what is the funda of earthing? Explain breifly about
earthing?

Answer Posted / rajkumar nirmalkar

We provide earthing to restrict the fault current since the
earth is considered to be as zero potential .
We also protect man and machine from the hazardous current
flowing from the equipment in case of any fault.

Is This Answer Correct ?    27 Yes 4 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

how to put cable sizing and cable glands size for respective cable & Cable Lug size in a DB sectors???

1655


If a current -8+6sin6t is flowing three ammeter, one is a centre zero PMMC meter, one is true rms meter and one is moving iron meter. What are the reading of these three meter respectively?

1640


how we can set the IDMT relay.

1671


Where is the best place to mount  distribution panel in a house.

1632


when we have to use UPF wattmeter and LPF wattmeter? what is the difference between UPF and LPF wattmeter in terms of construction?

1927






What is the use of bundle conductors?

628


hi plz send me reliance placement papers..i.e electrical technical papers that have been asked in reliance test.

2468


State ohm’s law?

654


how many Classification of fire extinguisher

1673


state the working principle of incondenscent tube?

1525


Do inductive loads have distorted current waveforms ?

1397


FOR 16/20 MVA 132/33 KV ONAN/ONAF TYPE TRANSFORMER IT IS DESIGNED FOR 16 MVA WITH ONAN CONDITION.IT BECOMES 20 MVA UNDER ONAF CONDITION.LOAD LOSS IS GUARANTEED FOR 65KW AT 20 MVA AND % IMPEDANCE 13.75. PLEASE TELL US AT WHAT LOAD LOSS AND % IMPEDANCE IT SHOULD BE DESIGNED FOR 16 MVA AND WHAT WILL BE ITS EFFICIENCY AT 20 MVA?

2949


The magnitude of sum of two sinusoidal av voltage is equal to 230 volt.the magnitude of each individual voltage is also equal to 230 volt.what must be the phase difference between voltages?

1173


why steady state stability limit is greater than transient stability limit ? How it can be explained ?

2426


what is the diff. between x'mer , isolation x'mer & ultra-isolation x'mer ?????????????

1714