If NO contact of relay gets supply from other sources or other part of circuit and at a time relay coil activates,then current will flow in which direction & will it cause to damage relay??

1 Answers  

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There is air in a room . the top and bottom of the room are at constant temp. T1 and T2. DRAW THE temp profiles if a. T1 greater than T2 b. T1 less than T2

0 Answers  

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Which colour of earthing wire

1 Answers   Aravali,

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can any one suggest paper presentation topies for electrical engg?

0 Answers  

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what happen when we add mentos in cold drink?& why?

0 Answers  

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Why is the generator rating always in kVA and motor rating in kW?

7 Answers  

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A 3 phase motor operating off 415V system is developing 20Kw at an efficiency of 0.77 and power factor of 0.73. determine:- a)the line current. b)the phase current if winding are delta connected. c)the phase voltage if winding are star connected.

1 Answers  

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What is the use of Gateway RTU like ABB RTU 560 in power plant, SAS system ?

1 Answers   ABB,

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What are the uses of lead compensator?

0 Answers  

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What is the difference between Isolator annd Circuit Breaker.

21 Answers   ABB, Lanco, NTPC, Power Grid, RInfra,

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What is the frequency of dc current????

4 Answers   SCS,

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How can we determine or find out the proper size of any cable if nothing is mentioned on it.Calculation of size in Sq.mm???

1 Answers  

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