Interested to Buy Any Domain ? << Click Here >> for more details...
Why should we use Star-Delta connection in step down power
transformers?
- 7 Answers
- 21050 Views
- L&T, I also Faced
- E-Mail Answers
Answer Posted / arindam
Delta is mainly used on low voltage side because its line voltage=phase voltage. if it is used on high voltage side due to high voltage in phase more insulation is required. But if it is star then its phase voltage = (1/√3)phase voltage. so if high voltage applied to line of star its phase value decrease by √3 times and comparetively less insulation is required. Hence star-delta is used for step down and delta-star is used for step up.
| Is This Answer Correct ? | 0 Yes | 1 No |
Post New Answer View All Answers
hi this is hema, r there any books in particular for the preparation of the APPSC-A.E.E(electrical), if so please mail me the names ... thank u .
why the earth is taken minimum in supplying? wather it the proportional factor to getting work any equipment or a power plant?
we have 3.5MVA-11/6KV transformer. how can we calculate earth fault current and NGR calculation?
how we can explain arc heatng?
How to calculate Air conditioning capacity for a telecom BTS shelter?
How to Calculate Current Rating of SDFU (Switch Disconnector Fuse unit) for Protectionof Capacitor Bank connected to Busbar of 800Amp,in LV side of 11/0.433KV, 250KVA Transformer?
How can we convert 11 kv to 440 volt without using transformer ?
3ph motor running with unequal kw and different pf what are the reasons
how to Select Lighting arrester? What r the parameters to be considered for the selection of Lighting arrester ?
What is the need for a controller?
what kind of technical test that i need to learn because i have an interview tomorrow.. please someone help me..
How can maintain our H.T. motors used in cement plant. please send me procedure.
what is the difference between the characteristics of two different phase bushing of any transformer
Could Please Explain briefly. Why used stabilizing resistance series with High impedance bus differential protection relay.
What are the different types of transformers?
