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Monday, March 3, 2014

Grid Sub-Stations

9:36 PM






This is an arrangement of electrical conductors, towers, protective equipment, transformers etc for the operation and maintenance of a power transmission network.

Most common equipments found in a GSS with few abbreviations are:

Power transformers

  • Circuit Breakers (CB)
  • Isolators
  • Current transformers (CT)
  • Potential transformers (PT)/ Capacitive voltage transformers (CVT)
  • Bus bars (BB)
  • Surge arrestors (SA)
  • Line trap (for PLC communication)
  • Earthing transformers
  • Auto-Recloser
  • Overhead earth wire
  • Underground earthing system

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