SUBSTATION GROUNDING SYSTEM
Fundamental theory:
The
sole purpose of substation grounding/earthing is to protect the equipment from
surges and lightning strikes and to protect the operating persons in the
substation. The substation earthing system is necessary for connecting neutral
points of transformers and generators to ground and also for connecting the non
current carrying metal parts such as structures, overhead shielding wires,
tanks, frames, etc to earth. Earthing ofsurge arresters is
through the earthing system. The function of substation earthin......
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