Medium Voltage Switch Gear Complete Guide

Medium Voltage Switch Gear

You will learn about MV SWGR, I have explained from basic level to advance level.

Following Topis are covered

• Introduction of MV SWGR

Introduction to MV SWGR is divided in four compartments

• MV SWGR Cable Compartment
• MV SWGR CB Compartment
• MV SWGR Compartment
• MV SWGR Busbar Compartment
• Operation Maintenance of SWGR, Interlocking
• Msc Item of SWGR

MV SWGR in Detail

• MV SWGR CIRCUIT Breaker
• CB Mechanical Operation
• CB Stored Energy Principle
• CB IEC Rating
• •Rated voltage, Ur (kV)

  •Rated lightning impulse withstand rating, Up (kV)

  •Rated frequency, fr (Hz)

  •Rated current, Ir (A)

• •Rated short-time withstand current, Ik (kA)

  •Rated short circuit duration, tk (s)

  •Rated peak withstand current (kA)

  •Rated short circuit breaking capacity, Isc (kA)

  •Transient recovery voltage, TRV

  •Rated TRV (Uc) for circuit breakers intended for use on cable systems (Class S1)

  •Rated out-of-phase breaking current, Id (kA)

  •Rated capacitive switching currents

• MV SWGR CB Compartment in detail
• MV SWGR Componets
• MV SWGR Mimic
• CB Trolley
• CB Trip Coil
• CB Closing Coil
• CB Closing Spring
• CB Tripping Spring
• CB Latch
• CB Push button Operation
• CB AUX contacts
• CB Vacuum bottle
• CB Terminal Types
• CB Interrupter Unit
• CB Trip Free Mechanism
• Tulip, Jaw type Contact
• VCB Contact Shapes
• CB Mechanism
• Anti Pumping Relay
• Three Position Switch
• Name Plate in Detail
• Current Trasformer
• CT Name Plate
• CT IEC Standards
• Types of CT
• CT Primary & Secondary Data
• Installation drawing of CT
• CT Magnetization Curve , Saturation Region, Linear Region
• VT in detail
• Types of VT
• VT name plate
• VT IEC standards
• VT Primary & Secondary Data
• Cable Compartment
• Cable Sealing End
• Cable insulators
• Type of Cable Compartment ( For Transformer, Feeder, Ring Main)
• How Phase sequence is shown
• Selection of Cable Sealing End
• 1 Core & 3 Core Cable Sealing End
• HRC High Rupturing Capacity fuse assembly
• HRC on Mimic
• HRC Fuse Feature, Mode of operation
• HRC Fuse Selection
• Busbar Compartment
• Busbar Compartment IEC Rating
• How to identify phase sequence in busbar compartment
• VT,CT Connection at BB compartment
• LV Compartment
• Protection relays, auxiliary relays, control, alarm
• Voltage detection system
• For voltage detection according to IEC 61243-5 and VDE 0682 Part 415 with the following

  voltage detecting systems:

  • LRM plug-in sockets

  • VOIS+, VOIS R+ (option)

  • CAPDIS -S1/-S2+ (option)

  • WEGA 1.2/2.2 (option)

• Accessories of MV SWGR
• Interlocking of MV SWGR

In an electric power system, switchgear is composed of electrical disconnect switches, fuses or circuit breakers used to control, protect and isolate electrical equipment. Switchgear is used both to de-energize equipment to allow work to be done and to clear faults downstream