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EY1-SP Electrical Substation and Switchyard Design for Main Equipment

  • Duration:
  • Investment: US$ 299
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Description

Electrical equipment maintenance and testing is one of the most important aspects of the substation system. Without protection, any system could fail. So it is imperative that safety and protection be given utmost importance to avoid catastrophes. For fault locating to be efficient and accurate technical staff must have expert knowledge to keep employees safe while working on or around high voltage power generation, transmission and distribution systems and equipment.
This course is designed to help students to understand the substation design and safety procedures to provide a safe environment for substation personnel.   

 

WHO SHOULD COMPLETE THIS COURSE

  • Electrical Technicians
  • Substation design engineers
  • Distribution planning engineers
  • Substation network management engineers
  • Substation maintenance and construction engineers & technologists
  • Engineering Managers
  • Risk Assessors
  • Design Engineers
  • Manufacturers of PPE & Safety Equipment
  • Safety Facilitators
  • Instrumentation & Control Technicians and Engineers
  • Process Safety and Loss Prevention Managers
  • OHS/Training Managers

 

COURSE OUTLINE

INTRODUCTION TO SUBSTATION

  • Definition
  • Role of substations in a power network
  • Types of substations

 

DESIGN CONSIDERATIONS OF A SUBSTATION

  • Overview
  • Other classifications of substation
  • Need for a new substation
  • Considerations for locating substations
  • Design factors

 

SUBSTATION CONFIGURATIONS

  • Common configurations
  • Single bus with sectionaliser
  • Single main bus with transfer bus scheme
  • Dual main and transfer bus

 

BREAKER AND HALF SCHEME

  • Introduction
  • Double breaker and double bus scheme
  • Main equipment

 

DESIGN PROJECT

  • Background information
  • Data
  • Substation envisaged
  • Design report format
  • Design output

 

SYSTEM STUDIES FOR SUBSTATION DESIGN

  • Importance of system studies
  • Power system model for studies
  • Load flow study    
  • Power flow in simple radial systems
  • Applications of load flow study

 

INTRODUCTION TO FAULT

  • Fault- Definition
  • Reasons for fault
  • Types and effects of fault
  • Human safety
  • Limiting the damaging effects of a fault

 

LIMITING EARTH FAULT CURRENT

  • Proper design of system and equipment
  • Magnitude of faults
  • Calculating system impedance
  • Impedance ‘per unit value’
  • Per unit impedance of a transformer
  • Reduction of impedance diagram

 

CONCEPT OF BASE KVA

  • Overview
  • Line impedance
  • Conversion examples- Lines and cables
  • Importance of asymmetrical fault behaviour

 

STABILITY STUDIES

  • Short circuit study
  • Harmonic flow
  • Voltage profile and reactive power compensation
  • Other calculations
  • System study specifications

 

SUBSTATION EQUIPMENT AND RATINGS

  • Choosing main (primary) equipment
  • Power transformers (IEC 60076)
  • Basic data
  • Design options
  • Single vs three phase

 

WINDING CONNECTIONS            

  • Introduction
  • Tertiary winding: Current flow
  • Terminal arrangements: MV
  • Terminal arrangements: HV

 

INTRODUCTION TO DISCONNECTORS AND CIRCUIT BREAKERS (IEC 62271)    

  • Overview
  • Types of disconnectors
  • Functions and types of circuit breakers
  • Ratings and Options for the construction of circuit breakers
  • Live tank and dead tank- Basics
  • Comparison of HV CB mechanism

 

DISCONNECTING CIRCUIT BREAKER (DCB)        

  • Basics of DCB
  • DCB with earthing mechanism
  • Disconnecting link on the bus bars
  • CB interlocking scheme

 

INSTRUMENT TRANSFORMERS            

  • Functions of instrument transformers
  • Classification of voltage transformers
  • Accuracy of VT’s
  • Current transformer types
  • CT magnetisation curve characteristics
  • Optical CT/VT

 

BASICS OF LIGHTNING ARRESTORS     

  • Types of surge protection devices
  • Metal oxide varistors (MOV)
  • Typical arrestor specification

 

LAYOUT OF SUBSTATION              

  • Electrical and Safety clearances- Definitions
  • Bus bars and connections
  • Control interconnections

 

SPECIFICATION OF FAULT LIMITING REACTORS

  • Need for Fault limiting reactors
  • Construction of fault limiting reactors
  • Possible locations for current limiting reactors
  • Other uses of reactors
  • Ferranti effect in long lines
  • Current limiting reactor specification

 

