Title - Solid state interlocking work completed

ALLAHABAD: The work of Solid State Interlocking has been completed at Achalda station in the Kanpur-Tundla section coming under North Central Railway. As a result, all indoor and outdoor signalling at the station have been replaced with the installation of Solid State Interlocking system.

In addition to this, 9.1 kms SSI (Solid State Interlocking) based automatic signalling has also been introduced in Achalda-Samhon section replacing conventional absolute block signalling. The commissioning was smoothly executed under the supervision of deputy chief signalling and telecommunications engineer IRPMU (Indian Railways Project Management Unit)/Kanpur Sarvesh Singh, and Chief Project Manager Puneet Chawla.

Achalda station panel interlocking was of 1978, more than 30 years old and was long overdue for replacement. The replacement of 34 years old signalling gears has enhanced safety and reliability in train operations.

The automatic signalling in the 9.1 Kms stretch between Achalda-Samhon has been provided with 7 semi-automatic signals in up direction and 6 semi-auto signals in the down direction, meaning thereby that 7 trains in up and 6 trains in down direction can now run in section Achalda-Samhon against 2 trains earlier.

Introduction of shunting facilities on main line starters have increased routes to 28 from 22 earlier.

The non-interlocked mid-section level corssing gates 14, 15 and 16 of Achalda-Samhon section have been interlocked using Electric Lifting barriers and facility of automatic warning and locking of gates from a distance of 4 Kms by approaching train, thereby enhancing safety and operational ease.

Automatic feature provided on main line signals will now enable the station master to run trains without any operation. All signalling operations now done by station master through computer by click of mouse.

The indications of all signalling gears under control of the station master, including that of the auto section, under control of Station are available on VDU ( Visual Display Unit)provided with assistant station master. This enables him to know of any eventualities in the section, which were otherwise not known. Further, all the signals have been provided with LED which provides high visibility, long life, less power consumption, possibility of 'no light' does not exist.

All the conventional power supply has been replaced by more reliable Integrated Power supply (IPS).