Maintenance contract for substation HT/LT switchgear panels, attending cable breakdown and associated works, rewinding/repairing of 1-ph/3-ph motors under DCSEM Mumbai

Amount

PART A : Preventive maintenance

PART B : Supply of spares

PART C : Earthing system

PART D:Job works

PART E : Job works :

Description of Work / Item(s)

Amount

Preventive maintenance of Substation equipments as per tender specifications including taking shutdown with necessary work permit issued by shift in charge and giving line clearence certificate, submission of maintenance report, supply of all the required materials like panel locks,gaskets,void filling silicon paste,consumables,tools & testing equipement,ladders etc. required for maintenance and as instructed by E.I.C (Note:- Preventive maintenance shall be done twice during contract period).

11kV MOCB ( M/s Eswaran make) . Note:- Total number of MOCB - 4 nos.

11kV VCB HWX panel with VCB of M/s Schneider Electric(Areva) make. Note:- Total number of VCB - 5 nos.

11kV,3-way oil filled RMU with HRC fuse unit/breaker.Note:- Total number of RMU - 2 nos.

Substation LT switchgear panels consisting of Main LT panel ,Battery charger & APFC panels

Testing of protection relays

Testing and Recalibration of over current, earth fault, under voltage and other protective relays of English Electric make -type-CDG-31/CDAG-53/CDG-53/CAG-14 numeric relay of M/s Ashida make/DPX/Micom P127 rlays installed in HT panels/LT panels/DG sets by secondary injection method to ascertain the healthiness of the relays in confirmation with the designed characteristics as per I.S standard and electricity code of practice, including the recalibration in case any deference in timing & load characteristics beyond the permissible limit to the maximum extend possible and as instructed by E.I.C

Testing of protection microprocessor based relases Micrologic 6E/6P/6A/MTX3.0/SR18 electronic release of ACBs/MCCB with test kits of respective manufacturers at site and submit the test reports as instructed by EIC

Breakdown maintenance of following distribution substation equipments shall be attended immedialty but not later than 01day including testing of circuit breaker contact resistance,HV test and opening and closing time etc. as instructed by EIC

11kV,RMU(RM6/FBX) of M/s Schneider Electric Make

1600A/2000A/4000A LT ACB (M-PACT series of M/s EE /U-power of L&T/NW of M/s Schneider Electric)

11kV MOCB ( M/s Eswaran make)

11kV VCB (HWX) M/s.Schnider Electric(Areva)make

Breakdown maintenance of battery charger of M/s Chabbi Electric Make/Universal make/Antronix make including supply required HRC fuses,contactors,indiaction lamps,annuciation windows etc. and as instrcuted by EIC

Transformer repair works

Arresting of minor oil leakages:Arresting of oil leakage by replacement of gaskets of transformer main tank cover, HT disconnection chamber, HT/LT terminal box covers, buccholz relay, valves, tap changers as required including replacement of faulty bushings if required with new HT/LT bushings of transformer capacities ranging from 250kVA to 1250kVA with necessary oil seals, gaskets, etc. replacement of oil seals of HT/LT bushings of transformers of capacities ranging from 250kVA to 1250kVA. Supply of material required for arresting oil leakage is included in the scope of work. No material will be supplied by dept. Note: i)Bushings required for attending will be separately paid. ii)The work done shall be guaranteed for a period of one year.

Replacement of gaskets of transfromer tank,radiator flanges,Bucholz relays,conservator,neutral bushing on tank,LV bushings,HV bushing with required thickness of good quality cock sheets, oil seals,rubber gaskets etc. including lowering of transformer oil into empty oil durms, refilling same after replacment of gaskets etc., replacement of faulty parts like glass indiactor on conservator,diaphragm of explosion vent,damaged check nuts of bushing if required,welding of flanges,joints of connecting MS pipes as required and as instructed by EIC i)Scope of work also includes providing torpolin sheet on whole area of transfomer yard. ii)Lifting of tranformer cover with hydralic lifter as required iii) Experienced technicians and service Engineer shall be deputed for the work. iv) The scope of the work also icludes supply of the materail required except bushing/radiators

Transformer oil related works

DGA test of transformer oil at any NABL accredited lab including sample collection from site and submission of test report all as per instruction of EIC.

