SGP (Switch Gear & Protection)

Art of Conceiving SLD with preliminary data considering technical and commercial aspects

  • Identifying the voltage levels for the plant
  • Identifying the substation /switchgear and locations
  • Identifying transformer MVA, voltage ratio, %Z ratings
  • Detecting Earth fault in LV System
  • The basic calculation for short circuit powers.
  • Voltage dip calculation on starting of large motors.
  • Type of system grounding.
Course Outlet
1Identifying the Type of Switchgear requirement
  • Motors
  • Transformers
  • Capacitors
  • Generator
  • Cables
2Classification of Switchgear (As per IEC 62271-200)
  • Accessibility
  • Loss of Service continuity
  • Type of Barriers
  • Internal Arc Classification
3Operating Parameters of MV Switchgear
  • Rated Voltage
  • Impulse Voltage
  • Power Frequency Voltage
  • Short Time Withstand Current
  • Peak Withstand Current
  • Minimum Short Circuit Current
4Selection of Switchgear Components and its functions
  • Disconnector
  • Earthling Disconnector
  • Switch
  • Disconnector Switch
  • Circuit Breakers
  • Contactors
  • Fuse
  • Selection of Instrument Transformers for Protection and Metering
  • Current Transformers
  • Voltage Transformers
  • Low power Current Transformers
  • Accessibility and Service Continuity of switchgear
  • Identifying Dielectric Withstand and Protection
  • Graphical Symbols of Switchgear Components
5Substation Design
  • Basics of Substation Design
  • Substation Arrangement
  • Substation Type
  • Substation Equipment
  • Substation Layouts
  • Selection of Protection Philosophy
  • LV Motor feeders
  • LV Outgoing feeders
  • LV Transformer feeder
  • LV Incomer feeder
  • LV Bus coupler feeder
  • MV Motor feeders
  • MV Tie feeders
  • MV Transformer feeder
  • MV Incomer feeder
  • MV Bus coupler feeder
  • Auto Changeover Philosophy
  • Substation Communication Protocol
  • Identifying the needs of Intelligent Relays
  • ANSI Codes for Protection.
  • Sizing and selection of HV Power Capacitors.
  • Substation AC UPS and DC UPS sizing and selection.
6SLD Review and Interlocks for Switchgear
  • Review of Single Line Diagram and Protection Metering Diagrams.
  • Safety interlocks between switchgear.
  • Safety and operation consideration for control voltage distribution.
  • Safety and operation consideration in UPS and battery/battery charger system

Benefits of learning SGP (Switch Gear & Protection) at Solve Tech Training Institute

  • Our experienced professionals are instructing this course.
  • Solve Tech provides you the facility to schedule the classes according to your availability.
  • Following each session, you'll receive the course material for your own future reference.
  • You will receive an internationally recognised certification after completing the course.


Focused Training
Placement Assistance
Lab Support
Expert Trainers

Flexible Timing
Interview Prepration
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