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relay bias currents

Why would a relay have bias currents such as this: http://www.teledynerelays.com/pdf/military/ca.pdf. Does it have somet...
1 comments posted 19yrs
posted by davidd31415
1 comments posted 19yrs posted by davidd31415

RS-485 communications

I am trying to use RS-485 to pull data from a process controller (Eurotherm) and send it to an HMI (AB Panelview Plus)...
0 comments posted 19yrs
posted by info
0 comments posted 19yrs posted by info

Cooaxial cable capacitance calculation

I wish to measure the capacitance of a coaxial cable.Is it a good approach to use LCR bridge Please give suggestions Tha...
4 comments posted 19yrs
posted by pfaisalbe
4 comments posted 19yrs posted by pfaisalbe

Power measurement

I am going to a customer site to measure machine power, while it is in an idle state. It has a 3 phase & neutral supply...
26 comments posted 19yrs
posted by crsc25113
26 comments posted 19yrs posted by crsc25113

Melting fuses

I have a brand new (Chinese) electric bicycle that melts (rather than blows) the 30 amp spade fuse every time I use it....
5 comments posted 19yrs
posted by Wilsc0mbe
5 comments posted 19yrs posted by Wilsc0mbe

Bank of Batteries ?

Hi again, I recently posted a question looking for plural nouns (MURDER of crows, PARLIAMENT of owls, BANK of batteries...
133 comments posted 19yrs
posted by oeieio_NOSPAM_
133 comments posted 19yrs posted by oeieio_NOSPAM_

Differentail Temp Controls

I have a variant of the "whole house fan " idea that I'm pretty happy with, and it occurred to me that a differential t...
0 comments posted 19yrs
posted by worpylorp
0 comments posted 19yrs posted by worpylorp

PD SIMULATION SOFTWARES

Hi Is there any Partial discharge simulation softwares available.Please suggest
0 comments posted 19yrs
posted by nishafaisalbe
0 comments posted 19yrs posted by nishafaisalbe

Cable Jointer

...................Hi All am Looking for Cable jointers 11 KV for my Excisting Project sombody Intersted (India)to work...
0 comments posted 19yrs
posted by vinodpillai.75
0 comments posted 19yrs posted by vinodpillai.75

PD injection

Hi all, I am testing a coaxial cable for partial discharge detection.I wish to inject PD pulse into the cable by using...
0 comments posted 19yrs
posted by nishafaisalbe
0 comments posted 19yrs posted by nishafaisalbe

Using forums for internal communications?

Has anyone used forums for team communications? I work at a test lab and with many simultaneous projects and three shif...
1 comments posted 19yrs
posted by davidd31415
1 comments posted 19yrs posted by davidd31415

Online course

Hi, I want to take up an online electrician course. How far do I need to go if I want to qualify to install wiring etc....
9 comments posted 19yrs
posted by scredcropshonnospam
9 comments posted 19yrs posted by scredcropshonnospam

wide band ct model in matlab

I am correcting the phrase.I wish to develop high frequency current transformer model in matlab.I am facing lot of prob...
0 comments posted 19yrs
posted by pfaisalbe
0 comments posted 19yrs posted by pfaisalbe

Simple variable AC supply?

Just for grins, I'd like to build a simple variable-voltage AC supply, an electronic Variac. I want variable p-p voltage...
15 comments posted 19yrs
posted by SparkyGuy
15 comments posted 19yrs posted by SparkyGuy