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Substation Design (Control, Protection & Facility Planning)

  • Schedule : Online
  • Who is this for: Professionals , Technicians

Duration: 5-8 Hours
Schedule: Online
Level: Beginner
Rs: 63,000

Course Overview

Objectives

  • To understand topics such as auxiliary power requirements and performing sizing calculations for the battery backup of essential DC power supply

  • To know the requirements for site preparation, foundations, structures, cable trenches and draining arrangements to effectively coordinate with design teams of related disciplines

  • To understand the designing of substation earthing to ensure the safety of personnel and equipment under all conditions, and designing appropriate protection against the direct and indirect effects of lightning strikes on substations and the incoming and outgoing overhead lines.

  • Earthing systems of switchyards
  • Examples of Switchyard earthing system design
  • Lightning protection of switchyards
  • Example of switchyard lightning & surge protection design
  • Protection design for substation 1
  • Examples / case studies of Mv substation protection
  • Protection design for substation 2
  • Examples / case studies of Hv substation protection
  • Example / case study of design  of Hv substation control & auxiliary system
  • Switchyard facility planning
  • Gas Insulated switchgear (Gis) as an alternative to outdoor switchyard

Topics covered are

  • Basics of functional and protective earthing
  • Touch and step voltages in substations

  • Design of earth grid-basic considerations in conductor sizing and mesh spacing

  • Safety mesh at operating points

  • Role of gravel layer in safety

  • Transferred voltage hazards and planning isolation of outgoing services to avoid transfer voltage

  • Based on the layout and data of a given HV switchyard:

  • Perform earthing calculations including sizing of earthing conductors

  • Calculate the earth mesh size for the switchyard

  • Develop a layout for the mesh and show the other connections required to avoid transferred voltages

  • Show the size of safety mesh to be provided and the operating points on the layout

  • Draw up the installation specification for the earthing system

  • Basics of lightning and hazards

  • Role of shield wire and lightning masts

  • Typical configurations of lightning protection of switchyards

  • Analysis of hazard using a cone of protection and rolling sphere methods

  • Selection of lightning arrestors-types, class and ratings

  • Design the lightning protection of a typical HV switchyard based on a given layout and analyze the adequacy of protection

  • Locate and select surge protection (lightning arrestors) of the above HV switchyard

  • Brief overview of protection

  • Over-current protection

  • Current transformers requirements for protection

  • Protection relays

  • IEDs and communication options

  • Protection coordination

  • Based on the data/SLD for a typical MV substation work out:

  • Suggested protective devices for over current and earth fault

  • Suggested settings

  • Select the specifications of CT and VT

  • Checking of CT burden

  • Protection coordination checking

  • Explore the substation automation system using IEDs provided for protection

  • Prepare an ordering specification

  • Protection of transformers

  • Busbar protection

  • Feeder protection

  • Equipment requirements for substation automation

  • PLCC applications in protection and communication

  • PLCC hardware and integrating them with the switchyard equipment

  • Using the data/SLD of a typical HV outdoor switchyard, work out the following:

  • Suggested protection schemes for all the feeders of the switchyard, its busbars, and transformers

  • Explore the use of PLCC for line protection and communication

  • Prepare an ordering specification for protection equipment

  • DC power requirements for switchyard equipment

  • DC equipment configuration and specifications

  • DC distribution for switchyard equipment

  • Battery calculations basis

  • Space planning and related facilities for a battery installation

  • AC auxiliary power for switchyard systems-loads which require AC power

  • Possible source options

  • AC auxiliary distribution for switchyard equipment and support systems

  • Control scheme of disconnectors and circuit breakers

  • Control interconnection approach

  • Use of optical fiber-based control scheme

  • Role and location of marshaling kiosks in different bays

  • Based on the data of typical substation with both HV and MV switchgear, work out the following:

  • DC auxiliary requirements

  • Battery sizing calculation

  • DC auxiliary equipment and their ratings

  • DC distribution SLD

  • Layout of DC equipment

  • AC auxiliary power requirement

  • Sources and rating

  • AC auxiliary system SLD

  • Layout of auxiliary switchgear

  • Interconnections of AC and DC auxiliary power and switchyard controls

  • Site preparation, leveling

  • Earth resistivity measurement and its role in design verification

  • Civil works such as equipment foundations, cable trenches, control building, storm drains, transformer oil collection pit

  • Structures and their design requirements

  • Substation fence and physical security

  • Surveillance

  • Planning water requirements and supply arrangement

  • Fire protection, lighting, and ventilation of control room and other equipment

  • HV gas-insulated substation-an alternative to outdoor HV switchyards

  • SF6 properties, advantages, and environmental impact

  • Typical substation configurations in SF6

  • Indoor/outdoor options

  • Gas safety considerations

  • Equipment for handling SF6

  • SF6 substation layout planning and earthing considerations

  • Cable terminations to SF6 equipment