REPAIR/REPLACEMENT OF HT/LT DISTRIBUTION SYSTEM , MAINT OF DG SETS AND OTHER CONNECTED WORKD IN MWC,TPW, SMHQ, FLEET OFFICE AT NAVAL DOCKYARD UNDER AGE E/M-I OF GE (U-I) VISAKHAPATNAM

Amount

Excavation in trenches in Soft/loose soil n. exc. 1.5 M wide and n. exc. 1.5 Mts in depth for laying of cables poles stay, and getting out complete all as specified and directed.

Returning filling in including spreading, watering and well ramming in layers n.exc. 25 cm thick after the cable are laid.

Removal of surplus soil to a distance n. exc. 50 Mtrs and depositing where directed at a level n.exc. 1.5 Mtr above the starting point.

Supply and spreading clean dry sand (unwashed) in trenches around the cable for cushioning all as specified.

Supply and laying sub class 'B' bricks of old size (23x11x7.5 cm) laid along alignment of cable as protection to cable in trenches complete all as specified and directed by Engineer-in-Charge

Supply and laying un-reinforced precast concrete cable cover, class HVP, type 1 with peak, size 300mm x 180mm x 40mmHV class with 'ELECTRIC' embossed on the top side in trenches along the electric cable as protection all complete as specified and directed.

M&L for GI pipe light grade of following dia laid along road crossings / plinth protection with suitable fittings for cable protection or fixed to the pole/ Wall complete all as specified and directed by Engineer-in-Charge . Make : Surya Roshni Ltd / Tata / Jindal steel / Prakash

50mm bore

80mm bore

100 mm bore

Disconnection of electric connection from feeder pillar box, dressing of cable including replacement of burnt out aluminium lugs and fixing with new lugs, nuts bolt etc complete including necessary wiring of feeder pillar box with copper conductor cable , excavation & earth work all as directed by Engr -in Charge. Note :- Replacement of unserviceable parts if any will be measured and paid sepertely under item No 9.

Supply and replacement of unserviceable following parts ( Compatible for the pillar box under sl item No 8 ) :

(a) MCCB 3 Pole, 415 V, fixed type, 63 Amps with breaking capacity 16 KA Make : L & T / Siemens / Schneider / Legrand / ABB / Havells

(b) MCCB 3 Pole, 415 V, fixed type, 125 Amps with breaking capacity 16 KA Make : L & T / Siemens / Schneider / Legrand / ABB / Havells

(c) MCCB 3 Pole, 415 V, Adjustable type, 200 Amps with breaking capacity 36 KA Make : L & T / Siemens / Schneider / Legrand / ABB / Havells

(d) MCCB 3 Pole, 415 V, Adjustable type, 250 Amps with breaking capacity 36 KA Make : L & T / Siemens / Schneider / Legrand / ABB / Havells

(e) MCCB 3 Pole, 415 V, Adjustable type, 400 Amps with breaking capacity 36 KA Make : L & T / Siemens / Schneider / Legrand / ABB / Havells

(f) MCCB 4 Pole, 415 V, Adjustable type, 200 Amps with breaking capacity 36 KA Make : L & T / Siemens / Schneider / Legrand / ABB / Havells

(g) MCCB 4 Pole, 415 V, Adjustable type, 250 Amps with breaking capacity 36 KA Make : L & T / Siemens / Schneider / Legrand / ABB / Havells

(h) MCCB 4 Pole, 415 V, Adjustable type, 400 Amps with breaking capacity 36 KA Make : L & T / Siemens / Schneider / Legrand / ABB / Havells

(i) Aluminium bus bar 400 Amp complete suitable for 3 phase 4 wire system of length 0.65 Mtr

(j) Aluminium bus bar 315 Amp complete suitable for 3 phase 4 wire system length 0.65 Mtr.

(k) Aluminium lugs of size 16 Sqmm to 25 sqmm

(m) Aluminium lugs of size 70 Sqmm to 95 sqmm

(n) Aluminium lugs of size 120 Sqmm

(o) Aluminium lugs of size 150 Sqmm

(r) Aluminium lugs of size 240 Sqmm

(s) Aluminium lugs of size 300 Sqmm

(t) Aluminium lugs of size 400 Sqmm

(v) Aluminium bus bar 800 Amp complete suitable for 3 phase 4 wire system of length 1 Mtr

(z) LED phase Indicator lamp assy RYB - 01 Set.

