Recent content by Bolty

Morning, As Crystal ball above said, isolate the supply to the motor, open the terminal box and if it smells burnt - chances are it's knackered. If the connections look ok, are tight & secure and there is not a distinctive burnt smell, then you'll need to use a multimeter or a megger and...

I think this is a link to the recent fatality. http://www.northernpowergrid.com/som_download.cfm?t=media:documentmedia&i=1676&p=file We were informed about this at work and the message reinforced that cast iron cut outs are to be reported and left alone. People who think that i'll just...

Swapping L1 and L2 is one way to change direction but i prefer the swapping over of 2 sets of windings. I find in some MCC's it's easier to get to the outgoing terminals to the motor then playing around with connections after the isolator or fuses. Swapping over U1 and V1 and U2 and V2...

Evening all, I can confirm butyl flex is fine in the cold down to about -15 without any problems. :D I had to use some to as part of a repair at a water pumping station a couple of years ago when the outside temp was -14 to - 5 for a few weeks (yep, scotlands a cold place at times!) and...

Looking at the diagram, can you connect the coil contacts through a normally closed contact from the opposite contactor?. eg the coil for p1 is fed from a n/c contact from op1 and coil for op1 is fed from a n/c contact from p1. (and the same for p2 and op2). This way only when then the peak...

Afternoon, A quick check of me handy fuse links chart/mcb chart for motors shows a 2.2kw single phase motor has a starting current of approx 108 amps for a duration of 3.3 ish secs. (assuming direct on line starting). The chart shows a 32a mcb will be suitable (just) but it will need to be...

motor overloads tend to be fairly accurate (well as accurate as you can be i suppose with a sliding scale for adjustment). Like i said before, don't assume the motor is duff. do your checks and watch it when it's running and see if it sounds ok etc. If the motors in a hostile enviroment...

A little more info is needed here methinks. What kind of load does the motor drive (pump, conveyor belt, gearbox etc). Overloads will trip usually after one of the following :- sustained overload, loss of an incoming supply phase or bad connection / open cct across a contactor, motor...

you'll need to discouss this with your local authority as each council seems to have it's own interpretation of what they need to know about regarding your household electrics. If your in the moray area, heres a moray council link that may help...

Evening, your tags show you as being in angus. If your near Dundee, have you tried any of the electrical wholesalers? Take one of your fittings and try Ross Electrical (branch of neweys) and see if the lads on the counter can help. Bolty.

Thanks for the responses. :D I agree the cut out is pretty much past its best by date but i suspect this job will be a bit more of a hassle to change as there isnt any pull on the cable as it appears to be plastered into the wall, so unless the henley cut out or whatever they fit will be a...

Don't panic - i've no deathwish to attempt to open this one up!. In my day to day work working within the water industry, we're forbidden from touching any cast iron cut outs and usually get them changed out but as this is a domestic case (mine), i'm a little unsure of the best path to take...

Heres a piccy from my cut out. Any idea on when these came into and out of service? Its a metal clad isco type and i'm in the process of trying to get my dno (SSE) to swap it out before i change the old wylex rewirable cu. The small looped green wire (4mm2) at the side is the main earth...