Please Log in or Register for more.

What is the harmonic filter?

80 views

1 Answer

Answer :

It is being used to supress the input voltage distortion at input side of any electrical equipment. This distortion is created by other electrical loads like motor, drives etc nearby connected with same source. Harmonic filter to be designed for a range of harmonics or specific harmonics like 3rd harmonics  5th harmonics, 7th harmonics. 
Like 1 like

Please log in or register to answer this question.

Related Questions


The second harmonic distortion is defined as the A) Ratio of amplitude of second harmonic component in the output to that of the fundamental frequency B) Harmonic distortion due to only second harmonic component C) Sum of distortion of first and second harmonic components in the output 
Last Answer : The second harmonic distortion is defined as the Ratio of amplitude of second harmonic component in the output to that of the fundamental frequency

Show More

113 views 1 answer







To get minimum harmonic distortion in the output, a 3-Ф to 3-Ф cyclo-converter requires :  (A) 12 SCRs (B) 18 SCRs (C) 36 SCRs (D) 72 SCRs
Last Answer : To get minimum harmonic distortion in the output, a 3-Ф to 3-Ф cyclo-converter requires : 36 SCRs

Show More

93 views 1 answer







The time period of third harmonic of power supply frequency, in milliseconds, is (A) 20 (B) 3.33 (C) 6.66 (D) 60
Last Answer : The time period of third harmonic of power supply frequency, in milliseconds, is 6.66 

Show More

540 views 1 answer







The fractional-pitch used for eliminating 7th harmonic from the emf wave of an alternator is (A) 2/3 (B) 5/6 (C) 7/8 (D) 6/7
Last Answer : The fractional-pitch used for eliminating 7th harmonic from the emf wave of an alternator is 6/7

Show More

494 views 1 answer







Explain the sinusoidal harmonic reduction techniques for cylcoconverters.
Last Answer : sinusoidal

Show More

68 views 1 answer







What is harmonic in power quality?

Show More

59 views 0 answers







What do you mean by active filter? State its advantages over passive filter . Define pass band & stop band with respect to filter.
Last Answer : Active Filter: Active Filter is formed by using active element along with the passive components.  Advantages of Active filter over Passive filter: High value of pass band gain can be obtained. It is ... pass band.  Stop Band Filter: The frequency range which is attenuated is known as stop band.

Show More

124 views 1 answer







Which capacitors are suitable for DC filter circuits?
Last Answer : Electrolytic capacitors are suitable for DC filter circuits.

Show More

83 views 1 answer







write short notes on Low-pass filter.
Last Answer : low-pass filter (1) filter exhibiting frequency selective characteristic that allows low-frequency components of an input signal to pass from filter input to output unattenuated all high-frequency components are ... the bandwidth of the filter. A filter whose impulse response is a low-pass signal.

Show More

143 views 2 answers







derive an expression for the Ripple factor in a full wave rectifier using inductor filter

Show More

13 views 0 answers







Describe the operation of inductor filter with help of circuit diagram and waveforms.

Show More

5 views 0 answers







Obtain the Ripple factor of a full wave rectifier with shunt capacitor filter.

Show More

9 views 0 answers







Draw the circuit diagram for CLC or Pi filter and state it's ripple factor.

Show More

6 views 0 answers







Describe the operation of shunt capacitor filter with the help of circuit diagram and waveforms.

Show More

46 views 0 answers







Describe the operation of shunt capacitor filter with the help of circuit diagram and waveforms.

Show More

5 views 0 answers







Oil Filter Wrench
Last Answer : They say that there's a tool for every job, and using anything else other than it is essentially running the risk of either botching up the job or being less efficient with it. For changing ... driver. When you turn the driver counterclockwise, the gears cause the prongs to clench the filter body.

Show More

18 views 1 answer







Oil Filter Ratings
Last Answer : When grading oil filters, three main criteria must be considered: single-pass efficiency, multiple-pass efficiency, and the micron rating for particle pass-through. Single-Pass Efficiency Single- ... using an ISO approved particle counting is used to determine the real efficiency of oil filters.

Show More

14 views 1 answer







Oil Filter Manufacturers
Last Answer : Like most specialized equipments, an oil filter is only as good as its manufacturer. Over the years several oil filter manufacturers have made a name for themselves. Most of these did this by earning ... on dedicated vehicle or auto parts forums. Get opinion from them, as well as tips and advice.