(aa) Wiring with single core 1100 Volts grade PVC insulated copper conductor cable of suitable size from bus bar to out going .

Supply & replace CT 200 - / 5A 433 volt for ammeter MAKE : AE / IMP / MECO / MEI / HPL

Danger notice plate of 1.6mm thick mild steel sheet, vitreous enamelled white, with letters, figures and conventional skull and bones in signal red colour and fixed with M.S. clamps, bolts and nuts of approved size, for LT, 20x15cm size complete all as specified and directed.

Supply, Laying, jointing and testing of underground LT cables XLPE insulated, PVC sheathed aluminium conductors multistranded armoured heavy duty 1100 Volt grade cross sectional area 16 Sq mm 4 core laid in trenches/ducts/along poles/through pipe under road etc with new aluminium lugs of cable size all as specified and directed including taking down old U/S cables. MAKE: Havells / Gloster / KEI Industries Ltd / Polycab / Asian Cables / Finolex [Note: The rate quoted shall inclusive of termination at ends with suitable aluminium lugs where required]

All as per item No 12 above but size 50 Sq mm 3.5 Core.

All as per item No 12 above but size 70 Sq mm 3.5 Core.

All as per item No 12 above but size 95 Sq mm 3.5 Core.

All as per item No 12 above but size 120 Sq mm 3.5 Core.

All as per item No 12 above but size 240 Sq mm 3.5 Core.

All as per item No 12above but size 400 Sq mm 3.5 Core.

Supply, fixing and testing straight through joint heat shrinkable type with jointing kit suitable for cable XLPE insulated armoured heavy duty aluminium conductor 1100 Volts grade and including taking out cable from faulty portion in any situation/position complete all as directed for the following sizes :- Make: 3M / Denson / M-Seal / Raychem

(a) 3.5/4 core 16 sqmm

(b) 3.5/4 core 50 sqmm

(c) 3.5/4 core 70 sqmm

(d) 3.5 core 95 sqmm

(e) 3.5 core 120 sqmm to 150 sq mm

(g) 3.5 core 240 /300sqmm

M&L for Earthing complete with glavanised iron or steel earth plate electrod 60 cm x 60 cms x 6.0 mm thick burried directly in ground surrounded by charcoal or coke and salt (earth pit not less than 2.25 metre deep below ground level) with top edge of earth plate at a depth of not less than 1.5 metre below ground level connected to GI or steel earth wire 4mm dia by means of nuts, bolts, check nuts & washers, protected by GI pipe 15mm bore (light grade) and connected to maint switch board or main control board complete includind taking down old earthing all as specified and indicated in electrical plate No 3 of SSR-1991 Part-I including testing on completion.

Dismantling rusted/defective LT panel doors/canopy / angle iron supports of any size and M&L for fixing new LT panel doors of size all as per existing with 2 mm / 3.15 mm thickness MS sheet, hinges, locking arrangement, angle iron supports of any size etc complete including replacement of neoprene gasket and painting with a coat of of red oxide primer complete all as directed by Engr-in-Charge

M&L for 2mm thick fibre reinforced plastic coating with epoxy paint coat of approved color on the surface of panel board, RMUs after cleaning the surfaces thoroughly all as directed & specified.

M&L for Panting of LT Panels and fedder pillar boxes with epoxy paint coat of approved color on the surface of panel board, feeder pillar boxes,RMUs after cleaning the surfaces thoroughly by using spray gun all as directed & specified.

Dismantling Existing earthing and providing new maintenance free Chemical earthing complete with 40mm x 3000mm Advance Chemical Earthing Pipe with (Strip in Pipe Technology) with 50 Kgs of Back Fill Compound buried directly in ground (Rocky soil) with earth pit not less than 2.5 Mtr deep below the normal ground level with top edge of plate not less than 1.5 Mtr below normal GL connected to Copper strip 25x6mm as earth strip by means of SS bolts,nuts,check nuts and washers all as per IS 3043-1987 all as specified or indicated including testing on completion and as directed. The earth resistance shall be measured using fall of potential method as per para 37 of IS:3043 & Combined resistance should be less than 1 Ohms. (Note:-The unit rate shall be deemed to include for Excavation & earth work in any type of soil,PCC (1:3:6) type Chamber,RCC 1:2:4 type B-1 cover 50 mm thick reinforced with 8mm dia CTD bars@75mm c/c both ways ,MS handle 12mm dia and funnel.

