DEHYDRATION OF TRANSFORMER OIL INCLUDING CONNECTED WORKS AT INA EZHIMALA

Amount

M&L for filtration and dehydration of transformer oil using filtration plant and testing the die-electric strength of transformer oil and achieving the result of 60 kV and submitting the test report. Provision necessary stand by DG set required for the power supply for the machine where supply can not be provided will be the responsibility of the contractor and all as specified and directed

Supply and topping up of transformer oil confirming to IS 335 in Transformers and oil circuit breaker all as specified and directed. Note :- Test certificate from the manufacturer should be produced.

M&L for spreading, levelling 40 mm graded aggregate in layers not exceeding 15 cm thick including ramming in yard all as directed

S&F silica gel breather complete set up to 1600 kVA transformer

M&L for replacement of silica gel of transformer breather as directed.

Removal and Replacement of burnt out defective HT copper coil of transformer of any capacity with new by rewinding with suitable gauge of super enamelled copper wire of high quality matching with the existing impendence and insulated all as specified and directed by EIC.

Removal and Replacement of burnt out defective LT copper coil of transformer of any capacity with new by rewinding with suitable gauge of super enamelled copper wire of high quality matching with the existing impendence and insulated all as specified and directed by EIC.

M&L for draining out of oil up to the bottom level of transformer and opening of HV and LV bushings of transformer capacity 11kv/433volt capacity up to 250kVA step down transformer of any make for replacing the all mounting gaskets of the transformer body and conservator to arrest the oil leakage and replacement of gasket HT/LT terminal bushing gasket/bushing and rectifying oil leakage and making all connections complete as specified and as directed.

All as per item no.8 but of capacity 315kVA to 750 kiva

All as per item no.8 but of capacity 1000kVA to 1600 kiva

Supply and fixing 11 kV HT terminal porcelain bushing suitable up to 250 kVA transformer including suitable brass stud as per site requirement) including taking down the existing unit all as specified and directed Make Jaipuria or equivalent

All as per item no.11 but of capacity 315kVA to 750 kiva

All as per item no.11 but of capacity 1000kVA to 1600 kiva

Supply and fixing 11 kV/433 volt LT terminal porcelain bushing suitable up to 1600 kVA transformer as per site requirement all as specified and directed included taking down. Make Jaipuria or equivalent

All as per item no.14 but of capacity 315kVA to 750 kiva

All as per item no.14 but of capacity 1000kVA to 1600 kiva

Supply and fix in replacement of 11 kV /433 Volt Transformer Diaphragm of capacity 1000kVA to 1600 kVA as per site requirement. Make ABB/KIRLOSKAR/KEL or equivalent

Supply and fix in replacement of 11 kV /433 Volt Transformer Expulsion fuse unit .Make ABB/KIRLOSKAR/KEL or equivalent

Supply and fix in replacement of oil temp gauge for 11 kV 433 Volt Transformer up to 1600kVA as per site requirement.

M & L Cement plastering with 20 mm thick ratio 1:4 on fair faces of stone masonry surfaces making good facing complete.

M&L for applying one coat of white cement paint on the surface of transformer base/wall complete all specified.

Material and labour for earthing complete with galvanized steel earth plate electrode 60cm x 60cm x 6mm thick buried directly in ground(earth pit not less than 2.25 metre below normal ground level) with top edge of the plate not less than 1.5 metres below normal GL, connected to and including galvanized earth lead Strip of size 32mmx6mm up to 7.5 m distance and connected by means of bolts, nuts, checknuts and washers of galvanized iron and including 15 mm dia medium grade GI pipe including excavation, earth work in any strata, charcoal, salt and pack chamber, RCC 20 mm thick cover complete , testing and connecting up complete all as specified and directed by EIC

Fixing in repair Aluminium strip 25 x 3.15mm with saddles and fixing screws etc. for earthing strip of transformer and LT panel complete all as directed by EIC.

Handling, loading, unloading and transportation of unserviceable burnt out Transformer of any capacity from the site to the nearest workshop and loading back from workshop, transportation to the site with Transformer after repairs, unloading and installation at site completely all as directed.

Supply and fix in replacement of 05 Kovar (heavy duty) aluminium can type (gas filled) capacitor 440 Volts complete all as specified and directed by EIC. Make: Schneider/Epcos/L&T

All as per item no.25 herein before but of capacity 10 Kovar

All as per item no.25 herein before but of capacity 15 Kovar

All as per item no.25 herein before but of capacity 20 Kovar

Supply and fix in replacement of 12.5 Kovar Capacitor Duty Contactor (01 No +01 NC) 440 Volts complete all as specified and as directed by EIC. Make :Schneider/ABB/L&T/Indo Asian

All as per item no.29 herein before but of capacity 16.7 Kovar

All as per item no.29 herein before but of capacity 20 Kovar

All as per item no.29 herein before but of capacity 25 Kovar

M&L for applying two coat of synthetic enamel paint by spray paint after preparation of the entire body of transformer by removing rust deposited completely, transformer capacity up to 1600 KVA and marking SM/MES No installed in substations

All as per item no.33 but of capacity 315kVA to 750 kiva

All as per item no.33 but of capacity 1000kVA to 1600 kiva

Supply and jointing Cable end termination joint, heat shrinkable type, suitable for 3 core 95 SQMM, HT 11 KV (Earthed) XLPE, insulated cable, outdoor type with all connected accessories and jointing materials all as specified and directed by EIC. Make 3M, Raychem, Denson

All as per item no 36 above but size 300 sqmm

Supply and jointing straight through cable jointing kit HT 11 KV (Earthed) grade , straight through heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE Armoured aluminium conductor cable of size 95 sqmm complete all as specified Make 3M, Rechem, M-Seal

All as per item no 38 above but size 300 sqmm

Supply and fix in replacement of compressing/crimping type sleeve joints for jointing conductor/jumper connections including treatment with conducting jelly above 10mm dia complete all as specified and directed

Supply and fix Gang operated Air break switch triple pole mechanically operated on insulators and steel frame with operating mechanism. worked from ground level for current rating up to 400 amps,11000 volts all as specified and directed by EIC. Make Jaipuria /BHEL/Pactil

Supply and fix in replacement of Lightning arrestor expulsion type complete with all fittings and transmission class discharge capacity 65 kilo amps suitable for 11000 V grade. (Each set of three) Make Jaipuria /BHEL/Elpro

Supply and fix single Disc insulator assembly porcelain vitreous 145mm high and 255 mm dia ball and socket type including tension clamps for 11000 volt complete all as specified and directed by EIC. Make Jaipuria /BHEL/Rashtriya

Supply and fix in replacement of Pin insulator porcelain vitreous white ,brown or green insulator including one galvanised mild steel straps, washers, insulator bolts, washers and nuts and one galvanised steel nut 150 mm dia 150 mm height suitable for 11000 volts grade all as specified and directed by EIC. Make Jaipuria /BHEL/Rashtriya

PHEJAYS AGENCIES

Sreekrupa Enterprises