Tuesday, February 23, 2016

Shed Kits

Shed Kits from Home Depot can be purchased in various sizes and types. Or can be custom built for any application

 1/16 in. x 4 ft. x 8 ft. Plastic Panel

They make excellent greenhouse out buildings when insulated and finished on the inside. 

Added electrical power to operate any thing from 120 volt outlets and security lights to 240 volt ballast 1000 watt HPS with 240 volt timer control and HVAC for year round use.

Above Photo Controls
1-100 amp 240 volt Subpanel
4-240 volt 24 hour timer
4-2 kw 240 volt outlets timer controlled
4-1000 watt HPS 240 volt
1-HVAC thru the wall 240 volt 3 kw
1-parr flood motion light on 1-single pole switch 120 volt
2-interior lights on 2-single pole switches 120 volt
3-wall outlets 120 volt
3-ceiling outlets 120 volt
4-additional 1000 watt HPS is designed into system for additional load with plug and play operation

With Spring right around the corner D B Electric has been busy building these kits for clients one farmer had a cooler for his asparagus to be cooled down to 38 degree fahrenheit built and another had a greenhouse timer controlled for all types of vegetables, both had the thru the wall HVAC 240 volt. Contact D B Electric for all your grid tied or off grid electrical needs, we also can assemble shed building kits or custom build one for any application. 

HOME = helping others make electricity 


Thursday, February 18, 2016

600 amp dc switching contactor

A source for off the shelf quality switching dc contactors at http://www.ametekswitch.com/DC-Contactors/DC-Contactors-JEY48-Tabs.aspx gives battery banking bus bar connenctions easy for bolt on  appliciations.

Series negative to positive connection of float voltage batteries gives the required float voltage but the AH battery rating does not increase. Example 4 100 AH 12-volt battery series connected will equal 48 volt dc 100 AH. To increase AH parallel neg to neg and pos to pos would give 400 AH but only 12 volt dc.

String sets of float voltage batteries can be contactor controlled to make massive amounts of dc to ac electrical power possible. High amp contactors makes switching these string sets possible and very easy the hard part comes with PLC automation dc switching control to pull fault sets or charging sets offline as required to battery drain percentage. This is what D B Electric calls smart switching on the dc side of mini microgrid electrical power. PLC SCADA interconnects with grid utility and can take solar, wind, hybrid electrical power for back feed when systems are producing more than they are using onsite.

Electrical grid utility sinewave power can be matched to quality high end dc to ac microprocessor controlled inverter electrical power with switching transfers so fast that computer & clock resets are not needed. In either 50 or 60 hertz single and 3 phase with voltages matched to clients needs.

Small building blocks of off the shelf electrical power is possible by purchasing supplies as funding is available and island style connections in steps to achieve your own mini microgrid  electrical power. Electrical power is very easy to safely produce with total control and protection. And with quality materials that have years of off the shelf life cycles for trouble free reliable and dependable electrical power.

D B Electric offers freelance consulting with 42 years experience. D B Electric can show you how easy off grid or grid tied electrical power is. It's all in the numbers your ac monthly wattage load matched to different forms of alternative energy sources (wind, solar, hydro, hybrid) can lower, stop, or legally back feed into grid power and many other options.

D B Electric
email www.offgridpowerdbelectric@gmail.com
HOME = helping others make electricity https://plus.google.com/communities/117129171927843774104
website www.dbelectric.weebly.com
Face Book https://www.facebook.com/D-B-Electric-131032206946094

Friday, February 12, 2016

Kick Single Phase AC to 3 Phase Static Phase Converter

480 volt 3 phase light circuits from single phase power

Static Phase Converter
240 volt single phase to 480 volt 3 phase

Different methods are available to make single phase electrical power into 3 phase electrical power. 

The reason for these higher voltage ages are that less amperage is consumed for the same wattage being operated. Example wattage/voltage=amps 120 volt single phase load at 1000 watt 1000/120=8.33 rounded off is 10 amp draw. Kick the voltage up for the same 1000 watt load to 480 volt and see the savings 1000/480=2.08. 

Matching wattage loads is simple by totaling wattage to quantity of light fixtures operated at different voltage levels to determine lower utility cost or off grid to lower battery bank drain. Then size breaker protection at the higher voltage in 3 phase subpanel to control the required loads. 

Once again it comes down to another switching point and breaker protection to control load to PLC smart microprocessor controlled island switching that has SCADA options

Endless options for free electrical power is possible by adding solar & wind for netzero metering, green energy, off grid  electrical power and island style control on both dc & ac voltage levels.

Three phase electrical power can lower amp output by higher voltage increasing mini micro grid electrical power can be building blocks off the shelf built in stages as an investment that pays for itself and opens other electrical options as a charging sources for electric autos, crop watering remote power, telecom, cabins. 

Electrical energy is a pure sinewave in utility grid transmission and generation that can be easily matched to power transfers from different sources added together to made an island style connected system aka mini micro grid electrical power. 

