1. how much normal earth resistance in earth pits(neutral
and body earth) and transformer neutral and body earth &
panel earth.
- 12 Answers
- 96517 Views
- HP, Malladi Drugs and Pharmaceuticals, Pearl Engineering, PL, I also Faced
- E-Mail Answers
Answer Posted / rr0505
Earth resistance of earth pits shall depend on the terrain
in which the same is provided. Accordingly, based on soil
resistivity data of the location, no. of earth pits is
determined to ensure Grid earth resistance value below 5
Ohms for electrical grids,
For solidly grounded neutral of transformers, resistance
between Neutral & Body earth as well as panel earth shall
be zero.
| Is This Answer Correct ? | 124 Yes | 24 No |
Post New Answer View All Answers
Why GRR starts from 60% of motor speed why not less than 60%?
ACB & VCB how do work and saftes and how can maintenance in this and parts name show with picture
Does the motor power displayed on the Motor name plate is the mechnical power motor delivers or it is consumed power from the system?
WHAT IS FAULT CAPACITY OF HT MOTOR TERMINAL BLOCK? ANY BODY HAVE ANSWER PLZ....POST IT.
In parallel operation time both NGR’s close or not close if both close what will happen
Can anyone please give me the parameters , formula needed to calculate the circuit breakers for building services.Thanks
I NEED RRB SYLABUS FOR JE ELECTRICAL ,PLEASE SEND TO MY E- MAIL ID joo28_eee@yahoo.co.in
How LT megger works ?
Explain in brief description about the operation of DG sets.
why core is useful for a transformer ?and also in its operation ?
what is rocking arrangement in arc heating
Define resonant peak?
although ckt breakers have taken the place of old fuse. But instead of it , these older ones are still used in the industries and homes ? why .... what are their advantages and disadvantages ? which one is leading and winning the race and competition ?
what is the effect of vector group while phase sequence of a generator changes,whether the vector group changes or not
A 230V dc shunt wound motor has an armature resistance of 0,15Ω.When operating on no load at 650 rev/min the armature current is 6A . The motor takes a full load current of 85A. Calculate the full load speed if the field flux is (i) maintained constant (ii)reduced by 0,03
