REPAIRS/ MAINT OF 33/11 KV SUB STN/POWER TRANSFORMER INCL SERVICING OF VCBs, CAPACITOR BANK AND ALLIED WORKS AT RMS

Amount

Material and labour for servicing /testing of transformer circuit breaker, control panel including outdoor CT, PT and relays in control panel of outdoor SF 6 Gas Circuit Breaker of capacity 1250/800 Amps and rating 36 KV complete as details mentioned as under:- (a) Details of servicing of breaker :- (i) Checking of Closing/Tripping coil assembly (ii) Adjustment of mechanism if required. (iii) Clean the circuit breaker to remove dust and dirt. (iv) Apply a small amount of oil to rotary sections, sliding surfaces, pins, coupling section, etc.use grease for the operating shaft and bearings, and machine oil for other parts. (v) Visual check for rusted,wear/tear parts. (vi) Checking of spring charge mechanism (vii) Visual check for rust and deformation. (viii) Check for loosened bolts and nuts, broken spring washers and snap pins etc. (ix) Check for loosened connections, rust, damaged lead wires. (x) Checking of control circuit & tighten the connections if any.

(xi) Check close & triping coil. (xii) Replacement of Dashpot/shock absorbers . (xiii) Replacement of carbon brush of spring charging motor (xiv) Cleaning of porcelain bushing (xv) Checking of limit switch etc (b) The following test shall be carried out:- (i) Primary Injection Test of outdoor CT / PT (ii) Closing & Opening Timing Test for all three poles. (iii) IR Test with megger in open and closed condition. (iv) Contact resistance test for all three poles (v) Closing coil resistance (vi) Tripping coil resistance. (c) Testing of following relays of control panel with Secondary Injection Kit ,checking and programming of relay :- (i) Over current and earth fault Relay (ii) Transformer diffrential relay

(d) Testing of followig Aux relay (i) DC supply supervision relay. (ii) CB SF 6 gas pressure low. (iii) Master trip relay (iv) Main Buchholz trip (v) Buchholz OLTC Trip (vi) SPR & PRV trip. (vii) Winding temp high trip (viii) Oil temp high trip. (ix) Main Buchholz alarm (x) Winding temp High alarm (xi) Low Oil level alarm (xii) Oil temp high alarm Note:- (i) Certification of testing and calebration from OEM will be provided by the contranctor. (ii) New spare parts will be replaced by Genuine spare parts only as per OEM authorised/consultation. (iii) New spare parts will be measured & paid separately as mentioned in respecive srl items below of this schedule.

Material and labour for servicing /testing of breaker/control panel including CT, PT and relays in control panel of VCB of capacity 1250 /800/630 Amps and rating 11 KV complete as details mentioned as under:- (a) Details of servicing of breaker :- (i) Adjustment of mechanism if required. (ii) Clean the circuit breaker to remove dust and dirt. The envelope of the vacuum interrupter and insulating materials shall be wiped with a clean cloth. (iii) Apply a small amount of oil to rotary sections, sliding surfaces, pins, coupling section, etc.use grease for the operating shaft and bearings, and machine oil for other parts. (iv) Visual check for rusted,wear/tear parts. (v) Check Spring Tension and pitting of the Cluster Contacts. (vi) Visual check for rust and deformation. (vii) Check for loosened bolts and nuts, broken spring washers and snap pins etc.

(viii) Check for loosened connections, rust, damaged lead wires. (ix) Check whether the contacts are damaged by arcing. (x) Checking of control circuit & tighten the connections if any. (xi) Check close & trip coil. (xii) Checking of Jaw Contacts Conditions and repair/adjust. (xiii) Replace the jaw contacts,If required. (xiv) Improvement of resistance of epoxy insulator and epoxy body by applying post heated varnish. (xv) Replacement of Dashpot/shock absorbers . (xvi) Replacement of carbon brush of spring charging motor (xvii) Checking, cleaning, tightening , testing the busbars incl bus chambers, CT/PT (xviii) Checking, cleaning, tightening , testing of support insulator, Spouts etc

(b) The following test shall be carried out:- (i) Primary Injection Test of CT / PT (ii) Closing & Opening Timing Test for all three poles. (iii) IR Test with megger in open and closed condition. (iv) Contact resistance test for all three poles (v) Closing coil resistance (vi) Tripping coil resistance. (c) Testing of following relays of control panel with Secondary Injection Kit ,checking and programming of relay :- (i) Over current and earth fault relay (d) Testing of followig Aux relay (i) DC Supply supervision relay. (ii) Master trip relay Note:- (i) Certification of testing and calebration from OEM will be provided by the contranctor. (ii) New spare parts will be replaced by Genuine spare parts only as per OEM authorised/consultation. (iii) New spare parts will be measured & paid separately as mentioned in respecive srl items below of this schedule.

