what will happen if instead of neutral we use earth wire as
return conductor?if we can use ,then why we are not using in
our day to day appliances?please justify the answer
- 11 Answers
- 29017 Views
- NTPC, ONGC, I also Faced
- E-Mail Answers
Answer Posted / rajendra singh
The neutral is a current carrying conductor, but at "ground" potential or close to.
By using the EGC as the neutral, you have neutral current on metal attached to the electrical system. It will and has caused fires and there is the potential for a fatal shock.
For example you use the EGC as the return neutral. An electrican is working on a circuit and opens the neutral and gets a fatal shock.
| Is This Answer Correct ? | 7 Yes | 2 No |
Post New Answer View All Answers
1- XC and the RC time constant are both measures of the reaction of C to a change in ____? 2-The power factor is a numerical ratio with a value between 0 and 1 equal to the ______________ of the phase angle. 3-When V and I are out of phase because of reactance, the product of V times I is called ______________ power 4-For _____________ inductors, the branch currents can be added algebraically. 5- The ______________ power in watts can be calculated as I^2R 6-Calculate XL with L = 30mH and f = 1kHz ( I have Xl=2piFL 2*3.141592653*1kHz*30mH =188 ohms Please check) 7-A parallel RL circuit has the values, R = 5kohms, XL = 5kohms. A voltage source of Vt = 10Vrms is connected in parallel to R and L. Determine the total current, It delivered by the voltage source Vt. 8-A series RC circuit has R = 1Mohm and C = 1microF. How long would it take for the capacitor to fully discharge if it is initially fully charged? 9-A circuit has real power = 300W and an apparent power of 500VA. Determine the power factor and phase angle. 10-The time constant for an LR series circuit is T = 0.1s and R = 10ohms. Calculate the inductance L.
What are the advantages of nichols chart?
describe the fully control circuit diagram of ac drives
how hazordious area is classified at an oil & gas plant and categorise suitable class of electric equipment in that area like induction motors, LCS, Lighting Fixtures Fluerescent/Flood lights Mercury& sodium lights, J.Bs, Power Cables etc
what is the setting of locked rotor in HT motor ? (answer expecting in percentage)
why do we lay up the core of a cable?
why 5kW motor becomes unbalance if its relay trip 1st time and its set value is 7.0 A
What is Meter MF if External CT Ratio is 150/1 , PT Ratio is 132/110 Meter CT Ratio is 200/1 & Meter PT Ratio is 110/1
What is the theoretical reason for the size of a zig zag grounding transformer to be 1.732 times less than that of a wye-delta grounding transformer used for the same application?
if the motor rated speed is 950rpm. how to change the above rated speed? is it possible?
any body,pls tell me how to done relay coordination ? how to coordinate by TCC curve?how to read the tcc curve?
There are different classes of protections in power plants.class a,b,c are clear..is there any class d and e r there..and elaborate class b protection.
what is the excess air in furnace
IF 8255 CONTROL WORD IS 94H,Tell the chip port work mode ?
What OPGW is better than Microwave or PLCC???
