Lets first confirm we are on the same page:- Surge protection gets installed in parallel from the main supply, so it is inevitable that the wire sizes for bigger installations will be an issue for an installer and secondly:- If there is no protection on the SPD and due to lightning or accident the protection […]
Been working with star/delta starters for many years and not once did this cross my mind…I guess those were the days when energy conservation was not an issue.
I bought this Lovato softstarter, I am commissioning it now and it trips on thermal overload BUT I NEVER INSTALLED A THERMISTER.
Selecting the right relay for the job…Between relay manufacturers with the type and characteristics – can one take for granted the relays will be able to do the same job. If you bought a cheap relay, make sure you install and use it correctly…otherwise you can kiss it goodbye in a short while… Bought a […]
Do not make the same mistake I made with relays… When I populated the product database for Electrosource I discovered the max voltage is actually 400V. 250V is the voltage arrived/tested at to qualify the Ith rating of 10A (for the single changeover versions e.g. 40.31 & 40.51) and 8A (for the double contact e.g. […]
A relay SINGLE CHANGEOVER DIL(Dual inline) RELAY might be rated for some amperage but it does not mean the bases SINGLE CHANGEOVER TERMINALS qualifies… Now you know what I am talking about
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 […]
The challenges of markets with limited stock content. I happily bought my new machine and has been running for 6 months then the forklift driver reversed into the machine and broke one of the sensors completely off… I know what I want…I can see the part number but I cannot find this spare locally. Luckily […]
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 […]
Index: Online Libraries. Online resources. Education Web contacts MicroProcessors
