which is the most common harmonics 3rd,5th,7th affect the
systegm
Answer Posted / shaikh
3rd harmonics has common affects as compared to others. why? because of ferromagnetic loads produced by saturated iron in machines & transformers. Later, arcing load like lighting & electric arc furnaces. How to reduce? by increasing large fault level capacity to absorb more harmonic current.
Is This Answer Correct ? | 2 Yes | 0 No |
Post New Answer View All Answers
Is MEN and RCD related to each other ?? IF yes then how??
What is the use of oil in transformers?
What is difference between unity power factor wattmeter and upper power factor wattmeter? In short circuit test of transformer the wattmeter used is unity power factor type or upper power factor type wattmeter?
what is the maximum permissible limit value of leakage current and leakage counter reading to replace lightining arrester?
What is minimum permicible value of leackage current for LT Panle when applying voltage up to 3 KV for 5 Minuits?
Application Comparison between 22KV (UE)and 33KV (E) system. Are we allowed to use 33KV (E) cable in lieu of 22KV (UE) cable. What are the technical disadvantages.
How the over load setting for HT Motors calculated-provided in Numerical Relay
WHY THREE PHESE SYSTEM VOLTAGE APPLIED IN 440 VOLT
what happen if field of dc shunt motor opens? what is function of putting res. in parallel to one phase of 3 phase IM? the power supplied by 5A source in circuit is given by------Watt.
what is difference between 2 pole structure and 4 pole structure in transformer yard
Why 3 phase induction motor getting supply in body if one of it's phase is cut
what is the difference between 50 hz freq. and 60 hz freq.? which is better and economic in them ?
What are the roles and responsibilities of electrical engineer in cement plant
how to remover corona effect and hysteresis losses from contactor
(1)WHAT HAPPENS WHEN SUDDENLY LOAD GIVEN TO THE INDUCTION MOTOR ? (2)CAN WE MAKE WOOD AS MAGNET ? (3)WHAT IS THE VALUE OF MAGNETIC FLUX DENSITY IN TRANSFORMER ? (4)WHY WE ARE USING ELECTROMAGNETI NOT ELECTROSTATIC IN MACHINE ?