Why in India distribution transformer are connected in Dyn11
when we know capacity of v-v connection can be increased by
adding only a single transformer?
In India according to indian standard we use + or - 30 degree phase shift between LV and HV side.
so we can use Dyn11(for star LV is leading delta HV with 30°) or Dyn01(for delta HV is leading star LV with 30°)
It depend on 12 hour clock like 1=30°,2=60°......11=330°or(-30°),12=0°
Is This Answer Correct ? | 6 Yes | 0 No |
how to test reverse power trip?
what is the minimum bdv value for 400 kva transformer?
How the Oil Surge Relay works? How it protect the OLTC?
What is the formuala to calculate the rating of motor protection circuit breaker
why the supply frequency in india is 50hz?
Why DC weldings sets preffered over AC considering human safety aspects ?
what is anti-pumping relay and the significance of it in a switcgear cb control system?
how to calculate the ct burden?
why we use star connection in HT motor? and delta connection in LT motor
what is the function of a circuit breaker ?how does the circuit breaker function during normal operation of an electrical system
In dc motor starter there is less voltage required for holding contactor that's may why it is called no volt coil. but in ac starter why holding contactor is called no volt coil.
if negative of DC supply used and positive is grounded through EGB, and if ELCB used in the system then is it sense the positive volatge and get tripped is it possible?