SPECIAL REPAIR OF TRANSFORMER AGAINST BER AT MIL STN BHUJ UNDER GE (ARMY) BHUJ

Supply, installation, testing and commisioning of step down transformer, outdoor type, HT 11 kV, 3-Phase, LT 0.433 kV, 50 Hz, 3-Phase, 4- Wire, oil-cooled, including of first fill of transformer oil of dielectric strength not less than 50 kV, electrolyte grade, copper wound in accordance with vector group DYN 11 with neutral brought out on LV side with tapping on HV side to vary secondary voltage upto +2.5% to -5% in steps of 2.5% with externally operated off-load type tap changing switch, locking arrengement complete with all standard fittings, all as specified and of capacity 63 KVA, minimum Level -2 mounted on a suitable platform as per manufactuer's recommendation with following technical features:[i] Rating: HV- 11 kV , LV- 433 V[ii] Winding connections- HV-Delta, LV-Star[iii] Tappings on HV: ± 2.5%, total; 7.5%, OFF circuit links.[iv] Insulation: Class 'H' [v] Applicable Standards: IS: 1180 (PART-1 2014) [vi] Termination: HV & LV cable box for easy connection.[vii] Duty: Distribution Transformer. [viii] Noise Level: Less than 69 dB at 1 m NOTES: [i] Contractor shall submit the technical drawing, constructional drawings, safety features drawing etc. for approval of accepting officer. [ii] The contractor shall intimate for factory inspection for routine tests as per IS & ANSIC 57.12.90 (latest revision) in the OEM factory in presence of representative nominated by the accepting officer before dispatch from factory, tests after installation shall also be carried by SEI for which GE will intimate through proper channel.[iii] Transformer shall be comprised of IS-1180 Pt-1 with latest amendment No.4.

Supply, installation, testing and commisioning of step down transformer, outdoor type, HT 11 kV, 3-Phase, LT 0.433 kV, 50 Hz, 3-Phase, 4- Wire, oil-cooled, including of first fill of transformer oil of dielectric strength not less than 50 kV, electrolyte grade, copper wound in accordance with vector group DYN 11 with neutral brought out on LV side with tapping on HV side to vary secondary voltage upto +2.5% to -5% in steps of 2.5% with externally operated off-load type tap changing switch, locking arrengement complete with all standard fittings, all as specified and of capacity 100 KVA, minimum Level -2 mounted on a suitable platform as per manufactuer's recommendation with following technical features:[i] Rating: HV- 11 kV , LV- 433 V[ii] Winding connections- HV-Delta, LV-Star[iii] Tappings on HV: ± 2.5%, total; 7.5%, OFF circuit links.[iv] Insulation: Class 'H' [v] Applicable Standards: IS: 1180 (PART-1 2014) [vi] Termination: HV & LV cable box for easy connection.[vii] Duty: Distribution Transformer. [viii] Noise Level: Less than 69 dB at 1 mNOTES: [i] Contractor shall submit the technical drawing, constructional drawings, safety features drawing etc. for approval of accepting officer. [ii] The contractor shall intimate for factory inspection for routine tests as per IS & ANSIC 57.12.90 (latest revision) in the OEM factory in presence of representative nominated by the accepting officer before dispatch from factory, tests after installation shall also be carried by SEI for which GE will intimate through proper channel.[iii] Transformer shall be comprised of IS-1180 Pt-1 with latest amendment No.4.

Supply, installation, testing and commisioning of step down transformer, outdoor type, HT 11 kV, 3-Phase, LT 0.433 kV, 50 Hz, 3-Phase, 4- Wire, oil-cooled, including of first fill of transformer oil of dielectric strength not less than 50 kV, electrolyte grade, copper wound in accordance with vector group DYN 11 with neutral brought out on LV side with tapping on HV side to vary secondary voltage upto +2.5% to -5% in steps of 2.5% with externally operated off-load type tap changing switch, locking arrengement complete with all standard fittings, all as specified and of capacity 250 KVA, minimum Level -2 mounted on a suitable platform as per manufactuer's recommendation with following technical features:[i] Rating: HV- 11 kV , LV- 433 V[ii] Winding connections- HV-Delta, LV-Star[iii] Tappings on HV: ± 2.5%, total; 7.5%, OFF circuit links.[iv] Insulation: Class 'H' [v] Applicable Standards: IS: 1180 (PART-1 2014) [vi] Termination: HV & LV cable box for easy connection.[vii] Duty: Distribution Transformer. [viii] Noise Level: Less than 69 dB at 1 m NOTES: [i] Contractor shall submit the technical drawing, constructional drawings, safety features drawing etc. for approval of accepting officer. [ii] The contractor shall intimate for factory inspection for routine tests as per IS & ANSIC 57.12.90 (latest revision) in the OEM factory in presence of representative nominated by the accepting officer before dispatch from factory, tests after installation shall also be carried by SEI for which GE will intimate through proper channel.[iii] Transformer shall be comprised of IS-1180 Pt-1 with latest amendment No.4.

M&L for shifting of any capacity pole or structuture mounted transformer from site to MES yard including disconncetion of existing HT, LT conncetion all as specfied and directed by Enginner-in-charge.

Material and labour for Cable jointing kit for 11 KV (Earthed) grade cable for outdoor termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 95 sq mm complete all as specified and as directed by Engineer-in-Charge

Supply and lay cable XLPE Insulated screened PVC bedded, galvanized steel strip or wire armored, electric power cables (heavy duty)11000 Volts grade with stranded aluminium conductor of size 95 Sqmm 3core and all as directed by Engineer-in-Charge.

Supply install testing,commissioning of CRI tested Copper earthing electrode of length 3 metres, 40mm dia and back fill compound of 50kgs ,and conductive gel to retain moisture should be filled layer wise and inter connceted by exothermic brazing & copper strip of size 32x6mm should be suppllied and fix upto testpoint protected by GI pipe of size 50mm dia up to test point including disconnection of old earth strip and fix to new chemical earthing, PCC earth pit of 450MMx450MM size and submmision of earth results and painting of Date of test , value obtain at site and all specified and as directed.

M&L for Earth continuity conductor or main earthing lead fixed to wall on batten or recess or chases or buried in ground or drawn in conduit/pipe or fixed to poles or any other indicated situation for loop earthing etc. as required 32X6mmmm copper strip with insulator all as specfied and directed.