Answer / k.prakashchandra

The energy stored in each battery is = voltage of the
battery x AH of the battery in watt hour.If you multiply
this with the number of batteries ,you will arrive at total
energy stored in watt hour.This when divided by the load in
watts will give you back up time in hours.This method holds
good for both series and parallel connections of batteries .

Why do we generate 3 Phase AC Supply? It is possible to generate 4 Phase and 5 Phase explain it?

4 Answers  

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which is the slowest motor? and wt is speed ?

1 Answers  

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why the earth conductor in top of the tranmission line ?

2 Answers  

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what is PID control in VFD drives?

0 Answers   AES,

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On wat basis TSM & PSM are set? Example.TSM=30% n PSM=2.5A....Hw they are set and how we come to know that the particular relay should be set to this value only?

2 Answers  

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with out colour codeing on conductor how can be find what is r,what is b,what is y phases.....

0 Answers   Divis Laboratories,

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what is the practical definition for voltage

3 Answers  

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What will happen if the armature resistance is in minimum position and the field resistance is in maximum position while starting the motor

0 Answers   Viva,

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I have 30KW Motor Starter Panel, System voltage is 480V, So i have to convert voltage 480 to 220V to give the contactor coil. How i can select control transformer, Which rating transformer i can use this panel, what is the procedure, please tell me.

2 Answers  

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WHAT IS MEANT BY SLIP , WHERE IT OCCUR

3 Answers   Suzlon,

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I have one ct of ratio 3000-2000/1 Amp its knee point voltage mentioned on name plate is 500-333/30mA-50mA at Vk/2. in secondary box there is three terminal named 1S1, 1S2, 1S3 then on which terminal obtained the knee point voltage ie 1S1-1S2 OR 1S1-1S3 & also specify the knee point voltage for the ratio 3000 from name plate.

0 Answers  

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Welding machine

1 Answers   CEL,

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