REPAIR_MAINTANANCE_SERVICING OF OCBs_ VCBs_ RMUs AND CERTAIN REPAIR REPLACEMENT WORK OF CONNECTED ACCESSORIES AND PAINTING TO PANELS AT KATARIBAGH AND NAVAL BASE KOCHI

Amount

Material and labour for servicing of HT OCB 11 KV along with CTs/PTs of current rating upto 800 A of any make and type by drawing out breaker from panel and carry out the following work:-

(a) Disconnect the breaker from oil tank, draining out oil and keeping aside in barrel for re-use and then again pouring back including necessary filtration and dehydration and replacing/ adding with new transformer oil to top up the required level, filtration/replace the oil, after removing the sludge deposited and cleaning the tank. (b) Cleaning/decarbonizing of all fixed and moving contacts, levers, springs, etc by using suitable cleaning agent and tighten screws, nuts, bolts, spring etc (c) Lubricating/greasing of all operating mechanism and moving parts, switching & tripping mechanism, automatic shuttering system, necessary brazing, turning, polishing of main and auxiliary contact, de-moisturing of insulators and other parts. (d) Checking of tripping relay, etc including interlocking if any (e) Checking of all end terminals, fighting the nut, bolt and washers, replace the unserviceable nut, bolt & washers, draw-in the breaker, put in position, engage the OCB with the supply system and testing for smooth functioning. (f) Check oil dielectric strength before and after filtration (g) Checking of operating mechanism adjustments, internal wiring circuit, including providing insulation by necessary taping, tightening of all connections, replacement of HRC fuse (if any found u/s), measurements of the mechanical clearances of the operating mechanism associated with the tank or pole should be made including removing moisture deposit. NOTE :- (i) The cost of cleaning materials, HT Tape, thinner, cotton waste, monoplast, unserviceable cable end socket, steel nut, bolt with double washers, HRC fuses, MCB SP upto 6 Amp, fuse carrier base, replacement of complete HT packing/gasket shall deemed to be included in the quoted rate. (ii) filtration / dehydration of transformer oil / top up of transformer oil if any shall be measured and paid separately in supply only and the labour charge shall deemed to be included in the quoted rate. (iii) Contractor shall isolate and earth the breaker before start the work.

S&F spout assembly including front and rear with Plug, Shutters, Adapters for OCB 11 KV HT for R, Y, B including female contact and taking down old item for OCBs of make BIECCOLARIE/ CG as that of existing make / model and capacity.

S&F Trolley bushing with male and female contact as that of existing make/model and capacity.

S&F Push trip assembly as per existing size, type and suitable for 11 KV OCB including taking down old item.

S&F Copper connection for C.T. With nut, bolt and double washers for 11 KV OCB as per existing type and model including taking down old item.

S&F Vacuum interrupter, 11 kV HT as per existing size and type

S&F Cluster contact for 11 kV VCB as that of existing make/model and capacity.

S&F Copper bus bar as per existing size, type and suitable for 11 KV OCB/VCB including taking down old item.

S&F Aluminium bus bar as per existing size, type and suitable for 11 KV OCB / VCB including taking down old item.

S&F Motor and gear assembly operating mechanism for closing springs after each closing operation of VCB

S&F Shunt trip coil – 24V. D.C. as per existing size, type and suitable for 11 KV OCB including taking down old item.

S&F Fixed contacts as per existing size, type and suitable for 11 KV OCB including taking down old item.

S&F Main trip lever assembly as per existing size, type and suitable for 11 KV OCB including taking down old item.

S&F Tripping coil unit as per existing size, type and suitable for 11 KV OCB including taking down old item.

S&F Epoxy Resin Cast Insulators/supports HT 11KV as per existing size and type including taking down old item.

S&F HT busbar sleeves up to 42/16 mm/60/28 mm including taking down old item.

S&F panel control trip-neutral-close switches, barrel lock suitable for 11 KV HT OCB/VCB as per existing size and type including taking down old item ,all as specified.

