what is the GD square ( Gyrational Torque) of the motor. I am aware that higher kW motors for e.g...

0 comments posted 19yrs

posted by govindarul

0 comments posted 19yrs posted by govindarul

VHF fm Antenna & House Metal Screen Question

Hello, Never thought about this before, but have started wondering. Good question for all you experts out there. Live i...

1 comments posted 19yrs

posted by rgsros

1 comments posted 19yrs posted by rgsros

Skin Effect Ratio

What it mean that skin effect ratio in Bus Bars ( Both LV and HV systems ) vendors are specifying that skin effect rati...

1 comments posted 19yrs

posted by govindarul

1 comments posted 19yrs posted by govindarul

Exe Enclosure for VFD duty motors

For hazardous areas whether Exe (intrinsically safe), Exd (explosion proof) enclosure are are used for Variable frequen...

0 comments posted 19yrs

posted by govindarul

0 comments posted 19yrs posted by govindarul

Earth Fault Relay Setting

I have 6.6kV resistance grounded system ( Earth fault current limited to 100A) in that for all outgoing feeders includi...

1 comments posted 19yrs

posted by govindarul

1 comments posted 19yrs posted by govindarul

Hunter ceiling fan problem

A neighbor broke the pull chain switch in his Hunter ceiling fan. The switch has 4 positions, low, medium, high and off...

2 comments posted 19yrs

posted by lagertnospam

2 comments posted 19yrs posted by lagertnospam

Just purchased 12-3 wire, but really don't need the red wire - OK to not use one of the wires?

I am finishing my basement, and bought some 12-3 romex NMB for a screaming deal. However, I don't need the extra red wi...

5 comments posted 19yrs

posted by BARRELBACK

5 comments posted 19yrs posted by BARRELBACK

Powering a PDU

First of all I am not an electrician by any means so this is probably a noob question. I recently bought an EMC Connect...

3 comments posted 19yrs

posted by brisnehan

3 comments posted 19yrs posted by brisnehan

Help- Inverter n Battery Question

I'm not into electronics and don't know how to do the calculations.. Hope someone will be willing to help me. I have an...

3 comments posted 19yrs

posted by blah

3 comments posted 19yrs posted by blah

Paper Cutter Next Door Causing Power Surges

Okay, I have a PC repair shop with everything on battery backups. Next door is a printer company that recently installe...

9 comments posted 19yrs

posted by John_Novikoff

9 comments posted 19yrs posted by John_Novikoff