Answer / bhavana kumari

Causal system is the system whoes output depends on past input and present input and not depends on future input. For e.g output of causal system Y(to)=x(t) where t<=to

while buying 30 kva on line ups for 1 phase ouput, we ave to calculate the number of batteries for 2 hours back up? how to calculate the ah rating and number of batteries

1 Answers  

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what is the formula or method to calculate RESIDENTIAL,COMMERCIAL & INDUSTRIAL load power?????

3 Answers   RRB,

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WHAT HAPPENS IN DIFFERENTIAL PROTECTION IF CT REACHES ITS KNEE VOLTAGE POINT?

4 Answers   Jindal,

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Most electrical terms denoted by first letter of its name but Why current is denoted by "I".

4 Answers  

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why ferranti efect occurs on no load only?

3 Answers  

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directional over current relay when acted & how it works

3 Answers   NCC, ThyssenKrupp,

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Does the total power means fundamental plus Harmonics?

2 Answers  

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why DC source is used to idetify the polarity of CT/PT?

1 Answers  

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What is the difference between grounding & earthing?

9 Answers  

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how much mininmum length required to conduct a DC Hipot Test on 33kV AC Cable with 45kV DC? Is it 20meter or Less then 20?

0 Answers   ABB,

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What is difference between Over Current & Earth Fault protection?

0 Answers   ABC,

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dear all, How do i increase UPS (1000VA)backup time ? i have connected 2 12v wold you please 120 aH battery externally. ups charge the lead acid battery only 12.7 volt. backup time only 10.00 minuts and gose off. can any one of you help me?

1 Answers   Technomax, ups,

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