Physical properties test of transformer oil at any NABL accredited lab including sample collection from site and submission of test report all as per instruction of EIC.

Online filtration of transformer oil of various size of transformers through streameline high vaccum filtering machine till the dielectric strength and other values in accordance with latest I.S specification are achieved, transportation of filtering machine from one place to another in Anushaktinagar, New Mandala colonies & OYC building,Colaba all as directed by the Engineer in-charge.

Supply of I.S specified fresh transformer oil with seal. The scope also include of transportation of oil from one place to another including topping of oil in transformer at Anushaktinagar & New Mandala colony all as instructed by the Engineer in-charge.

Description of Work / Item(s)

Amount

RMUs (FBX/RM6/MOCB of Ms Schneider Electric/Areva/MS.Eshwaran make)

110V,DC, shunt trip coil

48V,DC,shunt trip coil

Ashida numeric relay ADR241S

VAJH13,110-130V/48-50V DC relay(master trip relay)of M/S Alstom make

ACB spares(NW series of M/s Schneirder)

110V,DC shunt trip coil

Sping charging motor(230V,AC)

Release for Ms/ Schneider Electric make ACB Micrologic 6E

Transfromers

1kg breathers for transformers with required coupler

Silica gel

Radiator for transformer upto 1250kVA capacity

APFC spares

25kVAR,MPP,heavy duty,3ph,440V,50HZ cylindrilcal type capacitor similar to VarPlus Can (H Duty) 440V Range of M/s Schnedier make

OFF delay timer 0-60sec

Capacitor duty contactor for 25kVAR with side add on block ( 1NO+ 1 NOC) similar to M/s Schneider make

Capacitor duty contactor for 60kVAR with side add on block ( 1NO+ 2 NC) similar to M/s Schneider make

Panel accessories

25A, 2NO+2NC,TNC switch

48V,DC/110V,DC/230V,AC LED indication lamp(green/red/Yellow/amber)

48V,DC/110V,DC/230V,AC LED indication lamp(White/Blue)

Battery charger spares

Digital Volt meter AC(48 X96/96X96)

Digital Volt meter DC (48 X96/96X96)

Digital Ammeter AC(48 X96/96X96)

Digital Ammeter DC(48 X96/96X96)

110V battery charger UIP make

Announciation window (Red Lens 24V DC)

Relay electronic type, 3C/O, 240 V AC coil with socket(R-OVR)

Relay Electronic type, 3C/O , 24V DC coil with socket(R-UVR)

SCR controller

SSA-3 (snubber ckt)

Pulse transformer Ckt (PTC)

Under voltage Ckt(DC UV)

Auto float boast Ckt(BR41)

Fuse monitor (FM)

Single phase preventor

Current transducer I/P: 0-75mV, O/P: 0-10V DC, Aux. supply.230V AC

Power supply, SMPS, IP: 90-270V AC/DC, O/P=24V, 2.5A (PS-41)

SMPS, I/P:24V DC, O/P=19-0-19V(PS-42)

Timer (TM-21) (24hrs. Coil supply:240VAC/DC

Buck regulator, I/P:160V DC to110V DC, O/P:110V/10A

48V battery charger UIP make

Announciation window (Red Lens 24V DC)

Realay electronic type, 3C/O, 240 V AC coil with socket

Relay Electronic type, 3C/O , 24V DC coil with socket

SCR controller

SSA-3 (snubber ckt)

Pulse transformer Ckt (PTC)

Under voltage Ckt(DC UV)

Auto float boast Ckt(BR41)

Earth fault relay Ckt.(ELR-41)

Fuse monitor (FM)

Single phase preventor

Power supply, SMPS, IP: 90-270V AC/DC, O/P=24V, 2.5A (PS-41)

SMPS, I/P:24V DC, O/P=19-0-19V(PS-42)

