What else can you buy that will keep on giving you a return for 25 to 35 years+ after you recoup your initial investment? Any power reducing modification on a piece of real estate will increase the property value. Think of it as two different systems, one is a basic solar panel to charge controller system, then the other is the GTI Controller system connected to the same batteries. Connect as directly to the batteries as possible so the GTI Controller can sense their voltage directly and GTIs have direct power from them. Q: Why can't I hook up my solar panels directly to the solar controller input and the GTI input at the same time without your device? A: They fight each other, the battery does NOT get priority first thing in the morning, and on cloudy days the GTI takes everything. Click HERE for a link to the Eaton Electrical Box at Home Depot ] We can't sell and ship you a box for $7 and you will probably take a trip there to buy a nice piece of plywood for backing and some wire anyway.
For $7 you get a disconnect switch, wire connection terminals and a nice enclosure with no extra shipping charges! The Eaton disconnect box is UL Listed #E132354, ANSI certified, CSA Listed, and meets 2008 NEC Article 422.31 (B) requirements. Do not buy the GE box that looks the same, it's too small inside and the controller won't fit. We recommend that you start small, monitor things, then see how it goes before adding more panels. A: With two 24V solar panels generally they are in PARALLEL, but with some newer MPPT charge controllers you can go to a higher voltage but still use 24V batteries. And now you are wondering what happens if the GTI Controller mosfet fails shorted - your batteries would probably discharge to the lowest voltage of the GTI, sorry but at least acid doesn't fly in your face like a shorted MOSFET on a charge controller at high voltages could do.
At night your batteries may run down and your inverter shuts off, so you need to somehow automatically switch back to the grid, that's another expensive piece of equipment you need, a transfer relay. The GTI Controller pulls a little power from the batteries but it doesn't deep cycle them so battery lifetime should be better than a off grid system that deep discharges the batteries daily.
Click HERE for a link to the Eaton Electrical Box at Home Depot ] We can't sell and ship you a box for $7 and you probably want to buy a nice piece of plywood for backing and some wire from Home Depot anyway. A: We recommend using metal conduit for several reasons, first is to protect your expensive wire from the sun, next would be to keep the little critters from eating through the insulation since they do climb on roofs, third would be for fire protection in case of a high ohm contact which would heat up, fourth would be possible lightning protection because typical wire insulation is 500V to 1000V and lightning (100 million volts plus) will seek the ground potential of the metal conduit and POSSIBLY save your equipment, lightning is wild so you really can't protect 100% for a direct strike.
A: We recommend putting a disconnect outside for your own convenience when working on your system and some fire departments suggest them because they don't know the voltage of your system. There are other requirements when using systems over 150V and some at over 50V stated in Article 690 such as a need for a outside disconnect, DC-GFP (GFI like device) and Series Arc Fault Detectors. When enclosed in a metal UL approved box such as the Eaton box, NEC 409 applies as this is electronic control equipment or a "Industrial Control Panel". When all wires are inside metal conduit and the metal box cover is closed this system is as safe as is humanly possible for electrical equipment of this voltage and amperage. We always recommend to have a qualified electrician do any installation, especially with voltages over 90V. A: Most charge controllers that have a equalize mode are intelligent enough to detect a load on the batteries (the GTI) and not try to do a equalize charge.
Q: What do I do about a fancy charge controller that "absorbs" or "tops off" at a higher voltage? A: When your battery reaches it's highest charge voltage it is generally charged and not taking in much more energy. So generally you want to look up your battery's particular charge voltage and turn on the GTI at that point or a little above it so you know it's pretty much fully charged.
A: Slow blinking shows it's working, powered up and CPU is running OK, this happens when voltage is applied.


