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June 1, 2024

Delhi Discoms Employ Advanced Tech Transformers to Maintain Uninterrupted Power Supply

Amidst a severe heatwave, the power distribution companies (discoms) in Delhi are leveraging advanced technology transformers to ensure an uninterrupted electricity supply. With peak demand hovering around 8,000 MW, these transformers are crucial in maintaining the stability of the power grid.

The BSES discoms, including BSES Rajdhani Power Limited (BRPL) and BSES Yamuna Power Limited (BYPL), which serve most parts of Delhi except for North Delhi, have incorporated transformers capable of operating at temperatures 40 degrees Celsius above the ambient temperature. A BSES spokesperson highlighted, “This essentially means the transformers can function efficiently even if the area temperature hits 48 degrees Celsius, allowing the transformers to operate up to 88 degrees Celsius without external cooling aids.”

This modern design eliminates the need for external cooling mechanisms such as fans, which are often required to prevent transformers from overheating and potentially causing power outages. However, in cases where temperatures exceed 88 degrees Celsius, external cooling fans can be employed to maintain safe operating temperatures.

In North Delhi, Tata Power Delhi Distribution Limited (TPDDL) manages the power supply through 88 grid substations equipped with 222 transformers. These transformers are monitored and controlled remotely via a Supervisory Control and Data Acquisition (SCADA) system. A TPDDL spokesperson emphasized, “Given the extreme temperatures this summer, ensuring the optimal performance of our power transformers is vital for their effective functioning.”

Delhi recently recorded its highest-ever peak power demand of 8,302 MW, with temperatures soaring to 46.8 degrees Celsius, the highest in 79 years. The following day, the maximum temperature was 45.6 degrees Celsius, with a peak demand of 8,091 MW.

TPDDL’s transformers are meticulously engineered to withstand Delhi’s harsh environmental conditions across different seasons. They feature an “Oil Natural Air Natural” (ONAN) and “Oil Natural Air Forced” (ONAF) cooling system, which activates cooling fans or oil pumps based on the transformers’ oil and winding temperatures. This automatic system ensures that temperatures remain within permissible limits during the intense summer heat.

Remote monitoring via the SCADA system allows TPDDL to closely track the oil and winding temperature indicators, ensuring transformers remain in optimal condition. The system also includes industrial blowers, strategic load shifting, and sharing between transformers to mitigate overheating risks.

Online monitoring techniques such as thermos-scanning and ultrasonic testing further enhance the reliability of these transformers. This comprehensive approach ensures that the transformers remain in peak condition, even during periods of extreme demand.

In conclusion, the advanced technology transformers used by Delhi’s discoms are playing a critical role in maintaining an uninterrupted power supply during one of the city’s most challenging summers. The innovative cooling systems and remote monitoring capabilities exemplify how modern technology is essential in managing and sustaining the power infrastructure in urban environments.

Read more latest news on R9 News

Jhumpa Lahiri

Jhumpa Lahiri

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