POWER FACTOR COMPENSATION            

  • Overview
  • Shunt and series VAr compensation
  • Vector relationship between power components
  • Calculation of VAr requirement
  • Power factor correction
  • Capacitor placement in a distribution feeder

 

REQUIREMENTS OF CAPACITOR BANK – OUTDOOR                

  • Basic specifications of capacitor bank
  • Design considerations
  • Principle of Static VAR compensators (SVC)
  • Main applications

 

INTRODUCTION TO HARMONICS            

  • Definition
  • Linear and non-linear load
  • Harmonic components- SMPS
  • Harmonic characteristics

 

HARMONIC CONTROL METHODS        

  • Solutions for neutral overloading
  • Overheating of transformers
  • Capacitor failures due to harmonics
  • Causes of skin effect
  • Electromagnetic Interference (EMI)
  • Limits of harmonics in a power system
  • Analysis of harmonic components
  • Harmonic control methods

 

RECTIFIER CONFIGURATION

  • Overview
  • 6-Pulse and 12-Pulse rectifier configuration
  • Passive filters for harmonic control
  • OUTDOOR HARMONIC FILTER INSTALLATION
  • Principle of active filter
  • Isolation by transformer delta winding
  • Integration with PF compensation

 

OVERVIEW OF MEDIUM VOLTAGE (MV) METAL ENCLOSED SUBSTATION EQUIPMENT

  • Application of medium voltage in distribution networks
  • Definition of Switchgear
  • Switchgear functions
  • Applicable IEC standards
  • Advantages of Outdoor open type and Indoor metal enclosed type

 

MV SWITCHGEAR COMPARTMENTS        

  • Switchgear configurations
  • Panel- Single and double bus
  • Ring main unit- Schneider RN2C
  • Properties of insulation

 

UTILISATION OF CIRCUIT BREAKER            

  • Need for circuit breaker
  • Types of circuit breaker
  • Principle of SF6 circuit breaker
  • Vacuum CB interrupter

 

CIRCUIT BREAKER/SWITCHGEAR RATINGS: INDOOR EQUIPMENT        

  • Requirements for indoor switchgear equipment
  • Special service conditions
  • Rated Voltage and Insulation level
  • Rated short time withstand current
  • Symmetrical and Asymmetrical rating
  • Disconnecting switches and Vacuum contactors
  • Control, protection and auxiliary power
  • CTs and VTs for indoor MV switchgear

 

CURRENT AND VOLTAGE TRANSFORMERS

  • Protection elements
  • Cabling in substations
  • Ventilation and fire safety
  • Layout options and Work clearances
  • Arc and fire safety in MV installations

 

MV SUBSTATION DESIGN AND SPECIFICATIONS

  • Sizing of main equipment of MV substations
  • Supply to MV substations
  • Layout of typical MV indoor substation
  • Network connections
  • Substation sizing– Main equipment
  • HV incoming supply

 

INTRODUCTION TO SINGLE LINE DIAGRAM            

  • Dimensions
  • Panel space requirements and arrangement
  • Safe ingress

 

OPERATING REQUIREMENTS OF SUBSTATION            

  • Transformer placement and cell
  • Fire containment measures
  • Maintenance of transformers

 

TRANSFORMER FIRE PROTECTION            

  • Passive and active measures
  • Transformer fire hazards
  • Battery room requirements and planning
  • Sources of auxiliary supply
  • Earthing and separate auxiliary transformer
  • Diesel generators (DG) back up for auxiliary power
  • Cable as a part of building planning

 

 

Investment

Plan Name Investment
Unlimited Access for 2 Years: US$ 299

Instructor

Govindaraghavan Vijayaraghavan

B.E. (Hons) Electrical

Used EY Cert 2014

 

Vijay’s experience is primarily in the field of industrial power distribution systems. He has contributed to the design, engineering, commissioning and operation of HV distribution equipment in steel industry for over 15 years which includes outdoor switchyards, indoor MV switchgear and distribution substations. He has also been trained in the operation of large captive power plants forming part of integrated steel plant systems. He has worked as the head of testing of protection and HV equipment in a large 4 MTPA integrated steel plant.

 

He has also served as the head of the electrical and instrumentation group for over 2 decades in a firm of consulting engineers handling several large international projects, including the power distribution systems of large metallurgical industries and the integrated power generation plants, the captive thermal power generation unit of an Aluminium smelting and refining complex and Tonnage oxygen plants associated with steel manufacturing, among several others.

 

Vijay has been associated with IDC/EIT for over 10 years and has designed and presented training courses on various topics related to electrical power engineering. Vijay is a popular instructor his students often seek his advice in analysing and solving technical problems at work, sometimes long after the completion of the course itself.

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