Answer / vinoth

A three phase or single phase power supply come into
rectifier,now three phase or single phase supply is
converted into dc supply goes to battery charger and
simultaneously goes to inverter now the dc supply inverted
into ac supply. This method is used in online ups.
Off line ups a three or single phase power supply come into
rectifier the rectified dc supply goes to inverter...Un
fortunately main incoming supply break down time the battery
supply goes to inverter.....

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hi friends, i have applied for oces 2010. can u give me a brief idea about the entrance exam which is gng to be held on may30th.Is the exam of technical or it includes aptitude? i am from ece stream.pls mail me at navinmsl@gmail.com

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