What is Harmonics & what are its efect & which harmonic is
dangerous
Answer Posted / bon4
IN SIMPLE WORDS :DISTURBANCE CAUSED IN THE SINUSOIDAL WAVE
FORM OF ALTERNATING CURRENT IS HARMONICS.
| Is This Answer Correct ? | 4 Yes | 2 No |
Post New Answer View All Answers
Whats the minimum value for I.R. that can be allowed for HT & LT alternators for operation?
I need bhel electrical test pattern & paper
i have 90kw motor.so i choose connect cable .please what is parameter checked so please give to formula
in Contactor opearation Why there is a difference in the values of the operate and release voltage in case AC supply
Anybody know how schematic diagram for reverse power relay? RPR for generator protection
What is the rating factor for copper cable ( Specific value according to the type of laying ) & the voltage drop?
what is protection class current transformer.
1.how many earth pits are required for 1000 k.w plant include substion , transformer ? 2. how many earth pits are required for 500kva generator.what is formula to calcute?
how we control automatic generator i'e with to supply (main supply and local generator) when the main supply was break to supply the local supply automatically to begin supplying power.I now this control circuit is the combination of contactor time delay contactor switch and overload relay .but my question is how we combine those component thank you
what is the practical application of full adder circuit?
what will happen if ac and dc supplies given
Sir, I have applied for the of Jr.engineer(Electrical & Electronics) & ASST. LOCO PILOT at ALL RRB BOARDS. please send me all RRB Boards solved papers in the year of 2001 tO till date. i requested send me the papers to my id as soon as possible (jet_0991@yahoo.com). (This is very urgent) Thank You,
what is x'mer ,isolation x'mer & yltra-isolation x'mer?????
If one tertiary phase i.e. R,Y or B is earthed of a loaded type tertiary delta connected (Without load)of a power auto transformer, what is its advantage/disadvantage?
hi can any body send me syllabus of rrb electrical section engg... and past pepar also of any board...