TGNPDCL brings 1500 substations under real-time monitoring system

TGNPDCL has launched a modernisation project to bring 1500 substations under a real-time feeder monitoring system. The RTFMS, tested and installed across 16 circles, will help reduce power disruptions, improve supply quality, and ensure quicker response to faults

Hanamkonda: The TGNPDCL has embarked on a modernisation project aiming to bring over 1500 33KV substations under a real-time feeder monitoring system (RTFMS).

NPDCL CMD Karnati Varun Reddy said the RTFMS provides better and more reliable power supply to consumers and has already been installed in 16 circles. It was first tested experimentally in five substations connected to SCADA, and based on the feedback, 133 substations were later brought under the system. Calling it the most advanced technology in the country, tailored to suit NPDCL and selected after a study in six states, he said it enables accurate information in real time so that quick action could be taken, significantly reducing power disruptions by monitoring and responding to feeders.

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Varun Reddy said that new software has been installed for SCADA substations at the Warangal headquarters, and servers have been set up to meet software needs for the next 15 years. Real-time information about power outages and overload warnings is communicated to the field staff, besides collecting details such as power consumption, voltage levels, and others.

Speaking to Telangana Today, NPDCL General Manager (IT) Srinivas said that in the first phase, it is planned to install the RTFMS at 708 substations by the end of December. The system will be installed at the remaining substations in the second phase.

Further, the NPDCL is installing fault passage indicators (FPIs) on 33KV and 11KV long-distance lines. During a breakdown, the FPIs identify the location where the power disruption occurred and inform the control centre. SMS alerts will also be sent to the concerned field staff.

Similarly, a flashlight indication will be visible at that location through the FPI. Power supply can be restored quickly without the need to inspect the entire line. It is proposed to install FPIs at the field level at 2500 locations on 33KV and 11KV feeders.

An automatic meter reading (AMR) system has been designed to increase speed and transparency in the delivery of bills to HT electricity consumers. AMRs are being set up on an experimental basis for industries that consume heavy loads in the circle. Fluctuations in power supply can also be detected quickly through the system.