After stacking and racking solar and wind dc to ac inverters you end up with some very high AC amperage that needs total control and then the possibilities to be able to switch with other power sources thru island style connections.
Trying to transfer power from one type of power source and then to another type of power source makes for some interesting switching methods and then throw in high amperage transfers also, the safe way is automatic transfer.
Trying to transfer power from one type of power source and then to another type of power source makes for some interesting switching methods and then throw in high amperage transfers also, the safe way is automatic transfer.
When trying different methods of switching high amperage AC or DC usually switchgear, bus bar duck,step up transformers, step down transformers and other devices are required for a distribution switching system. The basic theories of the higher the voltage less the amperage draw for the same wattage being driven can lower cable cost, but the final high amperage is the final step to have total control over safely, which usually is a electrical switchgear configuration.
Example 10,000 12/volt dc inverter (wattage/voltage=amperage) is 4 times more efficient at 48/volt dc double it again to 96/volt dc and once again we have a amperage drop for the same wattage being driven. Numbers never lie! 10000/12=833.33 amps 10000/48=208.33 amps 10000/96=104.17 amps. By increasing the voltage the amps to drive the same wattage drops meaning less pull on battery banking wattage load draw. By stepping this dc voltage up massive amounts of electrical power is possible because numbers never lie.
As the voltage increase so does the source for good engineering talent come into configurations that will stand the test of time. The complex jigsaw puzzle involved to combine solar and wind into the grid at high amperage from those sources of renewable energy or any other KW/KV AC island style voltage connection type. With the higher voltage battery banking to DC to AC inverters are more efficient but greater detail to control of those higher voltages by engineers to have run the numbers. I followable this guy on Google+ he is very knowable in Electrical Engineering.
In an article written by Electrical Engineering Portal 1/13/2016
About Author //
Edvard Csanyi
Edvard - Electrical engineer, programmer and founder of EEP. Highly specialized for design of LV high power busbar trunking (<6300A) in power substations, buildings and industry fascilities. Designing of LV/MV switchgears.Professional in AutoCAD programming and web-design.Present on Google+
Identify these 4 things and lower facility’s electricity bill
http://electrical-engineering-portal.com/identify-these-4-things-and-lower-facilitys-electricity-billNot only do the AC high amperage loads need switching transfers to be PLC controlled but the DC system are another switching cycle for PLC controlled on/off float voltage battery bank string sets.
One part of the article that was of most interest was the Atomic Transfer Switches From Grid To Solar & Wind. Always looking for quality off the shelf products to migrate into various mini microgrid components this article gave great details about the reliability of transformers and gave some great ideas as to the placement of those transformer locations. So I went looking for this 600-1600A ATS by Eaton to find out just what this product was all about?600-1600A ATS Eaton
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Description Relay Ideal for small-scale control applications, the ZEN provides an economical alternative to discrete timers, counters and generalpurpose relays. This single unit easily provides relay, timer, counter, and time switch functions. Wiring work is greatly reduced because separate wiring is not required for devices such as timers and counters. Programs can be easily written, saved, and monitored by personal computer. Programs can also be simulated on the personal computer without connecting to the ZEN. Communication models with an RS485 interface allow production line conditions to be remotely monitored by monitoring the ZEN control status.
Applications Designed for use in automation for commercial and industrial sectors, ZEN programmable relays provide the ideal solution for lighting, energy management, industrial control, watering and pump control.
Are you totally confused yet or onward we go. Numbers never lie let's keep going
In short it is very easy to take all this PLC automation control and make switching high AC amperage automatic with quality products. So why stop at these set voltage numbers why not keep raising not only the AC but the DC battery float voltage as well for each step up? As in past blogs by series wiring batteries together in chains increases voltage but DOES NOT increase AH example 2 12 volt batteries positive to negative is 24 hook another 12/volt battery in and it is 36/volt and on and on till the float voltage is reached for that string. In theory then for the same wattage load being driven the less the amp pull will be taken from the batteries by increasing the float voltage. By then tapping that stored DC AH banked float voltage and driving DC to AC inverters to step up once again the AC from secondary to primary voltage drops the amps in theory. See numbers never lie and when it comes to electrical power it is an amazement of devices, theories, craftsmen and engineers and many many options.
retired master electrician with 42 years experience can consult you online/onsite with mini micro grid power my goal here is to give you hope = helping others power everything and home = helping others make electricity. Both of those can be achived very easy with free clean safe reliable sinewave electrical power from dc to ac hybrid mini microgrid systems.
D B Electric
Description Relay Ideal for small-scale control applications, the ZEN provides an economical alternative to discrete timers, counters and generalpurpose relays. This single unit easily provides relay, timer, counter, and time switch functions. Wiring work is greatly reduced because separate wiring is not required for devices such as timers and counters. Programs can be easily written, saved, and monitored by personal computer. Programs can also be simulated on the personal computer without connecting to the ZEN. Communication models with an RS485 interface allow production line conditions to be remotely monitored by monitoring the ZEN control status.
Applications Designed for use in automation for commercial and industrial sectors, ZEN programmable relays provide the ideal solution for lighting, energy management, industrial control, watering and pump control.
Are you totally confused yet or onward we go. Numbers never lie let's keep going
In short it is very easy to take all this PLC automation control and make switching high AC amperage automatic with quality products. So why stop at these set voltage numbers why not keep raising not only the AC but the DC battery float voltage as well for each step up? As in past blogs by series wiring batteries together in chains increases voltage but DOES NOT increase AH example 2 12 volt batteries positive to negative is 24 hook another 12/volt battery in and it is 36/volt and on and on till the float voltage is reached for that string. In theory then for the same wattage load being driven the less the amp pull will be taken from the batteries by increasing the float voltage. By then tapping that stored DC AH banked float voltage and driving DC to AC inverters to step up once again the AC from secondary to primary voltage drops the amps in theory. See numbers never lie and when it comes to electrical power it is an amazement of devices, theories, craftsmen and engineers and many many options.
retired master electrician with 42 years experience can consult you online/onsite with mini micro grid power my goal here is to give you hope = helping others power everything and home = helping others make electricity. Both of those can be achived very easy with free clean safe reliable sinewave electrical power from dc to ac hybrid mini microgrid systems.
D B Electric
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