What is harmonics. How does it get generated and means to
arrest harmonics
Answer Posted / hazem el-henawy
Harmonics are integral multiples of some fundamental
frequency ,if the fundamental frequency is f, the harmonics
have frequencies 2f, 3f, 4f, . . . etc., when added
together, result in a distorted waveform, It generates due
to improper switching action, they disturbance the Grid and
equipments.
filters generates Harmonics of opposite polarity to system
Harmonics to nullify the effects,We use filters to get a
stable system.
| Is This Answer Correct ? | 4 Yes | 0 No |
Post New Answer View All Answers
How Can You Relate Power Engineering With Electrical Engineering?
what is a reactive power? what is the relation with power factor?
Please explain, how to test vector group of tranformer(Delta y1) . Thank
I am having a 42KW 3 phase electrical heating furnace, heating element is 80/20 nichrome material, my connections is made in such a way that 2 star connection compromising 2 coils per phase so totally 12 coils, shall if i use it unbalanced star condition (instead of 2 group of 3 phase or 1 group of 3 phase, connecting 4 phases of 5 phases) what will be the consequences and is it acceptable?
The electrical energy required to raise the tempreture of a given amount water is 200 kwh. If the heat losses are 20%, the energy required is?
What is the disadventage of gland earthing(power cable) if any. ?
What is difference between SMC supportg and Glass Fibre Reinforced Plastic Support.
EXPLAIN THE TERMS "INTEREST AND DEPRECIATION" AS APPLIED TO ECONOMICS OF POWER GENERATION.
How can I calculate the Mega watts required to run a plant having many electric motors and other electrical components.
How to calculate pitch, gauge of winding wire, and No. of turns for 30HP, 3 phase, 4 poles 50Hz, 380V induction motors
what is upper impedance and lower impedance of a distance relay
Define steady state error.
In DC generator, we use commutator, having no. of segments. Then how it is possible to get a half wave of voltage and current for half rotation of armature?
For refrigerators the motor current is raised beyond its rating on both conditions when the voltage of the system is more(say 270v) than the rated voltage(220v) as well as when the voltage of system is less(say 160v) than normal voltageof 220v, why explain?
what is difference between earthingpits,earthing grid & earthing mess?