what is neutral grounding? why is it required? what is
neutral grounding resistor and how is its value calculated??
- 11 Answers
- 66380 Views
- NTPC, ONGC, I also Faced
- E-Mail Answers
Answer Posted / sophia
neutral grounding or earthing is connecting the neutral point to ground.
Advantages of Neutral Earthing:-
 Connecting the neutral of an electrical system to earth has following
advantages.
 Arcing grounds are eliminated.
 Voltage of healthy phases with respect to earth does not rise √3 times to
normal value.
 Insulation is prevented from stress of high surge voltage and hence
provides long life to insulation & equipment.
 Stable neutral point.
 Earth fault relay function becomes simple & reliable.
 Greater safety to personnel & equip
neutral grounding resistor is the resistor through which neutral is grounded.
| Is This Answer Correct ? | 8 Yes | 0 No |
Post New Answer View All Answers
What are the different methodes for calculating the short circuit Current?
1. for eg, capacitor is used for many purposes(it act as filter, oscillator, bypass capacitor, memory storage etc...) 2. Please tell me some example circuits for different uses of capacitor( whenever and whereever and however we used capacitor as a filter, oscillator tuning etc..) 3. similarly for inductor and resistors(it act as what?) and when and how we want to act as like that?, and how we can used these components depends upon our requirments with example circuits and explanation? design to act as these components depends
What the main causes of transient interruptions on Over-Head Distribution Lines?
compare between starting charactristics of synchronous motor with those of 3Q Squirrel cage induction motor
What products have you designed which have entered high volume production?
sir, I am from EEE branch.On feb 17 iam going to write an Exam for hindustan petrolium corporation Ltd.So plz send me the written exam pattern/Q's/interview questions.please mail to eee_dharmendra@yahoo.com
Draw the circuit of clapp oscillator?
sir please send me previous year questions of jspl of electrical section through which i could prepare myself fpr the test.
What current position are you holding in your current company?
sir pls send the je exam - 2008 and other model question papers..
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 is meant by IGBT how they differ from tyristor ?
HAI SENT HPCL APTITUDE QUESTION PAPER, MY EMAIL ID IS angus_eee04@rediffmail.com,angus_eee04@yahoo.com
what is the minimum pay scale for electrical engineer (building construction)in kuwait? plz revert back with yrs of experience & pay scale respectively.
I want single line diagram for AMF & DG syncronizing panel
