Severe Voltage Harmonics Distortion in Distribution System - The Expert's View

Published On: Jun 08, 2018

When we talk about power quality, in today’s digital world, quality of electrical power is very important and deviation from it can impact both output or final productivity in negative way. In providing good quality power, Distribution Company’s role becomes very important to provide a sinusoidal voltage waveform to its consumers without any deviations from prescribed limits. Deviation in voltage quality, including severe voltage harmonics can have catastrophic effect not only on the clients but also on distribution company itself.

In general, voltage supplied by the distribution company is a sinusoidal waveform and if any deviations from power quality norms, are generally within prescribed limit. The network, which supplies power also plays important role in determining power quality. Non linear loads in a distribution system will be generating current harmonics. Depending on type of load whether UPS, lighting, VFD,etc harmonic generated by the loads will differ in their amplitude and order. Whenever harmonics are discussed, in general only current harmonics and their impact is addressed. However, current harmonics and voltage harmonics have distinguish characteristic and impact on the system. Current harmonics will cause higher loading on the distribution system due to addition of other frequency currents being added up without doing any productive work. Current harmonics also increases distribution losses (Copper losses) in the system.

pManifold, National Support Network (NSN) partner of APQI recently interviewed Mr. A.D. Thirumoorthy, Technical Advisor, India Wind Power Association an industry expert, to understand his uptake on ‘Severe Voltage Harmonics Distortion in Distribution System’. (The views here are personal and not to be associated with any company in any forms.)

Share This Post
Recent Posts

Dec 24, 2020

Power Quality Identified as a Key Lever to Improve Customer Satisfaction by Various Surveys

The role of electrical power is a defining one when it comes to development of agriculture or industries and ensuring qu...

Read more

Dec 05, 2020

Keeping High Speed, Metro Rail Safety and Performance on Track Good Power Quality is the Driver

Metro Rails are all set to take the center stage of mass urban transportation in India's fastest-growing cities. But the...

Read more

Nov 05, 2020

Preventing Fire In Covid-19 Hospitals A Power Quality Emergency?

A series of frequent and unfortunate fire incidents in COVID Hospitals is a cause of concern. The COVID emergency is not...

Read more

Oct 05, 2020

Keeping The Head High Of High Rise Buildings Good Power Quality

Vertical growth has always been an imperative compulsion in urbanization. The high-rise buildings may not reflect the ma...

Read more

Sep 05, 2020

The Evolution Of Power Quality Standards And Regulations - Journey So Far And The Future

The formulation of standards and regulations is a function of patient and pertinent efforts. Consensus building is the b...

Read more

Aug 25, 2020

Power Quality (PQ) And Electromagnetic Compatibility (EMC) Issues

Digitization is one of the drivers to improve efficiency, reliability and quality of the electrical network. But it's a ...

Read more

Aug 05, 2020

Power Quality (PQ) Issues In VFD

In the automated environment of the modern facilities and equipment, VFDs (also known as Variable Speed Drives VSDs or A...

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.