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MV SWITCHGEAR

MV SWITCHGEAR. STANDARDS. IEC 62271-200 High-voltage switchgear and controlgear – AC metal-enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV. Metal-enclosed Switchgears. Circuit Breaker Compartment. Busbar Compartment. Cable Compartment.

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MV SWITCHGEAR

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  1. MV SWITCHGEAR

  2. STANDARDS • IEC 62271-200 High-voltage switchgear and controlgear – AC metal-enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV

  3. Metal-enclosed Switchgears Circuit Breaker Compartment Busbar Compartment Cable Compartment LV Compartment

  4. Circuit Breaker Compartment

  5. Busbar Compartment • Main busbar system • Branch busbar connections • Through insulators for segregation of neighboring busbar compartments

  6. Cable Compartment • Earthing switch • Busbar branch connections • Power cables • Surge arresters • Instrument transformers (current transformers, voltage transformers)

  7. Low-Voltage Compartment • Microprocessor relay protection • Automation and SCADA elements • Auxiliary wiring (control, supply, signalling circuits) • Transit auxiliary wiring • Local control and signalling elements

  8. 4 LV compartment 2 Main busbar compartment 1 Circuit Breaker compartment 3 Cable compartment 5 Arc duct/channel 7 Voltage transformers 8 Earthing switch 6 Current transformers Internal Construction

  9. Internal Arc Protection Release of hot gases from each compartment in case of internal arc fault Rear Protection Front Protection Lateral Protection

  10. Single Line Diagram

  11. IF & OF – Incoming & Outgoing Feeder Withdrawable VT 6 Cables Fixed VT + 6cables

  12. BC – Bus Coupler Left/Right Versions

  13. BR – Bus Riser Version With No VT Truck Metering Version With VT Truck

  14. Rating

  15. Gas-Insulated Switchgear

  16. Panel Components

  17. Single Line Diagram IF & OF BC + BR

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