Hello I have been asked to assist in fault finding on the above refrigeration compressor the unit is wired as a part winding 20 HP 3 phase 415 volt 32 amp run current with an approximate starting current of 98 amps.
This is supplied from a 31KVA Stanford Genset.
The 50 amp “Schneider NSX100B...
When I used to switch on my iMac computer at the mains plug, then the computer switch, the computer start up sound would play immediately but more recently, the start up sound takes several seconds to start.
This is not a problem but I am very curious to know why this happens. Has anyone any...
Customer has a single phase 7.5kW motor running a blower for a grain lift and the 50 years old soft start is no more. Can someone recommend a replacement?
Dan said I could post about anything!
Great news!
My first thread will be musical...and include:
JN
BmcG
HF
AB
but I might just spread these over a few threads, rather than squander them all in one
Am I allowed to post links to YouTube videos? To make it easy for members to see?
Hey guys
Not sure where to put this.
I am due to start my level 3 electrical installation course this Sept.
I wanted to get abit of an head start.
Is there any decent books I can buy for theory purposes etc?
Hello all. I recently obtained my first ECS Electrical labourers card and am waiting for certificates to come back so i can attempt my AM2 in the not to distant future. I have much experience ON construction sites but only a very limited amount of experience in electrical installations, but I...
I've noticed the younger ones are changing the terminology of things throughout the building trade, I just wondered if the same thing is happening throughout the electrical world?
Hi
So after working for a company i have decided to go self employed and start my own business. people on checkatrade my builder and rated people are quoting so low the work isnt actually worth it plus the fees its basically working for a company again.
What are the classic methods of...
So I have 2 pumps, when i turn a selector on i want to start the first pump.
Once the selector was turned off and on again, I want to start the second pump.
And any time i repeat it i have to turn on the other pump which was not running on the previous startup.
How can i do this whitout a PLC ?
Hi My name is Bryn and I live in St Albans
I have currently done the level 1 domestic course the level 2 city and guilds 2365, the city and guilds 2382 18th edition and am 1 exam away from completing my level 3 2365 diploma.
I am applying for lots of jobs through agencies but not getting...
Hi all. Apologies if this is a dumb question but I am wondering if anyone can confirm any success stories of someone who got into the trade at late 20’s/early 30’s?
Long story short, I’ve recently come out of the forces and after a big chat with mates in different trades, they’ve suggested I...
Hello,
I am currently working with 2 separate circuits, one for the dust extraction and another for a circular saw.
Both circuits have an isolator with 3 phase and neutral then each goes off to its own dol starter.
I was wondering if there is a way to make them both turn on at the same time...
Hi, Can someone help point me in the right direction of where I turn to get a refund from college?.
Hi, this is not about an electrical course but I have done my level 3 2365 etc in the past and I know what to expect from a level 3 course.
I did a course at another college in Epsom and it was...
My dishwasher was failing, and I quickly found the problem was a failing capacitor on the circulation pump.
Marked as 2.5uF 400V. No problem, except not easily found locally. So I rummage around and find an old fluorescent lamp with a power-factor correction capacitor of the right value. Well...
Hi all, I have two three phase sanding machines that both have there own contactor start up. Both work fine. I have connected a dust extractor to them both. That also has its own contactor start up ad works fine. Its also 3 phase. How can I wire the the extractor to be triggered by either...
I am trying to add additional exterior lights to me car.
The battery is located to the rear of the car, rather than trailing wires right through the car. Can I wire the relay into the jump start terminals that are present in the engine bay? Would this still provide power for this?
Had one today I can’t get my head around. 4Kw motor connected to an Allen Bradley soft start. The panel runs 2 motors Both 4kw. I was called originally due to one motor not running. This turned out to be a tripped the motor circuit breaker (one with adjustable current dial). I tested the rest of...
Hi there, I have been with my employer for 8 years and I feel like the time is right for me to move on.
I'm looking to become self-employed working as a subcontractor to commercial companies whilst doing domestic whenever I get work come in. The plan is to have enough domestic work come in that...
Hello, I'm looking for advice from you guys who know the trade from inside out, I'm 24 years of age and just finished my Level 2 for electrical installations and also have done my 18th edition and building regs will be progressing onto Level 3 now.
The course I did was a 6-weekend course which I...
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