power is the product of voltage and current.so we can
measure the value of power just by using ammeter and
voltmeter.......then why do we use a wattmeter?
6 MVA transformer secondary is rated for 725V at no load.
The incommer ACB is rated at 690 V, 3200 Amp. Would there
be any effect on performance of ACB due to lower voltage
rating?
Hi, Next week Iam appearing RRB exam for section engineer.
So help me to get modal question papers for this position.
Iam very thankful to you. Whether question will be fully
techanical format or general form. Please give me a details
regarding this exam.
17
In power transformer YnD0 Vector Group is possible or not?
if possible, what will be the vector diagram and what are
the conditions?
32
How to dimensioning SDCCH, LAPD and CS7 signaling on GSM?
100
what are the necessary basic electrical topics to learn for
mechanical engineer to deal practical problems.
i had aplied Hindustan Petroleum corporation limited for
the post of maintenance technician -Electrical,i want model
questions,if anybody have please send it or please advice?
25
Why different types of connection in transformers are used?
(star/star,star/delta,delta/star,delta/delta)Why we are
only taking in consideration of star/delta type
transformers? if only star/delta is good in practice where
doses other type of transformers are used? Note: i want to
know place of using different types of transformers other
than Star/delta type with brief description.
31
why nearly all the voltage levels are in the multiples of 11
like 3.3 ,6.6 ,33 ,11 kv.....
In a company has been installed an analog amperemeter, this
company was suplied by generator X, there is no problem in
the ampere meter, rigth now this company's supplied by
generator Y then the pointer in amperemeter vibrating. What
happened? Why?
Thank's
24
what is the earthing condition between earth & phase.
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