Augmentation of Grid Sub Station Zainakote from 220/132 KV, 450 MVA to 220/132 KV, 780 MVA by replacing old aged 06 Nos 50 MVA ,220/132 KV Auto Transformers (CG Make) by 06 Nos 220/132/11KV , 105 MVA 01x105 MVA Spare Auto transformers including all

(A) Design,Manufacture,Supply,Packing & Forwarding,Transportation,Delivery At Site of Equipments and Material Main Equipments

105 MVA (ONAN/ONAF/OFAF), 220/132/11KV Single phase Auto Transformer with OLTC, SCADA Compatible RTCC(without NIFPES), HV and LV connectors and other required accessories and fittings, with online DG Monitoring kit 07 Gases, online Dehydration Kit and maintenance free Automatic Breathers as per detailed technical specifications , inbuilt NCTs), common MB/indivdual MB cables including special cables if any and other required accessories,control cables and fittings as per technical specifications .Current density for HV/IV/LV not more than 2.4 A/Sqmm and core flux density not more than 1.5 Tesla.The scope shall also include first filling of Transformer and 10% extra oil.Mandatory spares per transformer shall include following HV RIP bushing 01 No. IV OIP bushing 01 No. , Neutral and Tertiary bushing 01 No. each ,OTI 01 No.,WTI 01 No. ,oil cooler pump with motor 01 No, cooler fans with motor 02 Nos, PRV 01 No, Bucholz 01 No, OSR 01 No., MOG 01 No., Bushing CTs 01 No, Air cell for conservator 01 No and 02 Nos oil sampling bottles

Fresh NIFPES for 50MVA, 220/132KV Single Phase Transformer with Storage tank 10Kl capacity

3 pole, SF6 gas filled, out door Circuit Breaker , including all accessories, auxiliaries and marshalling boxes/Kiosks, (245KV, 3150 Amps of 3 phase, 50 c/s and 50KA for 1 second) along with supporting structure etc complete in all respects, SS body , universal spring charging motor and with breaker mandatory spares.Mandatory spares per breaker include following. closing coil with resistor 01 No, Tripping coils 02 Nos, Relays, power contactors push buttons, Limit switches, Timers, MCBs and switch fuse units, closing coil assembly and trip coil assembly

3 pole SF6 gas filled, outdoor circuit breaker, including all accessories, auxillaries and marshalling boxes/kiosks (145KV,3150 Amp of 3 Phase 50c/s and 40KA for 1 sec) along with supporting structure etc complete in all respects, SS body , universal spring charging motor and with breaker mandatory spares. Mandatory spares per breaker include following. closing coil with resistor 01 No, Tripping coils 02 Nos, Relays, power contactors push buttons, Limit switches, Timers, MCBs and switch fuse units, closing coil assembly and trip coil assembly

Single phase, 50 c/s 245KV Current Transformers (1800-900/ 1-1-1-1-1-1 A or as per site specifications), 50KA for one second, rated dynamic current 100KA(peak), Class A insulation, Burden 20 VA, 3 No PS core , 1 No. 5P20, 1No. 0.2 S Class, 1 No.0.1 S Class Galvanized Tank including first fill of transformer oil plus 20% extra and including all acessories and auxiliaries

Single phase, 50 c/s 145 KV Current Transformers (1500-1800/ 1-1-1-1-1 A or as per site specifications), 40KA for one second, rated dynamic current 100KA(peak), Class A insulation, Burden 20 VA, 3 No PS core , 1 No. 5P20, 1No. 0.1 S Class, Galvanized Tank including first fill of transformer oil plus 20% extra and including all acessories and auxiliaries

Single phase, 50 c/s 36 KV Neutral Current Transformers (1800-900/ 1-1-1 A or as per site specifications), 31.5 KA for one second, rated dynamic current 31.5 KA(peak), Class A insulation, Burden 20 VA, 2 No PS core , 1No. 0.1 Class, Galvanized Tank including first fill of transformer oil plus 20% extra and including all acessories and auxiliaries

245kV, 50c/s , 2500 Amp, SCADA compatible ,50kA for one second, Ac motor operated horizontal double break, outdoor type 3 pole Isolators without Earthing switch, Copper fixed and moving contacts/Copper current carrying moving parts, Galvanized Iron Mechanism Box

245kV, 50c/s , 2500 Amp, Scada compatible ,50kA for one second, Ac motor operated horizontal double break, outdoor type 3 pole Isolators with one Earthing switch, Copper fixed and moving contacts/Copper current carrying moving parts, Galvanized Iron Mechanism Box