Dakshinanchal Vidyut Vitran Nigam Limited Tender

Assembly of core and coils and fitting of other parts requiring replacements such as press board etc. Making supports between adjacent section by insulation spacers barriers etc. and tapping etc (Brazing/Soldering required, shall be arranged by the contractor). Shifting and keeping the assembled core and coils etc. In OVEN from the repairing and assembly place.

Cleaning of tank in cleaning yard. Repairing of burst body properly with welding including repairing of bended base channel. Painting of inner side of transformer tank and channels with heat proof zinc chromate paint of good quality. (Berger, Nerolac, Jenson & Necholson etc) Paint material shall be provided by contractor at his own cost.

Dragging out clean empty tank from yard to repairing hall. Taking out assembled core and coils assembly from the "OVEN" after proper magger value and shifting to repairing hall. (Meggar will be arranged by the contractor at his own cost.). Retanking of complete assembly into painted tank and Proper tightening of the assembly in the tank safely by using nut bolts and spring washer of good quality, Fitting of all accessories of the transformer including fixing of pressure release valve/bend pipe for fixing of silica gel breather and filling of oil in transformer after check of BDV as per norms. (Bend Pipe wiil be arranged by the contractor at his own cost.). Tightening of top cover plate of repaired Transformer by using nut, bolts with proper gasket sheet. Punching of unique no. on MS plate 100x50x3 mm. size & Welding of MS Plate on Transformer Body containing following information:- Uniqe Number, Capacity (MS Plate & Punching Machine shall be provided by cotractor).

Painting of T/F outside with super enemal synthetic paint in two coats after de-rusting and providing primer of red oxide paint etc.(color should be decided by EE WS) Paint & Painting Material shall be arranged by the contractor. Painting of 02 No. 50 mm. wide Green/Yelow/Orange/Red strip & writing name of workshop and ^^fo|qr lEcU/kh f'kdk;r gsrq Vksy Qzh ua0 1912 ij lEidZ djsaa**] Dragging of repaired T/F upto the test cabin /testing place and making full arrangement for the testing of transformer and their re-dragging to yard and its stacking at indentified place.

Daily cleaning of Workshop floor area, Open Shade and Open Area including the scrap material such as old paper, old pressboard, old cotton waste etc. (Wood dust, Sweeper, other required man power and T&P shall be arranged by the contractor).

25 KVA THREE PHASE Alu. Wound Core -Dragging, Shifting, Handling of DamageTransformer from stacking yard to Dismentling area. Draining of Oil into pit/drum. Opening of top cover plate by T&P. Taking out the core and coil assembly from the tank. After taking out the Tank at safe area. Dismantling core and coil assembly. Assembly of displaced core and cleaning of dust and dirt by cotton waste and wooden dust from every leaf of laminations if required (Wooden Dust required for this work shall be arranged by the contractor).

Making of L.V. Coils as per original design/design approved by concern JE/AE (Using eigther new coil or reconditioning old coil as per technical conditions of old coil).

Making of HV Leg coils of same size and dimensions as old one or design approved by concern JE/AE (Using eigther new coil or reconditioning old coil as per technical conditions of old coil).

Assembly of core and coils and fitting of other parts requiring replacements such as press board etc. Making supports between adjacent section by insulation spacers barriers etc. and tapping etc (Brazing/Soldering required, shall be arranged by the contractor). Shifting and keeping the assembled core and coils etc. In OVEN from the repairing and assembly place.

Cleaning of tank in cleaning yard. Repairing of burst body properly with welding including repairing of bended base channel. Painting of inner side of transformer tank and channels with heat proof zinc chromate paint of good quality. (Berger, Nerolac, Jenson & Necholson etc) Paint material shall be provided by contractor at his own cost.

Dragging out clean empty tank from yard to repairing hall. Taking out assembled core and coils assembly from the "OVEN" after proper magger value and shifting to repairing hall. (Meggar will be arranged by the contractor at his own cost.). Retanking of complete assembly into painted tank and Proper tightening of the assembly in the tank safely by using nut bolts and spring washer of good quality, Fitting of all accessories of the transformer including fixing of pressure release valve/bend pipe for fixing of silica gel breather and filling of oil in transformer after check of BDV as per norms. (Bend Pipe wiil be arranged by the contractor at his own cost.). Tightening of top cover plate of repaired Transformer by using nut, bolts with proper gasket sheet. Punching of unique no. on MS plate 100x50x3 mm. size & Welding of MS Plate on Transformer Body containing following information:- Uniqe Number, Capacity (MS Plate & Punching Machine shall be provided by cotractor).

Painting of T/F outside with super enemal synthetic paint in two coats after de-rusting and providing primer of red oxide paint etc.(color should be decided by EE WS) Paint & Painting Material shall be arranged by the contractor. Painting of 02 No. 50 mm. wide Green/Yelow/Orange/Red strip & writing name of workshop and ^^fo|qr lEcU/kh f'kdk;r gsrq Vksy Qzh ua0 1912 ij lEidZ djsaa**] Dragging of repaired T/F upto the test cabin /testing place and making full arrangement for the testing of transformer and their re-dragging to yard and its stacking at indentified place.

Daily cleaning of Workshop floor area, Open Shade and Open Area including the scrap material such as old paper, old pressboard, old cotton waste etc. (Wood dust, Sweeper, other required man power and T&P shall be arranged by the contractor).