Improper Design of Harmonic Filter


Harmonics are one of major power quality concern and it is affecting consumers, electricity distribution company and transmission company. With increase in awareness among the various stakeholders about impact of poor power quality, all stakeholders are becoming concerned about reducing harmonics in the system. Distribution and transmission companies are trying to control harmonics through regulations, consumers are installing harmonic filters to mitigate harmonics. There are various kind of harmonic filters available which are simple line reactor to active harmonic filters and STATCOM’s. However, if the filter is not properly selected and designed, it can instead of mitigating harmonics, can amplify them.

Harmonic filters need to be selected and designed properly so that they should mitigate harmonics properly. In order to select a proper solution, care should be taken that the solution is technical and financial viable. Once a solution is selected, it should be designed taking in the load and well as network in consideration. If network parameters are not considered properly while designing a filter, instead of solving problem it can create other problem.

This case study presents a situation where one plant installed harmonic filter to filter harmonics but instead of reduction in harmonics, harmonics of entire grid were increased.



Related POST

Reactive Power Compensation - Understanding the positive and negative sides - An Expert's View

‘Reactive Power’ – is it for real or imaginary? is it unavoidable or essential? a problem or a solut..

Read more

Role of PQ Analyzers in improving Power Quality - an Expert's View

If you can't measure it, you can't manage it" - one of the most important quotes in management, cred..

Read more

Seminar on Electrical Utility Management

Issues like Electrical Safety , Power Quality, and Reliability are becoming a priority among Electri..

Read more

E$$MEET - Delhi NCR on 18th March 2019 at IIC

India Energy Storage Alliance (IESA) is organising 3rd E$$MEET (Energy Storage Solutions Meet) - Del..

Read more

Earthing Systems: Basic Constructional Aspects

This Application Note discusses practical design of earthing electrodes, including the calculation o..

Read more

Reactive compensation and voltage control at in-plant distribution system of a large Automobile industry

For a large Automobile industry, which commenced its initial operations three decades ago, has expan..

Read more

17th Webinar - Regulatory and Policy Landscape around PQ for more resilient grid in 21st Century

12th June, 2018(Tuesday) - India's 21st century electricity grid is becoming smarter with the help o..

Read more

2nd Webinar High ROI For Industries & Commercial Buildings From Investments In PQ Case Study

18th September, 2014 (Thursday) - Power quality (PQ) issues have significant economic consequences f..

Read more
Drop us a message

You're in the right place! Just drop us a message. How can we help?

Or see contact page
There seems to be some problem with validating your request. Please try again.
Thank You! Your message has been delivered.