Course Description
Transmission
lines
and sub-stations play an important role in the electrical power systems and exercise a vital influence on the reliability of services. Transmission lines are in continuous operation, therefore it is important to have a good design with perfect construction. It should facilitate easy maintenance without or with minimum interruptions. They require high flexibility to cope up with already existing control systems,
available space
and limited downtime. In this course, participants will learn the constructional features, maintenance and routine testing of the transmission lines
Course Objectives
·
Understanding the basic theories of electrical transmission lines
·
Being familiar with the codes and standards of sub-stations and transmission lines
·
Learning the technical configurations, and design practices of sub-stations and transmission lines
·
being familiar with construction and maintenance operations for sub-stations and transmission lines
Who Should Attend?
·
Plant engineers
·
Electrical maintenance
·
Service technicians
·
Contractors
·
Energy auditors
·
Anyone who is invloved in planning, installing, and configuring electrical transmission lines
Program Schedule
DAY 1
·
Overview
·
Environmental effects
·
Electric field effects
·
Corona and magnetic field
·
Audible noise
·
Insulation of cables
·
Insulation design
·
Insulator types
·
Cable materials
·
Line types and characteristics
·
Insulator types and characteristics
·
Connectors and vibration dampers
DAY 2
·
Sag-tension calculations
·
Calculation of span
·
Conductor sagging
·
Conductor termination and clipping
·
Wind-induced motions
·
Tower grounding
·
Underground transmission and distribution
·
Various types of towers and functions
·
Force analysis on transmission line structures and tower foundations
·
Line protection relays
DAY 3
·
Failure modes of transmission lines
·
Repair and maintenance of transmission lines
·
Safe working procedures and safety rules
·
Site grading design
·
Substation grade types
·
Drainage and erosion protection
·
Foundations
·
Slab on grade
·
Design techniques
·
Bus configurations
·
Types of common configurations
DAY 4
·
Insulation and Insulation protection
·
Clearances
·
Surge arresters
·
Bus conductor
·
Electrical power bus
·
Rigid and hollow bus
·
Grounding and Need for grounding
·
Personal safety
DAY 5
·
Hazardous potentials during faults
·
Ground grid
·
Earth resistivity
·
Soil and electrode
·
Principle equipment
·
Transformers
·
Circuit breakers
·
Switches
·
Ancillary equipment
·
Substation auxiliary systems
