What make is it?
Switched fuse spur question
- Thread starter RobTi
- Start date
Why not? A boiler, even the CH pumps and controls, will not usually represent a significantly large load, even at startup. My CH system (with three pumps and umpteen MVs) certainly works fine off a diddy cheap-and-nasty genny with no problem.
... and, like Simon, I have my entire CH system supplied via a plug, to facilitate changing to an alternative power source if/when necessary.
Kind Regards, John
My genny, or the boilers that won't run from some gennys ? My genny is an unbranded (AFAICS) one that I bought from a mate when he closed up his business. Fairly basic, poor regulation, but TBH it does most things I've asked of it.
I suspect it's not to do with power drawn, but with the quality of the power supplied. I have heard of cases where the load and supply have interacted in "interesting" ways. I recall maaaany years ago at a dealer training session for the Mac II being told (warned) that it "disliked" some types of UPS - again I suspect a non-sine supply causing confusion to the electronics in the PSU.
I suppose that's possible - but would presumably apply to a wide range of things in addition to boilers.
My boiler has no electronics, hence no PSU, all the electricity does is to 'enable' the gas valve
However, I've tried my cheapo genny with a wide range of electronic loads, and never had a problem - so if boilers can be fussy, I presume that they must, for some reason, have particularly susceptible PSUs!
Kind Regards, John
Quite a few generators, especially very small ones, are now "inverter" models. I assume they employ double conversion (from genny to DC (simple rectification), then DC to AC) to provide an electronically controlled output with stable frequency, voltage, and waveform. I also assume that the genny is a higher frequency device (multi-pole like a car alternator) making it smaller for a given capacity - only permitted if you then do a double conversion to the required 50Hz output.
But ultimately you have a low stability device feeding into a very complex load, hence scope for instability. When running from the mains, the grid is very stable - you're not going to unsettle a big (hundreds of MW) steam turbine with a small PC attached to the mains.
But ultimately you have a low stability device feeding into a very complex load, hence scope for instability. When running from the mains, the grid is very stable - you're not going to unsettle a big (hundreds of MW) steam turbine with a small PC attached to the mains.
OK. Fair enough - I can see that there is then scope for problems, but I did not expect that cheap small ones would be "inverter" ones.
Kind Regards, John
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