Timer (TM-21) (24hrs. Coil supply:240VAC/DC

Buck regulator, I/P:66V DC to 48V DC, O/P:48V/10A

Safety gears

LV hand gloves of M/s Raychem make or equivalnet for working voltage 440V

HV hand gloves of M/s Raychem make or equivalnet make for working volatges upto 11kV

Supply of Mutli functional meter similar CONZERV EM6436H with Class accuracy 1.0, 01 RS485 port of M/s Schneider make

Description of Work / Item(s)

Amount

Supply, installation, testing and commissioning of earth station with heavy dipped GI earth plates electrode 600 x 600 x6.0 mm in size at the depth minimum of 2.5 m below ground level (bottom of Plate) confirming to IS 3043 complete withall required materials like coke / charcoal, salt, G.I nut bolts, washers, 19 mm dia GI pipe (B class), 150 mm thick concrete wall chamber of suitable size duly plastered, heavy duty (minimum 6 mm thick) M.S chequred plate cover associated materials like 40 x 40 x 5 mm angle iron frame work, hinged locking arrangements, complete with funnels, GI test links (50 x 6 mm), two runs of 25 x 6mm G.I strips for connecting G.I plate & test link etc. including excavation of ground in all types of soils, refilling & removal of excess earth within a radius of 3000 m etc. all as required as per thedrawing specifications & instructed by Engineer-in-charge. Note:- The chamber cover & frame shall be got approved by Department & painted with two coats of red oxide & one coat of enamel paint.

Supply, installation of heavy dipped following GI strip fixed to wall / slab / column / beam with 2mm thick GI saddle or in ground at a depth of 750 mm below ground level including excavation in all type of soil, refilling and removal of excess earth within a radius of 500 mtrs., temporary reinstatement and back filling of trench, interconnection of earth strip by welding,applying cold zinc spary, painting with two coats of black bituminous compound for earth strip in ground and green colour enamel painting strip on surface etc. all as required & instructed by the Engineer-in-charge

25X 6mm in ground

25X 6mm on Wall/coloum/beam/bus ducts

50 X 6mm in ground

50X 6mm on Wall/coloum/beam/bus ducts

Cutting of asphalt road / concrete flooring /drain by using hydraulic drilling machine as required and stacking of rocks, refilling and consolidation of the surface. Disposing the excess earth within a 3000 meter radius as directed by engineer-in-charge

Excavation in soft soil including shorting or dewatering, removing of bricks/tiles etc. refilling and consolidation of the surface, disposing the excess earth within a 3000 meter radius as directed by engineer-in- charge.

Providing Plain cement concrete 1:3:6 using graded stone aggregate of 20 mm maximum size including consolidation, stacking, soling, frame work, shuttering as required, finishing, curing etc. Complete all as directed by Engineer in charge. Complete all as per specification & as directed by EIC.

Fabrication,supply & installtion of MS chequred plate of 6mm thick including painting with two coats of red oxided paint etc as per the site requirement.

Fabrication,supply,fixing of MS angles/flats supprots of required sizes & as per site requirement including painting with 1 coat of systhetic enamel paint over two coats of red oxide pain including fixing with suitable size of anchor fastner/coach screws on wall/ceiling etc. for electrcal installtions/cables etc.

Fabrication,supply,fixing of MS enclsoure made up of MS CRCA sheet including providing hinges/covers/gaskets etc as required including metal treament ,powder coating and as instructed by E.I.C

Supply, installtion and termination of G.I wire of 8SWG/14SWG/16SWG along with existing cable. As per instruction of EIC

Providing earth pit chamber made up of 150 mm thick concrete wall chamber of suitable size duly plastered, heavy duty (minimum 6 mm thick) M.S chequred plate cover associated materials like 40 x 40 x 5 mm angle iron frame work, hinged locking arrangements etc. Scope of work also includes breaking of existing earth pit chamber and disposing of debries.

Filling up of trench with M-sand / stone dust all as required and instructed by Engineer in charge.

