How do you maintain the earthing resistance?
Answer Posted / nagarjuna
earthing resistance is maintained below 2 ohms.we should
add salt and water where we r grounding the equipment.
| Is This Answer Correct ? | 9 Yes | 3 No |
Post New Answer View All Answers
what is the minimum (Common factor) insulatin resistance of the following a, 4mm sq wire b, cable from 50 mm sq to 800mm sq
Draw a 230kv two-bus bar system showing the following. 1.Two generators (150MW) each connected through one 15.75/230KV transformers 2. 1 outgoing lines 3. Two 230/130 KV transformers 4. BUS PT's 5. CT
how to decide choke rating for drive?
Mention the disadvantages of low power factor?
how balanced in star delta connection ?
Define liftable weight of a transformer? Does the total weight of transformer include oil weight?
What is state space method ? Why its used ? Can it applicable on linear, non-linear, 1st order, higher order, homogeneous, non-homogeneous, open-loop , closed loops , stable & unstable systems ?
we have 3 single phase transformers. how will we generate 6 supply from 3 phase supply input
what is the use of vcb & isolator in substation?
what is the difference between megger and earth resister ??
with out colour codeing on conductor how can be find what is r,what is b,what is y phases.....
Is there any specialised book to refer about fault level calculation both in MV and LV side??
What is class ab operation?
what is per unit calculation?looking for simple and strong explanation thk u
What are merits & De-merits of State-Space Method? What is series programming, parallel programming, general programming & direct programming ? And, difference between these programmings Techniques ?