Construction of ring earth by providing multiple earth pits i) Wherever it is not possible to achieve required earth resistance with one earth electrode/pit due to difficult/rocky soil conditions, provision of ring earth consisting of more than one earth pit shall be done. The number of pits required shall be decided based on the resistance achieved for the earth pits already installed. The procedure mentioned above for one earth pit shall be repeated for other earth pits. ii) The distance between two successive earth electrodes shall be min. 3 mtrs / length of electrode which ever is higher. and max. up to twice the length of the earth electrode. iii) These earth pits shall then be inter linked using 25X6 mm Copper strip to form a loop preferably using exothermic welding or with the help of at least two number of stainless steel nut bolts of appropriate size. iv) The interconnecting strip shall be buried no less than 600mm (0.6m) below the ground level. This interconnecting strip shall also be covered with earth enhancing compound.

Cutting the tarmac / hard standings of sizes 20 cm x 30 cm and excavating in trenches across the road for laying cable including making good the excavated portion by means of PCC 1:3:6, type C1 matching with the surroundings all as directed.

Boring of holes underneath road / foot path / hardstanding / culvert etc by using trencless technology by ultra sound technic and necessary machinery including providing 100mm dia GI pipe medium grade for drawing cables complete all as specified and directed.

Supply, lay, connect, test and commission multi core copper conductor cables, PVC insulated LT 1100 volts grade GI strip/wire armoured in ducts/on structures including clamps, terminations on both ends with glands and connecting up to the equipment all as specified and of following sizes complete all as specified and directed:- MAKE: Havells / Gloster / KEI Industries Ltd / Polycab / Asian Cables / Finolex

a) 3 Core 16 sqmm

Material and labour for provision of earthmat laid in trenches/ducts/walls/Roof Top made of following sizes of GI strips including jointing by means of riveting and brazing complete as required and directed.

G I strip of size 25 x 6 mm

Material and labour for provision of earthmat laid in trenches/ducts/walls/Roof Top made of following sizes of Copper strips including jointing by means of riveting and brazing complete as required and directed.

a) Copper strip of size 25 x 6 mm

M & L for welding of MS metal surfaces of LT panel boards and other equipments as required at site all complete as specified and directed. Note : contractor has to arrnage welding equipments, rods, necessary cabling arrangments at site at their own cost.

M & L for replacing rolled MS chequered Plates Fe 410 -W (GdeE- 250) quality A cut in rectangular shape as per site requirements for covering cable drains all complete as specified and directed.

S & replace vinyl print of Electrical diagram/Do's and Donts, or any other info for display as required of size 4 ft x 6 ft along with PVC border frame with provision for hanging on wall all complete as specified and directed

S & replace display box type sign boards of size not less than 4ft x 3 ft made from acrylic /PVC material with illuminated internally by bulb/tubelights complete all as specified and directed.

S & replace LED tube light 20 Watt with in-built inverter system to provide standby lighting during power failure, AC, 240V, 50Hz complete all as specified and directed.

S & replace Electrical Sealant Putty is a non setting sealant putty for packing out cable boxes to prevent the ingress of moisture, sealing around cable runs, blocking holes all as specified and directed.

S & replace MCCB Spreader Links of Size: 40-100mm , 100 Amps to 630 Amps as per site requirements all as specifeid and directed.

M & L for carrying out following Repairs, Overhauling, Servicing, Preventive Maintenance HT Switchgear Vacuum Circuit Breaker of capacity 12KV /11 KV 250 / 350 MVA and refixing the same after Repairs / Overhauling complete all as specified and as directed: [a] Tripping off the breaker, lowering the breaker with raising / lowering handle and pulling out the breaker complete from the panel along with the trolley for servicing / inspection / overhauling. [b] Servicing / Inspecting / checking of Automatic Safety Shutter operation for serviceability and replacement of spares if required. [c] Servicing / Inspecting / checking of circuit spout and circuit spout connections for RYB Phases and replacement of spares if required. [d] Dismantling and checking of Crossbar Assembly, fixed contacts and current carrying parts of the breaker, trolley, insulated assembly and checking lamination with clamps, epoxy spout, isolator assembly etc. [e] Setting, reassembling, cleaning, adjustment of fixed contacts, main contact, arcing contacts and chamber baffle pot assembly, moving contact for proper setting of auxiliary contacts operating mechanism.

