الموضوع: حل مشكله انقطاع الكهرباء وتجربتى مع الانفيرتر

Cheap inverters are square wave / quasi-square wave. Avoid them at all costs for PC/sensitive equipment unless u have a PC power supply that is able to cope with higher input harmonic content. i.e. HUGE capacitors on the input filter. These inverters produce a square wave output where the RMS is about the same as the wall socket voltage, but it is VERY noisy. OK for apps like lighting, heating, running motors etc.

Sine wave inverters are the best. They utilize sinusoidal PWM to produce a CLEAN sinewave which is representative of that found in the mains wall socket. The circuitry is a lot more complex than the square wave, but they don't produce any "hum" or "noise" when connected to sensitive equipment like hifi's, PC's, medical equipment etc.

Bottom line ... get the sine wave .... its less likely to mess up your equipment.

One more thing ... be wary of the various power ratings for inverters. The one to trust when sizing an inverter is the RMS/Continuous rating.


One more thing ... Modified SineWave inverter = Square/Quasi-Square Inverter... avoid them ... just a marketing terminology to sell you crap.

Shiny Sine Wave HUPS

Jiyo life non-stop Shiny Sine-Wave UPS is a revolutionary new technology that will make you expect more from your power back up. It not only offers non-stop protection for all your valuable appliances, it does it so silently, that you’ll forget you have a UPS.

Being a Sine Wave UPS, it offers non-stop protection for your appliances and more efficiency for reduced power consumption. And there's more. It is a super silent UPS with an automatic overload sensor and fuzzy logic that is designed to put your comfort first.

The cool looks, of course, is a bonus. All this and more. Just to ensure that you live life without a pause.
Features:

• Handle High Current: Shiny Sine Wave Home UPS is capable of handling a current of up to 300% of its actual capacity. Therefore, it can easily take on the load of washing machines and water pumps.
• Superior Technology: Its superior HCLC (High cut/Low cut) Technology provides complete and constant protection to appliances in case of any irregularities and disturbances in the grid supply. Expensive and sensitive equipment are spared from damage.
• Choose between UPS & Non UPS Mode: Shiny Sine-Wave Home UPS slider selection switch lets the user choose between UPS mode (input voltage window 185 to 260, ideal for computers and sensitive appliances) and Wide UPS mode (input voltage window 105 to 275 V, suitable for running normal loads and non-sensitive appliances).
• Extra Energy Efficient: Shiny Sine-Wave Home UPS is equipped with the SMPS based charger with high power factor which minimizes the amount of AC power required to charge the batteries, thereby reducing power consumption.
  
  In case of overload, Su-Kam's System Overload Alarm resets the Home UPS automatically.

• Easy Switch-over: Shiny Sine-Wave UPS automatically senses power failure and switches to battery mode silently, without letting the user even notice that the power supply has failed.
• Advanced Fuzzy Logic Control Technology: Su-Kam’s patented advanced Fuzzy logic control charging technology senses the requirement of the battery and controls the charging process accordingly. This results in Huge Savings on Electricity, Longer Battery Life and Reduced Water Topping.
• The Two-way slider Selection Switch: This switch gives you the option to select any battery type and charging. This improves the back-up quality and enhances battery life.
• Highest Cold Start Capability: Su-Kam's Shiny Sine-Wave UPS has the highest cold start capability which means if 8va tube lights are connected and it is switched on, all the tube lights will be on at the same time.
• Shiny Sine-Wave UPS comes

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المشاركة الأصلية كتبت بواسطة طارق _عبد السلام

بجد انا مش خبير فى موضوع البيور والموديفيد وتقريبا اغلب معلوماتى عن الانفيرتر من كلام الاخوه فى المواضيع المتعلقه بالجهاز وفيه رد فوق بيتكلم عن الوديفيد
لكن الكل اجمع على ان الموديفيد بيؤثر على المراوح وبتسمع صوت زنه وده مش موجود ولا حتى شوشره اثناء تشغيل الشاشات للتلفزيون... (هتقلقنى ليه) ..:)عندى الى اى دى وعندى ال سى دى ومفيش اى مشكله معاهم -- ومركز معاهم جدا ... دنا جايبهم بمبلغ محترم

الفرق الوحيد المحسوس هو فقط عند رجوع التيار الجهاز بيفصل ويجمل فى لحظه بحس ان سرعه المروحه ارتفعت وخد سرعتها الطبيعيه اظن ده لان البطاريه كانت شغاله اكتر من ساعه فالكهرباء قلت
ولا ايه .... حد فاهم الموضوع يفهمنى

لا ياستاذ طارق توقع حضرتك فى غير محله بطئ المروحه بسبب انه موديفيد وفعلا ده اقل تأثير على المراوح.. احيانا الموديفيد بيعمل زنه واحيانا دخنه. اما بالنسبه لتأثيره على الاجهزه الالكترونيه فدائما يقولون لو الاجهزه حساسه فيفضل البيور ولا اعلم ما معنى الحساسه هل المعقده ام الغاليه ام المتقدمه ؟ حقا لا اعلم
للاسف يا استاذ طارق صاحب حضرتك كان ممكن يخدمك احسن من كده فى موضوع الانفرتر ..الا لو كان هديه بقى.