Why we use Y-Y connection in power transformer (8-10 MVA,
132 kV to 11 KV)and D-y in distribution transformer (2 MVA,
11 KV to 440 Volts)?
Answer Posted / rajesh kumar
we use y-y conection in exctra high voltage transformer
like 132kv as we know that in star connection line voltage
is-1.732.phase voltage.so less insulation required in y-y
conection.
in distrubution transformer at 11kv we can easily insulate
windings due to voltage level is low.and also get domestic
load.
Is This Answer Correct ? | 12 Yes | 2 No |
Post New Answer View All Answers
Define peak time.
While converting delta into star or star into delta ,the three values of resistances remains unchanged .Find out the value?Let In star R1=x;r2=x;R3=x On converting into delta,R12=x;R23=x;R31=x Find the value of x
what is mean by ideal infinite bus? why it is required to consider in fault short circuit calculations?
what is the difference between interconnection and intraconnections in the circuit diagrams
What is the meaning of C1, C61, C91 cable
10 tube light connect in mcb breaker.one tube light is fault.so breaker is tribe.how fault is rectified.(using 3wire phase,earth,neutral)
which capacity of RCCB used for five thousand watt electricity load?
I want to design a heating coil of 80/20 nicrome for 3.5KW please give me the calculations choosing for physical dimensions assume coil voltage will be 110V AC assume necessary conditions
what is the difference between the voltage of 5 volts capacitor and and 5volts battery?
List of equipments required foe industrial repair lab.
I have done my m.tech in electrical engg discipline. Can any one please suggest me how should I prepare for getting into phd in iit or nit.How should I prepare for getting into lecturership
An impedance of 100 ohms resistance and an unknown inductance is connected across the capacitor. The resulting impedance is a pure resistance of 500 ohms ifω = 10^5 rad/sec. calculate the values of inductor and capacitor.
how to maintain frenquncy with syncronising sub-station for distribution
What is meant by control system?
how to Select Lighting arrester? What r the parameters to be considered for the selection of Lighting arrester ?