Interested to Buy Any Domain ? << Click Here >> for more details...
Can we loop AC neutral wire with DC neutral wire?
- 5 Answers
- 10759 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
EXPLAIN USE OF ROCKING ARRANGEMENT IN ELECTRIC HEATING?
HI SIR, AM PREPARING FOR RRB FOR SECTION ENGINEER POST. PLZ SEND ME THE PREVIOUS QUESTION PAPERS AND HELP ME. I HAVE NO ENOUGH TIME MY EXAM DATE IS 22ND JUNE.... MY EMAIL ID IS nalla.amarnath@gmail.com
what is the role of energy meter in distribution system ?
Explain what cmos is and its benefits?
Why 11kv to be generated in generation station
what is W.T?specify the acceptable range?
kVA rating of ordinary transformer is increased when connected as an auto transformer because A transformation ratio increased B secondary voltage increased C energy is transferred both inductively and conductively D secondary current increased
differnce between single acting and double acting solenoid valves
what is the differebt between ac and dc fuse?
UG cable sizes were specified in sqmm. But practically its not coming to mesure. What's the reason for that? And how they specify the size of the cable?
What is accuracy of a measurement?
What kind of Neutral CT can be placed in 11/0.433KV transformer to be used and what are its specification?
Why we use 4-20 mA Analog signal for the PLC input? Why not 0-20 mA? Why not 5-25 mA?
define as synchronous generator
what are your career plans upon completion of the programme and the relevance of recity generation to your professional development?
