Himachal Pradesh State Electricity Board Limited Tender

O/M of 132/33kV Substation Giri Nagar

Repair and overhauling of 132kV Isolators outdoor horizontal mounting centre rotatinng double break three phase gang operated 1600A Danke Control make. The scope of work includes rectification of problem of advance/delayed movement and locking mechanism of isolator blades for individual phases, providing and applying corrosion protection kit on male and female contacts after cleaning contact's surface and providing a layer of anti-static coating to prevent pitting, corrosion and carbon deposition due to arcing on contacts, providing and applying contact lubricating kit Cyclo/Sprayjet or equivalent make on gear mechanism after cleaning and lubricating of all the static and moving/rotational metal contacts with non-conductive spray to remove rust and reduce friction between moving parts of gear mechanism and finally testing for simultaneous operation of all three poles/blades and smooth operation of gear mechanism to the entire satisfaction of Engineer-in-charge for the following islators at 132/33kV Substation Giri Nagar:- 1. 132kV Solan-1st : Bus-A, Bus-B & Line Isolator = 3 No. 2. 132kV Solan-2nd : Bus-A, Bus-B & Line Isolator = 3 No. 3. 132kV Gondpur : Line Isolator = 1 No. 4. 132kV Bay of 220/132kV 100MVA Transformer-1 : Bus-A & Bus-B Isolators = 2 No. 5. 132kV Bay of 220/132kV 100MVA Transformer-2 : Bus-A & Bus-B Isolators = 2 No.

Replacement of damaged horizontal Isolator Coupling rod of 132 kV Bus-A Isolator and worn out driving mechanism worm of Solan-1st Circuit at 132/33kV Substation Giri Nagar