Supply only of big and small gear assembly with handle and bracket suitable for 11 KV HT VCB all as specified and directed by Engr-in-Charge.

Supply only Anti pumping device, suitable for 11 KV HT VCB all as specified and directed by Engr-in-charge.

supply only Worm wheel with work shaft suitable for 11 KV HT VCB all as specified and directed by Engr-in-Charge.

Supply only HRC fuse as per existing sample suitable for 11 KV HT VCB complete all as specified and as directed by Engr-in-Charge.

Supply only voltmeter PT operated suitable for 11 KV HT VCB complete all as specified and as directed by Engr-in-Charge.

Supply only ammeter CT operated suitable for 11 KV HT VCB complete all as specified and as directed by Engr-in-Charge.

Supply only under over voltage relay CGV 24C suitable for 11 KV HT VCB complete all as specified and as directed by Engr-in-Charge.

Supply only TNC Switch suitable for 11 KV HT VCB complete all as specified and as directed by Engr-in-Charge.

Supply Only trip circuit healthy push button suitable for 11 KV HT VCB complete all as specified and as directed by Engr-in-Charge.

Supply only ZZ limit switch suitable for 11 KV HT VCB complete all as specified and as directed by Engr-in-Charge.

Supply only over curent and earth fault relay CG 114N suitable for 11 KV HT VCB complete all as specified and as directed by Engr-in-Charge.

Supply and fixing of set of isolating contact assy 630A suitable for 33 KV HT VCB incl taking down old unsv items complete all as specified and as directed.

Supply only of UPPER SUPPORT - 450025001 incl taking down old unsv items complete all as specified and as directed.

Supply only of LOWER SUPPORT incl taking down old unsv items complete all as specified and as directed.

Supply only of SPOUT BUSHING UP TO 1250A (1 SET-6 NOS) - 450088057 incl taking down old unsv items complete all as specified and as directed.

Supply only of SET OF 3 Nos. SPOUT BUSHING WITH CC PARTS (Contact Plug) UPPER 630/800 AMP incl taking down old unsv items complete all as specified and as directed.

Supply only of SET OF 3 Nos. SPOUT BUSHING WITH CC PARTS (Contact Plug) LOWER 630/800AMP incl taking down old unsv items complete all as specified and as directed.

Supply only of SPOUT BUSHING WITH CC PART FOR "R" ,"Y" & "B" PHASE LOWER 630A/800A incl taking down old unsv items complete all as specified and as directed.

Supply only of SPOUT BUSHING WITH CC PARTS UPPER 1600 AMP - UNIVAC- (SET OF 3 Nos) 450088032 + 450V5512Q incl taking down old unsv items complete all as specified and as directed.

Supply only of Emergency Push to Trip assembly for PANEL (Ref.- W.O. V6921) - TRIP CABLE incl taking down old unsv items complete all as specified and as directed.

Supply only of VI (3" Dia) Type WL 34599 M3+ incl taking down old unsv items complete all as specified and as directed.

Supply only of VI (4"Dia) Type VL 33379 -109 incl taking down old unsv items complete all as specified and as directed.

Supply only of MOTOR & GEAR ASLY 110V AC/DC UMG 14 TYPE (DELCO MAKE PMR-5) incl taking down old unsv items complete all as specified and as directed.

Supply only of HOLDING CATCH ASSEMBLY incl taking down old unsv items complete all as specified and as directed.

Supply only of PUSH BUTTON BRACKET ASSEMBLY incl taking down old unsv items complete all as specified and as directed.

Supply only of CHARGED/DISCHARGED INDICATOR ASSEMBLY incl taking down old unsv items complete all as specified and as directed.

Supply only of SPRING CHARGING HANDLE FOR HAND OPERATING as per sample and suitable for 11 KV VCB incl taking down old unsv items complete all as specified and as directed.

Supply only of CLOSING SPRING ASSEMBLY as per sample and suitable for 11 KV VCB incl taking down old unsv items complete all as specified and as directed.

Supply only of TRIPPING SPRING ASSEMBLY-450171005 (1SET-2NOS) as per sample and suitable for 11 KV VCB incl taking down old unsv items complete all as specified and as directed.

Supply only of BREAKER POSITIONING LEVER WITH VCB FREE TO CLOSE/TRIP KNOB (ROLLER CAM SWITCH WITH RED KNOB 2 N/O) incl taking down old unsv items complete all as specified and as directed.

Supply only of Motor Bracket for Hand charge complete all as specified and as directed.

