when we r using 3.5 cable for a bldg. and put laod on each
phase using the neutral and neutral is the return paht for
the phase so the current of the neutral must be Ir+Ib+iY
(return).But the size of the netural is .5 as comper to the
phase.
Answer Posted / k.p.sharma
IN 3PH. NEUTRAL CARRIES ONLY UNBALANCE CURRENT MEANS IF ALL
PHASE ARE CARRYING SAME FOR EXAMPLE 20AMPS THEN CURRENT IN
NEUTRAL WILL BE ALMOST ZERO AMPS.
| Is This Answer Correct ? | 11 Yes | 0 No |
Post New Answer View All Answers
why the value of k is more in shell typr transformers?
How shall i select the value of capacitor or inductor in a system?
how line turns ratio changes in 3 phase with change in connection
1. If 8.35%Z means the percentage impedance of 132kV-line from power company, we will like to confirm its base capacity?
How to Preparation of online test
There are Two questions about Steam Turbine Generator... What is HRSG bypass of LP, HP used for in power generation? In particualar, in the event that fault of HP bypass, there would be STG TRIP in operation but none on the LP bypass fault...what's the reason ?
i have attended the interview on 4th June,08 at Kolkata in IOCL, can anybody tell me what is its result
3Cx240 & 3Cx300 sqmm Al. cable from lv side. What is the calculation for this cable??
List out the the types of Mounting Light fixture?
What is diversity factor in electric installations?
how to discharge 3 phase power factor correction capacitors
what is relation between ct and pt ratio with multiplication factor of a energy meter? is there any other factor on which multification factor depend?
What are the differences between single phase and three phase?
what is KA rating and how can we choose switchgears on applications
What is EMC filter in VVVF Drive ?