Why we should use delta connection in primary and star
connection in an distribution transformer, which converts
400v a.c. voltage to 33kv.
Answers were Sorted based on User's Feedback
Answer / ravishankar.m
Generally we recevied power supply from HT.In HT side there
will be not available neutral source so in primery side we
given delta connection.But in secondary side we must need
nuetral for three phase & single phase equipments so we
will create from oueself (create from earthings) so here
the connection must be a star connection.
Is This Answer Correct ? | 0 Yes | 2 No |
Answer / jitender kotwal
AS the transmission line are designed in KVA rating which
are so to reduce the size of conductor and to reduce the
cost so at primary side it is always Delta connections and
for distributaion site it is star cinnection with a line
voltage of220 volt and all electrical equiments are
designed for the same voltage in india
Is This Answer Correct ? | 0 Yes | 3 No |
Answer / premsingh
we use delta connection in prymary becouse in prymary we
need step up the voltege & in delta connection line voltage
is more then phase voltage & we use star in secondry bcoz
in star connection provide us nutral which is nessery for
distibution because all home applances work with phase &
nutral so we use star connection in distribution end.
Is This Answer Correct ? | 0 Yes | 3 No |
Answer / sunil kode
Nuetral in used in single phase system and 3 phase 4 wire
systeme due to we star connection in secondory. in primary
used 3 phase system.but suresh kumar why not convert
voltage from 400v to 33kv.p/s explain the reason.
Is This Answer Correct ? | 1 Yes | 5 No |
Answer / raja
suresh its stepup X-former we need to increas de voltate
level please ref curent equation of star and delta
conection u can get apt answer
Is This Answer Correct ? | 2 Yes | 13 No |
what is meant by displacement & magnitude ?
Is this possible to synchronize the two different ratings of dg
Classify milling machines.
the resistance of wire having length X M is R OHEM if i streched the wire to dubble length what will be the resitance
How can calculate the daily electrical consumption of 7.5 HP motor, if the moter runs 24 hrs continiously. Also have to know about 3.5 hp chiller.
how can motor both beasrings insulation resistance can be check?
Explain thin film resistors and wire-wound resistors
How can you justify a fully carged battery by physical checkup ?
12 Answers Indian Military Services,
How to decide DO set rating of Transformer?
1. If 8.35%Z means the percentage impedance of 132kV-line from power company, we will like to confirm its base capacity?
How we calculate the size of ht cable for any transformer
How do ACB are maintenance, what are the problem occurred in ACB