Well researched and documented real-industry live case studies covering a wide rage of Industries and PQ issues from Asia on harmonic distortions, under-voltage and over-voltage, voltage dips, sags, flicker/sag/swell, transients, earthing, reactive compensation and so on , are available here for downloading. The case studies offer detailed analysis of the PQ issues ad solutions including economic analysis to enable users and top managements to readily go in for implementable economical solutions.
Conventional definition of electrical engineering terminology, which were as per linear load scenario are changing now with more non linear loads being used by electricity consumers. Conventional terms like resistance, which was measured as DC resistance and normalized for 50 Hz needs to be re-looked again as in the cables, apart from fundamental current of 50Hz, other frequencies of currents are also present with considerable amplitude.
This case study depicts a utility distribution system which was installed decades back to cater to the need of a village. The village grew up with industrialization and became a hub of textile industries. Within a radius of few kilometres, number of textile spinning mills came and started their operations.
TANGEDCO Distribution Utility for Tamil Nadu State has given a regulation regarding Harmonic Mitigation, under direction of tariff order by Tamil Nadu Electricity Regulatory Commission (TNERC), wherein any HT consumer/generator need to meet the specified Harmonic limits as per norms stipulated in CEA regulation on grid code.
Telecom is one of the fastest-growing industries in India. Today India stands as the second-largest telecommunications market in the world. The mobile phone industry in India would contribute US$ 400 billion in terms of gross domestic product (GDP) of the country in 2014.
The case study focuses on power quality issues present in a diagnostic center, importance of detailed power quality study to identify root cause of issues. In today's health care facilities, electromagnetic environment has changed dramatically. Presence of electromagnetic equipments is common in diagnostic and monitoring of patients.
Today’s Plant Engineers are finding a Power Quality (PQ) problem, Harmonic Distortion of fundamental wave shape, that’s becoming increasingly apparent. The problem has arisen because of increasing use of Non Linear Load (NLL) like DC drives, Variable Speed AC drives, UPS, electronic controls etc. Harmonics are as old a phenomenon as the introduction of AC System.
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