WHY WE NEED NEUTRAL FOR 3PH 400 OR 415 VOLTS POWER SUPPLY (4
WIRE SOURCE).
Answers were Sorted based on User's Feedback
Answer / manikandan
in 3ph 415 vac 4wire system the neutral used for 1ph electrical equipment power supply. i.e. nominal voltage 230V 1 ph can be obtained between any one phase and the neutral.
Is This Answer Correct ? | 1 Yes | 0 No |
As to the domestic loads i.e lightning loads required the
neutral bcz of This High voltage supply its being connected
with the distribution substations here this voltage is being
step down low voltage by using transformer. Normally the
power transformer primary is formed in delta connection to
avoid the leakage currents and its secondary is formed in
star connection. as required above with the same.
Neutral & Earthing are tied together. neutral its carrying
charging current also acts as return path
Is This Answer Correct ? | 1 Yes | 2 No |
Answer / wafiiq
We use 3PH 4 Wire system for secondary side (LV) side of
distribution transformers. The first 3 wires are the three
phases while the 4th wire is the neutral. Grounding the
neutral, a process known as system earthing, will allow
single phase users to have single phase supply from the
distribution transformer, i.e. nominal voltage 230V can be
obtained between any one phase and the neutral. Thus, by
grounding the neutral, we are making sure that it remains
at 0V, i.e. at the earth potential. As for 400V, is simply
the line voltage, between any two phases.
Is This Answer Correct ? | 1 Yes | 2 No |
what is meant by insulation voltage in cables? explain it?
why protection and metering CT's are always connected in star why not in delta?
what is the safety of ACB & VCB and how can this work and how can the service the ACB & VCB parts name with picture
21 Answers ABB, ACB, Bharti, Claris Lifesciences, Honda, L&T, RotoPower, Sterling Wilson, Wipro,
how do i calculate voltage drop-if length is 1000 meter,amps is 160a
Can anyone tell me some hints about what type of questions are asked by the interviewer by an Electronics engineer when company is installing an IPP and wants a team of engineers?
why causes the burnt of AC Electrical Motor ?
why ac wave is sinusoidal not square or triangular wave what will be reason
What is IDMT? What is the principle
differentiate PLC,DCS,SCADA?
what is ICU and ICS in breaker ratings
what is the function of conservater in transformer
calculate multiplication factor of a trivector meter with line ct ratio 200/5A, line PT ratio 11000/110V and meter CT ratio 200/1A and meter pt Ratio 11000/110V.