Answer / sk reddy

Contactor used in 3 phase.Relay used in single phase.Contactor will be drivern by relay

one 60KVA UPS how can full load current tell me us formulas

1 Answers   Wipro,

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what is the mechanical safety of DG ?

0 Answers  

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In a Synchronous generator, Can AC voltage be used instead of DC voltage in field winding of rotor to produce AC power?

10 Answers   NTPC, Windia,

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what is the role of frequency in electrical system

2 Answers   Hindalco,

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what are different types of alternator and discuss about the methods of cooling

16 Answers   Bhel, Jindal, L&T, Nalco, Vedanta,

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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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difference between power surge and switching transient

0 Answers  

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which relay is used for both detection & correction?(there is only one relay)

2 Answers  

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the process cynide is used for?

2 Answers   MAHINDRA,

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what is an impedance & inductance ?

4 Answers  

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WHY TERTIARY OF POWER TRANSFORMERS IS LOADED WITH EQUIPMENTS LIKE CT,PT,ISOLATOR AND CB

0 Answers  

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Given a collection of points P in the plane, a 1-set is a point in P that can be separated from the rest by a line; i.e. the point lies on one side of the line while the others lie on the other side. The number of 1-sets of P is denoted by n1(P). The maximum value of n1(P) over all configurations P of 19 points in the plane is 18

0 Answers   TCS,

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