Homemade Electricity

February 9th, 2012 by admin

Is it achievable? Can I really make my homemade electricity at home to reduce the power bill? Yes you can, you can do it by building renewable energy power systems. I mean solar and wind power systems that can be built at home and can easily power all your electrical devices.

Wind and solar energy resources are the best energy alternative resources for our planet. They are clean, cheap and renewable energy resources. Actually, they are free, you just need a simple generators to convert wind and solar to renewable electricity. So, when you build such systems, the electricity will come to you for free.

With such systems, you can easily decrease the power bill by 75% or more, you can totally eliminate it if you build more units. The best thing with building those power systems is you don’t have to be an expert to build them, with a simple instruction guide you can build them in very few hours.

Did you think about this thing before? Do you know how much money you’ll save when you use only one unit? You can easily save $100 every single month; you can save more when you build more units. Building a simple windmill will cost you less than $100, building a solar panel will cost you more “about $200″. Anyway, that amount of money is nothing compared with the amount of money you’ll save.

Making electricity is very achievable, stop losing you money and convert you home to solar and wind power today. Discover the green living, save your money and your environment. Build unite or tow show your friends your unique work, they will love it.

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How to admeasurement accepted and voltage with a agenda multimeter

February 7th, 2012 by admin

This clip shows how to use a digital multimeter to measure the current in a simple circuit, and measure the the voltage across a resistor.

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Testing Capacitor – How To Test A Capacitor When Breakdown Under Load

February 3rd, 2012 by admin

Have you ever come across power problem where once you switch on the power supply and the fuse blow? You have checked all the components in the power (primary) and secondary section and all the components seems to be ok! Where is the fault? A fuse blown are usually caused by a shorted bridge rectifier, defective posistor, power transistor or FET, shorted primary winding of switch mode power transformer, shorted secondary diode and etc. But in this article I’m gone to show you another secret of electronic troubleshooting tips.

I got frustrated as to where is the cause of power problem. Every time when i switch on the power supply the fuse blow immediately (the fuse became dark color and this indicate that there is a major short circuit in the power supply). I have checked all the components in the power supply and can’t find the culprit! What i do is i desoldered all the suspected parts one by one and replaced with a known good component. I eventually found the caused of the power supply problem. Guess what? It was the main filter capacitor (220 microfarad 400 volt). After replacing the filter cap the power supply worked perfectly fine. I begin my detective work to find out why this capacitor can caused the fuse to blow even though i already confirmed it ok with my meters.

The meters that i used to check the filter cap were analog meter, digital capacitance meter and esr meter. In this article i will not explain about how to check capacitor or testing capacitor and how capacitor work. I believed most of you know how to check capacitors and also generally using this type of meters. Measured with analog it showed capacitor charging and discharge, with digital capacitor tester it showed around 220 microfarad and with esr meter it showed low esr reading!

This proved that the bad capacitor breakdown when under full operating voltage. Then, how do i confirm that this filter capacitor is faulty? By using an analog insulation tester. When i connect the faulty cap to the meter and press the go button-it showed a very low resistance and this is the proved of short circuit between the plate when voltage applied! There is nothing to do with bad electrolyte. A good capacitor will just showed a charge and discharge in the insulation meter just like you are checking a capacitor using analog multimeter. In the market there is quite a number of ranges that you can buy. It has the range of 50v, 100v, 250v, 500v, 1000v and even 5000v! If you want to test a capacitor of 100 microfarad 160v then you have to select 100v. If you select 250v, it will blow your capacitor that is under test.

If you have the SENCORE TEST EQUIPMENT such as the sencore lc meter LC102 OR LC103, these meters have the capabilities of checking any type of capacitors with four tests:

-testing for capacitor values

-checking for leakage

-equivalent series resistance (ESR) and

-Dielectric absorption

It can check aluminum electrolytic capacitor, film capacitor, ceramic, high voltage capacitor and etc.

Conclusion-Different capacitor manufacturer produced different type of quality of a capacitor. Perhaps the bad capacitor that I encountered are from the lowest grade one. A capacitor failure when under load is very rare. Using ESR capacitor meter alone can solve most of the electrolytic capacitor problem.

