Substation Earthing for Low, Medium & High Voltage Systems | CPD Training By EA Technology

Published 25 Jan 2022

Substation Earthing for Low, Medium & High Voltage Systems

Substation Earthing

EA Technology – CPD Training

Cost: £1220

Course Duration: 3 Days

Course Location: Capenhurst, Chester

Dates: 17th-19th May 2022

CPD Information: 18 Hours

Sign Up Here: https://eatechnology.com/training/scheduled-courses/substation-courses/substation-earthing/

Day one

Introduction and Principles of Earthing in LV, MV and HV Systems

Role, principles and importance of earthing
Preventing electric shock in LV systems
Earth faults, fault voltages, EPR and voltage gradient in MV and HV systems
Impedance in earthing and bonding conductors
Important criteria for earthing assessment

LV Earth Systems and Earth Terminals

Earthing requirements for public LV systems
Earth terminals for supply points in public and private LV cable systems
Abnormal voltages on LV earth terminals
Requirement to separate HV and LV earth systems
Special LV earthing situations

Earth Fault Current and EPR Analysis

System earthing
Redial and non-radial systems
Simplified and rigorous fault current analysis
Data and accuracy for project and EPR assessments

Introduction to Earth Standards and Company Earthing Policies

The need for standards and company procedures
The voltages and environmental impact that occur during earth fault at a substation
Description of safety voltages, limit values and ways they are constrained
Developments in ENA S34 and 14-24

Introduction to Earthing Design

Earthing standards; how this guides design practice
Main design criteria
Introduction to earth resistance formulae
Comparison of ways to reduce the earth resistance

Day two

Design of Substation Earthing

Stages in the design of a LV distribution substation
Use of standard formulae to investigate design options and check compliance
Design of the local substation electrode system
Design of the earthing system for a HV substation
Exercise in developing the outline electrode design

Measurement Theory

Earth resistivity
Earth resistance

Practical Measurement Exercise

Group exercise undertaking soil resistivity and electrode resistance measurements

Analysis of Measurement Data

Delegates will use specialist software to gain a derived soil model for design purposes
Analysis of electrode resistance data to calculate the true resistance of the measured earthing system

Day three

Industrial Site Measurement Case Study

Undertaking measurements in difficult locations
Highlight the important issues
Explanation of procedures

Analysis of Earth Fault Current and EPR in more Complex Network Arrangements

Network calculation procedures
Mixed underground and overhead systems and isolated cable sections in overhead lines
Identifying points of worst case EPR

Example Case Studies and Calculations of EPR and risk effects in Industrial, generation and public HV and MV Systems

Generation and industrial sites connected to cable and overhead line systems
Separation of HV/MV and LV earth systems in high resistivity areas
LV installations in vicinity of HV equipment with high EPR

Course Review

Programme may be subject to amendment.

Why Should I Attend?

Enhance your knowledge of earthing principles and systems
Understand the legal and environmental framework and standards that apply to earthing systems
Develop your ability to specify earthing system design to current standards
Reduce the risk of critical system failure through enhanced design
Enhance your understanding of the role of earthing systems in safe working practices
Enhance your understanding of earthing measurement processes and the analysis of measurement data
Develop knowledge of managing earthing system design and maintenance projects

This course is delivered by leading specialists in earthing assessment, design and audit and draws on their extensive expertise in the field.

Click Here To Sign Up Today

Testimonials

‟Fascinating course due to the extensive knowledge of the presenter. Lots of myths debunked!! Enough knowledge attained to be able to challenge consultant designers and know the right questions to ask. Undoubtedly a good investment in time.”

Ade

15-17 June 2021

‟Definitely improved my technical knowledge of more up to date modern thinking & the standards used within the UK. Very informative, even though the formulas slightly taxing as I am 35 years since being in any educational, academic faculty. Presenters were very good & very approachable. Thanks.”

Paul

15-17 June 2021

‟Extremely informative, well presented and well organised. Thank you. ”

Tom

15-17 June 2021

‟Extremely informative.”

Jim

15-17 June 2021

‟Good course, expanded my knowledge considerably.”

Michael

15-17 June 2021

EA Technology

EA Technology - Substation Earthing

EA Technology are a global provider of end to end power engineering solutions and provide expert consultancy, innovative instruments, skills training, technical services and more.

William G. Higinbotham has been president of EA Technology LLC since 2013. His responsibilities involve general management of the company, including EA Technology activities in North and South America. William is also responsible for sales, service, support, and training on partial discharge instruments and condition-based asset management. He is the author or co-author of several industry papers.

Supplying Cable Termination, Jointing, Pull-in & Electrical Equipment up to 66kV

Thorne & Derrick distribute the most extensive range of MV HV Medium & High Voltage Cable Joints, Terminations & Connectors from manufacturers including 3M, Prysmian, Nexans Euromold, Elastimold, Pfisterer CONNEX and Shrink Polymer Systems.

Heat shrink, cold shrink, push-on and slip-over cable accessories enable the jointing, terminating and connection of 11kV-33kV and 66kV-132kV cables to oil, air or gas insulated switchgear, transformers, motors and overhead lines distributing electricity at MV HV.