Answer Posted / antu paul ekkan joseph
The value of potential(volts) for a balanced polyphase(eg. 3 phase system) is zero volts.But for unbalanced polyphase system the value depends on relative phase shift angle between phases.For single phase system neutral is the normal return path for the load current.But earth is supposed accidental bypassing path for the fault currents(eg. shortckt. current,leakage current,etc. etc..)It might be might not be a p.d b/w neutral and earth depends on the type of distribution system (single phase or poly phase),type of earthing system ie, TN,TNCS,TNS,IT,TT and its connections.
| Is This Answer Correct ? | 6 Yes | 2 No |
Post New Answer View All Answers
Why electrical power generation and transmission done in 3 phase system not more than 3 phase ?
what is model question rrb junior engineer electrical gr.II
What is Annunciation?
How much load can be taken for chiller from 1500 kva transformer
11kv/433v delta/star distribution transformer primary side full load Ht current is 83.33A in , but input side VCB rating 800A.why?
How to calculate ant test the burden of Current transformer
Iin ESP why positive is grounded ? why not negative ?
What are differences between Voltage, EMF & Potential difference ?
What do you mean by the zone of protection?
What is the rating of a circuit breaker needed for 300 kv load in 33KV supply line of 33/415 transformer ? Whether 800/1200 amp vaccum circuit breaker can perform for a 33 KV line in input in 415 volt in output of the transformer ?
how to select energy meter? have any calculation?
what is star delta starter? how it works? give its control and power diagram.
what is a speed of rotor when we give supply to stator of 50hz and as well as rotor of 60hz of an induction motor?????
WHY THE DIMENSION OF TWO SAME RATED MACHINE IS DIFFERENT ?
What is power in wattage of 8.5 TR AC