Supply only of Upper Terminal Plate Square (12mm Thick) complete all as specified and as directed.

Supply only of Lower Terminal Plate Square (12mm Thick) complete all as specified and as directed.

Supply only of POWER PACK (INPUT-230 VAC - OUTPUT-110 VDC) complete all as specified and as directed.

Supply only of 11kV INDOOR PT Secoundary FUSE (3.15A) complete all as specified and as directed.

Supply only of BUTTERFLY SWITCH FOR MOTOR CUT-OFF incl taking down old unsv items complete all as specified and as directed.

Supply only of TIMER FOR MOTOR incl taking down old unsv items complete all as specified and as directed.

Supply only of TEST SERVICE LIMIT SWITCH complete all as specified and as directed.

Supply only of LED LAMP-RED, of SAP Code : 460232452D complete all as specified and as directed.

Supply only of LED LAMP-GREEN of SAP Code 460232453D complete all as specified and as directed.

Supply only of LED LAMP-BLUE of SAP code 460232456D complete all as specified and as directed.

Supply only of LED LAMP-AMBER of SAP Code 460232454D complete all as specified and as directed.

Supply only of LED LAMP-WHITE of SAP Code 460232457D complete all as specified and as directed.

Supply only of LED LAMP-YELLOW of SAP Code 460232460D complete all as specified and as directed.

Supply only of 11 KV Current Transformer IS-2705 , current ratio 100/5+5 Amp, rated frequency 50 Hz, STC 18.4 KA for 1 Sec, indoor type incl taking down old unsv items complete all as specified and as directed

Material and Labour for decarbonsing/cleaning the cable compartment of Ring Main Unit 3 Way, 11 KV, consists of End joints,Current transformers, cable boots, bushings, by opening compartment cover by carefully switching off the main input cable supply and necessary switching ON of Earth switch of RMU thereby inspecting the end joints, current transformer, bushings and cable boots, checking the bushings for any flash overs/tracks, applying Becktol red solution to the bushings having moderate tracking, applying suitable HT insulated tape over anti tracking tube to prevent further tracking on, cleaning of end joints, CTs & cable boots with CTC and ensure proper decarbonisation and re-assembling complete all as directed by Engineer-in-Charge.

Replacement of of Contactor RT - 24VDC, suitable for RMU 11 KV including necessary electrical and mechanical connection complete all as specified and as directed.

Replacement of of Close Push button, suitable for RMU 11 KV, ncluding necessary electrical and mechanical connection complete all as specified and as directed.

Replacement of of Open push button, suitable for RMU 11 KV, ncluding necessary electrical and mechanical connection complete all as specified and as directed.

Replacement of of Operating handle Standard, suitable for RMU 11 KV, ncluding necessary electrical and mechanical connection complete all as specified and as directed.

M & L for repair of battery bank float cum booster charger by filling up distilled water in lead acid battery , cleaning of battery terminal, including repairing variable type rotary transformers (automatic battery charging system) suitable for input of 230 Volts AC 50 Hz single phase and having adjustable charging rate up to 100 AH at 110 V DC complete as specified and directed. Note :Batteries shall be measured & paid separetly under respective item of this schedule.

Taking out unserviceable batteries from DC battery bank float cum boost charger and S&F with 12 Volts 100 AH new maintenance free batteries dry type complete all as specified and directed.

M&L for Servicing & Repairs to Air-break switch (isolator) off load, rotating type, 33 KV, 800 Amps to 1250 Amps capacity, with proper alignment of isolator rotating blades, with fixed contact jaws, arcing horns, applying petrolium jelly to moving mechanism, cleaning and lubricating to isolator gear box assembly, tightening all nuts, bolts and clamps of jumpers etc, repairing to isolator gear box assembly and making in proper serviceable condition for smooth functioning, testing and commissioning on load complete all as specified and directed.

Supply and Laying cable 1100 volts with PVC insulated and steel armoured with multi stranded copper conductor of the sizes 16 sqmm 3.5 core complete all as specified and directed.

Supply & Fixing in replacement of Gasket for upto 3 MVA transformer (SRC RC 70C Grade) with including all required T&P for drain out and refilling transformer oil after proper filteration,comminissioning and testing complete all as specified and directed.

Supply installing testing and commissioning in replacement the relay module Micom P111 (3 phase over current and earth fault relay) making necessary cutting in the existing panel and necessary control wiring FRLS of size not less than 2.5 Sqmm and providing Ferules for identification and necessary spares for fixing complete to the entire satisfaction of the Engr-in-Charge.

