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  1. ElectroChem

    UK 31 yr old starting an apprenticeship in Sept - any general advice, inc. tools I need + how to prep?

    Sounds like you've got a great opportunity in front of you, and coming in with the right attitude. I started my apprenticeship at 31 in Australia, so I'm not sure exactly how the rules on what an employer must provide differ. I've always bought my own tools as I'm particular about what I like...
  2. ElectroChem

    in-line Wago connector

    I should clarify. Yes. they're designed for stranded cable, but if you try to shove too large a stranded cable in, the edges will catch and fray. Putting a ferrule on solves that problem but also increases the CSA by the amount of metal in the ferrule, hence smaller rated sizes for stranded vs...
  3. ElectroChem

    in-line Wago connector

    I think you can get a larger solid core in there because the fine strands will catch and fray on the edges of the terminal if you try and shove one in.
  4. ElectroChem

    Power Factor correction of a Diesel GenSet

    3 a/b - Generators hate leading (capacitive) power factors. The reactive power pushes voltage back into the windings, causing issues with regulation. You would absolutely have to take that into account. That said, it's quite uncommon to have heavily leading loads outside of some very esoteric...
  5. ElectroChem

    Power Factor correction of a Diesel GenSet

    It's not that this genset has a PF of its own, more that the nameplate is describing the nature of the load it can support. This generating unit can drive a load of up to 2000MW (which btw is a MASSIVE diesel motor, like run-a-city-power-station-size, so I'm thinking 2700KVA/2MW is more...
  6. ElectroChem

    RCD tester recommendations?

    Hi gents, after some product advice from those who do test-and-tag on a semi-regular basis. We've got a customer with an MCC where all the circuits are RCD protected but there is no neutral anywhere in the panel, it's 3P+E only. (I know this for a fact because I was the one pulling in the...
  7. ElectroChem

    What is an electric "amp"-?

    If only @justcurioustwo could emulate your example.
  8. ElectroChem

    32a three phase isolator neutral bar?

    Ah, that explains quite a bit, and means I must also apologise if I went a bit hard at you. I was treating your question like a tradesman was asking "What's a screwdriver for?" rather than a learner looking to learn.
  9. ElectroChem

    32a three phase isolator neutral bar?

    As above, looks like a standard enclosure that the manufacturer could use for everything from single to six-pole isolators. Yours clearly started life as a 3-pole, with the 4th tacked on. I can think of at least 3 scenarios where your neutral would not go through that pole, from isolator...
  10. ElectroChem

    32a three phase isolator neutral bar?

    Reminds me of one job where we used a 4 pole isolator for a large motor. 3 poles for the motor and the 4th for the cooling fan, with the fan neutral unswitched.
  11. ElectroChem

    32a three phase isolator neutral bar?

    Could be used if you didn't want to switch the neutral in that application, cuts down on number of SKUs to stock.
  12. ElectroChem

    Configuring motor to run off single phase?

    I am puzzled by this. You're using £20,000 worth of battery banks and inverters, but can't spring the few hundred quid for a 1-3 VSD to smoothly run the original motor? Priorities much?
  13. ElectroChem

    How can you get into the industry?

    I'll chip in on the 'never too late' bandwagon. I was 31 when I started my apprenticeship, and yeah it sucked applying for every job in sight with no responses.
  14. ElectroChem

    Does Tesla Power Wall receive DC from the panels?

    Tesla designed their battery to be system agnostic, it can work with any inverter (or none, as just a quasi-UPS). If Tesla supplies an inverter, it becomes their problem. Very unlikely to be 80A coming down. 360W solar panels in a series string usually have a max current of <10A, so even two...
  15. ElectroChem

    Best way to connect up air compressor

    Very nice. MV or LV?
  16. ElectroChem

    "Solar into Grid Tied Inverters" is going to die off?

    I doubt they'll need to disconnect entirely, but the days of loading up your roof with panels and getting paid to feed into the grid are numbered. Eventually most homes will be limited to supplying their own needs and maybe a little to their neighbourhood, depending on the local voltage.
  17. ElectroChem

    "Solar into Grid Tied Inverters" is going to die off?

    Indeed, and it's even more of a problem for us over here in the land of the great death orb in the sky. I think long-term integration of domestic PV is going to require inverters that can be controlled in their back-feeding and/or intelligent transmission and transformation grids that can turn...
  18. ElectroChem

    4mm/2.5mm T&E

    Anywhere really, the standard in Oz is for 2.5-6mm2 twin and earth to have a 2.5mm2 earth conductor. Probably related to the fact that we use C-curve MCBs as our standard breakers, quite uncommon to see a B32 here.
  19. ElectroChem

    4mm/2.5mm T&E

    I'd be happy to send you a few rolls, postage might be a bit much though. :)

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