Answer Posted / farooq, nafees, hunjra, haral
For residential & small commercial buildings, Earth
resistance(E.R) should below 25 OHms(acceptable).
While, for industrial installations, It should below 1 Ohm
ideally, however, below 5 Ohms are also acceptable.
| Is This Answer Correct ? | 15 Yes | 2 No |
Post New Answer View All Answers
write circuit diagram for a motor rotate in forward direction once it started and when pressed the same button it should rotate in anticlockwise.
Single line digram for 11 kV to distribution use go,la and do
What should be the Sandwitch type Al. bus bar capacity for 2 M.W.Gen. set, having continuous full load current- 3463 Amps,ambient temp.- 50 Deg. C., Required temp. raise-20 deg.C., it will run 24 hrs, 365 days on full load, required highly reliable.
What is the necessary and sufficient condition for stability.
what happens when dc generator coupled with cycle shaft.also explain what happens when its loaded
my bachelors was done with EEE now i got admit in NU with CS as course. how to answer this qns 1) why u choose cs? 2) why u changed from eee to cs
Discuss about gear cutting machines.
why the carbon brushes are broken in srim while the motor runningtime
What is power distribution criteria for converting single phase unbalanced residential load to 3 phase star connected balance system. Does total KW converted to 3 Phase. Means Divided by root 3.
if two transformers are placed parallel & both have fault impedance of 50KA will it increase or decrease show example?
What is the difference between earthing,ground&nutral?
Which motor connection is preferable star-delta or delta-star?
formula for calculation of switchgears(i.e. contactor, fuse, cb, relay etc.), if load current is given?
What is gross error?
What are approaches to tackle sedimentation problem of reservoir?