D B Electric

Tuesday, February 9, 2016

Conext XW+NA Solar Hybrid Inverter System

Conext XW+NA Solar Hybrid Inverter System 

One solution for grid-tie backup and off-grid solar (120/240 VAC)

ConextTM XW+ is an adaptable single-phase and three-phase hybrid inverter with grid-tie functionality and dual AC power inputs. Available solar charge controllers, monitoring, and automated generator control modules enable further adaptability. From a single Conext XW+ unit to clusters up to 102 kW, the Conext XW+ is a scalable system that allows for the integration of solar capacity as required. Adaptable and scalable, the Schneider ElectricTM Conext XW+ system is the one solution for grid-interactive and off-grid, residential and commercial, solar and backup power applications.

The many options available are.

Automation and Control

Being in the Square D family gives many options for the Conext XW+NA Solar Hybrid Inverter System and its up to 102 KW with stacking options. For homes, business, ranches, agriculture, farms, crop watering, telecom, cabins, remote off-grid, villages. In either single or 3 phase ac outputs. Being a hybrid it is designed not only for solar but wind also. Available solar charge controllers, monitoring, and automated generator control modules enable further adaptability. Being built by Schneider Electric it is compatible with there family of other products aka Automation & Control.

 Contact D B Electric for consulting options by a retired master electrician.

Off Grid Island Style Connection 

Step Up Line Side
The higher the voltage the less the amp draw for the same wattage being operated!

amperage X voltage=wattage

120 240 volt ac single phase 200 amp = 48000 watts
48000/240=200 amp load
7200 volt ac primary to lower amp draw 
48000/7200=6.67 rounded off to 7 amp draw

Stepping up the ac input on line side of the off grid dc to ac inverter systems
(battery bank to dc to ac pure sinewave inverter single or 3 phase KW to KV)

Stepping down the load side of the offgrid onsite for secondary load outputs 
(battery charging, 

Step Down Load Side
These systems can safely operate homes, cabins, ranches, farms, agriculture, telecom, villages, micro grid in single or 3 phase voltage options.

D B Electric

The 48' Reefer Trailer Experiment Off Grid

Don't try this yourself I am responsible for my own actions and not that of others

Be prepared to be jacked with by the authorities, thieves, nosey neighbors and the downright curious. 

The mission 1 year totally off grid with zero incoming utilities,  and in total poverty! This is home make the best of it!

 Using off the shelf products from Harbor Freight and chain brand lumber stores this will be your home for living and lab work/research on solar, battery banking, dc to ac inverter power.
The refer part of the refrigeration system has been removed inside and out with plywood attached that a tilt out vinyl double pane window can be installed for emergency escape access. Dividing the lab and living quarters with a insulated wall capped off with OSB in the center giving 2 24' sections mechanically room and living quarters with insulated 36" door. The only heat source is a lp vent free wall mount heater.

By now you are either totally curious, confused or wondering what the hell is this all about? 

This is total survival and quick fixes will either save your ass or you can freeze to death in a polar vortex winter, The research that was being conducted was dc 7/24/365 emergency power, load testing modified sinewave inverters 12 dc parallel battery banking to 120 volt ac. Testing was being conducted into running dc lighting circuits with QO Square D breaker control. Using NMB romex cable with ac single, 3 and 4 way switch types but all on DC voltage. 

Being a retired master electrician and retired volunteer firefighter I was always told this was not possible and was very unsafe. So I conducted 1 year of hands on research into this and did not find any problems or faults. The dc wring was home run to Square D QO and was true series circuit connected in plastic boxes to switches using ac keyless plastic lights on 12 volt with screw in bulbs all on DC voltage in round plastic boxes. I found no errors, fires, overheating or faults

 The biggest complaint was 6 solar panels 15 watt each could not keep the battery bank going for long. It would keep up with with light fixture load that was it for the solar panels.  As for the modified sinewave inverter were that loads like household appliances (refrigerator, upright freezer, coffee pot, New WAVE Ovens, Microwaves, vacuums, tv sets, ect)  took a lot of power and would drain 10 semi style new deep cycle batteries quickly. A gasoline 8000 watt generator would run 3 different ac to dc battery chargers paralleled connected going at once for rapid recharging, each battery charger on its own amp rated charge controller. 2 hours of generator run time would give 8 hours of battery life usually. Inverter dc to ac power that set low voltage will trigger complete shutdown of the entire inverter leaving all ac lights, outlets without electrical power. A fully charged 12 volt battery is 12.8 volts and the tripping would encour around the 11.9 volt range.

 By having the dc lighting circuits QO controlled meant that even if the inverter went offline from low 11.9 voltage that the lights would remain operating even below the 10.0 volt range with no visible dimming of the dc light bulbs.

David Blume, owner
D B Electric

Thursday, February 4, 2016

High End DC to AC Inverters

Wiki describes high end inverters as a device that produce waveforms which are closer to the sine wave produced by a utility!