M&L for Preparation of old painted inner/outer surfaces of indoor/out door HT/LT panels, spray painting the same with two coat of synthetic enamel paint(RAC 7032) simens grey to achive smooth finish including writing of SM/MES No complete all as specified and directed.

Supply and fix in repairs of Alarm annucator 12 window of model MBAS-0600 suitable for 33/11KV HT breaker complete all specified and directed.

Maint and servicing of APFC panels of capicity 640 KVAR 11 KV online and their components, cleaning complete with blower and removing of deposited carbon particals from the terminals, adjusting relays and other parts up to certain limit as required including taking down old U/S parts and Accesories and calibrated as all as specified and directed

Supply and fixing high voltage HRC fuse of capacity 100A for capacitor bank incl taking down existing old one complete all as specified and directed.

Supply and fixing high voltage HRC fuse of capacity 200A for capacitor bank incl taking down existing old one complete all as specified and directed.

M & L for graded coarse aggregate (broken stone or boulders) of size 40 mm in sub - station yard for laying of uniform thickness complete all as specified and directed.

M&L for removal of unwanted grass, plants and vegetations from E/M installations on monthly basis including surface dressing ans removal of grass,plants and vegetations from site not less than 50 mtr from starting point complete all as specified and as directed. (Note : Removal of unwanted grass and vegetation will be repeated once in a month)

M & L for ON load Centrifuging and dehydration including filteration and cleaning of transformer oil by dehydration machine of 33 KV transformer / Stn transformer at site and topping up deficient transformer oil including testing of samples before and after dehydration and filteration complete all as specified and directed. Note :- (a) Deficient quantity of Transformer oil required for top up shall be measured and paid separately under item here-in -after as supply only. (b) Test report of dielectric strength shall be recorded before and after dehydration process. Dielectric strength should be not less than 60 KV in 2.5 mm gap.

Supply only transformer oil of approved quality as per IS having dielectric strength of 45-60 KV in 2.5 mm gap for filling in transformer or for topping up as required complete all as specified and directed.

Material & labour for repair overhauling/ Servicing of OLTC ( On load tap changer ) of 33KV/11KV Power transformer of capacities upto 6 MVA at site by carried out following work :- (a) Opening of top plate of OLTC. (b) Draining out of transformers oil from the OLTC. (c) Stoping of leakage of oil from main shaft of OLTC including replacement of oil seal and all gasket of OLTC. (d) Checking /servicing of moving and fixed contact of OLTC and resistence test of contact. (e) Flushing of OLTC assembly with hot new oil and removing of sludge. (f) Filling of new transformer oil in OLTC . (g) Tightening of all tapping leads and connections. (h) Refixing of top plate of OLTC in original position after overhauling. (i) Electrical testing of manual/auto operation of OLTC. Note :- Transformer oil as required shall be measured and paid separately under relevent itme as supply only.

Material & labour for repair /servicing of marshalling box panel of 33KV/11KV Power transformer of capacities upto 6 MVA including following :- (a) Testing & repair to control wiring. (b) Testing of OTI, WTI , meter matching with OTI, WTI indicator in control panel. (c) Replacement of burned fuse. (d) Repalacement of gaskets & locks including preparation of old painted surfaces of steel by brushing/cleaning stain, greasy spots with thinner etc complete all as specified and directeed.

Supply and Fixing in repairs of male/moving contact/ rotating blade of HDE copper silver plated of Air Brake, off load isolator switch, rotating type, 33 KV, 1250/800 Amps capacity with all fixing nuts, bolts etc complete all as specified and directed.

Supplying and Fixing in repairs, Fixed Contacts, made of HDE copper, silver plated, of Air Brake, off load isolator switch, rotating type, 33 KV, 1250/800 Amps capacity with all fixing nuts, bolts etc. complete all as specified and directed.

Supplying and fixing of terminal pad for Air Brake, off load isolator switch, rotating type, 33 KV, 1250/800 Amps capacity complete all as specified and directed.

Supplying and fixing of arching horn for Air Brake, off load isolator switch, rotating type, 33 KV, 1250/800 Amps capacity complete all as specified and directed.

Supply and fixing in replacement, Silica Gel Breather assembly incl Silica Gel as existing ,suitable for power transformers of cap upto 6 MVA complete all as specified and directed.

Supplying and Fixing in replacement, PG clamps aluminium cast alloy suitable for existing ACSR conductor of type Zebra/Dog/Goat/Panther /Wolf for 33 KV yard/33 KV towers with GI nuts, boits etc complete all as specified and directed.

Supply and fixing in replacement of T-connector clamps, aluminium cast alloy suitable for existing ACSR conductor of type Zebra/Dog/ Goat/Panther/Wolf for 33 KV yard with GI nuts bolts complete all as specifed and directed.