Providing M.S. aldrops of 250 mm long with necessary hardwares by drilling & threading / welding in LT panel room / electric shaft doors including painting of welded area with red oxide paint to avoid corrosion in Malayagiri & Udayagiri buildings at Anushaktinagar all as per instruction of Engineer – in – Charge.

Replacement of door hinges set(02nos) in MDB/LT panel/feeder piller/LT cable chamber covers with necessary drilling/threading with tap/ welding, etc. all as per instruction of Engineer in-charge.

Measurement of earth pit resistance with earth resistance tester and letter painting of measured value with date and name of earth pit on the cover including painting of earthpit chamber all as per the instruction of EIC.

Description of Work / Item(s)

Amount

Cable fault finding :-Testing and pinpointing the location of L.T cable fault of various sizes irrespective length of cable laid in ground, tracing of cable route by thumping / acoustic, magnetic waves searching method or any other advance method whichever is suitable to locate all types of cable faults including open circuit faults and including disconnection of the cable terminations and re-connection of the as required and as instructed by Engineer in-charge. Note:- If there are multiple cable faults on one cable i.e. more than one cable faults, the agency has to locate all the cable faults. However in this case the quantity will be considered as 2 nos only.

Supply of LT cable straight through joint kits of following sizes similar to tubular sleeve version (EPKJ series) type of M/s. Raychem make with heavy duty copper ferrule for 1.1kV XLPE/PVC insulated armoured Aluminum conductor cables and as per instruction of EIC.

4Cx10/16 sq.mm

3.5C x 25-50 Sq.mm

3.5C x70-150 sq.mm

3.5C x 240-300 sq.mm

Making of LT straight through jointing of the following sizes of cables by using dept. supplied cable joint kits/ supplied against item no.2.1 by authorized cable jointer of jointing kit manufacturer including cutting of existing faulty cable as required,preparation for of the cable for jointing, deposing of waste materials, depositing of remaning cut portion of cable if any at DCS&EM stores at Anushaktinagar. Scope of work also includes pulling the cable, laying the cable in the trenches as required for making jointing/termination. Pl. note that the cable pieces required for cable jointing will be supplied by Dept. at DCSEM store,Anushaktinagar

4/3 ½ C X 185 sq.mm to 300 sq.mm

4/3 ½ C X 10 sq.mm to 150 sq.mm

Making of 3.5C x 240-300 sq.mm 11kV(E) XLPE/PILCA end termination with dept. supplied kits by authorized cable jointer of jointing kit manufacurer including cutting of existing faulty cable as required,preparation of the cable for jointing, deposing of waste materials, including supply consumable for making cable jointing,glow lamp for heat shrinking of the jointing materails,lead strips for jointing PILCA cable etc, depositing of remaning cut portion of cable if any at DCS&EM stores at Anushaktinagar. Scope of work also includes pulling the cable, laying the cable in the trenches as required for making termination.

LT cable end termination:Providing cable end termination of 1.1kV XLPE/PVC insulated armoured Aluminium conductor cables with solderless heavy duty tinned copper lugs, heavy duty brass cable gland with brass washers, insulation tape, duplicate earthing for cable gland with suitable earthing tags, cable identifications tag etc. as per relevant IS specification and as per instruction of Engineer in-charge.

4Cx10/16 sq.mm cable

4C x 25sq.mm cable

3.5C x 35sq.mm cable

3.5C x 50sq.mm cable

3.5C x 70sq.mm cable

3.5C x 95sq.mm cable

3.5C x 150sq.mm cable

3.5C x 185sq.mm cable

3.5C x 240sq.mm cable

3.5C x 300sq.mm cable

Laying of department supplied cable: Installation, testing & commissioning of dept. supplied 1100 V grade PVC/XLPE insulated, tapped PVC inner sheath and extruded PVC outer sheath, armoured Aluminium/copper conductor power cables of different sizes ranging from 3.5C X 25 Sq.mm to 3.5C X 300 Sq.mm , fixed on wall / column / slab with 4mm thick heavy dip galvanized GI spacer and 16swg thick hot dipped GI saddles fixed at a interval of 400mm using nylon rawal plug, 10 X 35 mm GI wooden screw etc. with suitable anchor fastener with 16swg GI saddle/in existing hume pipes 900 mm below ground level/ in ground at a depth of 900 mm below ground level including excavation in all type of soils excluding hard rock , sand bedding, laying of backed bricks(20 no.s per meter) as per IS on side & top, temporary reinstatement, back filling, dewatering if necessary, disposal of excess earth within the radius of 500 m etc. all as required & instructed by the Engineer-in-charge. (Note: Payment for excavation of hard rock will be made seperately as per item No.9 of Part:D)

