why we step down voltage level from 33kv to 11kv and 11kv
to 415v.Instead we can step down voltage from 33kv to 415v
directly using single transformer.
- 12 Answers
- 68988 Views
- ABB, Adani, Central Electricals, Electrical, HCL, I also Faced
- E-Mail Answers
Answer Posted / sunil walia
In the past the Electricity take over points were at 11 KV
and feeders used to be 11 KV feeders. Stepping down to 415 V
was done for individual pockets. Subsequently State
electricity boards mandated that electric supply will be
given at 33 KV or above depending on load. Hence, takeover
was converted to 33KV, However the old 11KV feeders were not
replaced. So stepping down was done in two stages ie
33KV/11KV and 11KV/415V. Now in some all new townships
33KV/415V is being with feeders at 33KV. However, this is
limited because of the ambient quality and cost of 33KV
cables, switch gear etc. Considering the industrial quality
and output 33KV/11KV and 11KV/415V circuits shall be used.
| Is This Answer Correct ? | 12 Yes | 16 No |
Post New Answer View All Answers
What are the two major types of control system?
What is the rating of a circuit breaker needed for 300 kv load in 33KV supply line of 33/415 transformer ? Whether 800/1200 amp vaccum circuit breaker can perform for a 33 KV line in input in 415 volt in output of the transformer ?
What is the formula for calculating impedance of transformers connected parallel at fault level 50KA?
what is reverse power relay brief explanation and in b/w where it is connected
What is the types of HT motor testing
wheather the size of windings in motor and generator are the same
What is the formula to calculate the rating of a three phase air circuit breaker
In electrical what is earth(ground)connection, wht is the importance of it, why it is recomended to maitain below 3VAC between Neutral and earthspecially in PLC used machines?
what is 30-phase of transformer
how to calculate maximum current
help me with the question that might be ask on the interview for technical position
Explain the laying procedure and laying depth of submarine/subsea power cable for 220/400KV system? Also available cable diameter?
Can we use shunt trip coil instead of trip coil with protection relay for protection?
state types of reflectors in illumination engg. ???????
Earth has zero potential then what would be the neutral potential ?
