Interested to Buy Any Domain ? << Click Here >> for more details...
Can we loop AC neutral wire with DC neutral wire?
- 5 Answers
- 10944 Views
- ABB, I also Faced
- E-Mail Answers
Answer Posted / s.r.nalawade
1.In AC circuit there is 'NEUTRAL' point where as in DC circuit the negative terminal is always connected to battery negative.
2. Consider example of Diesel generator. Battery is used for giving start command to starter motor through solenoid. Same battery is used for configuration of RUN/STOP command. Digital switching inputs like low oil pressure, high coolant temperature, remote start/stop are active low. i.e when battery negative is activated, generator controller will respond immediately.
3. Also there is main AC alternator coupled with engine. L1,L2,L3 & neutral are four terminals from alternator.
4. If AC neutral & DC negative is kept common, then unbalance neutral current will interfere with DC negative. Also, you will get line to neutral voltage (240V AC in case 3 phase 415V, 50 Hz system). Imagine the adverse effect of such a high potential on controller digital inputs. Also, as engine block, mounting skid & alternator body & battery negative terminal is interlinked, it will cause electrical shock to operator in contact with generator. Therefore AC neutral must be isolated from DC negative.
| Is This Answer Correct ? | 3 Yes | 0 No |
Post New Answer View All Answers
Logic using 1 kV or 1,1 kV grade in house wiring Low voltage cable. Explain/suggest? some use 1kV and some prefer 1.1kV grade insulation low voltage cable why??
my question is how to answer the question "you are from b.tech eee background and why do you want to go for banking
Why are cables rated for 40 KA for 0.25 Sec fault current rating?
What is the reason that the humming sound is coming from the induction furnace panel?
How to design the no. of ceiling fans required in 5mtr X 10 mtr X 3 Mtr hight room?
circuit diagram of trip circuit supervision relay
I am completed DEEE in tamilnadu, now i am working in andhrapradesh with 2.5 year experience in relavent field. capacity of the tranformer is 11KV, 1MVA Transformer, i am eligible for getting c licence in andhrapradesh pl help me.
What is the selection process of breakers. Can any one please give a formulation on same?
What Is Sampling?
What is an alternator impedance value?
What is electrical grounding?
in the case of 6.6kv motor starter combination contain fuses on it VCB. but in 11KV motor starter combination Fuses are not using in it's VCB why?
how does it help for selection of a transformer.
How much weight an electrical engine can pull??
1)how to reduce the value of tan delta of trasformer and CB,bushing,CT&PT,CVT ? 2)how to reduce the resistance of CB contact and its operating time? 3)plz.....send me the project report on conditioning and monitoring of substation equipment on my email id (gusaiyogendra03@gmail.com)
