Voltage Dip and Financial Impact

ABSTRACT

Power Quality issues can be broadly classified as voltage quality and current quality issues. Current quality issues are mainly caused by consumers themselves, voltage quality issues could be either from the grid or consumer. One of the major voltage quality issue is voltage dip or voltage sag. As voltage dip is a momentary phenomenon, it is hard to monitor them unless there are sophisticated equipments installed for continous monitoring. A consumer can have a control over its load switching that could cause voltage dips, however he will not have any control over voltage dips coming from grid.

By design a transformer is the most efficient and long lasting electrical machine. Efficency of power transformer could be as high as 99.75% where as for distribution transformer, design efficiency could be in the range of 98.5% to 99.5%. A transformer is designed to have a life of 20 to 25 years. However, undesirable operating conditions reduces operating life of transformer to 5-6 years and efficiency could drop to 95% or even less

A transformer will work satisfactorily when it is feeding to the loads for which it is designed for and balanced loads. However in actual practice, transformers with a K factor of 1 is feeding increasingly non linear and un balanced loads. These factors cause increased operating temperature of transformer, reduced efficiency and reduced life of transformer. In cases of extreme third harmonic pollution the neutral points are often the victim resulting in burn out and failure.

This case study depicts how a distribution company addressed above issues thus improving life, reliability and efficiency of the transformer.

DOWNLOAD RESOURCES

CS56-AUTOMOBILE-2019-Voltage-Dip-and-Financial-Consequences.pdf

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

Conventional And Modern Methods To Mitigate Harmonics

The world is moving towards digital era where its sustainability depends upon the electrical and dig..

Read more

Interactive Workshop on Power Quality and Harmonics at Pune

APQI and MSEDCL jointly hosted a full day interactive workshop on Harmonics and Power Quality at Pun..

Read more

2nd India Backup Power Executive Summit and Awards Banquet 2013

Frost & Sullivan's 2nd India Backup Power Executive Summit and Awards Banquet 2013 aimed to bring un..

Read more

Improving Reliability in a Data Centre

A sophisticated, state-of-the-art data center calls for a highly secured physical environment in add..

Read more

Ensuring safety beneath the surface - A deeper role for Power Cables in Metro Rail Infrastructure

Safe and reliable electrical power is at the core of keeping Metro Rails running. And Power Cables h..

Read more

10th Webinar Assessing Transformer Loss in Harmonics High Environment

17th November, 2016 (Thursday) - Transformers are one of the most important and high CAPEX assets..

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.