Answer / bitm

it is the standard value to manufacture any electrical
equipment in India.

Answer / prathap

because frequence F=PN/120 where p= no of poles and N=speed
so in generating station they maintained constant speed

Answer / swum

1) There are two types of losses
constant loss
variable loss dependent on frequency
So if frequency is increased losses will increase

2) The Indian temperature is higher and hence High frequency
can further heat up wiring.

3) Reduce the frequency the efficiency of transmission lines
will fall

Answer / enggrashmi

its d standard value on wchich electrical equpment are designed to operate...but if we take value othr than 50hz then we have to make our own connections and eqipments...

Answer / sk rafiquil islam (kaithi,jamu

beacause of same frequency is to operate and control many of equipment & its standerds

Answer / nagarajan

Actually we are following British standard
Main reason
1.Atmospheric condition because USA people's using 110v,60Hz so size of the conductor is big one instead of we are using 220v 50hz s0 size of conductor is less and investment also less.
2.Size of conductor increases amount of heat increases.

Answer / anjali singh

For stable ac power distribution , frequency bandwidth is
between 40Hz - 70Hz .Since 40Hz is near to unstable so 50Hz
fequency is standardised in India

Answer / guest

due to atmospheric condition

how to calculate slip ring induction motor stator and rotor currents??

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what is use of reactive power in ac ckt.

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can we make a loop between neutral and body for grounding?

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1.Why sinle phase motor is not self starting 2.working principle of alternator 4.list out electrical formula

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A distribution transformer giving afrequency of 200HZ, where it is rated for 50HZ. when it will occure?

2 Answers  

High voltage test procedure of in swgr board. why should measure millivolt drop on testing time?

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whats the differece between Exd and Exe

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Sir, I have applied for the of Jr.engineer(Electrical & Electronics) & ASST. LOCO PILOT at ALL RRB BOARDS. please send me all RRB Boards solved papers in the year of 2001 tO till date. i requested send me the papers to my id as soon as possible (jet_0991@yahoo.com). (This is very urgent) Thank You,

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what is working process of star delta controlling circuit ?

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Can any body tell gulf interview question for experienced electrical engineer ?

0 Answers   Gulf,

Please let me know when replacing electromechanical Relays for protection of generators with sr489 multilin Relay, then there is no need to use 86 master trip relay Too. I am wondering this multilin relay has no contact to Stop breaker reclosing as 86 does

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