[f] Servicing / Inspecting / checking of Secondary Sockets / Busbar Earthing Plugs / Earthing Sockets and replacement of spares if required. [g] Checking, setting and adjustment of lowering and raising operation of the Breaker Trolley. [h] Decarbonising of Busbar and connected items [i] Lubrication and greasing of all moving parts of the trolley, stopper bolt for proper operating and closing of shutter gear, isolation resistance of trolley of with vacuum interrupter assembly. [j] The inspection of HT switch gear shall involve Inspection of Truck & Hoist Assembly, Tank Assembly & Barriers, Assembly & components of Solenoid Assembly, Assembly & components of Dependent Mechanism, Assembly & components of Spring Box Mechanism, Motor Mechanism Spring Charge Assembly and Assembly of Trip Unit & related components

M & L for Maintenance, servicing, Buffing/cleaning, Electroplating of copper Busbar in busbar chamber of each VCB panel including connecting bus bar from CT to main Bus bar & spout. servicing of support insulator by clean cloth and hot air blower/vacuum cleaner, checking for any loose contact, refixing of all nuts & bolts by Stainless Steel , refixing all covers , replacement of defective bus spout complete all as specified and directed

M&L for applying Si-COAT 570 RTV Silicone High Voltage Insulator Coating solution using an GRACO Mark IV Airless Sprayer to the total VCB panel inside body along with busbars and re-connection of all existing cables, extended bus bars, testing complete all as specified and directed. Make:- CSL Silicones Inc. Canada

S & F in repairs Space Heater in HT VCB, 11 KV suitable for operation on 220 Volts, AC Supply complete with necessary wiring and control cable with Toggle Switch complete all as specified and as directed.

S & F in repairs Digital Temperature Indicator along with suitable Thermostat complete all as specified and as directed.

Supply & instalation LT panel of size 1.5 x 1.2 x 0.4 mtr (minimum), made out of 3.15 mm thick CRCA sheet including framing of angle iron of size 50 x 50 x 6mm, outdoor compartmental type totally enclosed, factory made powder coated dust and vermin proof with front and rear opening double door with locking arrangement 415 volts 3 phase 4 wire AC 50 Hz having Aluminium bus bar of 300 Amps for phases and 150 Amps for neutral RYB insulated with PVC sleeves insulation mounted on porcelain insulator and excavation work of incoming / outgoing cables (including sand, bricks etc.) and panel foundation, PCC pillar 02 Nos with PCC 1:3:6, minimum 300mm under ground and 450mm over the normal ground level including MC 75 MS Channel frame medium grade at bottom of panel with 4 Nos bolts 200mm long of 16mm dia grouted in PCC pillar to tighten the panel or as

M & L for Checking electrical LT distribution panel boards for loose electrical connection, and tighten them properly,replace damaged nuts, washers, bolts as required, clean the inside of the panel board of debris, dust, and any other external particles, remove vegetations, applying putty or electrical sealant to block any gap at cable entry if any completely to the satisfaction of Engr-in-charge all as specified and directed.

S & F R-Y-B LED lamps 240V, AC operation after removing the old u/s lamp all complete as specified and directed.

Supply only industrial grade CRC/CTC solution 500ml, aerosol spray bottle/cans for cleaning, degreasing, removing humidity and corrosion from machine surfaces, contacts, all as specified and directed.

M & L for painting to metal surfaces at various locations complete with 2 coats of synthetic enamel paint over a coat or red oxide primer after cleaning the old painted surface with scraping complete all as specified and directed

Supply & fix PVC electrical insulation tape roll 8 cm x 7 M x 0.125 mm, industrial grade ISI marked multicolor all complete as specified and directed.

