Interested to Buy Any Domain ? << Click Here >> for more details...
Answer Posted / mangesh salunkhe
neutral comes in star connected systems. As per kirchoffs
current theorem current comming at any junction is curent
going out from that junction. if we apply this law in star
connected systems we could find out that under normal
condiations current flowing in neutral is zero 0. in such
systems many a times neutral is connected as neutral path.
under normal conditions with rated voltage, pf equipment
draws rated current and consumes. hence we could find that
for balanced systems in neutral there is zero current. But,
under fault conditions (e.g. phase to ground fault at
equipment end) the current drawn from system is several
times than rated. this high current drawn from phase
conductors. if we allow this current to flow our system is
already damged but we also damages other networs connected.
hence to stop this current in short curcuit conditions we
use fuse in phase. once supply is disconnected thers no use
disconneting neutral!
| Is This Answer Correct ? | 12 Yes | 6 No |
Post New Answer View All Answers
Can any one provide the inspection procedure of MIMIC for VFD panel? Details: If someone wants to have a mimic in the VFD panel what are inputs considered for the mimic(like on,off,trip) whether we are able to add speed variation in the mimic(if so how can we get) and what are the parameters to be checked in the MIMIC during inspection?
what is meant by poly phase induction motor ? how its operating by single phase or three phase?
What are marginally stable systems?
What are the differences between single phase and three phase?
why using transformer and thyristor switch in 3 phase apfc panel
I completed iti in2004 I was worked in A grade contractor can I get c licence
For refrigerators the motor current is raised beyond its rating on both conditions when the voltage of the system is more(say 270v) than the rated voltage(220v) as well as when the voltage of system is less(say 160v) than normal voltageof 220v, why explain?
Why is the starting current high in dc motor?
Where can I get CPWD electrical specifications & Shedule of rates? Please help me
what is the difference between RMS & TRUE RMS VOLTAGE
Define what is the function of anti-pumping in circuit breaker?
what is the Earth Voltages in Power Plants, Sub-stations, Industries, Residential & Commercial Buildings.
can we find the inductance of a induction motor?
I WANT HOW CALCULATE TO CABLE FOR WELDING PLANT ?
exolain the star delta connection
