Internal inspection and technical assessment of GIS modules of failed 132KV GIS system installed at 132KV S/s, Bageshwar under OandM Division, PTCUL, Almora

Service charges for preparation of GIS for Inspections (a) 132 kV Feeder Bay Modules - 2 Nos (b) 132 kV Transformer Bay Modules - 2 Nos (c) 132 kV Bus Coupler Bay Modules - 1 Nos (d) 132 kV Bus Bars module consisting Bus PT - 2 Nos Including following works:- (i) Recover SF6 Gas from each compartments from above mentioned Bays using recovery plant of PTCUL. (ii) Store recovered gas from Gas Recovary Plants in empty SF6 cylinders (Empty Cylinders to be provided by PTCUL). (iii) Monitor alarms and block-out status of density monitors during recovery of SF6 Gas.

Internal Inspection of GIS Equipement of from following modules:- (a) 132 kV Feeder Bay Modules - 2 Nos (b) 132 kV Transformer Bay Modules - 2 Nos (c) 132 kV Bus Coupler Bay Modules - 1 Nos (d) 132 kV Bus Bars module consisting Bus PT - 2 Nos Including following work:- (i) Depressurize/Creating vaccum in each compartments of mentioned bays to atmospheric pressure. (ii) Dismantling of All GIS compartment of each bay for proper inspection. (iii) Carry out internal & external inspections of all bays for signs of displacement (>400mm observed during preliminary inspection), physical damages, or contamination. (iv) Inspection of all mechanical mechanism of Disconnector switch/ earth switch of Each bays. (v) Identify the faulty parts from each compartments of all Bays for restoration of the GIS. (vi) Record findings with photographs, inspection notes and submission in hard and soft copies. (vii) Inspection of Disiccant bags or filter. (viii) Cost of Special Tools and takels specified for GIS. (ix) All consumable items i.e Lint free paper, scrott bite, Clening agent (ethanol and Acitone), Cotton cloths etc for the internal inspections. (x) Connecting all GIS compartments of each bay after inspection as before and filling of Nitrogen in each compartment of all GIS bays. (Nitrogen for filling in SF6 compartmenrs will be provided by PTCUL). (xi) Checking of cable terminations and identification of deficiencies.

Operation Testing of GIS Equipement from following modules- (a) 132 kV Feeder Bay Modules - 2 Nos. (b) 132 kV Transformer Bay Modules - 2 Nos. (c) 132 kV Bus Coupler Bay Modules - 1 No. (d) 132 kV Bus Bars module consisting Bus PT - 2 Nos (e) Comprising of test mentioned below or any other test, as required for Inspection/Fault Findings:- (i) SF6 Dew-point test of each compartment. (ii) SF6 Gas Analysis of each compartment. (iii) CT/PT Ratio test of each bays. (iv) Partial Discharge Test. (v) O Ring Measurement. (vi) Circuit Breaker Test (Contact Resistance Measurement Test). (vii) Disconnector Switch/Earth Switches Mechnical Operation test. (viii) Submission of complete reports of all above activities and further activities to carry out rectify/ restore the faulty GIS equipment along with rectification timeline and guarentee period after restoration.

Flowmore Limited (BID ID -411483)