Show More

6 views 1 answer







Oil Filter Cross Reference
Last Answer : For motorists and vehicle enthusiasts, getting replacement parts can pose a problem, especially if you live in a town where such parts are scarce. Sometimes, you'll have to use another part that looks like ... guide. It will save you trouble and money, and maybe, give you some knowledge on the side.

Show More

8 views 1 answer







Oil Filter Comparison
Last Answer : It is a common fact that not everything is created equal. In a particular category, one will always have an advantage over the another, whether it's by price, quality, or over-all performance. Even ... . Don't reply on the overall rating, but rather, focus on the characteristics that matter to you.

Show More

6 views 1 answer







Oil Filter Changing
Last Answer : It is recommended that you change your oil filter once every six months (or every 6000 miles, whichever of the two comes first). Failure to do so will have your engine run the risk of degradation and failure ... the filter mounts to the engine. Screw the new filter in place. Put in the new oil.

Show More

5 views 1 answer







How to Replace an Oil Filter
Last Answer : How to Replace an Oil Filter Oil changes may seem cheap, but if you calculate the cost of every oil change you've had at a gas station or a garage, you'll have big savings if you do it on your ... have to pay a few extra dollars for someone to perform a maintenance task that you can do on your own.

Show More

10 views 1 answer







How to Filter Water
Last Answer : How to Filter Water Drinking clean water is an important part of daily living. It helps keep us healthy and strong by ensuring that our water is clean. There are many pollutants out there affecting our water, ... water will come out of it. Be sure to have a receptacle for the water at the ready.

Show More

6 views 1 answer







How to Change a Furnace Filter ?
Last Answer : How to Change a Furnace Filter Every device in your home that has something to do with cooling, heating, or ventilation must be kept clean. Your home furnace filters help in improving the quality of the ... every 3-4 months. With these steps, you can easily replace the furnace filter in your home.

Show More

5 views 1 answer







need of rectifier and filter. 
Last Answer : Need of rectifier: Every electronics circuit needs a D.C. power source for its operation. The rectifier circuit is used to convert A.C. supply to unidirectional pulses .  Need of filter: A filter ... only the D.C. components to reach the load. So filter is used to provide ripple free output.

Show More

59 views 1 answer







What is the function of an electrical filter ?
Last Answer : Filter separates different components that are mixed together. Electrical filter can separate different frequency components. Electrical filters are the electrical circuits which are use to remove unwanted frequency components from the signal.

Show More

5.1k views 1 answer







State any four advantages of LC filter.
Last Answer : 1. The choke input (LC) filter has a high output D.C voltage. 2. It has no loading effect on the rectifier and power transformer.  3. The diode does not have to carry surge currents.  ... effect on the rectifier and power transformer.  7. It has better voltage regulation than that of π filter.

Show More

453 views 1 answer







Compare RC and LC filter.
Last Answer : RC filters  LC filters The RC filter is only useful for small load currents. The LC filters are useful for heavy load currents. More power dissipated in RC filter. Less power ... RC is fine for filtering low power signals. LC is fine for filtering high power signals.

Show More

144 views 1 answer







What is the convolution filter?

Show More

85 views 0 answers







Explain design constraint of filter inductor design.

Show More

58 views 0 answers







How do I forward emails from one sender to someone else in Gmail?
Last Answer : answer:In Gmail settings, click on the FILTERS tab and see how you can narrow it down to the ones you want to forward. Specifically you can filter on from / to / and words in the subject or body of the message.

Show More

1 view 1 answer







How would I do this in a video editing program, and which one do I need?
Last Answer : Is it for display on a Web page, or on some other media? What media?

Show More

2 views 1 answer







Can I cut charcoal filters to size?
Last Answer : Automiotive charcoal cansiters are filled with particles about 1mm across. Crack the case and they all fall out. Not sure what kind of filter you are talking about. There is a monolith type filter that looks ... . You can cut that shorter if you use a fine blade and don't care about smooth edges.

Show More

1 view 1 answer







Harmonic suppressor connected to an antenna. A. Low-pass filter B. High-pass filter C. M-derived filter D. Constant-K
Last Answer : A. Low-pass filter

Show More

23 views 1 answer







Harmonic suppressor connected to an antenna. A. High pass filter B. Low pass filter C. Tank circuit D. M-derived filter
Last Answer : B. Low pass filter

Show More

9 views 1 answer







___ has a series RC combination in one arm and a parallel RC combination in the adjoining arm and used as a notch filter in harmonic distortion analyzer.
Last Answer : wein bridge

Show More

3 views 1 answer







For a prototype low pass filter, the series and shunt elements are respectively _____.
Last Answer :  For a prototype low pass filter, the series and shunt elements are respectively inductive and capacitive.

