Answer Posted / oslec
Both are the same. NEC standard the term called a grounding
system (ARAMCO) whereas IEC (QP, Qatar Gas etc) they
called it as earthing system.
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
What do you mean by a phase angel of instrument transformer?
How the circuit breaker is selected for Induction motor of 100 kW, 415 volt, 0.85 power factor, 0.95 efficiency ?
What should be the voltage between Neutral and Ground in secondary side of the step down transformer (230 V to 110 V) with no load condition?
What is the difference between grid and off- grid system??
why does connected a indutor with mnsformeretering core of current transformer ?
Whether 3 phase induction motorwith 100 hp capacity , Amp 160 for which sensitive earth fault relay , type CTUM 15 can be used?
how we can set the IDMT relay.
if we look on phasor of the transformer vaoltage is 180 oppsite at primary and the secondary so to improve a power factor is secondary should kept negative to improve it primary side means is -.90 became +.90 at other side
what is efficient motors and how it is different from normal induction motors
In a power conditoining unit (inverter) of a solar plant when we measure the d.c. current fed by different strings of solar plates to inverter, the current in the negative wire is less almost by 1 ampere to the current in its positive wire say current in positive wire 5 A , then current in negative wire of the same string is 4 A. Since the current entering should be equal to current leaving then why the current is noticably less in negative wire.
What are the different types of hydro schemes?
What should be the length of transmission line so that we can see/obtain the full sine wave of voltage??
HOW WE CAN REDUCE THE CIRCUIT COMPLEX OF STAR-DELTA STARTER .BECAUSE NOW WE USING ONE TIMER RELAY & THREE CONTACTOR FOR MAIN,STAR & DELTA ?IF ANY IDEAS PLZ POST.THANK U
Merits & Demarits of Oil circuit & Air circuit breakers ?
Can you please explain creepage distance in detail, for a 6.6kV cable head what must the distance be and how do you determine it?
