What is the diffrence between ofline ups and online ups?

3 Answers   Intel,

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explain the what is a drive ? 0 4 which type motor r use in the celling fan..... PCB plannet 2 13 If stator & rotor of a 3-phase induction motor have different no. of poles, will the motor run or not?? types of drives Why dc supply is used for closing and tripping coil of ht breakers. What happen if we use only ups ac supply only. ACC 1 41 how the 3phase induction motor is running in 2phase supply with help of capacitor? 1 33 what is the actual difference betwen constructional details and constructional features? 1 20 how does commutator convert a.c to d.c?

0 Answers  

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what will happen if i connect or change line with phase terminal

1 Answers  

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what is ups Paralleling? how is load sharing at that time ? what are the things we have to note that time?

1 Answers  

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Why machines are avoided to work is saturation region of B- H curve?

3 Answers  

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Describe the control mechanism of missile launcher???

0 Answers   DRDO, ONGC,

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why they were using TRIAC instead relay in some controllers and what is the advantages.

0 Answers  

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what is the effect of power factor on DG supply,i mean to say what will the effect if we add capactors on dg supply.

4 Answers   HCL,

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1 Answers   Exide,

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Generally we denote power in 'p',voltage in 'v'but why can't we denote current in 'c' instead of I.

4 Answers   Bhel,

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Why is better to have a minimum ceiling voltage of 250% than 160%?

0 Answers  

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dear all i am kumara now current working in electrical designing of control and relay panel i want learn some substaion design then any book are available. pls mention name and authour

0 Answers  

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