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

Answer Posted / sujit288

It is the connection between the metalic body of equipment
and mass of earth for protect man and machine from the
hazardous current flowing from the equipment in case of any
fault

Is This Answer Correct ?    16 Yes 6 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

how to calulate short circuit current for the following: 1.cable connecting 11KV of 22KV/11KV transformer to 11Kv of 11KV/415V transformer 2.what cable size should i use.

1736


can anyone please help me to find the rupturing or breaking capacity in KA of circuit breaker (MCCB,VCB,ACB etc) of HT and LT side of a distribution transformer...please help with detailed step by step answer...thank you

1654


what is submersible pump?what is different between motor and sub motor?

1698


What are the criteria shall be considers for sizing Fuse and MCB? If the rated current is 10Amps what should be the fuse size / MCB Size?

1130


What do you understand by oldham's coupling ?

735






Dg pf .71 i am improve pf 0.80 what capacitor connected in dg how?

1340


234 MVA Generator 3 phase Short circuit current Values required? Gen set Rating-234 MVA, Gen Voltage-18kv, PF;0.8, Xdv:23.5 %, Transformer Rating-18/380KV, 680MVA,Yndd1 two winding, Step up TR, ZT:35.50 %,X/R 4.33 Gen CB Position, CB open ,Disconnected open, Generator Running Voltage 18 Kv, Bi mistakes generator side earth switch Closed during that time short circuit current level in 3 Phase required, and how to test on site 234MVA Generator Short circuit current,

1863


how much cable size required for 70 kilowatt load.

1261


what is the voltage between earth to neutral in lift.

1443


pls tell me function of closing coil of A.C.B.

2989


L.A. (Lightening Arrester) is located at a place from where transmission line enters the transmitting substation. So L.A. (Lightening Arrester) is the first equipments which has to encounter with lightening, high voltage surges and switching surges. It has to absorb energy of lightening, high voltage surges, and switching surges. L.A. (Lightening Arrester) is made up of layers of semiconductors. If these layers can not tolerate energy released by lightening, high voltage surges, and switching surges the L.A. (Lightening Arrester) blasts.

761


What is star-delta transformer?

801


stand by earth fault protection (51G) for transformer rating 2000 kVA,Dyn11,33/0.400 V. LV NCT ratio and necessary resistor and metrosil values how to calculate

2329


how do i commission a distribution transformer knowing all its ratings and transformation ratios?d

4075


full form of flry b

3753