Calibration of protective relays of IDMT or any other type by using relay injection kit including necessary adjustment of over current / earth fault / earth leakage by secondary current injection test along with testing and calibration of pickup current, time setting multiplier, tripping delay time, auto resetting of time, etc for successful operation at the time of fault occurrence as required according to the connected load and all as directed .

Material and labour for taking down one set of PT from HT panel after disconnecting both mechanical and electrical connection, and transporting to local workshop to carry out the following repair works : (a)Taking out windings, insulators etc, (b) Re winding, Varnishing of transformer after thoroughly cleaned to remove sledge accumulation, dirt, etc by heating, drying in oven complete. (c) Checking of insulator resistance by means of HT megger. (d) Re-assemble the PT and transporting back to site & refix to the original position, testing for smooth function all as directed

Material and labour for servicing of HT VCB 11 KV of current rating upto 630 A of any make and type by drawing out breaker assembly from panel and carry out the following work:-

(i) Cleaning/decarbonizing of all fixed and moving contacts, levers, springs using suitable cleaning agent and tightening of screws, nuts, bolts, spring etc, (ii) Adjust the trolley in and out mechanism , (iii) Lubricating/greasing of all operating mechanism and moving parts, switching & tripping mechanism, automatic shuttering system, necessary brazing, turning, polishing of main and auxiliary contact, de-moisturing of insulators, etc to be done. (iv) Testing of tripping performance of HT VCB by primary & secondary high current injection, testing of CT ratio and polarity, (v) Checking of tripping relay including interlocking if any. (vii) Checking of operating mechanism adjustments, measurements of the mechanical clearances of the operating mechanism, internal wiring circuit etc, tightening of all connections, replacement of HRC fuse, fuse carrier base (if any found u/s) including removing moisture deposit inside the VCB. (viii) Checking all end terminals, tightening the nut bolt and washers, replace the unserviceable nut, bolt & washers, draw-in the breaker, put in position, engage the VCB with the supply system and testing for smooth functioning. NOTE : (i) The cost of cleaning materials, HT Tape, thinner, cotton waste, monoplast, unserviceable cable end socket, steel nut, bolt with double washers, HRC fuses, MCB SP upto 6 Amp, fuse carrier base, replacement of complete HT packing/gasket shall deemed to be included in the quoted rate. (ii) Contractor shall isolate and earth the breaker before start the work.

S&F, drive link assembly with Adjustor as per existing size, type and suitable for 11 KV VCB including taking down old item.

S&F, Auxiliary Switch (7 NO+7NC) as per existing size, type and suitable for 11 KV VCB including taking down old item.

S&F, Closing Coil Assembly as per existing size, type and suitable for 11 KV VCB including taking down old item.

S&F , Tripping Coil Assembly as per existing size, type and suitable for 11 KV VCB including taking down old item.

S&F, Spout Bushing with current carrying Parts (Contact plug) Upper / lower 400 to 630 A for single phase as per existing size, type and suitable for 11 KV VCB including taking down old item.

S&F, Rack in Rack Out Handle as per existing size, type and suitable for 11 KV VCB including taking down old item.

S&F, Spring Charging Handle as per existing size, type and suitable for 11 KV VCB including taking down old item.

S&F, space heater as per existing size, type and suitable for 11 KV VCB including taking down old item.

S&F, thermostat for space heater as per existing size, type and suitable for 11 KV VCB including taking down old item.

Material and labour , for general servicing of HT 11 KV isolator / oil switch fuse of current rating upto 400 A of any make and type and carry out the following work :- (i) cleaning/decarbonizing of all contacts, levers using suitable cleaning agent and tightening of screws, nuts, bolts, etc (ii) Lubricating/greasing of all operating mechanism and moving parts, switching mechanism, de-moisturing of all parts (iv) Checking of all operating mechanism adjustments, measurements of the mechanical clearances of the operating mechanism, tightening of all connections, replace the unserviceable nut, bolt & washers, engage the isolator with the supply system and testing for smooth functioning. (v) Heating/drying/testing of insulators for desired IR value including dehydration/filtration of oil/ replacement with new oil in oil switch fuse re-fitting to original position and testing, complete all as specified.

