Answer / k.prakashchandra

The star point of 3 phase supply is the neutral.The phase
wires are lines.The voltage between line and neutral is 230
V so also between line and earth if nrutral is earthed.The
voltage berween N and E is zero.

how can i use REF and diffrencial relay both in 1 CT core for transformer protection?

0 Answers  

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why generally transformer are in star to delta

3 Answers  

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What will happen if an AC induction motor is applied with DC voltage?????????Kindly give all the posssible answers...

2 Answers  

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following are the questions asked in interviews: 1) Considering the short circuit fault, which switchgear is preferable, SFU OR MCCB? Which operates faster? whicg one is popular in Indian Market and why? 2)Define SCPD. What is type2 coodination? 3)Why the contactor rating is higher for the fuseless selection than for fuse selection? whether the ratinf of SFU or MCCB remains the same in both the cases? 4)If the HP rating is known then can you calculate the ratings of L.V Switchgear(SFU/MCCB, contactor, OLR) without using the selection chart?

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what's the difference between abs/inc encoders. apart from the position remembrance what are all the other differences. and what's mean by grey code.

0 Answers  

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40 HP motor how many square mm size wire use for stator to motor & aluminium wire use ?

1 Answers   SSPL,

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what is inrush current in transformer?

17 Answers   Bhel, Essar, GMR,

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how to select DG set for certain load?

7 Answers   ACC,

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during the period of armature reaction ,if the brush shift is not accomplish, what happen?

1 Answers  

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which type of A.C motor is used in the fan (ceiling fan, exhaust fan, padestal fan, bracket fan etc) which are find in the houses ?

25 Answers   Airtel, MPPTCL, USSA,

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How do you select a cable size(cu&Al)for a particular load?

2 Answers  

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What is cathode ray oscilloscope (cro)?

0 Answers  

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