It is actually better to use a simple charge controller that allows you to adjust the voltage so you can get your system just right. A: The fans shown in the video were actually old PC power supplies cut up so you can use just the fans, see the Youtube video about how they were made. ELECTRONICS FOR YOU MINI PROJECTS FOR EEEUploaded by maastech ashokkumarapr , ece,eee,and switch laser basedgiven that .
How Do You Know If a Career Change Is a Good Idea?Views: 2654 Is your career at a standstill?
So it depends on the wattage of your panels, GTI's, batteries and solar conditions in your area.
The hardware store metal electrical disconnect box we recommend for this system is the Home Depot or Lowes Model Eaton #DPU222RP $7 and used to mount the device and provide covered protection. A second or third GTI Controller will also work in parallel with another GTI Controller, you can "stack" as many as you want.
Beware that the switching mosfets in charge controllers can fail SHORTED and overcharge your batteries and there is no way to protect from that, ask your charge controller manufacturer about that! One save for that is the fact that solar panels will pull down in voltage if overloaded, but this "save" depends on each system's panel wattage, battery size and load. They have about a 5 year lifespan or less depending on usage, and a limited number of deep cycles, some are better, some are worse, then you have to replace them.
You basically use the grid as a BIG battery and then use the energy back later when you need it. The fuse should be sized to protect your wires and as close to the battery as possible, also big enough for the GTIs you are running.
For homeowner DIY installed equipment in single-family dwellings it may be exempt in your area, check your local government codes.
Article 409 covers "Industrial Control Panels", which are enclosures for general use and operating at 600 volts or less containing circuit protection devices, relays, electrical circuits and connections. It's a good idea to do a equalize charge every few months, so you would have to do them manually and disconnect the GTI Controller during the short equalize period. Nothing is perfect and there are tradeoffs here because you also want to start using the solar panel's TOTAL energy for something else and not topping off the battery.
Later in the afternoon (on a good day) the batteries get a limited topping charge when the solar panels can't push enough power to bring the batteries up to the point of triggering the GTI, which means the batteries sit nicely at about their charge voltage for a while, basically "topping off" for the day. Fast blinking happens when the GTI is energized, meaning you reached the trip voltage point you set with the adjustable pot. The idea here is to keep the batteries topped up and not spend a lot of money on fancy chargers when it's not needed. Minimum panel wattage should be at least 250W or above for a smaller system, and one 300W GTI. You should size the GTIs to the extra energy you expect to have or it will probably go into float mode more and you will throw energy away. This is why it's better to have batteries ready for power outages and use the grid otherwise if you have it. You have to size your batteries and panels with your daily AC loads which is hard to do since no one uses AC appliances exactly the same way every day. Article 312.5 requires the use of proper fittings at enclosure openings, to protect and secure the cables and wiring for example, which just makes sense. Some controllers call it "absorb" but it is really a topping off of the charge and you are not using much of the solar panel's energy at that point. You own the solar panels, they are worth something, you don't get that when you throw money at the power company. The GTI Controller will adjust down to that and it's a good starter system as you move up to 24V which is better in a lot of ways.


Typically a hardware store metal electrical disconnect box (Home Depot or Lowes Model #DPU222RP $7) is used to mount the device and provide covered protection.
Article 314.4 requires all metal boxes to be grounded (bonded), which is always a good idea.
Whatever the reason, most people consider a career change at least once during their lifetime.
Always work with the batteries disconnected until you have double and triple checked all your connections, and with a meter.
If you have some other load on the batteries, then any extra energy will go to the grid when the batteries are at a high enough voltage to trigger the GTI. Most people should run a 24V system, it's more cost effective with less wire loss plus less amps that make it easier to work with and the GTIs respond with better output. For all the reasons why you want to change careers, you probably have a list of reasons that are holding you back, too.
Find out if the grass really is greener on the other side by exploring these topics.Justifiable Reasons for Making the ChangeLife ChangesIf you started your current career when you were a fresh faced college graduate, chances are that your life has changed drastically since then. Whether you’re now married with two kids or you’ve moved to another part of the country, your career may not be fulfilling you the way it used to.
Even changes in personal interests or cultural trends can have a big impact on your career.Job OutlookWhat once was a promising field now has a pretty glum outlook for the future. Not only is it discouraging to stay in a job market that’s not going anywhere, but it’s not very smart, either. Unless you’re close to retirement, you may want to get off the ride before it’s too late.BurnoutYou used to look forward to Monday mornings at the office, but now you dread every second of work even if the weekend is getting closer. If you’ve tried changing employers, but you’re still miserable, you may need a career that inspires you.Questions to Ask Yourself Before Switching Careers“Why exactly do I want to change jobs?”Being able to honestly answer this question will prevent you from jumping out of the frying pan and right into the fire. If you have unbearable boredom with or disinterest in your job, you’ll likely benefit from a position that challenges you. If you know you won’t make any progress in your current field or if you’re young enough to seamlessly make a transition, it’s probably a good idea to start the process of changing careers soon.
However, if you feel that you’re undervalued or you just don’t get along with your co-workers, starting from scratch in a new career may not be the fix you need. Many people who change careers start from the bottom, which means it could be awhile before you’re valued by your co-workers and peers.
If you don’t get along with the people you work with, changing departments or looking at your own communication skills may be a better option than making a huge career overhaul.“Do I want a career change? Or do I just want a different work setting, boss or title?”What may feel like the thirst for a new career may actually just be an itch to switch things up a bit. If you actually feel challenged by your career and you don’t have disdain for the field you’re working in, other changes may be exactly what you need.
Working for a new company or applying for a different type of job in the same field could do the trick.“Will my skills transfer?”It’s important to take a good look at your own skills. While you may want a brand new job, you won’t be able to automatically have the skills to succeed in an unfamiliar industry. Make sure you have the business savvy, people skills, marketing know-how or whatever it is you’ll absolutely need in your new field.Michael Nain is a professional blogger that provides news and information on trucking companies, local truck driver jobs trucking jobs and owner operator trucking jobs. If you look around and realize nothing out there can compare to what you have now, you come to appreciate what you have. But then the market changes and you change, and now you see properties that are appealing and available.



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Rubric: How To Survive Emp



Comments

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