Consortium urges Tangedco not to measure harmonics until new norms come into force

Measuring harmonics at this juncture would create unnecessary anxiety and mental agony among the consumers, a letter from the consortium said

The Power Quality (PQ) Welfare Consortium has written to the Tangedco chairman, urging him to instruct the distribution regions to stop measurements of harmonics until the Tamil Nadu Electricity Regulatory Commission (TNERC) notifies the new regulations and measurement methodology.

Harmonics are generated by any load that draws power disproportionate to the voltage applied, and affects the quality of power supplied. Earlier, the norms on harmonic discharge were applicable for power systems above 33 KV. The TNERC has proposed an amendment to the regulations in the supply code stipulating harmonic limits, in order to comply with the regulations of the Central Electricity Authority (CEA), which will be applicable to all HT services from 11 KV and above.