Answer Posted / deepu electrical supervisor
Yes, there will be current flow in the neutral wire based on the unbalanced condition. We used 3.5 core cables for power circuits and high gauge copper as its earth. In the case of lighting circuits we used 4 core cables cables and less gauge copper wire for its earth. Normally, the neutral point is properly grounded from the transformer neutral by means of copper plates, hence it is at zero potential. We know current flow from high potential to lower potential, so when we switch on the load there will be a tendency of current to flow from phase to neutral but the power is consumed by the load based on the ratings and its types. But at balanced load condition there will be very less current flow on the neutral wire because the load consumes full current. But when unbalanced fault occur there will be return current flow in the neutral wire to the source. In this case the circuit get tripped by circuit breakers.....
| Is This Answer Correct ? | 2 Yes | 0 No |
Post New Answer View All Answers
How to measure size of cable on a given load
what is ratio of copper wire size and current ?
is it possible to start a motor in felid connected to a remote mcc
What are the site acceptance tests for power cables, DG Sets, LT panels & 30kVA UPS ?
how many safety really of DG sets.
what material is the electrical housing wire made of? is there any difference for the telephone lines?
What is the different between conventional MCC and intelligent MCC? Common controller or controller for each bucket
i need about 10 years of GATE solved papers in pdf format and even mock tests toooo
What is difference between isolator and circuit breaker?
How would you calculate power loss in a resistor?
How to do bus bar short circuit calculation for 230KV/11kv, 60 MVA Substation?
Power Factor Correction Panel (Manual & Automatic)
How much load can take a 16 mm aluminum cable 3 phase
what is the diff. between x'mer , isolation x'mer & ultra-isolation x'mer ?????????????
dear sir/madam i want to get some knowledge about RRB EXAMINATION(section engineer) 1- what is minimum cut off 2- wht portion is major portion . 3- can any body provide Sample paper. thanks & regards ashish
