Answer / kumar

therotically it should be 0V. But practically differences
lies for which upper limitis are been mentioned.
For electronic systems like telecommunication it less than
5 V, for power systems less than 100V.

Secondaly , it may connected to earth depends on what
neutral you system needs i.e. fixed or floating.
Moslty it is connected to earth for safety of personal &
euipment.

Answer / jais thomas

THE EFFECTIVE VOLTAGE BETWEEN THE N AND E OF A SYSTEM
SHOULD BE ZERO WHICH MEANS THERE IS NO SHORTING,
DEFINITELY THERE WILL BE CONTINUITY BETWEEN N AND E BECAUSE
THE N THAT IS GENERATED IN A STAR SYSTEM TRANSFORMER IS
GROUNDED WHICH MEANS THAT THERE IS A CONTINUITY IN N AND
E.THIS SHORTING BETWEEN N AND E SHOULD ONLY BE IN THE
TRANSFORMER LEVEL AND NOT IN ANY OTHER PART OF THE SYSTEM

Answer / abdul salam

The exact voltage between earth and neutral can not be
forecast because it ia not a fixed quantity it depends upon
the how effective neutral earthing is provided to the
system and howmuch unbalancing of load is present in the
system, ideally it should be zero but can not be achieved
as some unbalancing is always there in the system.

There should not be any continuity between earth & neutral.

What is meant by derating factor?

0 Answers  

---

what is the diffrence between kav and kvar?

5 Answers  

---

how to calculate power loss cost of aluminium conductor and copper conductor?v=500v.i=100A.x-section area=68mm.squre conductor

1 Answers  

---

Thermal withstand capability under full short circuit conditions, in terms of number of times of occurrence of short circuit and corresponding anticipated percentage reduction in transformer life.

0 Answers  

---

why the name mho relay,despite the locus of circle is impedance?

1 Answers   KSEB,

---

What are the components ofan HT panel in a 11kv power station?

2 Answers   Reliance,

---

How does zener phenomenon differ from avalanche breakdown?

0 Answers  

---

Should the neutral earthing of 33/11KV D-S transformer, be connected to the earth grid?(Yes/ NO) why?

1 Answers   HAL, Vijai Electricals,

---

If single phase voltage level is 230V than why three phase voltage level is not 660V ?, but it is only 440V.

16 Answers   BSNL, DOS, EFS, HMT, L&T, TCS, ThyssenKrupp,

---

HOW TO CALCULATE CAPACITOR BANK OR HARMONIC FILTER CALCULATION

0 Answers   ECCI, EFS,

---

1)Why potential transformer primary site grounded? 2)can be loop between neutral & body for grounding? 3)What is the difference between ELCB &RCCB? 4)Why we use iron core in transformer insted of wooden core? 5)what is the principle of excitation? 6)Why we test the core balance test for transformer? 7)what is creepage?What is the creepage length for insulators at different voltages? 8)How much type of relays used for differential protection of generator,transformer & busbar protection?

5 Answers  

---

How does solar power system work?

1 Answers  

---