NOTE :- (i) The cost of cleaning materials, HT Tape, thinner, cotton waste, monoplast, unserviceable cable end socket, steel nut, bolt with double washers, replacement of complete HT packing/gasket shall deemed to be included in the quoted rate. (ii) Contractor shall isolate and earth the breaker before start the work.

Material and labour for servicing of HT 11 KV, RMU any type and make by carry out the following work:-

(i) cleaning/decarbonizing of all, levers, springs using suitable cleaning agent and tightening of screws, nuts, bolts, spring etc for proper functioning, (ii) Lubricating/greasing of all operating mechanism and moving parts, switching & tripping mechanism, de-moisturing of all parts (iii) Testing of relay tripping performance of RMU (iv) Checking of all relays and interlocking if any (v) Calibration, performance testing and necessary adjustment of relays for successful operation at the time of fault occurrence etc, (vi) Checking of operating mechanism adjustments, measurements of the mechanical clearances of the operating mechanism, internal wiring circuit etc, tightening of all connections, replacement of unserviceable fuse/MCB SP including removing moisture deposit inside the RMU (vii) Checking all end terminals, lighting the nut, bolt and washers, replace the unserviceable nut, bolt & washers, engage the RMU with the supply system and testing for smooth functioning complete all as specified. NOTE :- (i) The cost of cleaning materials, HT Tape, thinner, cotton waste, monoplast, unserviceable cable end socket, steel nuts, bolts with double washers,MCB SP upto 32 Amp, replacement of complete HT packing/gasket shall deemed to be included in the quoted rate. (ii) Contractor shall isolate and earth the breaker before start the work.

S&F Cable boot for terminal protection as per existing size and type including taking down old item.

S&F Resin cast indoor current transformer for HT panel, 300/150/5 Amp, 15 VA burden, accuracy class 0.5 having insulation level 12/28 KV including taking down old item ,all as specified. Make : PGR / INDUS / INTRANS /ERICON

S&F Resin cast indoor current transformer for HT panel, 200/100/5 Amp, 15 VA burden, accuracy class 0.5 having insulation level 12/28 KV including taking down old item ,all as specified. Make : PGR / INDUS / INTRANS/ ERICON

S&F Resin cast indoor current transformer for HT panel, 100/50/5 Amp, 15 VA burden, accuracy class 0.5 having insulation level 12/28 KV including taking down old item ,all as specified. Make : PGR / INDUS / INTRANS/ ERICON

S&F in repair dry type PT unit with resin cast suitable for indoor installation 11 KV/ 110 Volts 100 VA ,50 Hz, class 0.5 accuracy, consisting of one single phase PT with suitable metal enclosure for mounting on HT switch gear panel with HV HRC PT fuse of 2 Amps capacity, testing and commissioning all as specified and as directed including taking down old item. Make : PGR / INDUS / INTRANS / ERICON

S&F in repair 3 phase over current + earth fault relay with high set and RS 485 port, CT rating 1A or 5A, 24 - 240 Volt AC/DC with output contact, IDMT and definite time characteristics suitable for 11 KV HT panel including taking down old item ,all as specified. Make : L&T / ABB/C&S/CG

S&F in repair feeder protection relay with protections 50,51,50N,51N,68,95,86, measurement for 3I,I0, 4DI + 6D0, phase and earth current input, IEC version RSc485 for MODBUS communication Vaux 24 to 240 DC/AC suitable for 11 KV HT panel including taking down old item ,all as specified. Make: L&T / ABB/C&S/CG

S&F Rectifier unit, 230 - 110 Volt AC input and 24V DC,16 Amp out put with all connected accessories as per existing type and size including taking down old item all as specified.

