why we do 2 types of earthing on tranformer ie:body earthing
& nutral earthing , what is function.
i am going to instal a 5oo kva tranformer & 380 kva DG set
what should the earthing value
Answer Posted / guest
The two types of earthing are Familiar as Equipment
earthing and Sysytem earthing.
In Equipment earthing: body ( non conducting part)of the
eqipment shold be earthed to safegaurd the human beings.
system Earthing : In this neutral of the supply source (
Transformer or Generator) should be grounded. With this,in
case of unbalanced loading neutral will not be shifted.so
that unbalanced voltages will not arise. We can protect the
equipment also. With size of the equipment( transformer or
alternator)and selection of relying system earthing will be
further classified into directly earthed,Impedance
earthing, resistive (NGRs) earthing
Both are equally importantand compulsory. As per your
requirement Earth pit value will be below 10 Ohms.
Is This Answer Correct ? | 52 Yes | 3 No |
Post New Answer View All Answers
How many types of losses occur in a transformer?
IN electrical field, WHAT ALL THINGS THE CUSTOMER WILL ASK WHILE ORDERING FOR LT PANEL (ALL TYPES OF LOW TENSION PANEL)
Write down the name of 2 lady Bir Pratin of Bangladesh
what is the differencce inn series and cascade connection??
What is the accepted limit to increase the choosen transformer capacity over the load and why ?
How much depth n width required for laying of 1X70 Sqmm Cable in Desert???
any one guide me to reduce the power factor of diesel Generator from 0.97 Leg to 0.8 Leg.with out any change in my load.
If a high resistance fault occurs,then what are the changes will happen in the system?
Explain the advantages and disadvantages of thermal power plant?
What is the form name of 'c' license, I want to download in web
sir my exam is on 19/6/2013 under electrical branch pls send me sample aptitude questions as well as sample technical questions for jindal steel and power company
What conditions are required for transformer to operate at low frequencies ?
How to calculate KVA/VA rating of PT or CT from primary & secondary voltage or primary & secondary current?
What is meant by Load Encroachment in OHL Feeder Protection?
Explain the advantages and disadvantages of hydropower plant?