TNEB’s MANY FIRST
First cascading hydro-electric scheme – Kundah in the Nilgiris
This cascading hydro electric scheme consists of 5 power houses . It was developed with Canadian aid and was put into operation stage by stage from 1957 to 1964
First Barrage type Power House
Four Barrage type Power Houses each 2 x 15 MW were developed and commissioned during the year 1987-1989 across Cauvery river between Mettur and Bhavani. The Power Houses are located in the river bed itself
Kadamparai Pumped Storage Hydro Electric station ( 4 x100 MW)
The Kadamparai Pumped Storage Hydro Electric station (4 x100 MW) in Coimbatore District was commissioned in the year 1986 and is the first of its kind in the country to operate both in operation and pumping mode since 1987. In this Power House the off peak energy is utilized to pump water to the upper reservoir and during peak hours the Power House is put in generation mode.
First Gas Insulated Substation
In 1998 the first 230 KV Gas Insulated switchgear substation in the country was commissioned at Mylapore, Chennai. This was supplied and erected by M/s Merlin Gerin , France
Commissioning of 230 KV Transmission line
In 1960 TNEB commissioned 173 km long Kundah – salem 230 KV transmission which was the first 230 KV network in the country
SCADA (Supervisor Control and Data Acquisition System) of Chennai Distribution Control Centre is the first in the country and it remotely controls 95 distribution substations in Chennai City.
stressed Concrete poles
The technology of prestressed concrete was developed in the 1960s. TNEB was a pioneer in setting up a PSC pole yard at Samayanallur near Madurai in 1970.
Power line Carrier Communication (PLCC) in Grid Operation
TNEB is the pioneer in India in introducing PLCC system for its own communication requirements. PLCC system utilizes 66/110/230/400 KV transmission lines as the medium for communication. PLCC provides for limited channels for speech communication, low speed data communication (200 bps) and protection tripping. In 1960 PLCC sets and protection couplers of Brown Boveri Corporation , Switzerland make were put into service in 66 stations.
First state to achieve 100 % Village Electrification
Tamil Nadu is the first state in the country to achieve 100 % electrification of all villages as early as 1992
Power Engineers Hand Book
The Power Engineers Hand Book published by TNEB Engineers Association is well recognized among the practicing Electrical Engineers of the country. The Hand Book has its origin in the year 1947. The sixth enlarged version was released in 2002.