I promise you will never forget this any more! kW = voltage x current x pf We say the better the power factor i.e. the closer to 1 the better… So: Say 34.4kW= 400V x 100amp x 0.869(pf) Say 40kW= 400V x 100amp x 1(pf) – You get more kW with bad power factor…or do […]
All the years I chose a contactor based on the current rating on the box. But then I begin to put the product database together (see electrosource.org) and the differences is vast. So who is right and who is wrong…is the Americans or is the Europeans right (Both can’t be right? I choose a contactor […]
The relay requires an auxiliary supply to operate the electronics then we are going to connect the current “reading” phase to the current measuring input terminals. These might or might not be isolated from each other… ===>>>OOPS…You are not logged in for this group!
I sent an email to a global manufacturing company… This is what I receive back: Sorry he cannot receive mail anymore – send your mail here xx.xx. and never hear from them again. I realise the contact in my email might have died and when receiving mail for him might cause some emotional stir (I […]
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When I was researching some online references I noticed how many sites go into having to select the correct components for installations and the obvious just jumped to mind… In this day and age, though it is always good to know how one gets to the selection, all manufacturers and the standards keepers like the […]