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Test Electronic Components

January 29th, 2012 by admin

To be able to test electronic components accurately is essential to identifying faults for any electronic repairer. Top quality electronic testing equipment is therefore much sought after.

If you are involved in electronic repairs, professionally or just as a hobby, you will know just how much time good equipment saves you. Normally, however, this type of equipment to test electronic components can be relatively expensive, especially for do it yourself enthusiasts and people thinking about starting a small or part-time business.

What many people are unaware of is just how easy it is to make your own gear and multimeter to test electronic components to the standards of top of the range brands, but at a fraction of the cost. All you need is the necessary know-how.

There are some guides available to show beginners how to test electronic components and how to repair electronic devices and appliances. You should be looking for the following things when evaluating such a guide.

Good electronic test guides should include the following:

First, check the author’s credentials. Does he perform professional electronic repairs? Is he an electronics testing instructor? Do his instructions appear to be easy to follow and well laid out? Does he offer a guarantee if you are not fully satisfied with his manual? Does he identify being able to test electronic components with electronic repair? He should be aware that repairs are straightforward if you have the correct equipment to identify problems. And is his manual reasonably priced?

Secondly, make sure any guide not only explains how to make your own testing equipment but also explains which equipment to use for particular jobs, how you actually employ that equipment, what to test for and in what sequence. It’s all very well to have superior testing equipment to hand but if there is no methodology to follow in testing, you will just be wasting your time.

Without doubt, working out how to test electronic components can become quite complex. Much like wiring a house or office, without proper plans to work from, even the experts can become confused. If your systems of fault identification aren’t clear and easy to follow, frustration and disaster lie ahead. So, make sure any guide includes easily comprehensible diagrams and descriptions.

Ensure your guide does not just cover the basics. Part of the reason for making your own kit to test electronic components is to give yourself an advantage over other electronics testers. Most equipment that is declared unrepairable is, in fact, eminently repairable. Normally the tester simply has not been able to identify the problem; if he could identify the fault, it is not usually beyond repair.

Ensure any manual also covers testing for faults and shorts using an analogue meter and how to make such a meter. It will prove to be invaluable in cases where a digital meter has its inherent shortcomings.

So, to reiterate, superior testing equipment is essential, but no less important is having foolproof plans of testing to work through so the fault is not missed. The order of testing is important in the sense of saving time by testing for the most common faults first and so on. A good guide should also include a comprehensive troubleshooting section.

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Unboxing & basal analysis Vichy VC99 Analog bar

January 21st, 2012 by admin

Unboxing & basic review Vichy VC99 3 6/7 Multimeter analog bar CF said to be better FLUKE 17B, (I doubt this) IMPORANT!!!! See what EEVBlogs says first:- Digital Multimeter Buying Guide for Beginners www.youtube.com and EEVblog #6 – Part 2 of 2 – Why cheap multimeters suck www.youtube.com EEVBlogs YouTube Channel www.youtube.com Also see Multimeter Review / buyers guide / tutorial www.youtube.com MjlortonYouTube Channel www.youtube.com More Electronics www.acomputerportal.com Vichy VC99 Budget Multimeter Basic Specs Item specifics Place of Origin Guangdong China (Mainland) Model Number:VC99 Measuring Capacitance Range:40nF/ 400nF/4uF/40uF/400uF/2000uF Measuring Resistance Range:600O/6kO/60kO/600kO/6MO/60MO Brand Name:Vichy Operating Temperature:-40C~1000C Measuring Current Range:600uA/6000uA/60mA/600mA/6A/20A Dimensions:185×93x35mm Measuring Inductance Range:100Hz/1kHz/10kHz/100kHz/1MHz/60MHz Measuring Voltage Range:600mV/6V/60V/600V/1000V color:yellow Product Description Package : •1 x User Manual •1X VC99 •1X Red Probe •1X Black Probe •1X Thermal Couple TK cable ~~~~~~~~~~~~~~~~~~~~~ Look inside teardown VC99 spn-dev.net Hacking for RS232 DIY: hacking multimeters for RS232 data logging output www.amb.org Cheap’ DMM (Digital Multi Meter) Hack (RS232) blog.felipebarriga.cl Unlocking RS232 serial comm on a multimeterv hackaday.com Hack de multímetro para obtener salida RS232 syvic.synusia.es More Electronics www.acomputerportal.com

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