What is the difference btwn grounding and earthing?
Answer Posted / l.chandrasekhara reddy
Grounding is used in US Electrical installation Standards (NEC,UL)
Earthing is used in European Electrical installation Standards (IEC)
Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
What is the formula to calculate the rating of a three phase miniature circuit breaker
what material is the electrical housing wire made of? is there any difference for the telephone lines?
Why earthing is necessary for any equipment?
how we explain parallel paths armature winding?
what is solkor relay and which condition it will act?
Please define ohm’s law for a.c (alternating current)?
HELLO EVERYONE, I RECENTLY HAVE FOUND ONE PROBLEM, I WAS TAKING NO LOAD TRIAL OF AN HT MOTOR 920 MOTOR , 1440 RPM , 6.6 KV, WITH AUTO TRANSFORMER. AT 450 V, LOAD WAS 40 AMP AND SPEED WAS 250 RPM. BUT AS WE INCREASE VOLTAGE FROM 450 TO 480V, LOAD BECOME 41 AND SPEED REDUCED TO SOME RPM . SO WHICH PHENOMENON ACTED HERE FOR REDUCING SPEED.?? AND IS IT HAPPENING ALWAYS OR IT IS RARE? I ALSO HAVE FACED SUCH PROBLEM WITH FEW LT MOTOR ALSO.
What is Auto Mains Failure Panel & Auto Synchronizing Panel
What is a commutator?
What is warm / cold start of HT motors. How many warm start & cold start are possible in a day?
1.Z transform always lies around ? a) origin b) pole c) zero d) z=1. Multiples Mcqs which is bother me can’t find answers on internet. Some help required with little explanation . Note: this is not homework or related to any test. Thanks
what is mean by kneepoint voltage? when it will happen? ( my doubt is, if CT secondary is open means ct get saturation or blas? what are factors are required for calculations? plz give currect anws:
How to calculate cable rating for 3 phase supply?
can any tell me why slope 40% and 80% is calculated in differential protection?
a governer in an Ic engine controls the