What are the safeties in elevators?what is the use of governor in elevator?

3 Answers   JLL,

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why do we use 3 single phase instead of one 3 phase?? though vee connection is its advantage but what is the hidden reason behind it??

2 Answers  

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back emf of motor at the time of starting ?

2 Answers  

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IN CONTROL SYSTEMS Y WE NEED TO KNOW THE STABILITY OF THE SYSTEM?WHAT IS ITS PRACTICAL USE?

2 Answers  

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What should be the earth pit resistance value?

7 Answers   BARC,

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im electrical engineer, could any one help me for FEWA exam questions please ?

0 Answers  

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why do we provide metallic enclosure to bus duct and then ground it?

1 Answers  

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1)How much current can a 3-1/2 core 100 mm wire carry? 2)What are the special cables required for explosion proof wiring? 3)In case you do not have coal and salt for earthing, how can you achieve good temporary earthing? 4)One horse power single phase motor is more likely to get hot than a one horse power 3 phase motor. Is it true or false, if true why? 5)What are the different types of soft starters for large motors?please explain?

0 Answers   TATA,

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what are carbondioxide and dcp used in fire extinguishers

0 Answers  

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i am gng to visa interview this july i have 4 backlogs gre 1010,toefl 75,pls give me the tips pls pls

0 Answers  

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what is the voltage rating of chiller unit sensors

0 Answers   Voltas,

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1.After synchronising the alternator to the grid,how we r delivering power to the grid?if the i/p increases does the speed hence frequency increases? 2.y the power factor is changing when exitation changes?what is the relation with p.f and flux?

4 Answers   BSNL,

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