National Load Dispatch Center is situated at

Question

Examoogle · Accepted Answer

New Delhi

Explanation: The National Load Dispatch Centre (NLDC) is the apex body mandated to ensure integrated operation of the power system in India. It is situated in New Delhi and operates under the Power System Operation Corporation Ltd (POSOCO), now known as Grid Controller of India Limited.

Working Principle: The NLDC functions as the national control centre for real-time grid operations, monitoring inter-state and inter-regional power flow. It coordinates with Regional Load Dispatch Centres (RLDCs) to maintain grid frequency, ensure security of the national grid, and manage scheduling and dispatch functions across the Indian electricity market.

Key Formulas: $f = \frac{1}{T}$ — Relationship between grid frequency and period; $P_{flow} = \frac{V_1 V_2}{X} \sin(\delta)$ — Power flow equation monitored by NLDC

Key Points: NLDC is the apex body for grid management in India.; It is responsible for maintaining the grid frequency within the IEGC (Indian Electricity Grid Code) specified range.; It operates under the Ministry of Power, Government of India.; Coordinates with five Regional Load Dispatch Centres (RLDCs).

Advantages: Ensures grid stability and reliability; Facilitates inter-regional power transfer; Optimizes economic dispatch of power

Disadvantages: High complexity in managing multi-state interconnections; Susceptible to cyber-security threats on SCADA systems

Applications: Real-time load frequency control; Energy accounting and settlement; Grid disaster management

Additional Info: The NLDC was established in accordance with the Electricity Act, 2003.. It maintains the National Grid which is a synchronous interconnected grid running at a common frequency.. Options B and C represent regional headquarters or other power infrastructure locations but are not the apex national control center.

Answer: A is correct — The National Load Dispatch Centre (NLDC) is the apex body for integrated grid operation and is headquartered in New Delhi.

Exam Tip: Always distinguish between NLDC (National level, New Delhi) and RLDCs (Regional level like NRLDC, WRLDC, ERLDC, SRLDC, NERLDC) in competitive exams.

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