What exactly is meant by harmonics and harmonic current??
and what is skewing with regard to this??

Answer Posted / guest

integral multiplication of the fundamental frequency is
called as harmonics,the harmonic current has the same value
of with different frequencies like 3rd harmonics has
150hz,and 5th has 250hz

Is This Answer Correct ?    3 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

(1)The demand for electricity , the amount of renewable generation available, the amount of fossil fuel generation available and the cost of the fossil fuel generation are shown in table below period(hrs) demand(MW) renewable (MW) fossil- fuel(MW) cost of fossil fuel(MW) 00.00 - 01.00 2000 1800 2000 30 01.00 - 02.00 2300 2500 2000 30 02.00 - 03.00 2500 2700 2100 45 03.00 - 04.00 2900 3100 2100 50 04.00 - 05.00 2700 2600 2500 45 05.00 - 06.00 2400 2000 2700 50 06.00 - 07.00 2200 1800 2000 36 07.00 - 08.00 2100 1600 2000 36 Assuming that the renewable generation incurs zero cost, determine an optimal generation schedule(specifying the amount of renewable generation and fossil fuel generation used in each period, the cost for each period and the overall cost for 8 hours.)

1419


Refernce currents are to be generated using refernce cueernts how can this be done??

1570


A system absorbs 100 k J of heat and the increase in its internal energy is 100 kJ; the work done is

764


What is the principle of HIGH SPEED DIRECT DRIVE MOTOR ?

1514


How 48-relay (incomplete sequence) functions?

3546






HOE WE CAN IMPROOVE BY USE OF CAPACITOR

1514


Tell me all plants load factors i.e which plant operating on which load?

1552


sir, what is the importance of Fault MVA. how to calculate fault mva of 33kv substation connected by 6.5 km line(single circuit with equal spacing) with 110/11kv transformer in 110kv susbstation.the fault mva on 11 kv bus in 110kv susbstation is 208mva.

2484


What is the different types of cable & current capacity of cable

1444


What happens when two positively charged material is placed together?

696


Explain what is electric traction? Explain few advantages of electric traction system?

604


how to calculate slip ring induction motor stator and rotor currents??

1724


. What is Electrical Life & Mechanical Life of Circuit Breaker? 2. What is Electrial Life & Mechanical Life of Magnetic Contactor? 3. What is RCD, RCCB & RCBO? 4. What is the Between defferance of RCD, RCCB & RCBO?

2832


what happen as when voltage drop(or may decrease) ? in case of atomic base theory?

1542


Difference between shunt, PMG and AREP excitation. Which is the most reliable between PMG and AREP.

9007