3.5C X25 to 70sq.mm in ground

3.5C 95 to 300 Sq.mm in ground

3.5C X25 to 50sq.mm on wall

3.5C X70 to 150sq.mm on wall

3.5C X185 to 300sq.mm on wall

Sealing of existing Hume pipes of 100 to 150mm dia to restrict water entry to lift pit using following steps:. 1. De-watering of water from lift pit 2. Chipping of the loose part of the surface around the hume pipe and make it as original using rich mortar or special repair material micro concrete. 3. Packing the pipe with appropriate material to restrict the flow of micro concrete inside the pipe. 4. Providing a layer of non washing type chemical agent. 5. Grout/seal the pipe with special repair material Micro concrete for a minimum depth of 300mm. 6. Seal the surface with polysulphide sealant. 7. Plaster the surface with surrounding with 25mm thick Ready mix mortar (Area : 450 mm X 450 mm) all are as per the instruction of Engineer in charge.

Excavating in hard rock including shorting or dewatering, removing of bricks/tiles etc. refilling and consolidation of the surface. Disposing the excess earth within a 3000 meter radius as directed by engineer-in- charge.

Description of Work / Item(s)

Amount

Rewinding of the following 3-phase/1-phase,415V/240V,50Hz, squirrel cage induction motors with enameled copper coil/conductor, including providing ‘F’ Class insulation, varnishing, forming of end connections, silver brazing of series joints etc., spraying the rewound stator with Class ‘F’ resin, varnish, curing & spraying the stator with final coat of ‘F’ insulation, moisture protection and finally coated with anti tracking and anti acid finishing & varnishing and applying gel coating etc. including metalizing of end shield, machining,replacement of bearings, terminal plate etc. and complete dismantling of motor, stator rewinding, etc. transportation of motor from site to work shop and back after repairing including loading and unloading the motor at site and workshop, installation, alignment, testing, commissioning all as directed to the satisfaction of Engineer-in-charge, conducting following test in presence of Deptt. Engineer at factory etc. complete. & submitting test certificate all as directed by the Engineer-in-charge. 1. Insulation resistance test. 2. Measurement of resistance of motor winding. 3. No load test. 4. Reduced voltage running up test. 5. High voltage test. Note: i)Upto 20HP rating motors also consists of submersible type motor,hence water seals gaskets and other required materials for rewinding of submersible motors shall be considered in the scope of work. ii) Dismantled copper shall be taken away by contractor and hence suitable credit for taking of dismantled scrap copper winding shall be included in the quoted rates. iii)The motor to be decopuled from pump,transport from site to the workshop and back to site and installed in position at the risk and cost of contractor. iv) Rewinded motor shall be guaranteed for a period of 06 months from date of delivery motor and defects shall rectified free of cost.

Upto 2HP

Above 2HP and upto 5HP

Above 5HP to 10HP

above 10HP and upto 25HP

Above 25HP and upto 50HP

Above 50HP and upto 80HP

Above 80HP and upto 150HP

Repairing,brazing of copper winding terminal and connecting to terminal plate at site including disconneting and connecting terminal plate of 3-phase squirrel cage induction motor of rating from 15HP to 150HP as instructed by E.I.C

Supply and fixing of terminal plate with brass studs of suitable size including dismantling and connecting terminal plates as required for 3-phase squirrel cage induction motor of rating from 15HP to 150HP as instructed by E.I.C

Supply and fixing of end covers of suitable size including dismantling and connecting as required for 3-phase squirrel cage induction motor of rating from 15HP to 150HP as instructed by E.I.C