Project : 400 KV Bus Sectionalisation at NTPC - Ramagundam through AREVA - T & D Systems - Noida.

We are glad to inform you about our association with Installation, Testing & Commissioning of prestigious pilot project of 400 KV Bus Sectionalisation Project (making 2 buses to 4 ) comprises the following:

1. CVT's - 6 Nos. for Bifurcated bus - 3 & 4.

2. Earth Switch - 2 Nos.

3. Bus Bar Protection panel - PBDCB for the the bifurcated Bus 3 & 4.

4. Modification of existing Bus bar Protection Scheme Viz. LBB / 96 / CT Inputs / Tripping of CB.

5. Installation of Voltmeter, Frequency Meter, Voltage / Frequency Recorder, Indication Lamps, Fuse failure Relays in Dummy Panels.

6. Cutting & Removal of Aluminium bus bar of 4' Dia. for both the Bus - 1 & 2 to create Bus - 3 & 4 during shutdown.

7. Shifting of Jack Bus Connection - 2 Sets.

8. Laying & Termination of LT Power & Control Cables.

9. Earthing of Equipments.

This project will improve the flexibility and reliability of the system operation. We would like to highlight that the entire site execution done by us without involving AREVA - Pallavaram, Bangalore, Noida.

Sectionalisation of the bus is achieved by using the existing "Bus tie" circuit breaker of  "one and half breaker" scheme without introducing new circuit breaker, isolator, CT's etc.

The above said works were executed in a live Switchyard with limited Shutdown and having a power flow of 3000 MW.

M/s. NTPC appreciated our efforts in executing the project with dedicated team of Engineers and Technicians without any events of LTI.

The entire modified system was put into operation on 06/11/07 at 11:30 hrs by Mr.S.C.Pandy, GM, NTPC - Ramagundm STPS.