Answer / varun

occ is graph between the Ef and If.The final value of the Ef is 125% of the rated voltage.The graph shows that for the low values of If the relaion is linear between If and Ef.an when the values of the IF is increased the Ef vs IF will not be a straigt line because of the saturation in iron part in magnetic circiut.and magnetic saturation sets in...for this reason occ is called magnetising characteristics...

How much earthing require for h.t.22 k.v. cable in coming side & out going & 22 lighting arrest or,22 k.v.D.o. & A.B. switch.

1 Answers  

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why do we need to use 3c+3e cable, normally i select only 3c+e cable and i think it is enough. pls explain the usefull of 3e cable ( in this project the earthing system is well done)

0 Answers  

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I have recently seen a transformer which had two primary terminals and was connected between two lines,i would like to know what kind of transformer is it?short discription about it,any advantages,purpose of usage of the same.............

8 Answers  

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why current is denoted by I

7 Answers   CTS, GCT, Samtel,

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if a motor has 1500rpm then what will its HP?

3 Answers   Willdale,

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what is meant by slip & where its occur ?

5 Answers   Lanco,

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how can we calculate ct ratings ?its any formula ?

3 Answers  

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1]how the voltages and frequency are achieved on ships. 2]how does the line and phase voltages are related on ships.

3 Answers  

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HOW TO CALCULATE THE LOSSES OF CURRENT FOR LT CABLE JOINTING TO MOTOR SUPPLY.

2 Answers  

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in three phase 11kv transformer (11kv/433v) input( R,Y,B) output (X,Y,Z,N) the connection as follows 1 phase R -open 2phase y connected to both R and y of input] 3phase B- B what is the output voltage X to N ,Y to N , Z to N

2 Answers   Bescom,

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what is the function of a Master trip relay? why is it used ?

5 Answers   ABB, Nissi Engineering Solution,

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Why is the air gap between the pole pieces and the armature kept very small?

0 Answers  

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