Search results

Thanks for suggestions. Yes it sounds like … a motor! I’m not sure yet how easily I can get to the other two but will see if I can compare heat next time. Every connection at motor, isolator and terminal block of panel seemed ok. I didn’t check the connections on the relay but will do.

Bit late to this party! In my area, Links and CEF generally have a tester day on the same day....and both then waste far too much time badgering all the sparks in the area to go to theirs. I play them against each other, got it down to £25+vat last year at CEF, and then I just take my main MFT...

Hi, I'd appreciate a bit of guidance from the industrial sparks here, I'm out of comfort zone! The setup is a wood pellet conveyer system with 3 motors driving an Archimedes screw, a vertical lift and another screw. I've been told the whole lot has run for 3 years without issue Last delivery...

Out of interest, was there a lot of PV in the immediate area? I had similar, and my suspicion was that in this upper class residential area a lot of early PV adopters without battery storage and lack of daytime loads was pushing the supply voltage up. I couldn’t prove it though.

To be honest, it’s just a light in a shed I’ve been known to overlook the lighting volt drop requirement as it simply doesn’t seem sensible since LED lighting has pretty much taken over. As you have said, the fact a customer could just plug in a light adds further fuel to the argument. When it...

I read the same but my knowledge of AC coupled battery setups stops at that Tesla thing…. Thanks for the reply.

Ok so next solar-newbie question - Can you use a hyrbid inverter without batteries connected? The underlying question is whether to get a hybrid inverter ready for the presumed addition of battery storage, or save a little money initially.

You need a micro-SD card. You put the firmware on it, stick it in the tester, turn it on, wait until it turns off, remove it, and off you go. I'm not updating mine this time until I finish a large testing job, but I've done it before and it was fairly simple.

@Phoenix - firmware 9.0.0 for X1 allegedly sorts out the auto-start of loop tests.

As mentioned above a clue can be whether a it’s an instant loud trip (magnetic mechanism) or takes a bit longer (thermal trip) If you are getting a quick mag trip then there’s a chance of a very very low continuity reading to help track it down. (Btw if it’s a glorious old Crabtree C50 board...

Thank you for the responses. My first question at the time was "Are you obliged to run the pumps 24/7" and was told "We are not obliged to, and there are certainly probably more times we could run only one, but they are filtering the water, heating and dosing the chemicals all at the same time...

The heating of the water is sorted already, they have a huge biomass pellet system on site. It's more the running costs of the filter pumps they are trying to reduce (long term)

Welcome from just down the road (ish)

Even in domestic supplies the DNO boys usually tell me that the PILC supply cables are often in significantly better nick than the cheap aluminium core concentric stuff that replaced them. What sort of CSA are the conductors? I'm intrigued how you would joint onto it and preserve the continuity...

Please be gentle - I don't normally venture into this area! A good and long standing customer has a conference centre with a swimming pool. The swimming pool has two 1700w filtration pumps that run 24/365. (the same pump system also handles chemical dosing and water heating via a heat exchanger...

Been there are done that. I like Megger gear - I know the 15xx series intimately, I had one that failed calibration, I got hold of a service manual and worked out how to calibrate it at home, and next time around it passed with flying colours. It's a very well made machine, in my opinion having...

In simple terms, the point behind Zs is finding out the impedance back to the supplier transformer, to see how much fault current can flow. This tells us whether the protective device(s) on the circuit will operate under fault conditions, and how long they will take to do so. It therefore needs...

In general terms, a low impedance earth path utilising a supplier provided earthing system is preferable as a live - earth fault should allow plenty of fault current to flow and an over current protective device to quickly operate (if the circuit is properly designed). That said, there are...

Hi I've yet to visit, but the potential customer reckons his mother needs a new heating system. Currently E7 only storage heaters. (On my list is to check for a teleswitch) I've only ever repaired storage heaters, or fitted new from scratch where I could first fix what I liked. I'm wondering...

Sure I meant his colleagues were suggesting listing 30ma as the RCD for the circuit, creating the wrong impression.