if the length, number of turns and area of coil are doubled
then inductance of the coil becomes.?
can we keep open the secondary of current transformer?
why do we use star-delta starter. what is its need?
what is RTU with SCADA connection ?
1)Explain why the cradle guard is used on railway crossing in overhead line construction?
What is the rating of circuit breaker needed for 300 KVA load in 33 KV supply line in a transformer of 33 KV / 415 Volt ?
1.What will be stored in online ups EPROM IC?
what is the difference between surge arrestor and lightning arrestor ?
what is the gas pressure at normal & operating conditions of sf6 cb??
please I wont know how to calculate the vector group for power transformer ZNyn11 best regard.
i have applied for the post of RRB section engineering chennai board please send me previou papers and solved answer. my mail id jagarapusrinivas@gmail.com
When PRV operated at power transformer ,can anybody tell me particular pressure for 50mva transformer plzzz.
does frequency affects the load? if yes elaborate it.
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