Basic Electrical Generation and Distribution

Inverters and Battery Based AC[edit]

An inverter is a circuit for converting direct current to alternating current. An inverter can have one or two switched-mode power supplies (SMPS).
Early inverters consisted of an oscillator driving a transistor as an on/off switch, that is used to interrupt the incoming direct current to create a square wave. This is then fed through a transformer to smooth the square wave into a sine wave and to produce the required output voltage.
More efficient inverters use various methods to produce an approximate sine wave at the transformer input rather than relying on the transformer to smooth it. Capacitors can be used to smooth the flow of current into and out of the transformer. It is also possible to produce a more sinusoidal wave by having split-rail direct current inputs at two voltages, (positive and negative inputs with a central ground). By connecting the transformer input terminals in a timed sequence between the positive rail and ground, the positive rail and the negative rail, the ground rail and the negative rail, then both to the ground rail, a 'stepped sinusoid' is generated at the transformer input and the current drain on the direct current supply is less variable.
Modified Sine Wave inverters convert the (usually 12 V DC) battery voltage to high frequency (20 kHz) AC, so that a smaller transformer can be used for stepping up to a higher voltage (say 160 V) AC. This output is converted to DC at the same voltage, and then inverted again to a quasi sine wave output (about 120 V RMS). A disadvantage of the modified sine wave inverters is that the output voltage depends on the battery voltage.
It is quite difficult to obtain a good sine wave from an inverter. The quoted accuracy (harmonic distortion) for most is less than 60%, and will have an effect on the appliances connected to the output of the inverter. This might mean noisy operation in some appliances and/or damaged electric motors, because they will run less efficiently and could overheat. High end inverters (> $2,000) produce waveforms which are closer to the sine wave produced by a utility.

Ok got it now let's put it to work to produce waveforms which are closer to the sine wave produced by a utility aka your own mini microgrid that has options. To accomplish this task there are 2 usual options (1) high end micro inverters that produce dc to ac  voltage with no battery banking (2) high end inverters that require dc battery banking options. Each has it's own pros and dislikes but the better option is usually (2) as the storage capabilities give more options. Inverter dc to ac electrical power that can match utility power with battery banking gives endless options as system design for power need can be easily matched to load. 
High end inverters are usually microprocessor controlled for 2 ac inputs, 1 for grid 1 for auto start generator or 1 for grid 1 for ATS automatic transfer switch, once again it is the way the setup configuration is installed for each individual system. Either way the power transfer is so fast that computer or clock resets are not needed. 
Any Basic Electrical Generation and Distribution needs control and protection to provide the safety required for efficient operation and this is achieved by being able to turn the power off by either automatically by fault or manually for service. 

By having total electrical power control gives even more choices to switching and automation arrangements in voltage and wattage inputs and outputs. Matching clients utility wattage loads can be easily matched and sized to their battery banking requirements to stop the utility meter from spinning for days or weeks at a time. Building the battery bank above the required load needed makes like a very large capacitor that is a source of free electrical power when solar-wind-hybrid is added into the mix.

A simple way to look at trying to match the utility power is it is just another switching point  that can be ATS controlled in normally open or normally closed system design. With high end inverters it is very easy to use and switch the utility grid power as a battery charger. 

In short high end inverters are well worth the investment for free electrical power when solar-wind-hybrid charging is added into the mix. 

Consulting options available for online/onsite for homes, cabins, ranches, farms, telecom, remote off grid, grid tied inverter power, auto start generator. By retired master electrician that offers quality craftsmanship into high end inverter pre built systems matched to clients wattage requirements.

Book a date and time on Face Book 

D B Electric

Wednesday, February 3, 2016

Switching 7.2 KV Off Grid Island Style Connection & Options

Off Grid Island Style Connection 

Step Up Line Side

The higher the voltage the less the amp draw for the same wattage being operated!

amperage X voltage=wattage

120 240 volt ac single phase 200 amp = 48000 watts
48000/240=200 amp load

7200 volt ac primary to lower amp draw 
48000/7200=6.67 rounded off to 7 amp draw

Stepping up the ac input on line side of the off grid dc to ac inverter systems
(battery bank to dc to ac pure sinewave inverter single or 3 phase KW to KV)

Stepping down the load side of the offgrid onsite for secondary load outputs KV to KW
Step Down Load Side

(battery charging, single or 3 phase options, multipli property locations taps)

Just add solar-wind-battery banking storage options for charging and massive amounts of free electrical power is possible totally off grid out in wilderness. aka mini microgrid your own power plant.

 PLC programmable logic controller makes even more switching options available. And PLC SCADA along with ATS automatic transfer switch to National grid possible in either KW or KV options for Net Metering.

Complete system control, monitoring, text/email alerts, security options, over the web with computer, cell options.

With the advancement in quality off the shelf stackable microprocessor controlled dc to ac inverters that are so fast that voltage transfers from one power source to another power source do not require computer/clock resets.

Cargo container setup makes fast ready to operate electrical power possible anywhere.

There is no reason to never have electrical power 7/24/365 that is free, safe, reliable. Retired master electrician can consult you on do it yourself kits. Or online/onsite options anywhere.

D B Electric