Supply and fixing in replacement of CT/PT/Isolator /circuit breaker clamps aluminium cast alloy for both terminals suitable for ACSR conductor of type Zebra/Dog/Goat/Panther/Wolf for 33 KV yard with GI nuts bolts complete all specified and directed.

Supply and fixing in replacement of dead end clamps aluminium cast alloy for both terminals suitable for ACSR conductor of type Zebra/Dog/Goat/Panther/Wolf of 33 KV towers/yard with Ginuts bolts complete all as specified and directed.

Supply and fixing in replacement of Disc insulators with hardware fittings, 33 KV Grade for 33 KV yard complete all as specified and directed.

Supply and fixing in replacement of pin insulator with hardware fittings 33 KV grade complete all as specified and directed.

Supply and fixing for replacement of aluminium jumper of length upto 2.5 mtr made of ACSR conductor of type Zebra/Dog/Goat/Panther /Wolf conductor of 33 KV towers/ yard complete all as specified and directed.

Supply and fixing in replacement of damage triple tension disc insulators not less than 160 KN and hardware fitting and fixing in position including tighetning of bolts & nuts, complete after dismentling and lowering of damage conductor/disc insulator by taking tension of conductor on a separate arragement including opening & provinding of jumpers of 33 KV tension towers.

Trimming and cutting of tree branches (not more than 50 mm girth) coming across 33 KV HT over head line clearing the line around 2m single/both sides and disposal of branches from site not less than 250m from site complete all as specified and directed. Note :- (i) Length of span is approx 200 to 225 RM. (ii) Due care is to be given while trimming/cutting the tree branches that there should no damage to over head line conductor/pole. In case due to any negligence, damage is caused to be make good/ renewal by the contractor from his own resources and nothing extra is admissible. (iii) All safety to labourer must be adhered by the contractor during trimming and cutting of tree branches. (iv) The above quoted rate is included for T & P, hydaulic machine etc.

M&L for minor repairing of 33/11 KV power transformer capacity from 2.5 MVA to 6.0 MVA at site by disconnecting primary and secondary side electrical connection including rectification of leakage problem of any type, replacement of bush insulators, gaskets/packings after opening of top cover of transformer, required nuts, bolt and washers and radiator brazing work etc and reconnection of all electrical connection including replacement of cable gland of suitable size required complete all as specified and directed by Engr-in-Charge. Note: (i) The cost of minor spare parts e.g. gaskets/packing, nut-bolts-washers, lugs, neoprene rubber, ACSR jumper, etc. are deemed to be included in quoted rate. (ii) The cost fabricated copper strip/bus bar to connect secondary side bushing will be measured and paid separately. (iii) The cost of required T&P is deemed to be included in rate quoted by the contractor.

M&L for replacement of HT 33/11 KV transformer primary side bush insulator suitable for power transformer of any type Up to 6 MVA complete all as specified and directed by Engr-in-Charge.

M&L for replacement of HT 33/11 KV transformer secondary side bush insulator suitable for power transformer of any type Up to 6 MVA complete all as specified and directed by Engr-in-Charge.

M&L for replacement of HT 33/11 KV transformer primary side bush rod of brass with nut bolt, rubber packing and washer suitable for power transformer of any type Up to 6 MVA complete all as specified and directed by Engr-in-Charge.

M&L for replacement of HT 33/11 KV transformer secondary side bush rod of brass with nut bolt, rubber packing and washer suitable for power transformer of any type Up to 6 MVA complete all as specified and directed by Engr-in-Charge.

Supply and fixing in replacement for Danger Notice plate of 1.6 mm thick mild steel sheet, vitreous enamelled white , with letters, figures and conventional skull and bobes in signal red colour and fixed with MS clamps, bolts and nuts of approved size, for HT 33 KV, 25cm x 20 cm size including taking down old one complete all as specified and directed.

Material and labour for HT 11 KV (Earthed) grade heat shrinkable end termination jointing kit outdoor type complete with jointing material and accessories suitable for XLPE armoured aluminium conductor cable of size 120 to 185 sqmm 3 core complete all as specified and as directed.

Material and labour for HT 11 KV (Earthed) grade heat shrinkable straight through jointing kit outdoor type complete with jointing material and accessories suitable for XLPE armoured aluminium conductor cable of size 120 to 185 sqmm 3 core complete all as specified and as directed.

M/S Lucky Builders (BID ID -3452875)

commercial enterprises (BID ID -3452278)

PERFECT BUILDERS AND SUPPLIERS (BID ID -3451304)

B&B Electricals (BID ID -3449867)