S&F LED indicator of RED/GREEN/ YELLOW/AMBER/ WHITE including taking down old materials, all as specified. Make : L&T / Havells / Standard/Siemens/C&S

S&F LED indicator of BLUE including taking down old materials all as specified. Make : L&T / Havells / Standard/Siemens/C&S

S&F push button RED/ GREEN /YELLOW / BLACK/ WHITE/ BLUE including taking down old materials all as specified. Make : L&T / Havells / Standard/Siemens/C&S

Obliterating of old writing of any description. n.exc 0.1 sq m with paint to match existing work

M&L for writing letters or figures (Block, Roman, Italic or Indian) in any colour by paint or by sticker letter, n.exc 30 cm height.

M&L, for Index hands (natural size) or arrows, (upto 40 cm long) in any colour by paint or by sticker as directed

M&L for stops, commas, short lines, dashes, hyphens, brackets, etc in any colour by paint or by sticker as directed

M&L for air termination, single pointed aluminium rod 12 mm dia and 300 mm long including taking down of old one. NOTE : Contractor shall make necessary arrangements for scaffolding works and also ensure safety of his workers at his own risk while working. The quoted rate shall inclusive of the same.

M&L for aluminium strip 25 X 3.15 mm with saddles and fixing screw, etc for roof conductors and down conductors above ground as directed

S&F Automatic battery charger 24 volt DC with connecting lead copper , Ammeter with indicating lamps, minimum 10 Amp with maintenance free sealed battery of 12 volt 42 Ah of Make : EXIDE along with suitable size trolley and all as directed

S&F in repair multipowered current protection relay suitable for 11 KV RMU with O/C, S/C,E/F & E/F high set DEFT and inverse characteristic, RS 485 MODBUS, internal battery and circuit breaker failure protection including taking down old item ,all as specified. Make : ASHIDA/ ABB/C&S/CG

S&F in repair self powered programmable short circuit and earth fault passage indicator suitable for 11 KV RMU including internal battery and cable mounted sensors all as specified and directed. Make: C&S/ABB/CG/SIEMENS

S&F in repair integrated voltage detection system LLI conforms IEC 61243-5 suitable for 11 KV RMU including coupling electrodes, connecting leads, and adaption capacitors all as specified and directed. Make: C&S/ABB/CG/SIEMENS

S&F in repair door lock of 11 KV RMU including handle with locking arrangements and link rode's all as specified and directed.

S&F Resin cast indoor current transformer suitable for RMU 200-100/1 Amp, 2.5 VA burden, accuracy class 5P10, 25 kA for 3 Sec, 0.66/3 kV, including taking down old item ,all as specified. Make : PGR / INDUS / INTRANS/ ERICON

S&F Resin cast indoor current transformer suitable for RMU 100-50/1 Amp, 2.5 VA burden, accuracy class 5P10, 25 KA for 3 Sec, 0.66/3 KV, including taking down old item ,all as specified. Make : PGR / INDUS / INTRANS/ ERICON

S&F in repair sealed rechargeable battery 12V, 7 Ah, suitable for 11 KV RMU all as specified and as directed.

M&L painting of inside surface of the HT OCB/VCB /RMU /Isolators of any make and type including PT enclosure, doors, etc with heat resistance paint by pressure bottle spray painting after cleaning and preparation of old surface from dust, oil, rust and make the surface ready for painting all as directed. NOTE :Contractor shall ensure the safety of the Painter/ Electrician/ Supervisor/Engineer while working on HT electric system at his own risk.

M&L painting of outside surface of the HT OCB/VCB/RMU/ Isolators of any make and type including PT enclosure, doors, etc with synthetic enamelled paint by pressure bottle spray painting after cleaning and preparation of old surface from dust, oil, rust and make the surface ready for painting all as directed. NOTE : Contractor shall ensure the safety of the Painter/ Electrician/Supervisor/Engineer while working on HT electric system at his own risk.

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