Interested to Buy Any Domain ? << Click Here >> for more details...
i have one transformer 1000kva, 11/.433kv. we are using
200/5 amp. ct unit for measuring purpose, & one 800 amp.
V.C.B Unit for the same t/f operate, i wants to known the primary
current of T/F is only 53 amp. why we used 800 amp.
V.C.B ? & 200/5 amp. CT Unit.
- 4 Answers
- 13593 Views
- I also Faced
- E-Mail Answers
Answer Posted / krishna chaitanya
first u must know that transformer transforms with
no change in power. As its 11 kv on primary side as
per funda you can calculate primary current 53 amps.
P = vi cos fi. A 100/5 ratio ct is enough to measure.
But its always advisable to select equipments with
larger than required ratings. Sometimes u'l see a
300/5 ratio ct.
and vcb, 800 amp vcb is for load. There'l be another
breaker at secondary of transformer with larger than
this amp rating. 800 vcb is provided for a particular
load control.
checkchaitu@yahoo.com
| Is This Answer Correct ? | 1 Yes | 2 No |
Post New Answer View All Answers
What are dependent sources?
how to calculate the distance relay faulty zone?pls explain?
how to calculate distance between busbar supporters for LT panel, what are the factors influencing in this design
A low wet bulb temperature indicates
I want single line diagram for AMF & DG syncronizing panel
which is the most advanced form of SF6 BREAKER?Can we use other gases to quench the arc?
Write down the brushes of a de machine.
How earthing/grounding done in aeroplanes and ships.
If I want to buy a new Xformer for my plant what are the main parameter will I need to check?
i have done diploma and btech in EE and live in Chandigarh so kindly help me how can i make my competency certificate in my area.
when measure the core loss of three phase distribution transformer or three phase reactor loss, one phase shown negative watt loss. why??
Why does an induction generator is preffered as compared to synchronous generator in especially a wind energy power production project?
why sometime we get electrical shock while touching the ballon of dish tv connection ? which we should not get.
Tell me in detail about c.t. And p.t. ?
How to calculate the time setting for star connection in star delta starter? For example 10KW 3PH Induction motor.