Supply & fix high voltage HT electrical insulation tape, self bonding/fusing, industrial grade ISI marked of size 38 mm x 9.15 m x 0.75mm, operating temperature 90 degree celcius applicable for voltge upto 36KV, 9Mtr long roll all as specified and directed

Supply & replace CT 200 - / 5A 433 volt for ammeter MAKE : AE / IMP / MECO / MEI / HPL

Supply & Replace On Load Change over switch 400 Amps 4 Pole , 415 Volts, open construction/closed construction as required at site all complete as specified and driected. Make : Standard / Havells/ C&S /Indoasian /HPL / L&T

Supply & Replace On Load Change over switch 250 Amps 4 Pole, 415 Volts, , open construction/closed construction as required at site all complete as specified and driected. Make : Standard / Havells/C&S/Indoasian/HPL/L&T

M & L for shifting Transformer of capacity 250 KVA ~ 750 KVA from its position at any substation at various locaations inside Dockyard under AGE EM (U-I) No -I using cranes after disconnecting all the cables from HV/LV sides, securing the cable ends properly by insulating covering material, detaching all the earthing connections, transporting it to workshop for repair and transporting it back to the substation at Dockyard and re-instating the transformer including all the cable connection, earthing connection , after doing insulation resistance test and restoring the electric supply as before all complete as specified and directed.

M&L for Dehydration and Filtration of oil in transformers / Voltage stabilizers / Oil insulaed RMUs installed at various locations to achieve di-electric strength not less than 60 KV at 2.5mm gap as per relevant IS with portable dehydration cum filtration plant, testing of the oil for the di-electric strength before filtration and after filtration complete all as directed by the Engineer-in-Charge.

Supply and topping up of transformer oil with di-electric strength not less than 60 KV in to the conservator tank/ body tank of the transformer etc complete all as directed by the Engineer-in-Charge. Make: Power oil/ Transol /Savita Chemicals

Supply and replace silica Gel into breather of transformers complete all as directed

M & L for re-winding of HT 11/0.433 KV distribution transformer of capacity 200 ~ 750 KVA of any make by opening the Transformer core, HV windings, Insulating strips safely, inspecting the damaged winding , and re-winding the HV winding with new copper wires of same guagewith new DPC insulation to the copper conductor , heating the core chamber to a suitable operating temperature etc as directed by Engr-in-charge, and assembling the cores, windings etc in the transformer completely all complete as specified.

M & L for re-winding of HT 11/0.433 KV distribution transformer of capacity 200 ~ 750 KVA of any make by opening the Transformer core, LV windings, Insulating strips safely, inspecting the damaged winding , and re-winding the LV winding with new copper wires of same gauge with new DPC insulation to the copper conductor , heating the core chamber to a suitable operating temperature etc as directed by Engr-in-charge, and assembling the cores, windings etc in the transformer completely all complete as specified.

Supply and replace HT porcelain bushings for transformers of capacity 400 ~ 750 KVA all complete as specified and directed.

Supply and replace LT porcelain bushings for transformers of capacity 400 ~ 750 KVA all complete as specified and directed.

Supply and replace HV Gun metal stud for bushing in transformers of capacity 400 ~ 750 KVA all complete as specified and directed.

Supply and replace LV Gun metal stud for bushing in transformers of capacity 400 ~ 750 KVA all complete as specified and directed.

Supply and replace HT porcelain bushings for transformers of capacity 63 ~ 315 KVA all complete as specified and directed.

Supply and replace LT porcelain bushings for transformers of capacity 63 ~ 315 KVA all complete as specified and directed.

Supply and replace HV Gun metal stud for bushing in transformers of capacity 63 ~ 315 KVA all complete as specified and directed.

Supply and replace LV Gun metal stud for bushing in transformers of capacity 63 ~ 315 KVA all complete as specified and directed.

M & L for preparing old painted transformer surface with coarse cloth / wire brush, and spray painting transformer surface with synthetic enamel paint of smoke grey colour to a smooth finish appearance after applying one coat of zinc oxide primer for transformer capacity of 400 ~ 750 KVA as specified and directed

S & replace CT of 200-100/5-5 Amps ratio, 11 KV operation, resin cast type, single phase including, indoor application disconnecting the old/damaged ones at sites including changing relay settings according to the CTs all complete as specified and directed.

S & replace CT of 50-100/5 Amps ratio, 11 KV operation, resin cast type, single phase indoor application including disconnecting the old/damaged ones at site including changing replay settings according to the CTs all complete as specified and directed.

S&F insulated synthetic mat nominal 3.0 mm thick conforming to IS: 15652-2006,ISI marked suitable upto 33 KV colour Blue standard roll from 10m to minimum joints and width of each mat shall be 1.0 Mtr complete (1Mtrsx10Mtr) all as specified and directed by Engr-in-Charge ( MAKE:-PREMIERPOLYFILM Ltd/SUNTEX INSULATICA/DUNLOP).

