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Messages - snowman18

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1
General Discussion / `GE Multilin Motor Protection
« on: August 29, 2020, 06:03:56 PM »
This is something that may interest Glort, one shown in the image is not mine but same model


2
Now that my truck has passed its once in a lifetime inspection ( as long as its registered to me ) time for a fuel modification.

Plenty of plans on the net on how to build a gas producer, they all work but I'm not impressed with the makeshit carburation.

I would much prefer using something made by Impco, similar to mixers used for LPG or NG, probably look to the local scrap yards for a used system.

Adding a turbo to the engine would help with horse power.

https://www.ourair.org/wp-content/uploads/catfuelsdoc.pdf

4
Everything else / Re: Privately Owned Solar Array
« on: July 13, 2020, 09:47:57 PM »
Rep from the vendor that supplied the equipment don't want to talk about it unless he's on the $$$ clock.

Every so often I pick another electricians brain, John tell me this solar system at 600 volts is a low voltage system - could have fooled me.

Anyhow John figures the system is load unbalanced, but but the system at the moment is only feeding back to the grid. Say one third of the panels were faulty in one of the three rows which all feed into this transformer.




5
Everything else / Re: Privately Owned Solar Array
« on: July 13, 2020, 01:51:36 PM »
Got it figured, but having trouble convincing the IT people who maintain our internet service.

The ISP installed electronic gear inside the electrical utility building that services the bin yard when switchgear for the solar changeovers take place it creates a ripple which in turn creates an electrical magnetic storm inside the building.

6
Everything else / Re: Privately Owned Solar Array
« on: July 12, 2020, 01:27:19 AM »
The solar array uses Switchgear, inside there's a mechanically ( motorized ) operated load break interrupter.

The interrupter is much to slow in terms of the electronic needs for the radio repeater, any loss in power the system has to reboot.

The reboot at the bin farm lasts about 20 minutes, once service is restore to the repeater radio and the signal once again beamed into our village the routers supplied by the service provider take another 20 minutes to establish an IP address.

Dynamically assigned IP address versus static.

7
Everything else / Re: Privately Owned Solar Array
« on: July 11, 2020, 02:53:11 PM »
Today sunrise 5:44 am ↑ (53) with this mornings internet interruption at 7:43:28 a.m.

Looks like the solar array storage battery's need recharging before dumping back to the grid, in the evening those storage battery's are depleted within minutes and the evening internet interruption coincides with sunset.

8
Everything else / Re: Privately Owned Solar Array
« on: July 11, 2020, 01:54:17 PM »
... Has dirty inverters emitting lots of EMF which is the source of a problem .......

EMF ?     https://en.wikipedia.org/wiki/Electromotive_force

what about EMI ( electro magnetic interference )
https://en.wikipedia.org/wiki/Electromagnetic_interference

Thanks for the correction, yes should have said EMI.

9
Everything else / Re: Privately Owned Solar Array
« on: July 11, 2020, 01:52:38 PM »

Phases don't influence the output, they just do it that way to stop pushing one phase too high relevant to the others and to avoid pumping too many amps down one line.

Depending on the location of the array, in summer I'd guess 3-500 Kwh a day.

The EMI on inverters here is VERY low by regulations. Many work off US standards so I would be surprised if yours is much different.
I would also assume ripple is pretty low as well.  It would have to be throwing some pretty significant radiation to influence your wireless internet from 1.5  miles away.

How do you know it's this causing the interference problems?

Our ISP has a repeater mounted on the high point and the inverter for the array resides inside the white building.

Internet outages coincide with sunset and sunrise, I suspect it has something to do with the private system being switched onto or being disconnected from the grid.


10
Everything else / Re: Privately Owned Solar Array
« on: July 11, 2020, 05:20:28 AM »
Never mind this system is 100kw and its grid tied. Has dirty inverters emitting lots of EMF which is the source of a problem which interrupts our wireless internet service.

11
Everything else / Re: Privately Owned Solar Array
« on: July 11, 2020, 02:59:22 AM »
Glort the solar array is 3 phase, how many kw do you figure this set up is capable of producing during the longer days full of sunshine.

12
Everything else / Privately Owned Solar Array
« on: July 10, 2020, 08:50:48 PM »
Located 1.5 miles from my home, 300 solar panel array. Set up as three phase.


13
Everything else / Re: Lister Powered air compressor
« on: July 10, 2020, 06:09:20 PM »
Refrigerated air dryer but your most economical solution would be to hand a burlap sack laying against the current dryer then trickle water down the burlap to make a swamp type cooler.

14
Engines / Re: Electromotive Series of Metals and your Engine
« on: May 31, 2020, 01:19:25 AM »
Engines laid up for many years, connecting rod bearings are made from an alloy which contains tin, on our list Ti is more reactive than iron so over time connecting rod bearings will react to galvanic corrosion.

Roller and ball bearings and their races contain chromium which reacts with iron, aluminum pistons are way above in the list and the most reactive metal in your engine.

If you have a bit of scrap aluminum kicking about take some sandpaper and make a small area shiny clean. Within hours the cleaned spot will have acquired a thin layer called a passive layer.

The passive layer is kind of self healing, drill a hole or scratch aluminum the passive layer soon appears.

We've all seen how aluminum corrodes as it ages when a steel fastener has been used to bolt two pieces of aluminum together, looks like rot.


15
Engines / Electromotive Series of Metals and your Engine
« on: May 31, 2020, 12:48:55 AM »
A boat used in salt water will use a sacrificial zinc anode to protect the metal parts from premature corrosion.

Boats berthing at a marina should use a "shore power isolation transformer" while connected to shore power otherwise any boat in the marina with poor or non existent anodes connected to shore power will suck the life from your boat via electrolysis.

Boats used in fresh water use either a sacrificial aluminum or magnesium anode, the domestic hot water tank in your home will also have either type of anode factory installed.

Sacrificial anodes should be checked periodically and replaced as required. And this goes for those of you using heat from your engine to heat water for domestic or other use.

Install the appropriate anode it will add years of life to your engine. Liquid cooled engines often suffer from cylinder liner porosity caused from electrolysis, inhibitor's added to coolant can slow the process.

The list below, the electromotive series of metals, as a precious metals refiner the list is of importance to me.

For instance if I had a multi species liquor and only wanted the precious metals recovered from it then I would use scrap copper. All the metals above copper would be unaffected and remain in solution. Bla Bla Bla.

Each metal on the list above another reacts with all those below it and none above it, having basic knowledge of the series will help you understand galvanic corrosion and how to prevent it.




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