Answer / sriman

can u give me the answers for Q5, Q6, Q9

Answer / shivangi

for Q no.4
The technical field relates generally to a transmission
device for transmitting a signal through a transmission line
between circuit blocks having different power supply systems
and to a semiconductor integrated circuit for communications
suitable designed to communicate by using a differential
voltage signal between communication lines.

Answer / jiten sharma

For question 4:

Transmission line is basically used to transmit the power
for long distance. the voltage rating for transmission is
different based on the distance between the sending and
receiving end station i.e. 66 kV, 132 kV, 220 kV, 400 kV
now days in india we are developing the grid at 765 kv
voltage level also.

While the communication line is basically used for transmit
the signels from sending end to receiving substation with
the help of PLCC (power line carier communication). which
is part of transmission line. High frequency singles are
super imposed with transmission line which are used for
comunication and protection purpose.

Regards,
Jiten sharma

Answer / divya

Can you please give me the answer for Q) 3, 5, 7, 9

Answer / yuvaraj kamle

Answer for Q1

when we will give the supply at primary side the transformer core will COMPRESS and ELONGATION and this
is called MAGNETO DESTRUCTION,DUE to this reason the transformer make noise.

Answer / amit mishra

1.when in a transformer its varnish become burnt, than air
surrounds the space and it works as a capacitor,thats why
noice is occured.

2. transformer oil dielectric strenth is measured by Break
down voltage test.

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