Show More

2.7k views 1 answer







The ripple factor in an LC filter.   (A) Increases with the load current (B) Increases with the load resistance (C) Remains constant with the load current (D) Has the lowest value
Last Answer : The ripple factor in an LC filter. Has the lowest value

Show More

3.2k views 1 answer







The values of L and C for a low pass filter with cut off frequency of 2.5 KHz and operating with a terminated load resistance of 450 Ohm are given by  (a) 57.3 mH; 0.283 μF (b) 28.66 μH; 0.14 μF (c) 114.64 mH; 0.566 mF (d) 50.23 mH; 0.632 mF
Last Answer : The values of L and C for a low pass filter with cut off frequency of 2.5 KHz and operating with a terminated load resistance of 450 Ohm are given by 57.3 mH; 0.283 μF

Show More

416 views 1 answer







A band pass filter is that which
Last Answer : A band pass filter is that which passes signals between two frequency limits

Show More

60 views 1 answer







Low pass filter with cut off frequency of 100 kHz and high pass filter with cut off frequency of 50 kHz are connected in tandem, the resultant filter is Low pass filter with cut off frequency of 100 kHz ... kHz Band pass filter with pass band from 50 kHz to 100 kHz. None of the above.
Last Answer : Low pass filter with cut off frequency of 100 kHz and high pass filter with cut off frequency of 50 kHz are connected in tandem, the resultant filter is Band pass filter with pass band from 50 kHz to 100 kHz.

Show More

162 views 1 answer







Prior to sampling an anti-aliasing filter is used.
Last Answer : Prior to sampling an anti-aliasing filter is used. It is used to attenuate the high frequency component of the Signal 

Show More

53 views 1 answer







Rectification efficiency of a full wave rectifier without filter is nearly equals to:  (1) 51% (2) 61% (3) 71% (4) 81%
Last Answer : Rectification efficiency of a fullwave rectifier without filter is nearly equals to: 81%

Show More

383 views 1 answer







A twin T network is a filter of kind  A) BEF B) LPF C) HPF D) BPF

Show More

43 views 0 answers







Maximum phase distortion is encountered when using the filter approximation  A) Elliptic B) Butterworth C) Chebyshev I D) Inverse Chebyshev

Show More

59 views 0 answers







Angles in degrees of pole locations of 4th order Butterworth low pass filter approximation from either real axis are  A) +45,-45,+30,-30 B) +67.5,-67.5,+45,-45 C) +30,-30,+22.5,-22.5 D) +67.5,-67.5,+22.5,-22.5 

Show More

73 views 0 answers







What notes of the scale do you raise to get the harmonic and melodic minors?
Last Answer : answer:You are correct. There are three minor modes. natural minor, harmonic minor and melodic minor. Natural minor stays with the key signature of the relative major (e.g., A minor has the same ... F# and G# respectively, and revert back to the naturals when descending). (Edit for clarity)

Show More

1 view 1 answer







A particle in simple Harmonic Motion while passing through mean position will have a.Maximum kinetic energy and minimum potential energy b.Average kinetic energy and average potential energy c. ... energy d.Maximum kinetic energy and maximum e.Minimum kinetic energy and minimum potential energy
Last Answer : a. Maximum kinetic energy and minimum potential energy

Show More

1 view 1 answer







The periodic time of a body moving in Simple Harmonic Motion is a.Directly proportional to its angular velocity b.Directly proportional to the weight of the body c.Inversely proportional to ... d.Directly proportional to the momentum of swinging body e.Inversely proportional to the angular velocity
Last Answer : e. Inversely proportional to the angular velocity

Show More

1 view 1 answer







A body in Simple Harmonic Motion will attain maximum velocity when it passes through a.Point of 0.75 amplitude b.Extreme point of the oscillation of L.H.S. c.Point of half amplitude d.Extreme point of the oscillation at R.H.S. e.Mean position
Last Answer : e. Mean position

Show More

1 view 1 answer






Show More⇦ PreviousNext ⇨