SPECIAL REPAIR OF BER TFR/VCB AND CONNECTED WK AND SPL REPAIR TO TRANSFORMER AT MIL STN BHUJ UNDER GE (A) 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 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.

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.

Supplying, Installation, Testing & Commissioning indoor type VCB Panel shall be constructed from CRCA/ Aluminium Zinc coated steel sheet of 2 mm thickness, floor mounted metal enclosed, 11 KV VCB panel suitable to integrate with existing panel at site with 1 no. VCB (Incoming Type), totally enclosed and fully interlocked, horizontal draw out, horizontal isolation type breaker as per IEC-62271-1,100,200, as amended up to date and additional Specifications, having capacities as mentioned below, single break, trip free mechanism, manually and motorised charged and manually and motorised closing breaker suitable for use on 11 KV, 3 phase, 50 Hz A.C. supply with short circuit fault level of 26.3kA for 3 sec , Panel shall be full internal arc tested i.e. in all three chambers at 26.3kA for 1 sec for safety purpose (AFLR). compete with self contained, fully interlocked, rack in and rack out mechanism, air insulated HT sleeved (PVC sleeve is not accepted) self supported Copper bus bars of 800 amps capacity, breaker featured with mechanical ON/ OFF indicator with hand trip coil and auxiliary switch of 4 NO+4NC and equipped with following switchgears and accessories. Make of Vacuum interrupter, circuit breaker, Panel, relays & meters shall be same. Cable compartment suitable for 2RX3C x 240 sq. mm XLPE 11 KV cable (Cable entry from bottom) end termination with heat shrinkable jointing material etc as reqd. There must be a viewing window on VCB chamber door and same must be as per Internal arc test report. The basic insulation level of entire panel shall be 28KV(RMS) / 75KV(Peak). Note 1 : M&L for alternation existing VCB busbar system as per site requirement for conncetion of new VCB including copper busbar, insulator and other connected accessories are included in quoted rate. Note 2 :Only OEM Factory made panels are acceptable. System Integrator panels are not acceptable. Note 3 : For connection with existing VCB Panel all item shall be included in quoted rates(ref Note.1 ) and the rate of adapter panel ,if required are also included in the quoted rates and nothing extra will be paid on this account. Contractors are requested to site visit before quote the tender.

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.in existing duct system)

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 95Sqmm 3core and all as directed complete all as specified and as directed

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. Note :- (i) Earthing shall be tested as specified in casul 19.137 of SSP PART - I 2009 , to the entire satisfication of Engr-in-Charge. (ii) On teting after complataion of earthing , if the desired earth resistance is not obatined the earthing wiil be re done by the contractor at his on risk and cost to the entire satisfaction of the Engr - in - charge.

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.

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.

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 160 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 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. Note :- (i) Earthing shall be tested as specified in casul 19.137 of SSP PART - I 2009 , to the entire satisfication of Engr-in Charge.(ii) On testing after completaion of earthing , if the desired earth resistance is not obatined the earthing wiil be re done by the contractor at his on risk and cost to the entire satisfaction of the Engr - in - charge

NOTE APPLICABLE FOR ALL ITEMS :- If rate quoted for similar/identical items in same part of Sch ‘A’ is at variance, the lowest rate quoted shall only be considered for payment to the contractor.