75/EUDC(VI)/2022-23

Amount

Replacement of Old and Damaged H.T Bushing rod including Oil Seal/Gaskets etc. (160, 250, 400, 630 and 1000 KVA T/F) Load measurement of distribution transformers & arresting of oil leakage where ever required. Opening of top cover & draining of transformer oil below. LV Bushing rod and Replacement of following damage parts as on site &refilling of TF Oil after work completion tighting of top cover, providing photograph before work and after work completion (All material provided by contractor)

a) 250 KVA/400 KVA(i) LV bushing rod 20mm brass

(ii) LV bushing M+F

(iii) Gasket set

(iv) LV Oil seal 20 mm

b) 630 KVA (i) LV bushing rod 30mm brass

(ii) LV bushing M+F

(iii) Gasket set

(iv) LV Oil seal 30 mm

c) 160-630 KVA HV Porcelain bushing

d) 160-630 KVA HV bushing rod 12mm brass

e) 160-630 KVA HV Oil seal 12 mm

(i) Replacement of moist silica gel breather

(ii) Supply & Installation of Silica gel breather with silica gel wherever required for

250/400 KVA-250GM

630KVA-500GM

Replacement of gasket top cover sheet 900x600x6mm packing wherever required

Replacement of Old and Damaged Suitable capacity of Aluminum Lugs (All Material will be provided by Contractor). Fixing of suitable capacity of lugs after removing old and damaged lugs from various capacity of PVC cable with using crimping tools.

Provision of fuse unit at LT side To protect transformer by unbalancing and overloading, provision of fuse unit to be installed at LT side with suitable capacity of Fuse assembly ( All Material as fuse assembly, nut bolts etc. will be provided by contractor)

160, 250 KVA KVA T/F

400 and 630 KVA T/F

Provision of fuse unit at HT side To protect transformer by unbalancing and overloading, provision of DO fuse unit to be installed at HT side with suitable capacity of Fuse assembly ( All Material as fuse assembly, nut bolts etc. will be provided by contractor)

160, 250 KVA KVA T/F

400 and 630 KVA T/F

Repair and Maintenance of Old and Damaged Transformer Earthing:- Maintenance and repair of Transformer Body and Neutral Earthing PIPE/ROD are Damaged, in case of missing pole earthing, provision of M.S Rod Of 20x25mm and 6 SWG earthing wire .will be done by new one as per site requirement. Contactor to ensure that earth connection properly should be tight and earth resistance should be less then 01ohm.(All Material Provided by contactor) of 160 KVA to 250 KVA

Provision of Pipe earthing of body and neutral at two points:- Provision of 70fit deep pipe earthing of transformer body and neutral separately with 1.5 inch dia 60fit pipe. Contactor to ensure that earth connection properly should be tight and earth resistance should be less then 01ohm.(All Material Provided by contactor)

Provision of fuse unit at LT side:- To protect transformer by unbalancing and overloading, provision of fuse unit to be installed at LT side with suitable capacity of Fuse assembly ( All Material as fuse assembly, nut bolts etc. will be provided by contractor) of 100 KVA

Provision of fuse unit at HT side:- To protect transformer by unbalancing and overloading, provision of fuse unit to be installed at HT side with suitable capacity of Fuse assembly ( All Material as fuse assembly, nut bolts etc. will be provided by contractor) f 100 KVA T/F

Repair and Maintenance of Old and Damaged Transformer Earthing:-Maintenance and repair of Transformer Body and Neutral Earthing PIPE/ROD are Damaged, in case of missing pole earthing, provision of M.S Rod Of 20x25mm and 6 SWG earthing wire .will be done by new one as per site requirement. Contactor to ensure that earth connection properly should be tight and earth resistance should be less then 01ohm.(All Material Provide by contactor)

S.R. ENTERPRISES