News

Agha waqar Ahmed invent water fuel kit or cars motor Bike (hydrogen+oxigen H2O electrolysis)

Wednesday, April 11, 2012

500 Watt 12 VDC to 220 VAC Power Inverter


500 Watt 12 VDC to 220 VAC Power Inverter (UPS) uninterruptible power supply

Build you own 500 watt power inverter UPS 

Introduction:

Power inverter is a device which converts 12 volts to 150 volts of D.C into 220 volt to 110 volt. Power inverter is commonly known as UPS. UPS stands for uninterruptible power supply which is the modified form of inverter. Due to the lack of electricity the importance of inverter increases day by day. The substitute of load shedding is generator or UPS.
Few advantages and disadvantages of generator are as follows.
Its first advantage is, it can run many electronic devices and it can supply electricity for the long duration of load shedding. The disadvantages are noise pollution, usage of fossil fuel cost it too high. The alternate of generator is UPS, it has also some advantages and disadvantages.
The supply of electricity goes uninterrupted, it do not require much effort. Its backup depends on battery, as many amperes of the battery it has, that much it backup it would provide.
Its disadvantages are, recharging takes a lot of time and in the long duration of load shedding battery cannot b recharged so that it stops working. By putting excessive load the duration of backup reduces. Its performance is about 60% to 90%. Read Full article 500 Watt 12 VDC to 220 VAC Power Inverter (UPS) uninterruptible power supply

Friday, March 30, 2012

DIY power Inverter UPS in Urdu

DIY power Inverter UPS in Urdu
Read More 500 Watt 12DC to 220 VAC Power Inverter (UPS)Construction in Urdu  
500 Watt 12DC to 220 VAC Power Inverter
500 Watt 12DC to 220 VAC Power Inverter (UPS)Construction in Urdu
500 Watt 12DC to 220 VAC Power Inverter (UPS)Construction in Urdu Power Inverter (UPS)Construction in Urdu this is a simple inverter you can make your own if you have Little Bit of Knowledge about electronics this inverter can run 1 watt to 500 watt appliances
Discussions about Pakistan Science Club's Power Inverters 12 VDC to 220 VAC UPS, you can find problems, troubleshooting and construction help Please visit Power Inverters (UPS)12 VDC to 220" http://paksc.org/pk/forum.html See also Easy Homemade 50 watt Power Inverters (12 VDC to 220 VAC) UPS Power Inverter (UPS) Circuit inverter diagram Schematic of an Inverter Read More

See also

Easy Homemade 50 watt Power Inverters (12 VDC to 220 VAC) UPS Power Inverter (UPS) Circuit inverter diagram Schematic of an Inverter Circuit WHAT IS THE Difference between an inverter and UPS? (Forum) How to find emitter base and collector of D1047 Transistor 12 VDC Inverter System Troubleshooting & Maintenance Difference between Voltage-Amps (VA) and watts and how do I properly size my UPS!

Thursday, March 29, 2012

Solar Distiller Science Fair Project

Science Experiment

Solar Distiller Science Fair Project
Solar Distiller  Science Fair Project Solar Distiller Grade Levels: 7-9 Questions: Can you distill clean water from muddy water? Can you distill clean water from salty water? Possible Hypotheses: You can/cannot make clean water from muddy water. You can/cannot make clean water from salty water. Materials: Two large plastic containers Clear plastic wrap Masking tap, Reade More

Tuesday, March 27, 2012

Farming blog in Urdu Farming-urdu.blogspot.com


About Farming Urdu

Farming-urdu.blogspot.com provide information in Urdu about fish farming, dairy farming, poultry farming, chicken farming, aquaculture fish farming, cattle farming, mushroom farming, sustainable farming information about farming will provide by different resources like

visit Farming-urdu.blogspot.com

Sunday, March 25, 2012

Science must guide us towards a more sustainable future

Science must guide us towards a more sustainable future

Sunday, March 25, 2012 4:54 AMScience must guide us towards a more sustainable future by   David Dickson LONDON: One of the most significant achievements of science over the past few decades has been to provide convincing evidence that human activity has had a growing and potentially unsustainable impact on virtually every aspect of our planet. The scientific community now needs [...]

Renewable energy resourcesSunday, 
March 25, 2012 1:56 AMRenewable energy resources by ERUM ZEHRA Summer is on its way and we’ve been already warned about the electricity load shedding this year and the increase in price per unit because the snow hasn’t melted yet and the water is at dead level in our dams. If timely planning is not done, one can imagine [...]

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