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noah
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« on: December 28, 2016, 02:03:57 PM » |
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I`m planning on changing the generator on my hydro system and I need a G83 sensor/relay. There was one on ebay about a year ago but they seem to be as available as hens teeth.
It occurs to me that any grid tie inverter will have a G83 circuit included: can anyone advise re using the smallest(cheapest) kit that I could paralel with a mains relay - or even find a broken one where the G83 bit still works?
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Tinbum
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« Reply #1 on: December 28, 2016, 02:28:09 PM » |
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I bought one of these; https://www.comap.cz/products/detail/mainspro/#Not cheap, but a nice package that seems to be used in many made up boxes by many companies. |
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85no 58mm solar thermal tubes, 28.5Kw PV, 3 x Sunny Backup 5048, 3x Sunny Island 5048, 2795 Ah (135kWh) (c20) Rolls batteries 48v, Atmos wood gasification boiler, Brosley wood burner, 2000lt buffer tank and 250lt DHW
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noah
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« Reply #2 on: December 28, 2016, 02:52:56 PM » |
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How much did it cost?
TVR does one for around £400 -
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Tinbum
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« Reply #3 on: December 28, 2016, 03:03:26 PM » |
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I'll look for the invoice. Try; IPU Group, Churchbridge, Oldbury B69 2AS T:+44 (0) 121 511 0400 F:+44 (0) 121 511 0430 M: www.ipu.co.uk |
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85no 58mm solar thermal tubes, 28.5Kw PV, 3 x Sunny Backup 5048, 3x Sunny Island 5048, 2795 Ah (135kWh) (c20) Rolls batteries 48v, Atmos wood gasification boiler, Brosley wood burner, 2000lt buffer tank and 250lt DHW
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Tinbum
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« Reply #4 on: December 28, 2016, 08:18:06 PM » |
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Having looked back I think it was about £500 inc vat.
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85no 58mm solar thermal tubes, 28.5Kw PV, 3 x Sunny Backup 5048, 3x Sunny Island 5048, 2795 Ah (135kWh) (c20) Rolls batteries 48v, Atmos wood gasification boiler, Brosley wood burner, 2000lt buffer tank and 250lt DHW
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rogeriko
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« Reply #5 on: December 28, 2016, 08:51:21 PM » |
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We install those units on our g59 connections of over 16a per phase, they are very expensive and are for 3 phase supplies. Why not just run your hydro system through a single phase grid tie inverter, job done, inverters are cheap on ebay. There is no g83 circuit in an inverter its just various programmable settings that will disconnect if necessary.
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« Last Edit: December 28, 2016, 09:32:58 PM by rogeriko »
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Tinbum
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« Reply #6 on: December 28, 2016, 09:21:27 PM » |
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85no 58mm solar thermal tubes, 28.5Kw PV, 3 x Sunny Backup 5048, 3x Sunny Island 5048, 2795 Ah (135kWh) (c20) Rolls batteries 48v, Atmos wood gasification boiler, Brosley wood burner, 2000lt buffer tank and 250lt DHW
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knighty
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« Reply #7 on: December 28, 2016, 11:05:42 PM » |
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I have a G35/G59 relay I bought from guy on here when I had a plan for a system... plan changed so it's spare now, happy to sell it to you for what I paid him for it (£100+p+p)
you'll have to give me a while to dig it out tho, I moved and have no idea where it is!
it's a simple relay, doesn't sync you up with the grid etc.. just disconnects you if there's a problem
I was going to use it for a CHP system, synchronize it manually and just have the relay in before the grid connection to keep the DNO happy
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noah
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« Reply #8 on: December 29, 2016, 12:18:15 AM » |
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Actually I need 3 phase - monitoring 1 phase is probably 99.9% reliable, but....
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bxman
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« Reply #9 on: December 29, 2016, 10:25:08 AM » |
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Tinbum
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« Reply #10 on: December 29, 2016, 10:40:56 AM » |
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Yes, I believe so. The eBay ones I linked to are a bargain. Remove the Eaton relay/contactor and replace with a 3 phase version, remove the input phase links and add the other 2 phases, reset the settings, job done.  |
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« Last Edit: December 29, 2016, 10:50:07 AM by Tinbum »
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85no 58mm solar thermal tubes, 28.5Kw PV, 3 x Sunny Backup 5048, 3x Sunny Island 5048, 2795 Ah (135kWh) (c20) Rolls batteries 48v, Atmos wood gasification boiler, Brosley wood burner, 2000lt buffer tank and 250lt DHW
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knighty
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« Reply #11 on: December 29, 2016, 11:55:15 AM » |
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Actually I need 3 phase - monitoring 1 phase is probably 99.9% reliable, but....
it is 3 phase :-) (I've got 3 phase here and was going to generate 3 phase) |
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noah
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« Reply #12 on: December 29, 2016, 07:14:58 PM » |
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Knighty -looks like the best/easiest deal - I will PM you.
To all : thanks for feedback
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