Answer Posted / baha al
There are three type of earthing:
1- TN-C-S earth and neutral combined in the supply network
but separated in customer installation.
2- TN-S earth and neutral run back separately to the
transformer neutral terminal.
3- TN-C earth and neutral are combined right throughout the
installation
| Is This Answer Correct ? | 3 Yes | 7 No |
Post New Answer View All Answers
how is the cable tray designed & how its total length is calculated for an Industrial plant Say for Ex. (500KW Motor Load)
please send me the L&T Emb. sys. placement papers and entire details of pattren
What is resistance reading of earth copper rod with grid and without grid?
what is the minimum (Common factor) insulatin resistance of the following a, 4mm sq wire b, cable from 50 mm sq to 800mm sq
y we use neutral,all r told its used to for closed path..k its a just used to closed path,in a transmission line y we put same conductor used n both phase and neutral..if we use less than phase conductor in neutral mean we ll reduce cost its right r wrong..if we use mean any problem occur in transmission line..
can any one tell me about the Extra low voltage systems?From where we give supply to these type of systems??
is it possible to test of bus bar in high rise building without completed full floor ?
gas turbine genrator reactances
What is a commutator?
What the main causes of transient interruptions on Over-Head Distribution Lines?
What are the different methodes for calculating the short circuit Current?
How to decide whether A / B / C / D curve type MCB should be used?
How to Prepare preventive maintenance shedule of machine tool.
if i am in front of transmission line how to know that current direction without any equipment
Why frame of the motor is specified?. If we mention KW and voltage level,automatically frame is decided or separately frame is compulsory to mention?.
