Application Guide for Power Engineers - Part 1 - Earthing & Grounding of Electrical Systems

Synopsis

Sound earthing & grounding of the electrical installation is the fundamental requirement for safe and reliable operation. There is a lot of misconception among practicing engineers (both design and field) on this topic. Study of this application guide will bring clarity to the reader on this topic.

Earthing methods for different applications like EHV Switchyard, MV and LV systems and earthing application to special areas like Solar farms, GIS terminations, C&I (Control & Instrumentation) systems in power and industrial plants are covered. Remarks on mis-interpretation of IE rules are made.

The reader will understand why different grounding methods are adopted at different voltage levels. Relationship between Grounding and Transformer Ampere Turns Balance theory is clearly brought out which is the cornerstone of grounding exercise. Features of ungrounded and grounded systems are covered in detail including demystification of zig zag connection. Ready to use spread sheets for sizing of NGT/NGR are given.Supported by copious illustrations from field experience, fundamental concepts of grounding are explained by solving problems of gradually increasing complexity.

Various practices adopted for Neutral grounding of generator are described.Students will tremendously benefit by studying this guide as it combines theory with lot of practical examples. He/She will acquire the necessary skills upfront needed by industry.The design engineer or consultants will find the guide very useful to perform optimum design.

Origin of many nuisance tripping or power quality issues is poor earthing/grounding. The practicing and field engineers will be able to address many of the problems encountered at site due to faulty earthing and grounding.

About the Author

Dr. Rajamani obtained his Ph.D in Electrical Power Systems from IIT Bombay in 1975. From 1976 to 1996, he was with Tata Consulting Engineers, Mumbai. He was involved in design of electrical systems for industrial plants, thermal and nuclear power plants and Static VAR compensators.

From 1997 to 1998, he was with General Electric, Schenectady, USA working on dynamic stability simulations for integrated operations of gas turbines with steel plant loads. From 1999 to 2003, he was with Power System Consultants, Mumbai working on specialized protection problems and islanding. From 2004, he was with Reliance Infrastructure Ltd.

Presently he is with Adani Electricity Mumbai Ltd. He guides the electrical group working on distribution, transmission, switchyard and generation (power plant) projects. His other areas of interest are SCADA-DMS and Power Quality Monitoring.

He has conducted more than 150 hard core technical courses. His passion is now teaching and mentoring.

Dr Rajamani have been an ardent admirer of APQI platform as National Support Network (NSN) partner and Guide the application research activity.

Book Available On

Related POST

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

Common Mass Perception Around PQ. Affordable Common PQ Initiatives

Until now, food, clothing, shelter and receiving good health services were considered the basic requ..

Read more

Conference on Reliable and Quality Power on 30-31 May, 2019 at CBIP, New Delhi Highlights

The Conference was organized by Central Board of Irrigation & Power (CBIP), CIGRE India jointly with..

Read more

Apqi Hosted It's 18th National Seminar on Total Power Quality Management (Tpqm) At Madurai on 30th May (Friday) 2014

Asia Power Quality Initiative (APQI) hosted a full day seminar, 18th in its series, on Total Power Q..

Read more

Voltage Dip and Financial Impact

Power Quality issues can be broadly classified as voltage quality and current quality issues. Curren..

Read more

Reliability of Electrical Distribution System in Buildings

Electrical systems in high rising office building play an important role in day to day to functional..

Read more

14th Webinar - Business case for Loss Reduction using advanced Volt-VAR control in Indian grid

22nd February, 2018 (Thursday) - India's power grid system is massive and needs re-balancing to deal..

Read more

18th Webinar - kVAh Billing - the 4 things you must know to optimize energy bills

30th July, 2020(Thursday) - After implementation of the kVAh tariff structure by MSEDCL in April 202..

Read more

Dealing with the Covid-19 crisis-EPRI Resources brings the latest!

At APQI, along with our partner organisation Energy Power Research Institute (EPRI) we are committed..

Read more

Electrical Energy Efficiency

This publication shows how electrical equipment can be specified to optimise energy efficiency ..

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.