Generally in secondary distribution system, single phase two wire distribution system is generally followed. But for remote distribution systems in rural areas single phase ground return system has found economical. In this system earth is used as return conductor and only one phase wire or conductor is used. This system requires grounding rods deep into the soil at each consumer’s site in order to establish a sufficiently low impedance to the ground. This single phase earth return system has certain limitations like increase in earth potential and interference with telecommunication lines. Some of the advantages and disadvantages of single phase earth return systems are:
Advantages:
Disadvantages:
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