Introduction
The transmission line system of West Bengal is an integral part of the state’s power grid, which is responsible for providing an effective and efficient supply of electricity to both urban and rural localities. It is operated by the West Bengal State Electricity Transmission Company Limited (WBSETCL), which links the generating stations with the distribution companies and the end consumers. The report provides an overview
of the network structure, operation, issues, and potential.
Main Functions of Transmission Lines
1. Power Transfer
Primary function: To transfer electrical power from generating stations to distribution stations or substations.
Allows for efficient long-distance transmission of energy.
2. Voltage Regulation
Provides a fixed voltage level between sending and receiving points.
Maintains equipment and appliances supplied with the right voltage for normal functioning.
3. System Interconnection
Binds various segments of the power system, making sharing of loads and reliability possible.
Facilitates interconnectivity of the grid among regions or even nations.
4. Minimize Power Losses
It is designed to minimize losses (I²R losses) by employing high voltage levels, which permit lower current for the same power.
For minimizing resistive losses, effective design and conductors are utilized.
5. Maintain Power Quality
Assists in delivering clean, stable power with low distortion, voltage sags, and harmonics.
Eliminates the effect of faults or disturbances due to protection systems.
6. Enables Support Protection and Control
Incorporated with relays and circuit breakers to detect and eliminate faults.
Enables power system monitoring, control, and automation.
Power Map of West Bengal as per WBSETCL as on 31st March 2022
Installed capacity:
Current network and operational performance:
Financial highlights:
sources of income (in %)
Sources of Income (in %) for the year 2023-24
Sources of Income (in %) for the year 2022-23
Conclusion
West Bengal's transmission line system is an integral part of the state's power grid, providing a consistent supply of electricity to millions of consumers. Although the system has several strengths, including established interconnections and extensive coverage, it has weaknesses like aging infrastructure, high losses, and low integration of renewable energy sources. By adopting the latest technologies, increasing the network, and following strategic policies, West Bengal can upgrade its transmission grid to a more efficient, reliable, and sustainable grid that can cater to the energy requirements of the state in the future.