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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