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

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

Financing Ecosystem For PQ Equipment

With the advent of various on-going reforms in Power Distribution industry, electrical power quality..

Read more

E$$MEET - Bengaluru on 8th May 2019 at Regent Hall

India Energy Storage Alliance (IESA) is organizing 4th E$$MEET (Energy Storage Solutions Meet) at Re..

Read more

One Day Capacity Building Training Programme on Energy Efficiency & Conservation in Textile and Dyeing Industries

BEE, PEDA, MGSIPA, and PSCST together have organized a “One Day Capacity Building Training Program..

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

Harmomics: Causes and Effects

Today, nearly every piece of electrical equipment generates harmonic currents and voltages. This App..

Read more

kVAh Billing - Understanding the Benefits

13th August, 2021 (Friday) - This webinar will throw light on the 4 key issues which could be drivin..

Read more

15th Webinar - Impact of distributed Solar Net Metering on grid stability and preparations that DISCOMs can undertake

03rd April, 2018 (Tuesday) India's major dependence on imported fossil fuel for its energy needs is..

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

Good Practices in Power Quality to build sustainable energy systems

It is unlikely that a single solution will be effective or a site suffering from poor power quality...

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.