Which UPS (inverter) is better and why ? 12 V inverter and 24 V (two 12 V batteries in series) inverter which is better ......... which has the longer backup which has the greater charging time which has the greater discharging time thank you

2 Answers  

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What is the diffrence between PS & metering CT (5p20,0.5 etc.)? Why in PS class CT only Vk is given ? Is PS class CT is more accurate than metering CT?

1 Answers  

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IT IS DESIRABLE THAT THE INCOMING MACHINE SHOULD BE A LITTLE FAST AT THE TIME OF SYNCHRONIZING.EXPLAIN?

1 Answers  

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Why electrical power generation and transmission done in 3 phase system not more than 3 phase ?

0 Answers  

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Sparking occur when a load is switched off because the circuit has high – a.) Inductance b.) Capacitance c.) Resistance d.) None

3 Answers   Ecil,

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What is Mvar?how significant is in electrical energy transmission?

2 Answers   Areva,

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Why we Specify Transformer rating 433 V Instead of 415V ?

8 Answers   ABB, ERA, Uddans,

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If ct ratio is 250/1 and mtr is of 5 amp, what will be mf?

1 Answers  

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I NEED RRB SYLABUS FOR JE ELECTRICAL ,PLEASE SEND TO MY E- MAIL ID joo28_eee@yahoo.co.in

0 Answers  

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how to convert lv line to hv line and viseversa, any losses will occur during this process

0 Answers   Jindal,

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What difference between MCB,MCCB,RCCB,ELCB please explain briefly with its rating.

3 Answers  

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CAn any one can tell me what is the operation of ceiling fan and how it will start

2 Answers  

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