Supply and replace Cable jointing kit for 11 KV (Earthed) grade cable for indoor termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 185 Sqmm all complete as specified and directed. Make : Raychem / Denson/ 3M

Supply and replace Cable jointing kit for 11 KV (Earthed) grade cable for outdoor termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 185 sqmm all complete as specifeid and directed. Make : Raychem / Denson/ 3M / M-Seal

Supply and replace Cable jointing kit for 11 KV (Earthed) grade cable for straight through heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 185 Sqmm all complete as specified and directed. Make : Raychem / Denson/ 3M / M-Seal

Supply and laying or fixing or passing through pipe or in cable ducts, 11000 volts grade XLPE(FRLS) insulated Heavy duty (earthed),screened, PVC bedded, galvanised steel strip or wire armoured, electric power cables (heavy duty) with aluminium conductor 185 sq mm 3 core size including dismantling old one complete all as specified and directed by Engineer-in-Charge. MAKE: Havells / Gloster / KEI Industries Ltd / Polycab / Asian Cables / Finolex

Supply, install, testing and comissioning of dry mainteance free batteries 12 V, 180 AH including copper terminal lugs complete and replace disconnecting old unserviceable 12V,180AH batteries with copper terminal lugs complete. Make: Exide/Tata green/Amron

Supply, install, testing and comissioning of dry mainteance free batteries 12 V, 180 AH including copper terminal lugs complete and replace disconnecting old unserviceable 12V,100AH batteries with copper terminal lugs complete. Make: Exide/Tata green/Amron

Material and labour for maintenance to 750 KVA Gen Set for 'B' check after 06 months or 250 hrs running, whichever is earlier as per the recommendations of manufacturer including renewing of necessary filters, Engine oil etc, complete all as per manufacturers instructional manual and all as directed by Engg-in-charge. Note : Engine oil will not be suplied under Sch 'B' for carrying out 'B' check.The quoted rate deemed to be included for the same.

All as per item No. 77 above but for 250 KVA DG Set

All as per item No. 77 above but for 62.5 KVA DG Set

Material and labour for replacement of air cleaner filter to 750 KVA Gen Set matching with existing and as per the recommendations of manufacturer all as directed by Engg-in-charge.

All as per item No. 80 above but for 62.5KVA/ 250 KVA DG Set

Supply only for top up engine oil 15W40 or as per manufacturers recommendations. Make: Servo/ Volvoline/HPCL

Supply and fixing of 250 KVA engine controllerwith consisiting of following parts including taking down old one:-

(a) Seep Sea (UK) controller -01 No

(b) AVR -01 No

(c ) Governor Cord -01 No

(d) HWT Sensor-01 No

(e) LLOP sensor-01 No

(f) Software updation with Laptop-01 Job

(g) Programming with laptop-01 Job

(h) Necessary auxiliary relays/relay cord -01 Job

(j) Necessary wiring modicfication,testing and commissioning-01 Job

M & L for replacement of complete fuel and lub oil hose pipe set with clamp / clip etc of the following capacity of DG sets:-

(a) 750 KVA DG Set

(b) 250 KVA DG Set

(c) 62.5 KVA DG Set

supply and fixing in repair Self Starter motor for 250/750 KVA KIRLOSKAR make matching with existing and as per the recommendations of manufacturer .

M&L for De-scaling of radiator by dismantling the upper & lower tank and cleaning the core pipes with cleaning chemicals, components and arrest the leaking core by brazing/ dummy with lead including cleaning of upper and lower tanks and replacing the upper and lower gaskets and required nuts, bolts, refixing the same including testing and painting complete all as specified and directed for the following capacities

250 KVA to 750 KVA DG set

62.5 KVA DG set

M&L for Maintenance and servicing of alternator of any Make of any capacity by opening the end cover, cleaning the dust and rust formed over the terminals, cleaning with CTC liquid up to the satisfaction and checking of diodes , excitation winding, isolating transformer and AVR panel and applying Dr. beck paint for insulation improvement over the strips/ winding and drying till getting sasfactory insulation resistance complete, and refixing the covers and testing complete all as specified and directed for the following capacity of alternators:

250 KVA to 750 KVA DG set

62.5 KVA DG set