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Note for Electrical Power Transmission And Distribution - EPTD By IchAn Rk

  • Electrical Power Transmission And Distribution - EPTD
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Challenges faced by Power Sector

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Power Distribution Sector – Complexities • Distribution Sector considered as the weakest link in the entire power sector • Involves dealing with retail consumers with varied expectation and at the same time different paying capacity • Involves Huge network and requires network management of vast area • Theft, pilferages, network losses are maximum in this segment • Distribution is often seen as a social obligation of Government toward society rather than a commercial activity • Subsidised and often unmetered power adds to Distribution Utilities woes in terms of technical losses, billing, recovery and consumption habits

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Key Issues …….Contd. • Since the metering, billing, and collection at many places involves human intervention most of the times human error, intentional or non intentional can occur • Lack of infrastructure in many developing countries for database management system and at the same time absence of any data mining system • Lack of employee ownership • Internal Resistance to change

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AT& C Losses??? Aggregate Technical and Commercial Losses (AT & C Losses) is nothing but the sum total of technical loss, commercial losses and shortage due to nonrealisation of total billed amount: {(Total Energy Input LESS Energy Realised)/ Total Energy Input}*100 Where, Energy Realised is Sale of Energy * Collection Efficiency Distribution Losses (Technical + Commercial Losses) is nothing but the difference between energy supplied at the Input Points and Energy Billed to Consumers in percentage terms for a particular period: (Energy Input less Energy Billed to Consumers in kWh/ Energy Input in kWh)*100 Collection Efficiency is nothing but the ratio of revenue actually realized from consumers and energy amount billed to Consumers for a particular period, in percentage terms: (Revenue Realized Consumers)*100 from Consumers/Energy Amount Billed to

Lecture Notes