Power Quality and Generator Sets


Standby Diesel Generating Sets are commonly employed by the industry to provide reliable power to the critical process machinery. Dynamic loads such as motors, welders, elevator, crusher etc are common in several industrial applications. Most of the motors for these applications use DC Drives or VFDs in order to realize the desired efficiency or precise control. The use of these elements produces harmonic distortion in the current and voltage waveforms, as well as lagging PF. Due to the dynamic (rapid variation) condition of the loads, increased kVA demand calls for large system/generator capacity. A faster response is essential to avoid a system collapse although most of the complete kVA capacity is only used to supply the peak reactive power demands. Harmonic currents produce high frequency flux change and cause heating in generator stator cores. Rotor losses also occur because harmonic currents in the stator will induce currents in the pole faces and windings. Higher magnetic core temperatures result in a higher winding temperature resulting in premature failures and tripping. For many such applications, harmonics add a third dimension to the classic power-factor triangle, thereby increasing the apparent power required to do a particular amount of work. This requires a change the way counter measures are considered.

This case study analyzes and demonstrates a cost effective harmonic mitigation and PF correction solution for an electrical system of a cable and wire manufacturing facility utilising large capacity DG sets.



Related POST

Power Quality Measurement Essential Instrument Toolbox for Facility Maintenance

The biggest challenge in improving Power Quality is perhaps finding and scoping its exact measure. M..

Read more

Power Quality Park: A futuristic solution for better Power Quality (PQ)

Have you ever tried to find out why there is always problem of tube light flickering? Why sometimes ..

Read more

E$$MEET - Pune on 24th October 2018 at ICC Trade Towers

APQI is happy to invite you for the second E$$MEET - Pune on 24th October 2018 at ICC Trade Towers. ..

Read more

India Copper Forum 2016

International Copper Association India (ICA India) hosted the 2nd edition of India Copper Forum (ICF..

Read more

A Laboratory For Power Quality Analysis

Among the different types of disturbances in voltage supply that the laboratory allows us to generat..

Read more

Power Quality Study in a Large Automobile Industry

Large corporates before setting a new plant in an industrial locality would like to be sure of power..

Read more

19th Webinar - India's Electric Mobility Ambitions - Can Power Quality issues lead to flat tyres?

30th October, 2020 (Friday) - India's speed of adopting Electric Vehicles can be defined but with on..

Read more

7th Webinar How to calculate Electric Losses due to poor PQ?

27th November, 2015 (Thursday) - In our increasingly digital economy, maintaining power quality i..

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.