Don't worry Meski, there are significant protections against that, nothing is melting - I believe it's even illegal to interfere with the grid.
On Thu, Jul 25, 2013 at 12:40 PM, mike smith <[email protected]> wrote: > It'd be a worry trying to put 240 into a grid that was at 235... > Something would melt. My money would be on it not being the grid that > melted :) > > Mike > > > On Thu, Jul 25, 2013 at 12:35 PM, Tony Wright <[email protected]> wrote: > >> Just spoke with my brother about it. He says unfortunately with grid >> connected solar you are still affected by the voltage of the grid. In his >> case, he can disconnect from the grid and in that case it outputs at 48v, >> then an inverter(?) boosts it up to close to 240v (48 x 5). He has measured >> and it is usually sits around 235 volts when he does this. But when he is >> connected to the grid, he gets wild fluctuations which he says he's proven >> are caused entirely by the grid and not his solar set up. His voltages have >> been between 245 and 267 at times (in Brunswick.) >> >> He says you might be able to make a complaint to the grid authority >> because your voltages are outside of Australian Standards, which he says is >> +/-10% around 240 volts (so a minimum of 216 volts) >> >> >> On Thu, Jul 25, 2013 at 12:15 PM, Paul Keen <[email protected]>wrote: >> >>> I am a complete novice in this area but does rooftop solar have any >>> impact on supply problems like this.**** >>> >>> ** ** >>> >>> Paul**** >>> >>> ** ** >>> >>> ** ** >>> >>> *From:* [email protected] [mailto: >>> [email protected]] *On Behalf Of *GregAtGregLowDotCom >>> *Sent:* Thursday, 25 July 2013 12:04 PM >>> *To:* 'ozDotNet' >>> *Subject:* RE: UPS**** >>> >>> ** ** >>> >>> No UPS is going to generate power for you. You’d need a generator for >>> that.**** >>> >>> ** ** >>> >>> Do United Energy have any sort of service level agreement? Or any >>> agreement on what the tolerance should be? In the end, it sounds like you >>> need new cabling to your area and only the supply company can do that. Last >>> time I looked at this, the guarantees that they provided were very limited. >>> It was almost as though if anything came out of your power points, you >>> should be giving thanks to them.**** >>> >>> ** ** >>> >>> People have been successful in giving the electricity companies a hard >>> time about quality of supply but it’s a hard road. I know of one in >>> Queensland where they eventually gave in and power conditioned his whole >>> house just to shut him up. (Mind you, he’s also been banned from the High >>> Court as a serial pest so you can imagine the lengths that he was prepared >>> to go to).**** >>> >>> ** ** >>> >>> Is there anything else in your street that could claim a strong need for >>> better quality supply? For example, anyone on sensitive medical equipment? >>> **** >>> >>> ** ** >>> >>> A lot of computing equipment used to be rated as 220V +5% -10%. Those >>> devices should be fine. But those that are 240V nominal might be a problem. >>> I recall that Western Australian areas with 250V nominal used to be a real >>> hassle for some equipment.**** >>> >>> ** ** >>> >>> In desperation, I’d suggest trying:**** >>> >>> ** ** >>> >>> 1. Finding computing equipment that’s designed for 220V rather >>> than 240V. (Some power supplies have switches on them, and you might be >>> able to order a different power adapter for a notebook)**** >>> >>> 2. Get a big transformer (eg. 2KVA) wound for something like 215V >>> in and 240V out, then use a UPS.**** >>> >>> ** ** >>> >>> Regards,**** >>> >>> ** ** >>> >>> Greg**** >>> >>> ** ** >>> >>> Dr Greg Low**** >>> >>> ** ** >>> >>> 1300SQLSQL (1300 775 775) office | +61 419201410 mobile│ +61 3 8676 4913fax >>> **** >>> >>> SQL Down Under | Web: www.sqldownunder.com**** >>> >>> ** ** >>> >>> *From:* [email protected] [ >>> mailto:[email protected] <[email protected]>] *On >>> Behalf Of *Stuart Kinnear >>> *Sent:* Thursday, 25 July 2013 11:50 AM >>> *To:* ozDotNet >>> *Subject:* UPS**** >>> >>> ** ** >>> >>> I am suffering major degradation of power supply over these winter >>> months. The voltage drops to 204V during peak load periods and sits any >>> where between 215 to 230 during the day.**** >>> >>> ** ** >>> >>> Contacted United Energy several times - they are playing tricks like not >>> turning up when the problems are manifested and measuring the power at >>> midnight & saying it's OK. Talk to the technicians & they say that because >>> I live at the end of the street & there are several new units >>> tough >>> luck charlie. **** >>> >>> ** ** >>> >>> What I am thinking is to get a decent UPS that would regulate the >>> supply, but I am not sure that they would work over a number of hours. It >>> would need to support 6 PCs. Does anyone have any recommendations ? >>> **** >>> >>> ** ** >>> >>> -- >>> >>> ----------------------------------------------------------------------------- >>> Stuart Kinnear >>> Mobile: 040 704 5686. Office: 03 9589 6502 >>> >>> SK Pro-Active! Pty Ltd >>> acn. 81 072 778 262 >>> PO Box 6117 Cromer, Vic 3193. Australia >>> >>> Business software developers. >>> SQL Server, Visual Basic, C# , Asp.Net, Microsoft Office. >>> >>> ----------------------------------------------------------------------------- >>> **** >>> >> >> > > > -- > Meski > > http://courteous.ly/aAOZcv > > "Going to Starbucks for coffee is like going to prison for sex. Sure, > you'll get it, but it's going to be rough" - Adam Hills >
